INTRODUCTION SECTION A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS GENERAL MAINTENANCE This section contains the general safety precautions which must be observed during maintenance of the aerial platform. FAILURE TO COMPLY WITH SAFETY PRECAUTIONS LISTED IN THIS SECTION It is of utmost importance that maintenance personnel pay strict attention to these warnings and precautions to avoid COULD RESULT IN MACHINE DAMAGE, PERSONNEL INJURY OR DEATH AND IS A SAFETY VIOLATION.
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INTRODUCTION REVISON LOG Original Issue - August 28, 2006 Revised - January 7, 2013 Revised - November 8, 2016 Revised - December 05, 2017 3121234...
TABLE OF CONTENTS SECTION NO. TITLE PAGE NO SECTION A - INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS General ................... . A-1 Hydraulic System Safety .
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Do NOT Do the Following When Welding on JLG Equipment....... .
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TABLE OF CONTENTS SECTION NO. TITLE PAGE NO 3.11 Drive Motor (SN 0300183331 through 0300189341) ..........3-61 Description .
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TABLE OF CONTENTS SECTION NO. TITLE PAGE NO. 3.23 Generator ..................3-149 Maintenance Schedule .
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TABLE OF CONTENTS SECTION NO. TITLE PAGE NO SECTION 4 - BOOM & PLATFORM Platform ................... 4-1 Platform Valve Removal (Prior to SN 0300141319) .
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TABLE OF CONTENTS SECTION NO. TITLE PAGE NO. 4.12 Rotary Actuator ..................4-50 Theory of Operation .
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To Connect the JLG Control System Analyzer........
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 1-1. Operator Maintenance and Lubrication Diagram ........... . 1-6 1-2.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 3-46. Swashplate & Servo Piston ............... . . 3-64 3-47.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 3-103. EMR 2 Engine Side Equipment ..............3-172 3-104.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 5-1. Cylinder Barrel Support................5-3 5-2.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 5-58. Steer Cylinder (SN 0300142666 through 0300189340) ..........5-27 5-59.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 6-5. Analyzer Flow Chart, Prior to Version 5.X Software - Sheet 3 of 4 ........6-28 6-6.
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LIST OF FIGURES FIGURE NO. TITLE PAGE NO. 7-34. Electrical Schematics Caterpillar, Deutz EMR2 and GM (SN 0300139080 through 0300161729) - Sheet 1 of 10 ..............7-26 7-35.
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LIST OF TABLES TABLE NO. TITLE PAGE NO. Operating Specifications ................1-1 Specifications and Performance Data .
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LIST OF TABLES TABLE NO. TITLE PAGE NO. Machine Personality Settings and Function Speeds ..........6-22 Function Speeds (In Seconds) .
SECTION 1 - SPECIFICATIONS SECTION 1. SPECIFICATIONS 1.1 OPERATING SPECIFICATIONS 1.2 SPECIFICATIONS AND PERFORMANCE DATA Table 1-2. Specifications and Performance Data Table 1-1. Operating Specifications Swing 360° Maximum Work Load (Capacity) Tail Swing 4 ft. 8 in. (1.42 m) Unrestricted: 500 lbs.
Specific Gravity 0.922 Pour Point, Max -25°F (-32°C) NOTE: Aside from JLG recommendations, it is not advisable to mix oils of different brands or types, as they may not contain Flash Point, Min. 428°F (220°C) the same required additives or be of comparable viscosi- Operating Temp.
SECTION 1 - SPECIFICATIONS 1.10 OPERATOR MAINTENANCE 2. Wheel Bearings NOTE: The following numbers correspond to those in Figure 1-1., Operator Maintenance and Lubrication Diagram. Table 1-20. Lubrication Specifications SPECIFICATIONS Multipurpose Grease having a minimum dripping point of 350° F (177° C). Excellent water resistance and adhesive qualities, and being of extreme pressure type.
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SECTION 1 - SPECIFICATIONS 4. Hydraulic Return Filter 7. Platform Filter a. Platform Filter (Prior to SN 0300141319) Interval - Change as necessary. Interval - Change after first 50 hrs. and every 6 months or 300 hrs. thereafter or as indicated by Condition Indi- cator.
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SECTION 1 - SPECIFICATIONS 8. Suction Strainers 10. Oil Change w/Filter - Deutz Lube Point(s) - Fill Cap/Spin-on Element (JLG P/N 7016331) Capacity - 11 Quarts(10.5 L) Crankcase; Lube - EO Interval - Every Year or 1200 hours of operation...
SECTION 1 - SPECIFICATIONS 13. Fuel Filter - Ford 17. Air Filter Lube Point(s) - Replaceable Element Lube Point(s) - Replaceable Element Interval - Every Year or 1200 hours of operation. Interval - Every 6 months or 300 hours of operation or as indicated by the condition indicator 14.
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SECTION 1 - SPECIFICATIONS 1.11 DRAINING OIL BUILD UP FROM THE PROPANE 6. Remove the retainer clip for the LPG fuel temperature sensor and remove the sensor from the regulator body. REGULATOR (PRIOR TO SN 0300134626) During the course of normal operation oils may build inside the primary and secondary chambers of the pro- pane pressure regulator.
SECTION 1 - SPECIFICATIONS 1.13 PROPANE FUEL SYSTEM PRESSURE RELIEF 1.14 SERIAL NUMBER LOCATION A serial number plate is affixed to the left rear side of the frame. If the serial number plate is damaged or missing, the THE PROPANE FUEL SYSTEM OPERATES AT PRESSURES UP TO 312 PSI (21.5 machine serial number is stamped on the left side of the frame.
Service Technician as a person who has successfully com- cies corrected, this product will be fit for continued use. pleted the JLG Service Training School for the subject JLG product model. Reference the machine Service and Mainte- Preparation, Inspection, and Maintenance nance Manual and appropriate JLG inspection form for perfor- mance of this inspection.
Prior to each sale, lease, or Owner, Dealer, or User Qualified JLG Mechanic Service and Maintenance Manual rental delivery. and applicable JLG inspection form. Frequent Inspection In service for 3 months or 150 hours, whichever Owner, Dealer, or User Qualified JLG Mechanic Service and Maintenance Manual comes first;...
SECTION 2 - GENERAL Component Disassembly and Reassembly Bolt Usage and Torque Application When disassembling or reassembling a component, complete the procedural steps in sequence. Do not partially disassemble or assemble one part, then start on another. Always recheck SELF LOCKING FASTENERS, SUCH AS NYLON INSERT AND THREAD DEFORMING your work to assure that nothing has been overlooked.
SECTION 2 - GENERAL Lubrication Hydraulic Oil Refer to Section 1 for recommendations for viscosity ranges. Service applicable components with the amount, type, and grade of lubricant recommended in this manual, at the speci- Changing Hydraulic Oil fied intervals. When recommended lubricants are not avail- able, consult your local supplier for an equivalent that meets Filter elements must be changed after the first 50 hours or exceeds the specifications listed.
SECTION 2 - GENERAL CYLINDER DRIFT Cylinder Leakage Test Cylinder oil must be at stabilized ambient temperature Theory before beginning this test. When a hydraulic cylinder is supporting a load, cylinder drift Measure drift at cylinder rod with a calibrated dial indicator. may occur as a result of any of the circumstances below: In an area free of obstructions, cylinder must have load •...
2. Filament wound bearings should be replaced if any of • Ground only to structure being welded. the following is observed: Do NOT Do the Following When Welding on JLG a. Frayed or separated fibers on the liner surface. b. Cracked or damaged liner backing.
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SECTION 2 - GENERAL Table 2-3. Inspection and Preventive Maintenance Schedule INTERVAL Pre-Delivery Annual AREA Every 2 (Yearly) or Frequent Years Inspection Inspection Boom Assembly Boom Weldments 1,2,4 1,2,4 Hose/Cable Carrier Installations 1,2,9,12 1,2,9,12 Pivot Pins and Pin Retainers Sheaves, Sheave Pins Bearings Wear Pads Covers or Shields...
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SECTION 2 - GENERAL Table 2-3. Inspection and Preventive Maintenance Schedule INTERVAL Pre-Delivery Annual AREA Every 2 (Yearly) or Frequent Years Inspection Inspection Functions/Controls Platform Controls Ground Controls Function Control Locks, Guards, or Detents Footswitch Emergency Stop Switches (Ground & Platform) Function Limit or Cutout Switch Systems Drive Brakes Swing Brakes...
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21, 22 Paint and Appearance Stamp Inspection Date on Frame Notify JLG of Machine Ownership Footnotes: Prior to each sale, lease, or delivery In service for 3 months or 150 Hours; or Out of service for 3 months or more; or Purchased used...
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SECTION 2 - GENERAL 4150548 E Figure 2-1. Engine Operating Temperature Specifications - Deutz 2-10 3121234...
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SECTION 2 - GENERAL 4150548 E Figure 2-2. Engine Operating Temperature Specifications - Ford 3121234 2-11...
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SECTION 2 - GENERAL 4150548 E Figure 2-3. Engine Operating Temperature Specifications - Caterpillar 2-12 3121234...
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SECTION 2 - GENERAL 4150548 E Figure 2-4. Engine Operating Temperature Specifications - GM 3121234 2-13...
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SECTION 2 - GENERAL NOTES: 2-14 3121234...
The air pressure for pneumatic tires must be equal to the on the same axle should be the same. air pressure that is stenciled on the side of the JLG product Wheel Replacement or rim decal for safe and proper operational characteristics.
SECTION 3 - CHASSIS & TURNTABLE 2. Tighten nuts in the following sequence: 3.2 LOCKOUT CYLINDER BLEEDING ENSURE PLATFORM IS FULLY LOWERED AND BOOM IS CENTERED OVER REAR AXLE PRIOR TO BEGINNING BLEEDING PROCEDURE. ENSURE MACHINE IS ON A LEVEL SURFACE AND REAR WHEELS ARE BLOCKED, BRAKE WIRE IS DISCONNECTED.
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SECTION 3 - CHASSIS & TURNTABLE This page left blank intentionally. 3121234...
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SECTION 3 - CHASSIS & TURNTABLE 0258286 C 0274571 C 0272003 E Figure 3-1. Axle and Steering Installation without Tow Package - Sheet 1 of 2 3121234...
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SECTION 3 - CHASSIS & TURNTABLE 14 3 13 9 0274572 C 0271352 H Figure 3-3. Axle and Steering Installation with Tow Package- Sheet 1 of 2 3121234...
SECTION 3 - CHASSIS & TURNTABLE 3.3 OSCILLATING AXLE LOCKOUT TEST EMERGENCY TOWING (IF EQUIPPED) RUNAWAY VEHICLE/MACHINE HAZARD. MACHINE HAS NO TOWING BRAKES. TOWING VEHICLE MUST BE ABLE TO CONTROL MACHINE AT ALL TIMES. ON- LOCKOUT SYSTEM TEST MUST BE PERFORMED QUARTERLY, ANY TIME A SYS- HIGHWAY TOWING NOT PERMITTED.
SECTION 3 - CHASSIS & TURNTABLE 3.5 WHEEL DRIVE ASSEMBLY, 2WD 3. Through the access holes in the axle, tag and disconnect the hydraulic lines running to the drive motor and drive brake. Cap or plug all openings to ensure no dirt enters Removal the hydraulic system.
1. If re-installing the existing studs or installing new ones, the washers and nuts to secure the assembly together coat the threads of the studs with JLG Threadlocker and torque the nuts to 75 ft. lbs. (102 Nm). PN 0100011 before screwing them into the drive hub.
SECTION 3 - CHASSIS & TURNTABLE 3.6 DRIVE HUB (4WD MACHINES W/ INTEGRAL Tightening and Torquing Bolts BRAKE) If an air impact wrench is used to tighten bolts, extreme care should be taken to ensure that the bolts are not tightened beyond their specified torque.
SECTION 3 - CHASSIS & TURNTABLE Main Disassembly 6. Remove Input Sun Gear (17) from Input Carrier Sub- Assembly (3A). NOTE: Refer to Figure 3-9., Main Disassembly - Sheet 1 of 2 and 7. Remove Input Carrier Sub-Assembly (3A) from Housing Figure 3-10., Main Disassembly - Sheet 2 of 2.
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SECTION 3 - CHASSIS & TURNTABLE 7. Input Shaft 8. Output Sun Gear 17. Input Sun Gear Figure 3-10. Main Disassembly - Sheet 2 of 2 3121234 3-15...
SECTION 3 - CHASSIS & TURNTABLE Input Carrier Disassembly 3. Remove the 14 needle Bearings (3C) from the bore of the Planet Gear (3F). NOTE: Refer to Figure 3-11., Input Carrier Disassembly. 4. Repeat steps 1 through 3 for each of the two remaining 1.
SECTION 3 - CHASSIS & TURNTABLE Output Carrier Disassembly 3. Slide the Planet Gear (4F) and the two Thrust Washers (4B) out of the Carrier (4A). NOTE: Refer to Figure 3-12., Output Carrier Assembly. 4. Remove the 15 needle Bearings (4C) from the bore of the Planet Gear (4F).
SECTION 3 - CHASSIS & TURNTABLE Housing-Spindle Disassembly 5. Remove “A” position Bearing Cone (1D) from Bearing Cup (1D) in Housing (1E). NOTE: Refer to Figure 3-13., Housing-Spindle Disassembly. 6. Lift Housing (1E) off of Spindle (1A). 1. Place unit on bench with Spindle (1A) end down. 7.
SECTION 3 - CHASSIS & TURNTABLE Spindle-Brake Disassembly NOTE: The Pressure Plug (12) requires a special tool for installa- tion. It is not recommended to remove this plug unless it is leaking. The plug is called a Koenig Expander. The installa- NOTE: Refer to Figure 3-14., Spindle Brake Disassembly.
SECTION 3 - CHASSIS & TURNTABLE 1. Compress the Compression Springs (2-13) by installing a 4. Insert a Planet Shaft (3E) into the planet shaft hole in the minimum of three M4 x 16 mm Socket Head Capscrews end of the Carrier (3A) opposite the splined end. (2-11) equally spaced through End Plate (2-7) and into 5.
SECTION 3 - CHASSIS & TURNTABLE Output Carrier Sub-Assembly 8. Insert a Planet Shaft (4E) into one of the planet shaft holes on the Carrier (4A). The end of the planet shaft that does NOT have the roll pin hole should be inserted NOTE: Refer to Figure 3-16., Output Carrier Sub-Assembly.
SECTION 3 - CHASSIS & TURNTABLE Spindle Brake Sub-Assembly 11. Grease the small Backup Ring (2-4) and install in the small-diameter groove near the top of the Piston (2-8), on top of the small O-Ring (2-5). NOTE: Refer to Figure 3-17., Spindle Brake Sub-Assembly. NOTE: If piston comes pre-assembled with shipping bolts (2-11), NOTE: This procedure applies only to units with integral input skip to Step 15.
SECTION 3 - CHASSIS & TURNTABLE Housing-Spindle Sub-Assembly DW2B Integral Brake Check 1. Using appropriate fittings, connect hydraulic line from NOTE: Refer to Figure 3-18., Housing-Spindle Assembly. hand pump to brake port. NOTE: Spray a light film of oil on all component parts during 2.
SECTION 3 - CHASSIS & TURNTABLE Main Assembly 4. With the modified spline end facing up, place the Out- put Sun Gear (8) into mesh with the planet gears from the Output Carrier Sub-Assembly (4A). NOTE: Refer to Figure 3-19., Main Assembly - Sheet 1 of 2 and Fig- ure 3-20., Main Assembly - Sheet 2 of 2.
SECTION 3 - CHASSIS & TURNTABLE 3.7 DRIVE MOTOR - 2WD (PRIOR TO SN Rotary group complete 9 pistons, cylinder sub-assembly, valve plate (cw or ccw corresponding to the order) retaining plate 0300083331) and retaining ball. Spare Parts Kits Sealing kit, existing spare parts: shaft sealing ring, 6 different o-rings and a circlip (sealing mat.: perbunan) Swashplate Same sealing kit like shown above only seal material changed...
SECTION 3 - CHASSIS & TURNTABLE Figure 3-31. Drive Motor Cutaway 2. Change the shaft seal and check its sliding surface (drive shaft) and housing. Grease the sealing ring. Replacing the Drive Shaft Seal 1. Remove snap ring. 3121234 3-41...
SECTION 3 - CHASSIS & TURNTABLE 3. Be careful while you seal the drive shaft, use an adhesive 6. Assemble the snap ring in the correct position. tape. 4. Assemble the sealing ring, fitting tool holds the correct NOTE: This description shows how to change the drive shaft seal- position of the sealing ring in the pump housing.
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SECTION 3 - CHASSIS & TURNTABLE 3. Remove the port plate together with the valve plate 6. Remove the adjustment shim. (hold the valve plate so that the plate can’t fall down). 7. Unscrew the cap nut and remove it. 4.
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SECTION 3 - CHASSIS & TURNTABLE 9. Turn in the stopper max flow to get swivel angle zero. 13. Disassemble the plug. 14. Disassemble the control plate while moving the swash- 10. Disassemble the rotary group in horizontal position. plate. 11.
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SECTION 3 - CHASSIS & TURNTABLE 16. Disassemble the swashplate. 20. Disassemble the snap ring. 21. Disassemble the sealing ring. 17. Remove the spring. 22. The external front bearing ring is pulled out of the pump 18. Remove both bearing shells. housing.
SECTION 3 - CHASSIS & TURNTABLE 23. Remove the o-ring. Lifting of the valve plate isn’t shown. Assembly 1. Assemble the variable displacement pump in reverse order. 2. Measurement of the taper roller bearing pretension (see adjustment figure). 24. A usual commercial bearing puller is used to disassem- ble the external bearing ring of the taper roller bearing inside the port plate.
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SECTION 3 - CHASSIS & TURNTABLE 4. Pumps anti-clockwise driven must have a position of the 5. Assembly of the port plate and pump housing: valve plate 4° decentered in counter-clockwise position. NOTE: The correct position of the drilling that connects high pres- sure to the control valve.
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SECTION 3 - CHASSIS & TURNTABLE NOTE: Differential volume if you are rotating the threaded pin - each rota- tion is appr. 3,1 cm Figure 3-33. Flow Control Pilot Valves 3-48 3121234...
SECTION 3 - CHASSIS & TURNTABLE Testing and Setup Mechanical flow limiter: While screwing in the threaded pin you will be able to reduce the flow from Vg max to 50% of Vg max. DR: When pressure line is closed adjust the pressure of the controller (if it’s DFR design then open the adjustable orifice and increase force of the spring - FR -).
1. Use a jack to lift the frame enough so the tire and wheel assembly is off the ground. Place blocking strong 1. Apply a coat of JLG Threadlocker P/N 0100011 on cap- enough to support the weight of the machine under the screws.
SECTION 3 - CHASSIS & TURNTABLE 3.9 DRIVE HUB Cleaning and Inspection Disassembly 1. Thoroughly clean all parts in an approved cleaning sol- vent. 1. Position hub over suitable container and remove drain 2. Inspect bearing cups and cones for damage, pitting, cor- plugs (10) from unit.
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SECTION 3 - CHASSIS & TURNTABLE j. Place disconnect cap over cover cap with nipple fac- j. Place spacer into opposite side of cluster gear and against needle rollers. ing out and secure with two bolts. Torque bolts to 70-80 in. lbs. (7.9-9 Nm). k.
SECTION 3 - CHASSIS & TURNTABLE n. Line up cluster gear and thrust washers with hole in e. Install retaining ring into input shaft groove to carrier and slide planet shaft through. Ensure cham- secure spacers and spring to shaft. fered side of hole in planet shaft is lined up with pin hole in carrier.
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SECTION 3 - CHASSIS & TURNTABLE 3. Press new seal (2) into hub counterbore with flat metal side facing in. Use a flat object to ensure that seal is pressed evenly and is flush with hub face. EYE PROTECTION SHOULD BE WORN DURING RETAINING RING INSTALLATION. 7.
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SECTION 3 - CHASSIS & TURNTABLE 10. Install retaining ring (34) into input shaft retaining ring 14. Place o-ring (22) into hub counterbore. Use petroleum groove. or grease to hold o-ring in place. Slight stretching of o-ring may be necessary to insure proper seating. 15.
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SECTION 3 - CHASSIS & TURNTABLE 17. While holding ring gear, input gear, and cluster gears in 20. Install thrust washers and thrust bearing (39, 40) into mesh, place small side of cluster gears into mesh with carrier counterbore. internal gear. On ring gear, locate hole marked ‘X’ over one of counterbore holes in hub.
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SECTION 3 - CHASSIS & TURNTABLE 23. Locate four shoulder bolts (42), 90 degrees apart into 25. Place coupling (1) into spindle and onto input shaft. counterbore holes in hub marked in step (13). Torque shoulder bolts to 47 ft. lbs. (64 Nm). 26.
SECTION 3 - CHASSIS & TURNTABLE 3.10 DRIVE BRAKE Assembly 1. Lightly lubricate rotary shaft seal (12) and assemble to Disassembly housing (2) taking care not to damage seal lip. 1. Supporting brake: remove the six socket head cap- 2. Apply ring of Loctite 641 or equivalent adhesive to full screws and washers (13 &...
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SECTION 3 - CHASSIS & TURNTABLE 1. Shaft 6. Outer Plate 11. Retaining Ring 16. Backup Ring 21. Plug 2. Housing 7. Gasket 12. Shaft Seal 17. O-ring 22. Spring (Natural) 3. Friction Plate 8. Cylinder 13. Capscrew 18. Backup Ring 23.
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SECTION 3 - CHASSIS & TURNTABLE 3.11 DRIVE MOTOR (SN 0300183331 THROUGH Disassembly 0300189341) NOTE: Removal of the end cap voids warranty. Description During assembly, coat all moving parts with a film of clean hydraulic oil. This assures that these parts will be lubricated The drive motors are low to medium power, two-position axial during start-up.
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SECTION 3 - CHASSIS & TURNTABLE 22. Screw 23. End Cap 24. O-ring Figure 3-41. End Cap 13. Using an 8 mm internal hex wrench, remove the end capscrews (22). 14. Remove the end cap (23). Remove o-ring (24) from the 14.
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SECTION 3 - CHASSIS & TURNTABLE 18. Remove minimum angle stop (29) and servo spring (30) from the housing. 31. Cylinder Kit Assembly Figure 3-43. Cylinder Kit 19. Turn the housing on its side and remove the cylinder kit assembly (31). Set the assembly aside, being careful not to scratch the running surface.
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SECTION 3 - CHASSIS & TURNTABLE 20. Turn the housing over and remove the snap ring (32) retaining the shaft seal and support washer. Remove the Lift here support washer (33) and carefully pry out the shaft seal (34). Discard the seal. NOTE: To avoid damaging the shaft during seal removal.
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SECTION 3 - CHASSIS & TURNTABLE 28. Turn the block over. Using a press, apply pressure on the block spring washer (50) to compress the block spring. Compress the spring enough to safely remove the spiral retaining ring (51). While maintaining pressure, unwind the spiral retaining ring (51).
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SECTION 3 - CHASSIS & TURNTABLE CYLINDER BLOCK or scratched blocks. Blocks may be resurfaced to the specifica- tions shown in the drawing, provided resurfacing will not Measure the cylinder block height. Replace blocks worn reduce the block height below the minimum specification. beyond the minimum height specification.
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SECTION 3 - CHASSIS & TURNTABLE SHAFT BEARINGS Assembly Inspect bearings for excessive wear or contamination. Rotate 1. Install new o-ring (1) and piston seal (2) to the servo pis- the bearings while feeling for uneven movement. Bearings ton (3). Install the piston seal over the o-ring. should spin smoothly and freely.
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SECTION 3 - CHASSIS & TURNTABLE 4. Turn the block over and install the retaining ring (8), hold-down pins (9) and ball guide (10) to the cylinder block. RISK OF PERSONAL INJURY: COMPRESSING THE BLOCK SPRING REQUIRES ABOUT 80 TO 90 LBF (350 TO 400 N) OF FORCE. USE A PRESS SUFFICIENT TO 5.
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SECTION 3 - CHASSIS & TURNTABLE 8. Press front shaft bearing (15) onto shaft (16). Press bear- 10. Verify swashplate and bearings are properly seated. ing onto shaft with lettering facing out. Lubricate bear- Install the cylinder kit (19) onto the shaft. Install with the ing rollers.
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SECTION 3 - CHASSIS & TURNTABLE 12. Press the rear shaft bearing (22) into the end cap. Install 15. Install the end cap (25) onto the housing with the end the bearing with letters facing out. Press until bearing capscrews (26). Check to ensure the end cap will prop- surface is 0.08 ±0.01 in.
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SECTION 3 - CHASSIS & TURNTABLE 18. Cover shaft splines with an installation sleeve. Install a 19. Install remaining plugs and fittings to the housing. Refer new shaft seal (27) with the cup side facing the motor. to the drawing below for wrench sizes and installation Press seal into housing until it bottoms out.
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SECTION 3 - CHASSIS & TURNTABLE 20. Install orifice poppet (30). Initial Start-up Procedures Follow this procedure when starting-up a new motor or when installing a motor that has been removed. 11/16 in 27 ft.lbs. (37 Nm) UNINTENDED MOVEMENT OF THE MACHINE OR MECHANISM MAY CAUSE 5/8 in INJURY TO THE TECHNICIAN OR BYSTANDERS.
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SECTION 3 - CHASSIS & TURNTABLE Troubleshooting Table 3-5. Excessive Noise and/or Vibration Item Description Action Check oil level in reservoir and oil Insufficient hydraulic fluid could lead to cavitation that would cause sys- Fill the reservoir to the proper level and ensure that oil supply to the motor supply to the motor.
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SECTION 3 - CHASSIS & TURNTABLE Shaft Seal Replacement INSPECT THE COMPONENTS Inspect the new seal, the motor housing seal bore and the sealing area on the shaft for rust, wear and contamination. Pol- REMOVAL ish the shaft and clean the housing if necessary. 1.
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SECTION 3 - CHASSIS & TURNTABLE Loop Flushing Valve INSPECT THE COMPONENTS Inspect new o-rings and the sealing area for rust, wear, or con- tamination. Also check springs and poppet for wear. REMOVAL 1. Using a 11/16 in. internal hex wrench remove plug (1) INSTALLATION and (2).
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SECTION 3 - CHASSIS & TURNTABLE 3.12 RE-ALIGNING DRIVE HUB INPUT COUPLING 2. Pressurize the brake release port 155 to 200 psi (10.6 to 13.8 bar) to release the brake. The following procedure applies to drive hubs with integral 3. Verify that the brake is released by rotating the input brakes.
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6. Place swing drive hub in the clean area. 7. Refer to Section 3.14 and Section 3.18 for swing drive maintenance. 3. Apply JLG Threadlocker P/N 0100019 and torque pivot bolt to 205 ft. lbs. (280 Nm) (shown below). PIVOT BOLT...
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23-25 ft. lbs. (31- 33 Nm). FILL PLUG 7. Apply JLG Threadlocker P/N 0100019 and torque set- screw 50 ft. lbs. (68 Nm). 8. Apply JLG Threadlocker P/N 0100019 to the jam nut and tighten. DRAIN PLUG 3-78 3121234...
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SECTION 3 - CHASSIS & TURNTABLE 3.14 SWING HUB (PRIOR TO SN 0300134352) WHEN REBUILDING OR REPAIRING THE UNIT, THE RETAINING RING (1I), O- Disassembly RINGS (5) AND SEAL (1B) SHOULD ALWAYS BE REPLACED. 1. Loosen all 12 cover bolts (12) & (13) and drain the oil Main Assembly Procedure from the unit.
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SECTION 3 - CHASSIS & TURNTABLE 3. Place o-ring (5) into hub counterbore. Use petroleum 6. With shoulder side of ring gear (4) facing down, place jelly to hold o-ring in place. Also at this time locate and ring gear over (into mesh with) large gears. Be sure that mark the 4 counter beamed holes in the face of the hub punch marks remain in correct location during ring gear (1G).
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SECTION 3 - CHASSIS & TURNTABLE 8. Input gear (8) is installed, meshing with teeth of the 11. Place o-ring (5) into cover (6) counterbore. Use petro- large diameter cluster gear (3F). The counterbore on the leum jelly to hold o-ring in place. input gear (8) locates on the shoulder of the thrust spacer (9).
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SECTION 3 - CHASSIS & TURNTABLE 13. Install regular grade 8 bolts (12) into remaining holes. Hub Shaft Sub-Assembly 1. Press bearing cone (1D) onto shaft (1A). 14. Pipe plugs (20) are to be installed into cover (6) using a lubricant of some sort.
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SECTION 3 - CHASSIS & TURNTABLE 4. Returning the hub (1G) to locate on the large diameter 7. Pipe plugs (1J & 1K) should be checked and/ or installed end, the output shaft (1A) is carefully installed into the at this time in the assembly. hub (1G).
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SECTION 3 - CHASSIS & TURNTABLE 10. A soft metal punch should be used to ensure that this Carrier Sub-Assembly retaining ring (1I) is completely seated in the groove of the output shaft (1A). 1. Apply a coat of grease or petroleum jelly to cluster gear bore.
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SECTION 3 - CHASSIS & TURNTABLE 4. Place second set of sixteen needle rollers into cluster 7. Line up cluster gear and thrust washer with hole in car- rier and slide planet shaft through. Line up chamfered gear. side of hole in planet shaft with pin hole in carrier. 5.
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SECTION 3 - CHASSIS & TURNTABLE 3.15 SWING BRAKE (PRIOR TO SN 0300134352) Assembly 1. Lightly lubricate rotary shaft seal (12) and assemble to Disassembly housing (2) taking care not to damage seal lip. 1. Supporting brake:, remove the six socket head cap- 2.
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SECTION 3 - CHASSIS & TURNTABLE 1. Shaft 6. Outer Plate 11. Retaining Ring 16. Backup Ring 21. Plug 2. Housing 7. Gasket 12. Shaft Seal 17. O-ring 22. Spring (Natural) 3. Friction Plate 8. Cylinder 13. Capscrew 18. Backup Ring 23.
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SECTION 3 - CHASSIS & TURNTABLE 3.16 SWING DRIVE BRAKE NOTE: Be sure to use the same number of springs and the same spring pattern as recorded during disassembly. Disassembly 8. Position plate (12) on spring (13). NOTE: Discs (11 & 12) and return plate (13) must remain dry 1.
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SECTION 3 - CHASSIS & TURNTABLE 3.17 SWING MOTOR (PRIOR TO SN 0300134352) Disassembly and inspection 1. Place the Torqlink™ in a soft jawed vice, with coupling shaft (12) pointed down and the vise jaws clamping firmly on the sides of the housing (18) mounting flange or port bosses.
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SECTION 3 - CHASSIS & TURNTABLE 1. Special Bolts 8B. Stator or Stator Vane 16. Seal 2. End Cover 8C. Vane 17. Backup Washer 3. Seal Ring-Commutator 8D. Stator Half 18. Housing 4. Seal Ring 9. Wear Plate 18A. O-Ring 5.
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SECTION 3 - CHASSIS & TURNTABLE 5. If the end cover (2) is equipped with shuttle valve com- 7. Remove commutator ring (6). Inspect commutator ring for cracks, or burrs. ponents, remove the two previously loosened plugs (21). 8. Remove commutator (5) and seal ring (3) Remove seal ring from commutator, using an air hose to blow air into ring groove until seal ring is lifted out and discard seal ring.
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SECTION 3 - CHASSIS & TURNTABLE 9. Remove manifold (7) and inspect for cracks surface scor- NOTE: The rotor set (8) components may become disassembled during service procedures. Marking the surface of the rotor ing, brinelling or spalling. Replace manifold if any of and stator that is facing UP, with etching ink or grease pen- these conditions exist.
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SECTION 3 - CHASSIS & TURNTABLE NOTE: If rotor set (8) has two stator halves (8B & 8D) and two sets 14. Check exposed portion of coupling shaft (12) to be sure of seven vanes (8C & 8E) as shown in the alternate con- you have removed all signs of rust and corrosion which struction TG rotor set assembly view, check the rotor lobe might prevent its withdrawal through the seal and bear-...
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SECTION 3 - CHASSIS & TURNTABLE NOTE: Minor shaft wear in seal area is permissible. If wear exceeds 19. Remove housing (18) from vise, invert it and remove and discard seal (20). A blind hole bearing or seal puller is 0.020 in.
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SECTION 3 - CHASSIS & TURNTABLE 21. If the housing (18) assembly has passed inspection to this point, inspect the housing bearings/bushings (19) and (13) and if they are captured in the housing cavity the two thrust washers (14) and thrust bearing (15). The bearing rollers must be firmly retained in the bearing cages, but must rotate and orbit freely.
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SECTION 3 - CHASSIS & TURNTABLE Assembly Replace all seals and seal rings with new ones each time you reassemble the Torqlink™ unit. Lubricate all seals and seal rings with SAE 10W40 oil or clean grease before assembly. NOTE: Individual seals and seal rings as well as a complete seal kit are available.
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SECTION 3 - CHASSIS & TURNTABLE 2. The Torqlink™ inner housing bearing/bushing (13) can now be pressed into its counterbore in housing (18) flush to 0.03 in. (0.76 mm) below the housing wear plate contact face. Use the opposite end of the bearing man- drel that was used to press in the outer bearing/bushing (19).
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SECTION 3 - CHASSIS & TURNTABLE 4. Place housing (18) assembly into a soft jawed vise with 6. Assemble thrust washer (14) then thrust bearing (15) that was removed from the Torqlink™. the coupling shaft bore down, clamping against the mounting flange.
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SECTION 3 - CHASSIS & TURNTABLE 9. Apply a small amount of clean grease to a new seal ring (4) and insert it into the housing (18) seal ring groove. THE OUTER BEARING (19) IS NOT LUBRICATED BY THE SYSTEM’S HYDRAULIC FLUID.
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SECTION 3 - CHASSIS & TURNTABLE 11. Assemble wear plate (9) over the drive link (10) and NOTE: The rotor set rotor counterbore side must be down against alignment studs onto the housing (18). wear plate for drive link clearance and to maintain the original rotor-drive link spline contact.
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SECTION 3 - CHASSIS & TURNTABLE 16. Apply grease to a new seal ring (4) and insert it in the seal ring groove exposed on the manifold. 19. If shuttle valve components items #21, were removed from the end cover (2) turn a plug (21), loosely into one end of the valve cavity in the end cover.
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SECTION 3 - CHASSIS & TURNTABLE NOTE: The special bolts required for use with the relief or shuttle valve (24) end cover assembly (2) are longer than the bolts required with standard and cover assembly. Refer to the individual service parts lists or parts list charts for correct service part number if replacement is required.
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SECTION 3 - CHASSIS & TURNTABLE One Piece Stator Construction 4. Assemble six vanes (8C), or as many vanes that will read- ily assemble into the stator vane pockets. A disassembled rotor (8A) stator (8B) and vanes (8C) that can- not be readily assembled by hand can be assembled by the following procedures.
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SECTION 3 - CHASSIS & TURNTABLE 3.18 SWING HUB (SN 0300134352 THROUGH Tightening and Torquing Bolts 0300189341) If an air impact wrench is used to tighten bolts, extreme care should be taken to ensure that the bolts are not tightened Roll, Leak And Brake Testing beyond their specified torque.
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SECTION 3 - CHASSIS & TURNTABLE Motor Control Valve Disassembly 4. Using a wrench, loosen jam nuts on Elbow Fittings (30) and remove fittings from Brake (6) and Motor Control Valve (32). NOTE: Refer to Figure 3-66., Motor Control Valve. 5.
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SECTION 3 - CHASSIS & TURNTABLE Motor and Brake Disassembly 4. Remove the Springs (8L) from the piston. 5. Apply less than 50 psi (3.45 bar) air to the “brake port” to NOTE: Refer to Figure 3-67., Motor and Brake. remove Brake Piston (8A).
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SECTION 3 - CHASSIS & TURNTABLE Main Drive Disassembly 5. Remove Thrust Washer (11) from between Brake Hous- ing (6) and Carrier Subassembly. NOTE: Refer to Figure 3-68., Main Drive Assembly. 6. Remove Ring Gear (4) from Housing (1G). 7. Remove O-ring (5) from between Ring Gear (4) and 1.
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SECTION 3 - CHASSIS & TURNTABLE Hub-Shaft Disassembly NOTE: The Lip Seal (1B) will be pressed out of the Housing (1G) by the Bearing Cone (1D) during this step. NOTE: Refer to Figure 3-69., Hub-Shaft. 4. Remove the Bearing Cone (1E) from the Housing (1G). 1.
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SECTION 3 - CHASSIS & TURNTABLE Carrier Disassembly 2. Remove the Planet Shaft (3E) from the Carrier (3A). Use a small punch to remove the Roll Pin (3D) from the Planet Shaft (3E). NOTE: Refer to Figure 3-70., Carrier. 3. Slide the Planet Gear (3F), the two Thrust Washers (3B) out of the Carrier (3A).
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SECTION 3 - CHASSIS & TURNTABLE Hub-Shaft Assembly Carrier Assembly NOTE: Refer to Figure 3-70. Carrier. NOTE: Refer to Figure 3-69., Hub-Shaft. 1. Apply a liberal Coat of grease to the bore of Cluster Gear 1. Press Bearing Cup (1C) into Housing (1G) taking care to (3F).
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SECTION 3 - CHASSIS & TURNTABLE Main Drive Assembly NOTE: If gears do not mesh easily or Carrier Assembly does not rotate freely, then remove the Carrier and Ring Gear and check the Cluster Gear timing. NOTE: Refer to Figure 3-68., Main Drive Assembly. 9.
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SECTION 3 - CHASSIS & TURNTABLE Motor and Brake Assembly Motor Control Valve Assembly NOTE: Refer to Figure 3-67., Motor and Brake. NOTE: Refer to Figure 3-66., Motor Control Valve. 1. Alternate Stators (8K) (O.D. lobes) with Rotors (8J) (I.D. 1.
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SECTION 3 - CHASSIS & TURNTABLE 3.19 SWING MOTOR (SN 0300134352 TO 0300189341) Disassembly 1. Place the Torqmotor™ in a soft jawed vice, with coupling shaft (12) pointed down and the vise jaws clamping firmly on the sides of the housing (18) mounting flange or port bosses.
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SECTION 3 - CHASSIS & TURNTABLE 1. Special Bolts 8. Rotor Set 12. Coupling Shaft 18A. O-Ring 2. End Cover 8A. Rotor 13. Bearing/Bushing, Inner 19. Bearing/Bushing, Outer 3. Seal Ring-Commutator 8B. Stator or Stator Vane 14. Thrust Washer 20. Dirt & Water Seal 4.
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SECTION 3 - CHASSIS & TURNTABLE 5. If the end cover (2) is equipped with shuttle valve com- NOTE: A polished pattern (not scratches) on the cover from rota- ponents, remove the two previously loosened plugs tion of the commutator (5) is normal. Discoloration would (21).
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SECTION 3 - CHASSIS & TURNTABLE 10. Remove rotor set (8) and wear plate (9), together to retain the rotor set in its assembled form, maintaining the same rotor vane (8C) to stator (8B) contact surfaces. The drive link (10) may come away from the coupling shaft (12) with the rotor set, and wear plate.You may have to shift the rotor set on the wear plate to work the drive link out of the rotor (8A) and wear plate.
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SECTION 3 - CHASSIS & TURNTABLE NOTE: Series TG and TH may have a rotor set with two stator NOTE: If rotor set (8) has two stator halves (8B & 8D) and two sets halves (8B & 8D) with a seal ring (4) between them and two of seven vanes (8C &...
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SECTION 3 - CHASSIS & TURNTABLE 14. Check exposed portion of coupling shaft (12) to be sure NOTE: Minor shaft wear in seal area is permissible. If wear exceeds you have removed all signs of rust and corrosion which 0.020 in. (0.51 mm) diametrically, replace coupling shaft. might prevent its withdrawal through the seal and bear- ing.
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SECTION 3 - CHASSIS & TURNTABLE 19. Remove seal (16), backup ring (17) and backup washer 21. Inspect housing (18) assembly for cracks, the machined (25) from large frame, housing by working them around surfaces for nicks, burrs, brinelling or corrosion. Remove unseated thrust washers (14) and thrust bearing (15) burrs that can be removed without changing dimen- and out of the housing.
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SECTION 3 - CHASSIS & TURNTABLE 22. If the housing (18) assembly has passed inspection to NOTE: The depth or location of bearing/bushing (13) in relation to this point, inspect the housing bearings/bushings (19) the housing wear plate surface and the depth or location and (13) and if they are captured in the housing cavity of bearing/bushing (19) in relation to the beginning of the two thrust washers (14) and thrust bearing (15).
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SECTION 3 - CHASSIS & TURNTABLE Assembly Replace all seals and seal rings with new ones each time you reassemble the Torqmotor™ unit. Lubricate all seals and seal rings with SAE 10W40 oil or clean grease before assembly. NOTE: Individual seals and seal rings as well as a complete seal kit are available.
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SECTION 3 - CHASSIS & TURNTABLE 2. The Torqmotor™ inner housing bearing/bushing (13) can now be pressed into its counterbore in housing (18) flush to 0.03 in. (0.76 mm) below the housing wear plate contact face. Use the opposite end of the bearing man- drel that was used to press in the outer bearing/ bush- ing (19).
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SECTION 3 - CHASSIS & TURNTABLE 4. Place housing (18) assembly into a soft jawed vise with the coupling shaft bore down, clamping against the ORIGINAL DESIGN LARGE FRAME, TF & TG TORQMOTORS™ THAT DO NOT HAVE mounting flange. BACKUP WASHER (25) WHEN DISASSEMBLED MUST BE ASSEMBLED WITH A NEW BACKUP WASHER (17), NEW BACKUP WASHER (25), AND NEW SEAL (16).
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SECTION 3 - CHASSIS & TURNTABLE 8. Be sure that a generous amount of clean corrosion resis- tant grease has been applied to the lower (outer) hous- ing bearing/bushing (19). Install the coupling shaft (12) into housing (18), seating it against the thrust bearing (15) in the housings.
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SECTION 3 - CHASSIS & TURNTABLE 10. Install drive link (10) the long splined end down into the 12. Apply a small amount of clean grease to a new seal ring coupling shaft (12) and engage the drive link splines (4) and assemble it into the seal ring groove on the wear into mesh with the coupling shaft splines.
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SECTION 3 - CHASSIS & TURNTABLE 14. Apply clean grease to a new seal ring (4) and assemble it 16. Apply grease to a new seal ring (4) and insert it in the in the seal ring groove in the rotor set contact side of seal ring groove exposed on the manifold.
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SECTION 3 - CHASSIS & TURNTABLE 19. Assemble a new seal ring (4) into end cover (2) and assemble end cover over the alignment studs and onto the commutator set. If the end cover has only 5 bolt holes be sure the cover holes are aligned with the 5 threaded holes in housing (18).
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SECTION 3 - CHASSIS & TURNTABLE NOTE: The special bolts required for use with the relief or shuttle valve (24) end cover assembly (2) are longer than the bolts required with standard and cover assembly. Refer to the individual service parts lists or parts list charts for correct service part number if replacement is required.
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SECTION 3 - CHASSIS & TURNTABLE One Piece Stator Construction 4. Assemble six vanes (8C), or as many vanes that will read- ily assemble into the stator vane pockets. A disassembled rotor (8A) stator (8B) and vanes (8C) that can- not be readily assembled by hand can be assembled by the following procedures.
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NOTE: This check is designed to replace the existing bearing bolt d. Swing the turntable 90 degrees, and check some torque checks on JLG Lifts in service. This check must be selected bolts at the new position. performed after the first 50 hours of machine operation and every 600 hours of machine operation thereafter.
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SECTION 3 - CHASSIS & TURNTABLE Figure 3-79. Swing Bearing Tolerance Measuring Point. Figure 3-78. Swing Bolt Feeler Gauge Check. Swing Bearing Removal Wear Tolerance 1. From Ground Control station, operate the boom ade- quately to provide access to frame opening to rotary coupling.
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7. Spray a light coat of Safety Solvent 13 on the new bear- Swing Bearing Installation ing bolts. Then apply a light coating of JLG Threadlocker P/N 0100019 to the new bearing bolts, and install the 1. Using suitable lifting equipment, carefully lower the bolts and washers through the turntable and inner race swing bearing into position on the frame.
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SECTION 3 - CHASSIS & TURNTABLE 3.21 ROTARY COUPLING (PRIOR TO SN 0300137913) Table 3-8. Coupling Port Information Table (Prior to SN 0300137913) Use the following procedure to install the seal kit. Operating Proof Port Port 1. If not already removed, remove the axle oscillation valve Description Pressure Pressure...
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SECTION 3 - CHASSIS & TURNTABLE 1. O-ring 6. Spring 11. Housing 16. Bearing 2. Plug 7. Valve Block Plunger 12. Retaining Ring 17. Cap Seal 3. Check Valve 8. Valve Block 13. Ring 18. O-ring 4. Screw 9. O-ring 14.
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SECTION 3 - CHASSIS & TURNTABLE 1660303 B Figure 3-82. Rotary Coupling Port Location (Prior to SN 0300137913) 3-144 3121234...
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SECTION 3 - CHASSIS & TURNTABLE 3.22 ROTARY COUPLING (SN 0300137913 6. Remove proximity switch. 7. Assemble lip seals (2) in direction shown in Figure 3-83., THROUGH 0300189341) Rotary Coupling Seal Installation (SN 0300137913 Use the following procedure to install the seal kit. through 0300189341).
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SECTION 3 - CHASSIS & TURNTABLE 1. Center Body 6. Thrust Ring 2. Seal 7. Snap Ring 3. Housing 8. Valve Block (Axle Oscillation) 4. O-ring 9. O-ring 5. Seal 10. Proximity Switch Figure 3-84. Rotary Coupling Cutaway (SN 0300137913 through 0300189341) 3-146 3121234...
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SECTION 3 - CHASSIS & TURNTABLE 1001106974 B Figure 3-85. Rotary Coupling Port Location (SN 0300137913 through 0300189341) 3121234 3-147...
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SECTION 3 - CHASSIS & TURNTABLE COMPLETE VALVE BLOCK ASSEMBLY 1001107531 A 1. Housing 7. Bracket 13. Cap Seal 18. Capscrew 23. Check Valve 28. Washer 2. Body 8. Locknut 14. Thrust Ring 19. O-ring 24. Plunger Valve 29. Locknut 3.
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SECTION 3 - CHASSIS & TURNTABLE EVERY 500 HOURS Table 3-9. Coupling Port Information Table (SN 0300137913 Every 500 hours of operation, service the generator brushes through 0300189341) and slip rings. Hostile environments may require more fre- Operating Proof quent service. Port Port Size Description...
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SECTION 3 - CHASSIS & TURNTABLE Overload Protection Inspecting Brushes, Replacing Brushes, and Cleaning Slip Rings Refer to Figure 3-87., Inspecting Generator Brushes, Replacing STOP THE ENGINE WHENEVER CHECKING OR INSPECTING THE CIRCUIT Brushes, and Cleaning Slip Rings. BREAKER. INSPECTING BRUSH POSITION The circuit breaker protects the generator windings from over- Inspect brush alignment with slip rings.
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SECTION 3 - CHASSIS & TURNTABLE Brush Position On Slip Rings Acceptable Unacceptable Brushes must ride completely on slip rings 1/4 in (6 mm) Or Less - Replace 7/16 in - 1/2 in (11 - 12 mm) New 1. Brush Holder Assembly 2.
SECTION 3 - CHASSIS & TURNTABLE Generator Disassembly and Assembly 2. Remove brush holder assembly. 3. Disassemble generator parts shown in Figure 3-88. Refer to Figure 3-89. and Figure 3-90. to determine if trouble is in stator, rotor, control box, or combination of these compo- 4.
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SECTION 3 - CHASSIS & TURNTABLE This page left blank intentionally. 3121234 3-153...
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SECTION 3 - CHASSIS & TURNTABLE Lead Connection List for Generator NOTE: Apply small amount of dielectric grade, nonconductive electric grease to connectors where factory-applied grease NOTE: Table shows physical lead connections and should be used had been present. with circuit diagram (table replaces wiring diagram). Table 3-10.
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SECTION 3 - CHASSIS & TURNTABLE Troubleshooting Table 3-11. Troubleshooting Trouble Remedy No generator output at platform AC receptacles. Be sure generator control switch is turned on at platform. Check and secure electrical connections at platform, generator, and control box. Be sure all equipment is turned off when starting unit.
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SECTION 3 - CHASSIS & TURNTABLE RETURN ON FUEL TANK TO LP FUEL SHUT-OFF TO ENGINE 1001114634 F 26.Fuel Filter Figure 3-100. GM Engine 3.0L Tier III/IV Installation - Sheet 2 of 2 3121234 3-167...
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Power/Emergency Stop switch has been pulled on. The lamp and glow plugs will remain ener- gized for the period of time specified by the setting in the JLG Control System. Engine start shall be disabled during this period.
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SECTION 3 - CHASSIS & TURNTABLE Replacing Engine Oil 5. Open the oil drain valve. 6. Drain the oil. 1. Allow the engine to warm up. The engine oil should reach approximately 176° F (80° C). 7. Close the oil drain valve. 2.
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SECTION 3 - CHASSIS & TURNTABLE Replacing the Oil Filter 3. Catch any escaping oil. 4. Clean any dirt from filter carrier sealing surface. 5. Lightly coat new oil filter rubber gasket with clean oil. 1. Wipe the area around the filter to clean any dirt from the area.
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Replacing the Fuel Filter 3.25 DEUTZ EMR 2 The EMR2 consists of the sensors, the control unit and the actuator. Engine-side controls as well as the JLG Control Sys- tem are connected by means of separate cable harnesses to the EMR control unit.
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SECTION 3 - CHASSIS & TURNTABLE 3.26 GM ENGINE GENERAL MAINTENANCE • Check ignition coil and spark plug cables for hardening, cracking, chafing, separation, split boot covers proper fit Maintenance of the Drive Belt • Replace spark plugs at the proper intervals as prescribed in The serpentine drive belt utilizes a spring loaded tensioner the engine manufacturer’s manual which keeps the belt properly adjusted.
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SECTION 3 - CHASSIS & TURNTABLE 6. If the oil level is below the "ADD" mark, proceed to Step Coolant Fill Procedure - Dual Fuel Engine 7 and 8 and reinstall the dipstick into the dipstick tube. 7. Remove the oil filter cap from the valve rocker arm cover.
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3. With the radiator cap still removed, start the engine and run until the thermostat opens. The thermostat opens at 170° F (77° C), which can be checked using the JLG handheld analyzer. WHILE ENGINE IS RUNNING, AIR AND/OR STEAM MAY BE PRESENT COMING FROM THE RADIATOR.
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SECTION 3 - CHASSIS & TURNTABLE 3.27 GM ENGINE DUAL FUEL SYSTEM Electric Lock Off The Dual Fuel system allows the operator to operate the vehi- The Electric Lock Off device is an integrated assembly. When cle on either gasoline or LPG by positioning a selector switch energized the solenoid opens the valve and allows the Pro- in the operator's platform.
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SECTION 3 - CHASSIS & TURNTABLE Low Pressure Regulator (LPR) Air Fuel Mixer The LPR is a combination vaporizer, pressure regulating The air valve mixer is an air-fuel metering device and is com- device. The LPR is a negative pressure, two stage regulator that pletely self-contained.
Page 241
SECTION 3 - CHASSIS & TURNTABLE Electronic Throttle Control (ETC) Engine Control Module Engine speed and load control is maintained by an ETC device. To obtain maximum effect from the catalyst and accurate con- Speed and load control are determined by the ECM. Defaults trol of the air fuel ratio the emission certified engine is programmed into the ECM software and throttle position sen- equipped with an onboard computer or Engine Control Unit...
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SECTION 3 - CHASSIS & TURNTABLE Heated Exhaust Gas Oxygen Sensor Gasoline Fuel Pump There are two Heated Exhaust Gas Oxygen Sensors (HEGO). The Gasoline is stored as a liquid in the fuel tank and in drawn into the fuel system by an electric fuel pump. The fuel pump The first HEGO is mounted in the exhaust system downstream will receive a signal from the ECM to prime the fuel system for of the engine.
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SECTION 3 - CHASSIS & TURNTABLE Fuel Filter 3.28 GM ENGINE FUEL SYSTEM REPAIR Propane Fuel System Pressure Relief After the fuel is drawn into the fuel pump, the fuel flows through the gasoline fuel filter. The fuel filter will trap small particles as the fuel passes through the filter to remove debris and prevents the fuel pressure and temperature manifold and THE PROPANE FUEL SYSTEM OPERATES AT PRESSURES UP TO 312 PSI (21.5...
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SECTION 3 - CHASSIS & TURNTABLE Electronic Pressure Regulator (EPR) Assembly 10. Disconnect the EPR electrical connector Replacement 11. Remove the (3) three nuts from the EPR isolators and the EPR mounting bracket 12. Remove the EPR from the bracket 13.
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SECTION 3 - CHASSIS & TURNTABLE 10. Start the vehicle and leak check the propane fuel system Temperature Manifold Absolute Pressure (TMAP) at each serviced fitting Refer to Propane Fuel System Sensor Leak Test. Figure 3-127. Pressure Regulator Section PRESSURE REGULATOR SECTION REMOVAL Figure 3-128.
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SECTION 3 - CHASSIS & TURNTABLE Electronic Throttle Control Replacement 2. Install the two quad seals. Install one seal at a time to insure the seal does not roll. The seal must sit flat on the throttle body. See Figure 3-128. REMOVAL 1.
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3. Remove the hose from each of the fittings. INSTALLATION NOTE: Use hose material and lengths specified by JLG. 1. Install the hose clamps to each hose and set the clamp back on each hose to make installation easier.
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SECTION 3 - CHASSIS & TURNTABLE 3.29 GM ENGINE LPG FUEL SYSTEM DIAGNOSIS Diagnostic Aids This procedure is intended to diagnose a vehicle operating on Fuel System Description LPG. If the vehicle will not continue to run on LPG, refer to Hard Start for preliminary checks.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-12. LPF Fuel System Diagnosis STEP ACTION VALUE(S) Were you referred to this procedure by a DTC diagnostic chart? Go to Step 3 Go to Step 2 Perform the On Board Diagnostic (OBD) System Check. Go to the Go to Step 3 Are any DTCs present in the ECM?
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SECTION 3 - CHASSIS & TURNTABLE Table 3-12. LPF Fuel System Diagnosis STEP ACTION VALUE(S) 1. Turn the ignition OFF. Go to Step 23 Go to Step 17 2. Close the manual shut-off valve on the LPG tank. CAUTION: When disconnecting LPG fuel lines, liquid LPG may be present. Perform this step in a well ventilated area.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Important Preliminary Checks Before Using This Section Before using this section, you should have performed On Board Diagnostic Check and determined that: 1. The Control Module and MIL (Malfunction Indicator Lamp) are operating correctly. 2.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Intermittent Malfunction Indicator Lamp The following components can cause intermittent MIL and no DTC(s): (MIL) A defective relay, Control Module driven solenoid, or a switch that can cause electrical system interference. Normally, the problem will occur when the faulty component is operating.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Exhaust System Checks Check the exhaust system for a possible restriction: - Inspect the exhaust system for damaged or collapsed pipes - Inspect the muffler for signs of heat distress or for possible internal failure. Check for possible plugged catalytic converter.
Page 256
SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Additional Checks Cuts Out, Misses DEFINITION: A surging or jerking that follows engine speed, usually more pronounced as the engine load increases which is not normally felt above 1500 RPM. The exhaust has a steady spit- ting sound at idle, low speed, or hard acceleration for the fuel starvation that can cause the engine to cut-out.
Page 257
SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Ignition System Checks Note: LPG being a gaseous fuel requires higher secondary ignition system voltages for the equivalent gasoline operating conditions. If a prob- lem is reported on LPG and not gasoline, do not discount the possibility of a LPG only ignition system failure and test the system accordingly. Check for the proper ignition voltage output with J 26792 or the equivalent.
Page 258
SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Fuel System Checks Check for a restricted fuel filter, contaminated fuel, or improper fuel pressure. Refer to LPG Fuel System Diagnosis. Check for the proper ignition output voltage with the spark tester J 26792 or the equivalent. Check for proper installation of the mixer module assembly.
Page 259
SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Additional Check Check the transmission shift pattern. Refer to the OEM Transmission Controls section the Service Manual. Check for dragging brakes. Rough, Unstable, or Incorrect Idle, Stalling DEFINITION: The engine runs unevenly at idle. If severe enough, the engine or vehicle may shake. The engine idle speed may vary in RPM. Either condition may be severe enough to stall the engine.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-13. Symptom Diagnosis Checks Action Fuel System Checks Check for Rich or Lean symptom that causes the condition. Drive the vehicle at the speed of the complaint. Monitoring the oxygen sensors will help identify the problem. Check the fuel pressure while the condition exists.
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SECTION 3 - CHASSIS & TURNTABLE Table 3-14. DTC to SPN/FMI Cross Reference Chart Description SPN Code FMI Code Crank Never Synced at Start Fuel Pump Low Voltage Fuel Pump High Voltage MAP Low Voltage MAP High Pressure IAT Higher Than Expected 1 IAT Low Voltage IAT High Voltage ECT Higher Than Expected 1...
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SECTION 3 - CHASSIS & TURNTABLE Table 3-14. DTC to SPN/FMI Cross Reference Chart Description SPN Code FMI Code System Voltage Low System Voltage High Flash Checksum Invalid RAM Failure COP Failure External 5V Reference Low 1079 External 5V Reference High 1079 Power Relay Open 1485...
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B, C B, C B, C B, C A. Counterweight Casting B. Apply JLG Threadlocker P/N 0100019 to Bolt Threads and to Threads in Counterweight. C. Torque to 285 ft. lbs. (386 Nm). Typical Four Places. Figure 3-131. Counterweight 3121234 3-211...
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SECTION 4 - BOOM & PLATFORM SECTION 4. BOOM & PLATFORM 4.1 PLATFORM 3. Remove hardware securing the platform control valve to the mounting bracket. Remove platform control valve. Platform Valve Removal (Prior to SN 0300141319) 1. Remove hardware securing cover to the platform sup- port.
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SECTION 4 - BOOM & PLATFORM Platform Valve Installation (Prior to SN 3. Install cover onto the platform support and secure with mounting hardware. 0300141319) 1. Install platform control valve onto the mounting bracket and secure using hardware. 4. Remove tag and reconnect the hydraulic lines to the 2.
Page 267
SECTION 4 - BOOM & PLATFORM Platform Valve Removal (SN 0300141319 through 4. Remove hardware securing cover to the platform sup- port. Remove cover. 0300189341) 1. Tag and disconnect the hydraulic lines from the plat- form control valve. Use suitable container to retain any residual hydraulic fluid.
Page 268
SECTION 4 - BOOM & PLATFORM 6. Remove hardware securing the platform control valve to Platform Valve Installation (SN 0300141319 the mounting bracket. Remove platform control valve. through 0300189341) 1. Install platform control valve onto the mounting bracket and secure using hardware. 2.
Page 269
SECTION 4 - BOOM & PLATFORM 3. Install cover onto the platform support and secure with 5. Install high pressure filter onto filter mounting bracket mounting hardware. and secure with mounting hardware. 6. Remove tag and reconnect the hydraulic lines to the platform control valve.
Page 270
SECTION 4 - BOOM & PLATFORM Support Removal 3. Using a suitable device, support the platform support. NOTE: The platform support weighs approximately 135 lbs. CENTRE BOLT (61 kg). BOLTS 4. Remove the bolts and locknuts securing the support to ROTATOR the rotator.
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2. Install the rotator center bolt. 6. Connect the electrical cables to the platform control console. 3. Apply JLG Threadlocker P/N 0100011 to the eight bolts and locknuts securing the support to the rotator and install the bolts and locknuts.
Page 272
C, D Torque to 40 ft. lbs. (55 Nm) JLG Threadlocker P/N 0100011 Torque to 586 ft. lbs. (795 Nm) Check torque every 150 hours of operation Torque to 75 ft. lbs. (102 Nm) Figure 4-2.
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SECTION 4 - BOOM & PLATFORM 4.2 ROTATOR AND SLAVE CYLINDER 6. Tag and disconnect hydraulic lines to the slave cylinder. Use a suitable container to retain any residual hydraulic fluid. Cap hydraulic lines and ports. Remove the slave Removal cylinder.
Page 274
SECTION 4 - BOOM & PLATFORM 4.3 MAIN BOOM POWERTRACK 8. With powertrack supported and using all applicable safety precautions, remove bolts #3, #4 and #5 securing rail to the base boom section. Remove powertrack from Removal boom section. 1. Disconnect wiring harness connectors located in tower Installation upright.
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SECTION 4 - BOOM & PLATFORM HOSES AND CABLES SHOULD NOT BE HOSES AND CABLES SHOULD BE AGAINST PULLED TIGHT AGAINST THE INSIDE THE OUTSIDE RADIUS OF THE POWER RADIUS OF THE POWER TRACK TRACK 0271990 E Figure 4-6. Powertrack Installation Main Boom - Sheet 2 of 2 4-12 3121234...
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SECTION 4 - BOOM & PLATFORM 4.4 POWERTRACK MAINTENANCE 3. Remove the screws from the flat bar on the other side of the powertrack. One Piece Bracket Maintenance 1. Place the powertrack on a workbench. 4. Pull up on the loose side of the round bar to allow the poly roller to slide off.
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SECTION 4 - BOOM & PLATFORM 5. Slide the poly roller off of the round bar. 7. Slide the flat bar out. 8. Remove the snap ring from one side of the bracket. 6. Hold the round bar to remove the other screw. 9.
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SECTION 4 - BOOM & PLATFORM 10. Push down with slight pressure on the link and slide the Two Piece Bracket Maintenance bracket side up and over the extrusion on the link. 1. Loosen the screw. 11. Repeat the previous step on the other side. 2.
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SECTION 4 - BOOM & PLATFORM 4. Hold the flat bar and remove the screws. 6. Remove the screws from the bar. Remove the snap ring and pin. 5. Remove the snap rings and pins. 7. Slide the link out. 4-16 3121234...
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SECTION 4 - BOOM & PLATFORM Snap Rings and Screws A snap ring that is not seated is shown below. WHEN PERFORMING MAINTENANCE ON THE POWERTRACK, MAKE SURE TO DISCARD AND REPLACE ALL OLD SCREWS. Make sure screws are tight and installed properly. A seated and closed snap ring is shown below.
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1. Using suitable lifting equipment, adequately support 1. JLG recommends the use of the JLG Hostile Environment boom assembly weight along entire length. Package if available to keep the internal portions of a boom cleaner and to help prevent dirt and debris from entering the boom.
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SECTION 4 - BOOM & PLATFORM 6. Remove hardware securing timing link to boom assem- Disassembly bly. Remove pin from boom assembly. NOTE: The following procedure assumes the boom is removed from the machine. 1. Extend the boom approximately 2 ft. (0.6 m). This will enable access to the bolts that secure the cable mount block to the boom fly section.
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SECTION 4 - BOOM & PLATFORM 4. Clamp both threaded ends of wire rope to prevent rota- 7. Remove the four bolts, shims, and attachment blocks tion. Remove jam nuts and nuts which secure the wire that secure the telescope cylinder barrel to the boom rope adjustments to the bottom front of the base boom mid section.
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SECTION 4 - BOOM & PLATFORM This page left blank intentionally. 3121234 4-21...
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SECTION 4 - BOOM & PLATFORM 0275554 I 1001155753 H 1. Pivot Pin 6. Upright 2. Timing Link 7. Lift Cylinder Pivot Pin 3. Tower Weldment 8. Tower Pin 4. Tension Link 9. Level Link Pin 5. Boom Pivot Pin Figure 4-9.
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SECTION 4 - BOOM & PLATFORM DETAIL A DETAIL B DETAIL C SEE DETAIL B SEE DETAIL A SEE DETAIL C 0275554 I 1001155753 H 1. Pivot Pin 5. Level Cylinder 2. Tension Link Pivot Pin 6. Level Cylinder Pivot Pin 3.
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SECTION 4 - BOOM & PLATFORM 9. Carefully remove the telescope cylinder and sheave 13. Remove hardware which secures the wear pads to the assembly. Place telescope cylinder on a suitable trestle. front of mid boom section; remove wear pads from the top, sides and bottom of the mid boom section.
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SECTION 4 - BOOM & PLATFORM Inspection 8. Inspect inner diameter of boom pivot bushing for scor- ing, distortion, wear, or other damage. Replace bearing as necessary. NOTE: When inspecting pins and bearings Refer to the guidelines established in Section 2 - General. 9.
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SECTION 4 - BOOM & PLATFORM NOTE: To avoid damaging the proximity switch, install and adjust the switch AFTER assembling the switch block and compression spring, and after torquing the wire ropes. To adjust the proximity switch, thread the switch all the way in and back out 1/8 to 1/2 a turn.
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SECTION 4 - BOOM & PLATFORM 4. Install retract wire ropes into rear end of fly section, 9. Properly position the retraction wire rope sheaves route wire ropes through holes in side of fly boom sec- assemblies at the rear end of the mid boom section; tion and pull into slot.
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SECTION 4 - BOOM & PLATFORM NOTE: The telescope cylinder weighs approximately 496 lbs. 21. Apply JLG Threadlocker P/N 0100011 to the bolts and (225 kg). fasten the telescope cylinder rod to the boom base sec- tion with the bolts, shims, mounting blocks.
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SECTION 4 - BOOM & PLATFORM Installation 5. Using suitable lifting device, align main lift cylinder rod end with mounting holes on boom assembly. 1. Using a suitable lifting device, position boom assembly 6. Extend the main lift cylinder by using the auxiliary on upright so that the pivot holes in both boom and power switch.
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SECTION 4 - BOOM & PLATFORM Telescope Cylinder/Boom Cable Removal 7. Remove the four bolts, shims, and attachment blocks that secure the telescope cylinder barrel to the boom 1. Make sure the machine is on a firm, level surface. mid section. 2.
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SECTION 4 - BOOM & PLATFORM 9. Push the boom fly sections back in to gain access to the 12. Twist the ends of the retraction cables to remove the boom retraction cable. ends of the cables from the slots in the side of the boom fly section.
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5. Pull the boom sections out to approximately where they 10. Apply JLG Threadlocker P/N 0100011 to the bolts and were extended to for telescope cylinder removal. fasten the telescope cylinder barrel to the boom mid section with the bolts, shims, mounting blocks.
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SECTION 4 - BOOM & PLATFORM 12. Using a 3/8 drive extension approximately 4 ft. (1.2 m) 4.7 MAIN LIFT CYLINDER long, install the bolts and washers securing the cable mount block to the boom fly section. Tape the bolts to Removal the socket at the end of the extension to prevent it from coming out of the socket before it engages the mount-...
Page 300
SECTION 4 - BOOM & PLATFORM 5. Remove the hardware securing the rod end pivot pin Installation and remove the pivot pin. 1. Using an adequate lifting device, position the lift cylin- der in the machine in the same manner that it was removed.
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SECTION 4 - BOOM & PLATFORM 5. Connect the hydraulic lines to the cylinder as tagged 6. Inspect sheaves with a groove wearout gauge for exces- during removal. sive wear. 6. Remove the supporting device and function check the boom to make sure the lift cylinder operates properly and there are no leaks.
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SECTION 4 - BOOM & PLATFORM 4.9 BOOM ROPE TORQUING PROCEDURES 4. Torque retract adjusting nuts (platform end) to 15 ft. lbs. (20 Nm) alternating between the two wire ropes and 1. Position boom in fully down and fully retracted position. keeping approximately the same amount of thread beyond the adjusting nut.
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SECTION 4 - BOOM & PLATFORM ROUTE LIMIT SWITCH CABLE THROUGH CLAMPS DETAIL A BOOM TRANSPORT LENGTH SWITCH BOOM ELEVATION SWITCH DETAIL B 1001091187 E Figure 4-20. Elevation, Dual Capacity and Transport Switch Information (SN 0300103969 through 0300189341) - Sheet 2 of 2 4-42 3121234...
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SECTION 4 - BOOM & PLATFORM 4.11 ELECTRONIC PLATFORM LEVELING PRIMARY AND SECONDARY TILT SENSOR INTERACTION Two tilt sensors, mounted on each side of the platform support, Description are used to measure the incline of the platform with respect to gravity and control the automatic platform angle control func- Electronic platform leveling replaces the conventional hydraulic tion.
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SECTION 4 - BOOM & PLATFORM SWITCH #1 HARNESS FROM PLATFORM CONTROL BOX SWITCH #2 TYPICAL SENSOR INSTALLATION, COVER SHOWN IN PHANTOM FOR CALRITY 0273695 D SWITCH #1 SWITCH #2 PIN# DESCRIPTION SWITCH HARNESS PIN# DESCRIPTION SWITCH HARNESS PIN #1 POWER PIN #1 POWER...
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SECTION 4 - BOOM & PLATFORM PLATFORM VALVES In order to provide a better system response, the controls also compute the rate of angular change of the platform position and The platform specific valves are located in a manifold at the plat- set the leveling valve positions to achieve a matching velocity.
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The Electronic Leveling System Fault Lamp shall flash (to indicate that the leveling function has been The JLG Control System takes a snapshot of the two sensor val- lost). ues and records the difference once on each power up. The Con- c.
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Replacing the Level Sensors Earlier generations of this machine had three different genera- tions of level sensors that were used on this machine. JLG P/N 4360503, P/N 4360528, and P/N 4360544. P/N 4360528 and 4360544 supersede P/N 4360503. If one of the 4360503 sensors fail, BOTH sensors must be replaced with two P/N 4360544 sen- sors.
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4. Enter “33271” to get into Access Level 1 mode. 5. Go to the “Personalities” menu and adjust the following personalities. Refer to the Personality Ranges/Defaults table in Section 6 - JLG Control System for proper setting values. Basket Level Up Min...
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SECTION 4 - BOOM & PLATFORM STEP 4: CALIBRATING THE PLATFORM LEVEL UP AND DOWN 21. The preceding steps will provide acceptable crackpoint VALVE CRACKPOINTS settings for the majority of machines. However, if the operator can feel small jolts in the platform from the NOTE: Since the valve position which allows minimum oil flow valve opening during a leveling operation, the crack- (crackpoint) is dependent on the oil pressure, verify the...
Page 314
SECTION 4 - BOOM & PLATFORM 4.12 ROTARY ACTUATOR The shaft is supported radially by the large upper radial bearing and the lower radial bearing. Axially, the shaft is separated from the housing by the upper and lower thrust washers. The end cap Theory of Operation is adjusted for axial clearance and locked in position by set screws or pins.
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SECTION 4 - BOOM & PLATFORM 1. Housing 200. T-Seal 302. Wear Guide 2. Shaft 202. T-Seal 304. Thrust Washer 3. Piston Sleeve 204. O-ring 304.1. Wiper Seal 4. End Cap 205. Cup Seal 400. Counterbalance Valve 109. Lock Pin 207.
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SECTION 4 - BOOM & PLATFORM Tools Required for Assembly/Disassembly Making a Seal Tool The seal tool is merely a customized standard flat head screw- Upon assembly and disassembly of the actuator there are basic driver. tools required. The tools and their intended functions are as fol- lows: TO AVOID INJURY BE CAREFUL WHILE HANDLING THE HOT SCREWDRIVER.
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SECTION 4 - BOOM & PLATFORM Disassembly 4. Remove the lock pins using an ”Easy Out” (a size #2 is shown). If the pin will not come out with the ”Easy Out”, use 5/1 6 in. drill bit to a depth of 1/2 in. (12.7 mm) to drill out the entire pin.
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SECTION 4 - BOOM & PLATFORM 7. Remove the end cap (4) and set aside for later 9. Every actuator has timing marks for proper engage- inspection. ment. 8. Remove the stop tube (400) if equipped with one. The stop tube is an available option to limit the rotation of the actuator.
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SECTION 4 - BOOM & PLATFORM 11. Remove the shaft (2). It may be necessary to strike the 14. At the point when the piston gear teeth come out of threaded end of the shaft with a rubber mallet. engagement with the housing gear teeth, mark the pis- ton and housing with a marker as shown.
Page 321
SECTION 4 - BOOM & PLATFORM 17. To remove the main pressure seals (205), it is easiest to 20. Remove the piston O.D. seal (202) from the piston. cut them using a sharp razor blade being careful not to damage the seal groove. 21.
Page 322
SECTION 4 - BOOM & PLATFORM Inspection 3. Inspect the wear guide condition and measure thick- ness (not less than 0.123 in. or 3.12 mm). SMALL OR MINOR SURFACE SCRATCHES CAN BE CAREFULLY POLISHED. 1. Clean all parts in a solvent tank and dry with com- pressed air prior to inspecting.
Page 323
SECTION 4 - BOOM & PLATFORM 2. Coat the thrust washers (304) with a generous amount 4. Using a seal tool install the main pressure seal (205) onto of Lithium grease. Install the thrust washer (304) onto shaft (2) and end cap (4). Use the seal tool in a circular shaft (2) and end cap (4).
Page 324
SECTION 4 - BOOM & PLATFORM 6. Install the o-ring (204) and backup ring (207) into the Beginning with the inner seal (200) insert one end of inner seal groove on the end cap (4). backup ring in the lower groove and feed the rest in using a circular motion.
Page 325
SECTION 4 - BOOM & PLATFORM 9. Looking from the angle shown, rotate the piston (3) until 11. Install the shaft (2) into the piston (3). Be careful not to the marks put on the piston and the housing (1) during damage the seals.
Page 326
SECTION 4 - BOOM & PLATFORM 13. Install two bolts in the threaded holes in the flange. 15. Coat the threads on the end of the shaft with anti-seize Using a bar, rotate the shaft in a clockwise direction until grease to prevent galling.
Page 327
SECTION 4 - BOOM & PLATFORM 17. Tighten the end cap (4). In most cases the original holes 19. Insert the set screws (113) over the lock pins. Tighten for the lock pins will line up. them to 25 in. lbs. (2.8 Nm). 18.
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Installing Counterbalance Valve 3. The bolts that come with the valve are grade 8 bolts. New bolts should be installed with a new valve. JLG Threadlocker P/N 0100011 should be applied to the Refer to Figure 4-24., Rotator Counterbalance Valve.
Page 329
SECTION 4 - BOOM & PLATFORM Greasing Thrust Washers Testing the Actuator If the equipment is available, the actuator should be tested on a 5. After the actuator is assembled but before it is put into hydraulic test bench. The breakaway pressure — the pressure at service, the thrust washer area must be packed with which the shaft begins to rotate —...
Page 330
SECTION 4 - BOOM & PLATFORM Installation and Bleeding 2. With an operator in the platform, open both bleed nip- ples 1/4 turn. Hydraulically rotate the platform to the After installation of the actuator on the equipment, it is import- end of rotation (either clockwise or counterclockwise), ant that all safety devices such as tie rods or safety cables are and maintain hydraulic pressure.
Page 331
SECTION 4 - BOOM & PLATFORM Troubleshooting Table 4-1. Troubleshooting Solution Problem Cause 1. Shaft rotates slowly or not at all a. Insufficient torque output a. Verify correct operating pressure. Do not exceed OEM’s pressure specifications. Load may be above maximum capacity of the actuator.
Page 332
6. Select Access Level from Main Menu. Calibrating the Load Sensor 7. Enter 33271. NOTE: Refer to Section 6 - JLG Control System. 8. Select Machine Set-Up>Load Cell>1 Warn Only. 9. Select Machine Diagnostics>System Load Cell on the 1. Place the boom in the following position.
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SECTION 4 - BOOM & PLATFORM 4.14 SKYGUARD IF SKYGUARD SYSTEM IS INSTALLED ON MACHINE & “BOTH” IS SELECTED. In Platform Mode: Operation NOTE: Machine will treat Soft Touch/SkyGuard override switch as Skyguard is used to provide enhanced control panel protection. if it is a Soft Touch and SkyGuard switch.
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SECTION 4 - BOOM & PLATFORM Diagnostic & Troubleshooting 2. If machine operation is not available: Help menu or diagnostics menu is to be used to collect If you are experiencing a problem that is not described here, see the fault information. your authorized dealer for service.
Page 337
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS SECTION 5. BASIC HYDRAULICS INFORMATION & SCHEMATICS 5.1 LUBRICATING O-RINGS IN THE HYDRAULIC 2. Holding the fitting over the hydraulic oil container, brush an even film of oil around the entire o-ring in the SYSTEM fitting, making sure the entire o-ring is completely satu- rated.
Page 338
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Dip Method Spray Method This method requires a pump or trigger spray bottle. NOTE: This method works best with Face Seal o-rings, but will work for all o-ring fitting types. 1. Fill the spray bottle with hydraulic oil. The following is needed to correctly oil the o-ring in this man- 2.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 5.2 HYDRAULIC CYLINDERS 5. Mark cylinder head and barrel with a center punch for easy realignment. Using an allen wrench, loosen the cyl- inder head retainer capscrews and remove capscrews Axle Lockout Cylinder from cylinder barrel.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 10** 10** 10** 21*** * Torque to 30-35 ft. lbs. (41-47 Nm) ** Torque to 12-15 ft. lbs. (16-20 Nm) *** Torque to 9 ft. lbs. (12 Nm) ****Torque to 55 ft. lbs. (75 Nm) 1683078 N 1.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 8. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as 1. Clean all parts thoroughly in an approved cleaning sol- possible.
Page 342
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 343
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 2. Use a soft mallet to tap a new wiper seal into the appli- 8. Insert the tapered bushing into piston cable cylinder head gland groove. Install a new wear 9. Assemble the tapered bushing loosely into the piston ring into the applicable cylinder head gland groove.
Page 344
Figure 5-14. Rod Assembly Installation 15. Position the cylinder barrel in a suitable holding fixture. 18. Apply JLG Threadlocker P/N 0100011 to the socket head capscrews and secure the cylinder head gland using the capscrews. Torque capscrews to 55 ft. lbs. (75 Nm).
Page 345
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Main Boom Lift Cylinder 5. Mark cylinder head and barrel with a center punch for easy realignment. Using an allen wrench, loosen the cyl- inder head retainer capscrews and remove capscrews DISASSEMBLY from cylinder barrel.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 24** 20*** * Torque to 30 ft. lbs. (41 Nm) ** Torque to 5 ft. lbs. (7 Nm) ***Torque to 300 ft. lbs. (407 Nm) 1684199 G 1. Rod 6. Head 11. Wiper Seal 16.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 8. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as 1. Clean all parts thoroughly in an approved cleaning sol- possible.
Page 348
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 349
Push the head along the rod to the rod end, as applicable. 5. Carefully slide the piston spacer onto the rod. NOTE: Apply JLG Threadlocker P/N 0100011 on threads of set- PISTON screw before installation.
Page 350
Figure 5-29. Rod Assembly Installation RING SEAL 20. Apply JLG Threadlocker P/N 0100011 to the socket head bolts and secure the cylinder head gland using the cap- screws. Torque capscrews to 300 ft. lbs. (407 Nm). 21. After the cylinder has been reassembled, the rod should be pushed all the way in (fully retracted) prior to the re- installation of any holding valve or valves.
Page 351
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Platform Level Cylinder 5. Mark cylinder head and barrel with a center punch for easy realignment. Using an allen wrench, loosen the cyl- inder head retainer capscrews and remove capscrews DISASSEMBLY from cylinder barrel. BARREL DISASSEMBLY OF THE CYLINDER SHOULD BE PERFORMED ON A CLEAN WORK SURFACE IN A DIRT FREE WORK AREA.
Page 352
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS * Torque to 9 ft. lbs. (12 Nm) ** Torque to 50-55 ft. lbs. (68-75 Nm) ***Torque to 55 ft. lbs. (75 Nm) 1684189 E 1. Capscrew 6. Barrel 11. Guidelock Ring 16.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 8. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as possible. 1. Clean all parts thoroughly in an approved cleaning sol- vent.
Page 354
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 355
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 2. Use a soft mallet to tap a new wiper seal into the appli- NOTE: When installing the tapered bushing, piston and mating end of rod must be free of oil. cable cylinder head gland groove. Install a new wear rings into the applicable cylinder head gland groove.
Page 356
GUIDELOCK RING RING O-RING 19. Apply JLG Threadlocker P/N 0100011 to the socket head bolts and secure the cylinder head gland using the washer ring and capscrews. Torque capscrews to 55 ft. lbs. (75 Nm). 20. After the cylinder has been reassembled, the rod should be pushed all the way in (fully retracted) prior to the re- installation of any holding valve or valves.
Page 357
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Steer Cylinder (Prior to SN 0300142666) 4. Using a hook Spanner, loosen the spanner nut and remove spanner nut from cylinder barrel. DISASSEMBLY CYLINDER BARREL SPANNER NUT DISASSEMBLY OF THE CYLINDER SHOULD BE PERFORMED ON A CLEAN WORK SURFACE IN A DIRT FREE WORK AREA.
Page 358
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 1683740 C 1. Rod 6. Retainer Ring 11. Head 2. Barrel 7. Backup Ring 12. Piston 3. O-Ring 8. O-Ring 13. Locknut 4. Spanner Nut 9. Seal 14. Bushing 5. Wiper Seal 10.
Page 359
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 7. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as possible. 1. Clean all parts thoroughly in an approved cleaning sol- vent.
Page 360
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 361
80/100 psi to push rod guide firmly 7. Install locknut onto the piston rod. against the round retaining ring. (Apply 1 drop of JLG 8. Remove the cylinder rod from the holding fixture. Threadlocker P/N 0100011, 2 places, at 180° apart. Hand tighten nut, then tighten 1/4 turn with spanner wrench).
Page 362
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Steer Cylinder (SN 0300142666 through 4. Using a hook Spanner, loosen the spanner nut and remove spanner nut from cylinder barrel. 0300189340) DISASSEMBLY CYLINDER BARREL SPANNER NUT DISASSEMBLY OF THE CYLINDER SHOULD BE PERFORMED ON A CLEAN WORK SURFACE IN A DIRT FREE WORK AREA.
Page 363
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 10** * Torque to 76-84 ft. lbs. (30-33 Nm) ** Torque to 275-330 ft. lbs. (373 - 407 Nm) 1001097243 C 1. Rod 6. O-Ring 10. Piston 2. Barrel 7. Head 11. Seal 3.
Page 364
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 7. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as possible. 1. Clean all parts thoroughly in an approved cleaning sol- vent.
Page 365
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 366
80/100 psi to push rod guide firmly 6. Carefully thread the piston on the cylinder rod and hand against the round retaining ring. (Apply 1 drop of JLG tight, ensuring that the o-ring and backup rings are not Threadlocker P/N 0100011, 2 places, at 180°...
Page 367
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS STEER CYLINDER SEAL REPAIR INSTRUCTIONS 8. If the cylinder utilizes a teflon piston seal, special care must be taken when installing the new seal. Teflon seals 1. The cylinder should be disassembled in a clean environ- are not as elastic as rubber or urethane seals.
Page 368
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Telescope Cylinder 5. Mark cylinder head and barrel with a center punch for easy realignment. Using an allen wrench, loosen the cyl- inder head retainer capscrews and remove capscrews DISASSEMBLY from cylinder barrel. CYLINDER BARREL DISASSEMBLY OF THE CYLINDER SHOULD BE PERFORMED ON A CLEAN WORK SURFACE IN A DIRT FREE WORK AREA.
Page 369
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 21** * Torque to 9 ft. lbs. (12 Nm) **Torque to 80 ft. lbs. (108.5 Nm) 1684519 D 1. Capscrew 6. Wear Ring 11. O-ring 16. Plug 21. Capscrew 2. Tapered Bushing 7.
Page 370
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 8. Using suitable protection, clamp the cylinder rod in a CLEANING AND INSPECTION vise or similar holding fixture as close to the piston as possible. 1. Clean all parts thoroughly in an approved cleaning sol- vent.
Page 371
NOTE: Prior to cylinder assembly, ensure that the proper cylinder seal kit is used. See the respective JLG Parts Manual. NOTE: Apply a light film of hydraulic oil to all components prior to assembly.
Page 372
Push the head along the rod to the rod end, as applicable. 5. Carefully slide the piston spacer on the rod. PISTON NOTE: Apply JLG Threadlocker P/N 0100011 on threads of set- screw before installation. CAPSCREW 6. Install setscrew onto the spacer.
Page 373
Figure 5-78. Rod Assembly Installation Figure 5-77. Piston Seal Kit Installation 20. Apply JLG Threadlocker P/N 0100011 to the socket head 17. Position the cylinder barrel in a suitable holding fixture. capscrews and secure the cylinder head gland using the washer ring and capscrews.
Page 374
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 1001151209 A 0274644 K 1. Main Control Valve 3. Auxiliary Pump 5. Dual Select Valve 7. High Pressure Filter 2. Flow Divider (4WD) 4. Platform Valve 6. Hydraulic Filter 8. Flow Divider (2WD) Figure 5-79.
Page 375
Cold temperatures have a significant impact on pressure read- bolts mounting it to the pump. The stand by adjustment ings. JLG Industries Inc. recommends operating the machine is at the top. To adjust this, a 4 mm and 6 mm allen until the hydraulic system has warmed to normal operating wrench will be needed.
Page 376
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS HIGH PRESSURE RELIEF b. Next, using the 6 mm wrench adjust the main adjustment clockwise to increase or counterclock- 1. Install a high pressure gauge at the “M1” port of the wise to decrease. This adjustment will be reset at the main valve block.
Page 377
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS STEER PLATFORM LEVEL DOWN 1. Install a high pressure gauge at port M4. Activate steer 1. Install a high pressure gauge at gauge port “M2”, Acti- left or right. The gauge should read 2500 psi (172.3 bar). vate level down to the end of stroke, you should read 1800 psi (124 Bar).
Page 378
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 4641432 D 1. Check Valve 9. Load Sense - Steer 2. Pilot Valve - Lift 10. Load Sense - Swing 3. Check Valve (100 psi - 6.9 Bar) 11. Check Valve (60 psi - 4.1 Bar) 4.
Page 379
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 4641251 B 1001118473 B 1. Level Down Relief 6. Platform Level Solenoid 2. Level Up Relief 7. Flow Regulator 3. Flow Regulator 8. Flow Regulator 4. Rotator Solenoid 9. Filter 5. Pressure Solenoid 10.
Page 380
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 7, C 9, B 4, A 4641432 D Table 5-1. Cartridge Torque Values Table 5-2. Coil Torque Values Ft-Lbs. Ft-Lbs. 18-20 24-27 33-37 45-50 19-21 26-28 50-55 68-75 19-21 26-28 50-55 68-75 24-26 33-35 70-80...
Page 382
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 5.4 START UP PROCEDURES 3. Remove the 3/4 in. hose from port “P1”, using a #12 male union add approx. 30 in. of 3/4 in. hose to it. Remove the return filter cap at the top of the tank, lift out the ele- Start Up After Overhaul or Replacement of ment making sure the canister stays in the tank.
Page 383
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 5.5 PISTON PUMP (PRIOR TO SN 0300180778) Table 5-5. Symbols Used Symbol Meaning Symbol Meaning Non-reusable part, use a new Inspect for wear or damage part Option - either part may exist Note correct orientation Internal hex head Torque specification...
Page 384
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Initial Start-up Procedures Fluid and Filter Maintenance To ensure optimum life of products, perform regular mainte- Follow this procedure when starting-up a new pump or when the pump has been removed. nance of the fluid and filter. Contaminated fluid is the main cause of unit failure.
Page 385
SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Troubleshooting Table 5-8. Excessive Noise and/ or Vibration Item Description Action Check fluid level in reservoir. Insufficient hydraulic fluid will cause cavitation. Fill the reservoir to proper level. Check for air in system. Air in system will cause noisy, erratic control.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Table 5-10. System Operating Hot Item Description Action Check fluid level in reservoir. Insufficient volume of hydraulic fluid will not meet cooling Fill reservoir to proper level. Verify proper size of reservoir. demands of system.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Table 5-12. Pressure or Flow Instability Item Description Action Check for air in system. Air in system will cause erratic operation. Activate Pressure Compensator, allowing system to bleed air. Check inlet line for leaks and eliminate source of air ingression.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Table 5-14. High Inlet Vacuum Item Description Action HIGH INLET VACUUM CAUSES CAVITATION WHICH CAN DAMAGE INTERNAL PUMP COMPONENTS. Check fluid temperature. Low temperature increases viscosity. High fluid viscosity Allow system to warm up before operation. causes high inlet vacuum.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Set Up the Function Pump e. Then using the 6 mm wrench adjust the main adjustment clockwise to increase or counterclock- wise to decrease. The pressure should read between (The pump that is mounted on the back of the drive pump). 400-440 psi (27.58-30.34 bar).
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Shaft Seal Replacement Control Assembly K010 C118 K020 C138 C117 C116 C136 C117 C135 C114 C134 C115 C133 C113 C102 (2pl.) Figure 5-87. Shaft Seal and Retaining Ring 7-11 N•m [6-8 lbf•ft] A lip type shaft seal is used in the pump and can be replaced without major disassembly of the unit.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS DISASSEMBLY REASSEMBLY 1. Remove the four screws (C300) holding the control hou- 1. Install the Pressure Compensator spool, spherical end sing onto the end cap. first, into the Pressure Compensator bore. The Pressure Compensator spool is the shorter of the two.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Plug and Fitting Sizes and Torques composite. Your configuration may differ but the appropriate wrench size and torque can be found here. If any plugs or fittings are removed from the unit during ser- vice, install and torque as indicated here.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 5.6 PISTON PUMP (SN 0300180778 THROUGH Endcover Inspection 0300189341) • Check the bearing (press fit) in endcover. If needles remain in cage, move freely, and setting is at the dimension shown in Figure 5-90., removal not required. Servo Controlled Piston Pump •...
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Swashplate Inspection Bushing Inspection • Inspect bushing for contamination embedment within • The finish on the piston shoe surfaces of the swash plate coating of bushing surface coming in contact with swash- should show no signs of scoring.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS 6. To assemble cradle sub-assembly, install bushing onto 18. Install key and inner ring gerotor onto shaft or coupler cradle retaining with button head capscrews. Torque assembly. Lubricate inner ring gerotor. button head capscrew 14 to 16 in. lbs. (1.6 to 1.8 Nm). NOTE: Refer to “Charge Pump Adapter Assembly”...
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Charge Pump Adapter Assembly DISASSEMBLY 1. Remove plug, shims, spring, and poppet from adapter assembly as shown in Figure 5-94. Inspection • Inspect the charge pump relief valve seat inside the charge Gerotor Ring Pocket pump adapter.
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3. Remove E-ring from pin retaining feedback link and control housing and bell crank. valve spool. Remove pin, feedback link, valve spool, and 5. JLG Threadlocker P/N 0100011 or equivalent to set bell crank from control housing. screw and install, retaining input shaft. Adjust set screw 4.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Manual Servo Control Assembly Options ASSEMBLY - DESTROKE VALVE ASSEMBLY OPTION 1. Install new o-rings and backup washers onto destroke DISASSEMBLY - DESTROKE VALVE ASSEMBLY valve. OPTION 2. Install destroke valve into manifold by hand until top o-ring is met by manifold.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS DISASSEMBLY - NEUTRAL LOCKOUT SWITCH DISASSEMBLY - NEUTRAL DETENT OPTION ASSEMBLY OPTION 1. Loosen seal nut and remove ball plunger from control housing. 1. Loosen set screw in adapter and remove neutral lockout switch from adapter.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Rotating Kit Assembly The following parts are required to disassemble the cylinder barrel: DISASSEMBLY 2 ea. 3/8 in. I.D. x 1-1/8 in. O.D. flat washers Disassembly of rotating assembly is required for inspection 1 ea.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Fault-logic Troubleshooting RECOMMENDED GAUGE LOCATIONS Gauges Recommended Match the transmission symptoms with the problem state- Inlet vacuum gauge: 30 PSI to 14.8 PSI (2 bar to 1 bar) ments and follow the action steps shown in the box diagrams. This will give expedient aid in correcting minor problems elim- System pressure gauge: 10,000 PSI (700 bar) inating unnecessary machine down time.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS DIAGRAM ACTION STEP COMMENTS 10. Check System Pressure: a. See Figure 5-99. for location of pressure gauge 1. Inspect External Control Linkage for: installation a. Misadjusted or disconnected b. Consult owner/operators manual for maximum sys- b.
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SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS Start-up Procedure 6. After the system starts to show signs of fill, slowly move pump swashplate to a slight cam angle. Continue to operate system slowly with no load on motors until sys- When initially starting a new or a rebuilt transmission system.
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ON ANY ANALYZER MENUS THAT REQUIRE MACHINE MODEL SELECTION, USE sticks, with steering being controlled by a rocker switch built THE 800S SELECTION TO SET UP FOR THE 680S MACHINE. THE SOFTWARE into the top the drive joystick. To activate Drive, Lift, and Swing DOES NOT INCLUDE A 680S SELECTION.
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SECTION 6 - JLG CONTROL SYSTEM To Connect the JLG Control System Analyzer Using the Analyzer The analyzer will display the current top level menu item, for 1. Connect one end of the cable, supplied with the ana- example: lyzer, to the correct four pin connector on the motor control unit;...
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SECTION 6 - JLG CONTROL SYSTEM Changing the Access Level of the Hand Held Analyzer Press ENTER to select the ACCESS LEVEL item; then When the analyzer is first connected, its access level ensures press UP & DOWN arrows and LEFT &...
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SECTION 6 - JLG CONTROL SYSTEM Adjusting Configuration Using the Hand Held Machine Setup Analyzer When a machine digit item is selected, press UP & When a personality item is selected, press UP & DOWN DOWN to adjust its value, for example:...
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SECTION 6 - JLG CONTROL SYSTEM Level Vehicle Description Table 6-1. Analyzer Abbreviations ABBREVIATION MEANING ACCEL ACCELERATE A NEW TILT MODULE WILL ACT AS IF IT IS TILTED ALL OF THE TIME UNTIL THE ACTIVE FOLLOWING PROCEDURE IS PERFORMED. ANALOG DIGITAL CONVERTER COUNT AMB.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-1. Analyzer Abbreviations Table 6-1. Analyzer Abbreviations ABBREVIATION MEANING ABBREVIATION MEANING GROUND SHORT CIRCUIT GREEN SELECTOR GROUND MODULE SERIAL NUMBER HOURS SPEED HARDWARE STOW STOWED HWFS HARDWARE FAILSAFE STOWD STOWED IN or CURRENT...
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SECTION 6 - JLG CONTROL SYSTEM Figure 6-2. ADE Block Diagram 3121234...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-2. Machine Configuration Programming Information Configuration Digit Number Description Default Number MODEL NUMBER: 400S 450A 510A 600S 600A 600SC 601S 740A 800A 800S MARKET: ANSI USA ANSI EXPORT AUSTRALIA JAPAN ENGINE: FORD EFI GAS: Ford LRG425 EFI Gas (Tier 1)
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SECTION 6 - JLG CONTROL SYSTEM Table 6-2. Machine Configuration Programming Information Configuration Digit Number Description Default Number GLOW PLUG: NO GLOW PLUGS: No glow plugs installed. W/O STARTER LOCK: Automatic pre-glow time determined by ambient air temperature; engine start can be attempted at any time during pre-glow.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-2. Machine Configuration Programming Information Configuration Digit Number Description Default Number GEN SET CUTOUT: MOTION ENABLED: Motion enabled when generator is ON. * Only visible if Gen Set / Welder MOTION CUTOUT: Motion cutout in platform mode only.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-2. Machine Configuration Programming Information Configuration Digit Number Description Default Number TEMPERATURE: CELSIUS: Celsius unit selection. FAHRENHEIT: Fahrenheit unit selection. LEVELING MODE: ALL FUNCTIONS: Platform level with all functions. LEVEL LIFT/TELESCOPE: Platform level on lift and telescope only.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number NOTE: The machine configuration must be completed before any personality settings can be changed. Changing the personality settings first and then changing the model number of the machine configuration will cause the personality settings to return to default values.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number ENGINE: FORD EFI GAS: Ford LRG425 EFI Gas (Tier 1) * Engine selections vary FORD EFI D/F: Ford LRG425 EFI dual fuel (Tier 1) depending on model selec- tion.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number GLOW PLUG: NO GLOW PLUGS: No glow plugs installed. AIR INTAKE: Glow plugs installed in the air intake on the manifold.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number TILT: 5 DEGREES: Reduces the maximum speed of all boom functions to creep when tilted more than 5 degrees and above elevation; also reduces drive speed to creep.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number ST TOUCH / SKYGUARD: NONE: No soft touch or skyguard system installed. SOFT TOUCH - Soft touch only installed.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number LOAD SYSTEM: NO: No load sensor installed. * Only visible under certain WARN ONLY: Functions in creep, overload lamp lit, platform alarm beeps (5 sec ON, 2 sec OFF).
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number DISPLAY UNITS: IMPERIAL: DEG F, PSI, LBS. * Certain market selections METRIC: DEG C, KPA, KGS will alter default setting.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-3. Machine Configuration Programming Information (Software Version P5.X) Default Configuration Digit Number Description Number CRIBBING OPTION: NO: Cribbing Option is disabled. YES: Cribbing Option is enabled. FUEL TANK SIZE: 31 Gallon Tank 52 Gallon Tank ALARM / HORN: SEPERATE: Separate alarm and horn.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-4. Machine Configuration Programming Settings Table 6-4. Machine Configuration Programming Settings 680S 680S Model Number Load System Market Engine Flywheel Teeth Glow Plugs Load Sensor Starter Lockout Function Cut- Fuel Cutout Ground Alarm...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-4. Machine Configuration Programming Settings 680S Cribbing Option Fuel Tank Size Alarm / Horn Alert Beacon Temp Cutout Plat Lvl Ovr Cut Water In Fuel Sensor Dual Capacity BOLD TEXT indicates the default setting. Plain text indicates another available selec- tion.RED ITALIC TEXT...
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SECTION 6 - JLG CONTROL SYSTEM 6.2 MACHINE PERSONALITY SETTINGS AND NOTE: Personality settings can be adjusted within the adjustment range in order to achieve optimum machine performance. FUNCTION SPEEDS Table 6-5. Machine Personality Settings and Function Speeds FUNCTION PERSONALITY...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-5. Machine Personality Settings and Function Speeds FUNCTION PERSONALITY RANGE SAUER DANFOSS EATON MAIN TELESCOPE ACCELeration 0.1 to 5.0s DECELeration 0.1 to 3.0s MINimum IN speed 0 to 65% MAXimum IN speed 0 to 100%...
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SECTION 6 - JLG CONTROL SYSTEM 6.3 MACHINE ORIENTATION WHEN DOING SPEED Test Notes TESTS 1. Stop watch should be started with the function, not with the controller or switch. Lift: Telescope Retracted. Lift Up, and Record Time. Lift Down and Record Time.
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SECTION 6 - JLG CONTROL SYSTEM 6.4 CANBUS COMMUNICATIONS Interlocks: Any device that sends an electrical input. (For an example a limit switch, proximity switch, etc). CANbus: CAN (Control Area Network) is a two wire differential Platform Level: The GROUND MODULE stores the default val- serial link between the Platform Module, Ground Module, ues and handles interlocks.
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SECTION 6 - JLG CONTROL SYSTEM 6-26 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 3121234 6-27...
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SECTION 6 - JLG CONTROL SYSTEM 6-28 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 3121234 6-29...
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SECTION 6 - JLG CONTROL SYSTEM 6-30 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 3121234 6-31...
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SECTION 6 - JLG CONTROL SYSTEM 6-32 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 3121234 6-33...
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SECTION 6 - JLG CONTROL SYSTEM MENU : HELP : (001 ) HELP : PRESS ENTER EVERYTHING OK LOG :( xxx) x:xxxxxxxxxxx DIAGNOSTICS : MENU : DIAGNOSTICS : DIAGNOSTICS : BOOM FUNCTIONS DIAGNOSTICS DRIVE/STEER ENGINE JOYSTICK LIFT : JOYSTICK DRIVE :...
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SECTION 6 - JLG CONTROL SYSTEM FROM DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : ENGINE SYSTEM BOOM FUNCTIONS LOAD START SEQUENCE CHASSIS TILT GROUND MODULE : NOT ACTIVE BATTERY : XX.XV ANGLE : XX.X UMS TO TURNTABLE...
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SECTION 6 - JLG CONTROL SYSTEM FROM DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : DIAGNOSTICS : LOAD CAN STATISTICS CALIBRATION DATA DATALOG VERSIONS CAPACITY LENGTH CAN STATISTICS CALIBRATION DATA DATALOG : GROUND MODULE SWITCH : CLOSED RX /SEC : X...
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SECTION 6 - JLG CONTROL SYSTEM FROM MENU : DIAGNOSTICS MENU : SYSTEM TEST : SYSTEM TEST ACTIVATE ? MENU : ACCESS LEVEL ACCESS LEVEL CODE XXXXXX MENU : PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES...
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SECTION 6 - JLG CONTROL SYSTEM FROM PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES : PERSONALITIES : MAIN LIFT SWING TOWER LIFT MAIN TELESCOPE TOWER TELESCOPE RIGHT TRACK MAIN LIFT : SWING : TOWER LIFT : MAIN TELESCOPE : TOWER TELESCOPE : ACCEL X .XS...
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SECTION 6 - JLG CONTROL SYSTEM FROM MENU : PERSONALITIES MENU : MODEL NUMBER : MARKET : ENGINE : FLYWHEEL TEETH : MACHINE SETUP 400S ANSI USA PERKINS ECM 133 TEETH ENGINE : FLYWHEEL TEETH : MODEL NUMBER : MARKET :...
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SECTION 6 - JLG CONTROL SYSTEM DRIVE CONTROL : DRIVE PUMP : BOOM CONTROL : FUNCTION SPEED FROM ENHANCED SAUER DANFOSS NORMAL KNOB: YES LEVELING MODE: ALL FUNCTIONS DRIVE CONTROL : DRIVE PUMP : BOOM CONTROL : FUNCTION SPEED NORMAL...
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SECTION 6 - JLG CONTROL SYSTEM FROM MENU : MACHINE SETUP MENU : CALIBRATIONS : CALIBRATIONS : CALIBRATIONS : CALIBRATIONS : CALIBRATIONS TILT SENSOR UMS SENSOR FORD ENGINE LOAD SENSOR FORD ENGINE : TILT SENSOR: UMS SENSOR : LOAD SENSOR :...
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SECTION 6 - JLG CONTROL SYSTEM FAULT CODE LIGHT PLATFORM CONTROL MODULE GROUND CONTROL MODULE Figure 6-20. Fault Code Light and Module Location 3121234 6-43...
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SECTION 6 - JLG CONTROL SYSTEM PLATFORM CONNECTION GROUND CONTROL CONNECTION Figure 6-21. Analyzer Connecting Points 6-44 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 1001103667 Y Figure 6-22. Ground Control Module - Sheet 1 of 3 3121234 6-45...
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SECTION 6 - JLG CONTROL SYSTEM 1001103667 Y Figure 6-23. Ground Control Module - Sheet 2 of 3 6-46 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 1001103667 Y Figure 6-24. Ground Control Module - Sheet 3 of 3 3121234 6-47...
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SECTION 6 - JLG CONTROL SYSTEM 1001141138 D Figure 6-25. Platform Control Module - Sheet 1 of 2 6-48 3121234...
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SECTION 6 - JLG CONTROL SYSTEM 1001141138 D Figure 6-26. Platform Control Module - Sheet 2 of 2 3121234 6-49...
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SECTION 6 - JLG CONTROL SYSTEM Analyzer Diagnostics Menu Structure The LEFT /RIGHT arrow keys move between In the following structure descriptions, an intended item is items in the same level. The UP / DOWN selected by pressing ENTER ; pressing ESC arrow keys alter a value if allowed.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-7. Adjustments - Personality Descriptions MAX OUT Displays/adjusts maximum telescope out speed BASKET LEVEL ACCEL Displays/adjusts basket level acceleration DECEL Displays/adjusts basket level deceleration MIN UP Displays/adjusts minimum basket level up speed MAX UP...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-8. Diagnostic Menu Descriptions DRIVE DRIVE FOR … Displays drive joystick direction & demand STEER … Displays steer switch direction & demand NOTE: steer demand is inversely proportional to vehicle speed BRAKES …...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-8. Diagnostic Menu Descriptions ANGLE … Displays angle switch status LOAD … Displays load sensor value NOTE: Not displayed if load = 0. DATALOG ON … Displays total controller on (EMS) time ENGINE …...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check EVERYTHING OK No response required for this DTC. GROUND MODE OK No response required for this DTC. 0010 RUNNING AT CUTBACK - OUT OF TRANSPORT POSITION Response described in Drive Modes section.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 2220 L/S JOY. CENTER TAP BAD Resistive joysticks. - There is a +/- 1V range. around these values due to resistor tolerances.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 2516 DRIVE PREVENTED - ABOVE ELEVATION The UGM shall prohibit Drive and Steer. 2517 DRIVE PREVENTED - TILTED & ABOVE ELEVATION The UGM shall prohibit Drive and Steer.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 3359 MAIN DUMP VALVE - OPEN CIRCUIT Check Harness for damage. 3360 MAIN DUMP VALVE - SHORT TO BATTERY Check Harness for damage.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 33110 TOWER LIFT DOWN VALVE - OPEN CIRCUIT Check Harness for damage. 33111 TOWER LIFT DOWN VALVE - SHORT TO BATTERY Check Harness for damage.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 33295 SWING LEFT VALVE - OPEN CIRCUIT Check Harness for damage. 33306 SWING LEFT VALVE - SHORT TO BATTERY Check Harness for damage.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check PLATFORM LEVEL UP VALVE - SHORT TO GROUND Check Harness for damage. PLATFORM LEVEL UP VALVE - SHORT TO BATTERY OR OPEN Check Harness for damage.
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check <<< PLATFORM LOAD SENSE >>> LSS HAS NOT BEEN CALIBRATED UGM to set Platform Load State = Overloaded RUNNING AT CREEP - PLATFORM OVERLOADED DRIVE &...
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SECTION 6 - JLG CONTROL SYSTEM Table 6-9. Diagnostic Trouble Code Chart (DTC) Flash Code Fault Message Check 9924 FUNCTIONS LOCKED OUT - MACHINE NOT CONFIGURED Display ??? or NO MODEL at Analyzer MACHINE SETUP menu MACHINE SETUP- >MODEL NUMBER...
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SECTION 6 - JLG CONTROL SYSTEM NOTES: 6-64 3121234...
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS SECTION 7. BASIC ELECTRICAL INFORMATION & SCHEMATICS GENERAL Polarity Getting a negative Voltage or current reading when expecting This section contains basic electrical information and sche- a positive reading frequently means the leads are reversed. matics to be used for locating and correcting most of the oper- Check what reading is expected, the location of the signal and ating problems which may develop.
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS Resistance Measurement Continuity Measurement Figure 7-3. Continuity Measurement • Some meters require a separate button press to enable audible continuity testing. Figure 7-2. Resistance Measurement • Circuit power must be turned OFF before testing conti- nuity.
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TO ELECTRICAL CONNECTIONS NOTE: This section is not applicable for battery terminals. JLG P/N 0100048 DIELECTRIC GREASE (NOVAGARD G661) IS THE ONLY MATE- RIAL APPROVED FOR USE AS A DIELECTRIC GREASE. NOTE: Do NOT apply dielectric grease to the following connec- tions: •...
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3. Leave a thin layer of dielectric grease on the face of the unused wire seals. After assembly, install a seal plug (JLG connector. #4460905) in that location to prevent moisture ingress.
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS DIN Connectors This connector is typically used on hydraulic valves. Follow the installation instructions. Exclusions Figure 7-6. Use of Seal Plugs A limited number of connectors do not benefit from dielectric AMP Mate-N-Lok grease, or may be permanently damaged by application.
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EMR4 engine control module from Deutz employs this con- the dielectric grease (replacement of female contacts nector system (for example). required). The JLG Load Sensing System and Rotary Angle Sen- sors are examples of components with the M12 connector sys- tem.
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS MIL-C-5015 SPEC CONNECTOR’S MOLEX CMC SERIES CONNECTORS Crown Connector Inc’s recommendation is to not use dielec- The CMC connector family is a sealed, high-density connec- tric grease for this series connector. For similar model series tion system using matte-seal technology for CP 0.635 and 1.50 connectors, the manufacturer should be contacted for confir- mm terminals.
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS 7.4 AMP CONNECTOR Assembly Check to be sure the wedge lock is in the open, or as-shipped, Applying Silicone Dielectric Compound to AMP position (See Figure 7-9.). Proceed as follows: Connectors Silicone Dielectric Compound must be used on the AMP con- nections for the following reasons: •...
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS Figure 7-11. Connector Assembly Figure 2 3. After all required contacts have been inserted, the 4. Slide the wedge lock into the housing until it is flush wedge lock must be closed to its locked position. with the housing (See Figure 7-13.).
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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS Figure 7-14. Connector Disassembly Disassembly Service - Voltage Reading 5. Insert a 4.8 mm (3/16 in.) wide screwdriver blade between the mating seal and one of the red wedge lock DO NOT PIERCE WIRE INSULATION TO TAKE VOLTAGE READINGS. tabs.
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