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Arrow Master 1350 Service Manual

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ARROW - MASTER
MOBILE HYDRAULIC HAMMER
MODEL 1350
Service Manual
Publication No. 5000054
(Revised 09/12)
SERIAL NUMBER:
SOLD AND
SERVICED BY:
ARROW-MASTER, INCORPORATED
1201 Seventh Street ! East Moline, IL 61244
www.arrowmaster.com

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  • Page 1 ARROW - MASTER MOBILE HYDRAULIC HAMMER MODEL 1350 Service Manual Publication No. 5000054 (Revised 09/12) SERIAL NUMBER: SOLD AND SERVICED BY: ARROW-MASTER, INCORPORATED 1201 Seventh Street ! East Moline, IL 61244 www.arrowmaster.com...

  • Page 2: Table Of Contents

    Page i-1 Table Of Contents Bolt and Cap Screw Torque Specification ........... i-3 Wheel Lug Nut Torque Specification .
  • Page 3 Page i-2 Hydraulic System ..........10-1 PUMPS AND GEARMOTORS .
  • Page 4 Page i-3 Table III - Bolt and Cap Screw Torque Specifications Hex Head Bolts & Hex Head Cap Screws Socket Head Cap Screws MATERIAL SAE Grade 2 Grade 5* Grade 8* Grade 8 SPEC ASTM A307 ASTM A449 ASTM A354 (No Mark MARKING * Manufacturer’s marks may vary...

  • Page 5: Adjustments

    Adjustments - Page 7-1 Adjustments CABLE LENGTH In order to account for differences in the length of certain tools it may be necessary to make adjustments to the length of the cable.* Refer to Figure 7-1 and use the following procedure when adjusting the cable: Move the auto-manual control valve handle forward to the manual/start position and set the parking brake.
  • Page 6 Page 7-2 - Adjustments Figure 7-1 CABLE THREADING 5000054 8/96...
  • Page 7 Adjustments - Page 7-3 REPLACING THE CABLE - Cable Spool cont'd. Lock the hammer weight (See Figure 5-3) and lay the lead back into the stowed transport position. Shut the engine off and set the parking brake. NOTE: If the cable has broken during operation, it will not be possible to raise and lock the hammer weight. DO NOT attempt to lay the lead back with the hammer weight on the ground.
  • Page 8 Page 7-4 - Adjustments Figure 7-2 CARRIAGE & CENTER PIN ADJUSTMENTS 5000054 05/07 5000054 05/07...

  • Page 9: Cross-Slide Bearing Adjustment

    Adjustments - Page 7-5 CROSS-SLIDE BEARING ADJUSTMENT The carriage assembly is equipped with plastic slider bearings which operate in contact with the surfaces of the sideshift ways. It will occasionally be necessary to adjust these bearings for wear. (Refer to Figure 7-2) Using the layback control valve, raise the lead into a vertical position.

  • Page 10: Sideshift Chain

    Page 7-6 - Adjustments SIDESHIFT CHAIN To adjust the tension on the sideshift drive chain, refer to Figure 7-3 and the following procedures: Using the layback control valve, raise the lead into an upright position. Using the sideshift control valve, move the carriage until it is approximately 3 inches (8 cm) away from the right hand travel limit.

  • Page 11: Proximity Sensor

    Adjustments - Page 7-7 PROXIMITY SENSOR - electronic stroke control option The proximity sensor is located on the right hand side of the sheave housing at the top of the lead. To adjust the proximity sensor, refer to Figure 7-4 and use the following procedure: Lay the lead down onto the lead rest.

  • Page 12: Hydraulic Pressure Adjustment

    Page 8-1 Hydraulic Pressure Adjustment The following procedures and sequences should be followed accurately when setting pressures. Failure to do so will result in poor and short service life of hydraulic components. Always use an accurate pressure gauge for setting hydraulic pressures - never guess. Increasing pressures above those recommended will not increase the productivity of the machine but will cause unnecessary strain on machine components.

  • Page 13: Control Circuit Main Relief

    Page 8-2 - Hydraulic Pressure Adjustment Figure 8-1 Hydraulic Lift Circuit CONTROL CIRCUIT MAIN RELIEF Remove the pipe plug from the tee fitting at the creeper control valve. Install a 3000 psi gauge in the tee. (reference point "A" in Figure 8-2). 2.
  • Page 14 Hydraulic Pressure Adjustment - Page 8-3 Figure 8-2 Hydraulic Control Circuit Adjust the engine speed hand-control lever to provide maximum fast-idle rpm. 5. Actuate both valve-control levers forward (sideshift and tilt) at the same time. With both valves actuated forward, the gauge attached at point "A" (Figure 8-2) should read 1500 psi. 7.

  • Page 15: Sideshift Control-Valve Relief

    Page 8-4 - Hydraulic Pressure Adjustment Control Circuit Main Relief cont'd. To adjust the relief pressure, remove the acorn nut and loosen the lock nut. Turn the slotted screw clockwise to increase pressure. 1/4 turn of the screw will change the pressure approximately 50 psi. Failure to push forward on sideshift and tilt-control levers at the same time when checking the pressure will cause an incorrect setting of the relief pressure (most likely too high), providing no protection for the pump, pump drive, and creeper-control circuit.

  • Page 16: Pilot-Circuit Relief (Electronic Stroke Control)

    Hydraulic Pressure Adjustment - Page 8-5 PILOT-CIRCUIT RELIEF (electronic stroke control) 1. Check and set the main relief (at the pump) prior to adjusting the pilot-circuit (auto-manual) relief. Refer to the section titled "CONTROL CIRCUIT MAIN RELIEF". 2. Remove the plug and install a 3000 psi gauge in the tee fitting at the creeper control valve (refer to point "A"...

  • Page 17: Valve Spool Centering Adjustment

    Page 8-6 - Hydraulic Pressure Adjustment Pilot-Circuit Relief (mechanical stroke control) cont'd. 9. Set the relief valve on the auto-manual control valve by using the same procedure outlined for the other relief valves. The correct pressure is 550 - 600 psi at point ‘A’; 350 - 400 psi at point B. (Refer to Figure 8-2.) 10.
  • Page 18 Hydraulic Pressure Adjustment - Page 8-7 Figure 8-3 Hydraulic Control Circuit (S/N 7050-) 5000054 05/09...
  • Page 19 Page 8-8 - Hydraulic Pressure Adjustment CONTROL CIRCUIT MAIN RELIEF (S/N 7050-) Arrow Hammers above serial number 7049 have a slightly different control valve configuration than the earlier machines. They are distinctive in that there are no control valves to the left of the steering wheel and one three spool valve and the auto-manual valve to the right.
  • Page 20 Hydraulic Pressure Adjustment - Page 8-9 SIDESHIFT CONTROL-VALVE RELIEF (S/N 7050-) 1. Check and set the main relief (at the pump) prior to adjusting the sideshift valve relief. Refer to the previous section - "CONTROL CIRCUIT MAIN RELIEF". The sideshift relief valve is located in the body of the three-spool control valve, beside the left control spool (see Figure 8-3).
  • Page 21 Page 8-10 - Hydraulic Pressure Adjustment CREEPER CONTROL VALVE RELIEF (S/N 7050-) 1. Check and set the main relief (at the pump) prior to adjusting the sideshift valve relief. Refer to the previous section - "CONTROL CIRCUIT MAIN RELIEF" Remove the top 80" creeper motor hose from the tee at point “C” and cap it to prevent leakage. Attach a 2000psi gauge to the vacant top port on the creeper valve.

  • Page 22: Mechanical System

    17. Refer to page 54 in the 1350 Parts Manual. Loosen the set screw on the pump yoke, item 23, and slide the pump coupling to the rear as far as possible. Remove the bolts from the pump adapter, item 20, and slide to the rear.

  • Page 23: Transmission, Clutch, Axles, Brakes, And Steering Valve

    Shut the unit down and apply the parking brake. Remove the cover from the transmission and creeper housing. NOTE: Older 1350 models may require the removal of the parking brake hand lever and bracket assembly from the transmission and creeper housing cover.
  • Page 24 Mechanical System - Page 9-3 Adjustment of Gear Backlash cont'd. Figure 9-1 CREEPER DRIVE GEAR BACKLASH ADJUSTMENT 5000054 01/09...

  • Page 25: Creeper-Drive Motor And Pinion Replacement

    Page 9-4 - Mechanical System Page 9-4 - Mechanical System Creeper-Drive Motor and Pinion Replacement The creeper-drive motor and pinion can be removed and replaced without disturbing other components of the creeper-drive mechanism. (Refer to Figure 9-2). Remove the front creeper-drive shift lever (if used) and creeper cover housing. If a top mounted creeper shift lever is used, remove the cotter and clevis pin.

  • Page 26: Creeper-Drive Pinion Shaft Replacement

    Mechanical System - Page 9-5 Creeper-Drive Pinion Shaft Replacement - Refer to Figure 9-2 Remove the creeper-drive shift lever and housing cover. Disconnect the ball joint at the top of the accelerator pedal. Remove the seat and base. Remove the main floor plate. Remove the creeper-drive motor according to the procedure given in "Creeper-Drive Motor and Pinion Replacement".

  • Page 27: Creeper-Drive Bull Gear Replacement

    Page 9-6 - Mechanical System Figure 9-3 Creeper-Drive Bull Gear Replacement 17. Reinstall the front cover assembly. Torque the cap screws according to Table i-1 - "Bolt and Cap Screw Torque Specifications". 18. Reconnect the drive shaft to the drive yoke. Torque the cap screws to 22-27 lb-ft. 19.

  • Page 28: Creeper-Drive Housing Support Mount Replacement

    Mechanical System - Page 9-7 Creeper-Drive Housing Support Mount Replacement The creeper-drive assembly is supported on either side by rubber mounts. These mounts are installed at the factory in a preloaded condition in order to provide the correct support for the drive-train under all conditions. If the engine or creeper- drive assembly are removed from the machine for any reason, use the following procedure to correctly preload these mounts.

  • Page 29: Engine, Radiator, And Mounts

    Page 9-8 - Mechanical System Transmission Output-Shaft Seal Replacement cont'd. 10. Check to make sure the creeper-drive housing fits flush with the face of the transmission gearcase, and that it has not wedged on the output shaft. If the creeper-drive housing is not installed tightly against the transmission face, the transmission output shaft will have excessive end play.

  • Page 30: Radiator And Lower Radiator Mount Replacement

    Mechanical System - Page 9-9 Radiator and Lower Radiator Mount Replacement 1. Follow the procedure for removing the upper mounts with one exception - drain all of the engine coolant. 2. Disconnect the lower radiator hose from the radiator. 3. Disconnect the oil-cooler return hose at the oil-filter inlet fitting. Some hydraulic fluid will be lost. 4.
  • Page 31 Page 9-10 - Mechanical System Engine Replacement cont'd. 12. Note the connector locations of the two hoses which connect to the creeper-drive motor. Disconnect the hoses and cap the open hose ends and motor ports to prevent system contamination. 13. Disconnect the drive shaft from the creeper bull gear and drop the Driveshaft out of the way. 14.
  • Page 32 Mechanical System - Page 9-11 Figure 9-4 Clutch and Transmission Assembly 5000054 01/09...

  • Page 33: Hammer Weight Replacement

    Page 9-12 - Mechanical System HAMMER WEIGHT REPLACEMENT 1. Raise the lead mast into the vertical position and move the carriage to the far right-hand travel limit. 2. Remove the tool, clamp, and tool holder. 3. Using the hammer-valve control lever, carefully lower the weight to the ground. 4.
  • Page 34 Mechanical System - Page 9-13 Figure 9-5 Lead Center-Pivot Bearing & Cross-Slide Bearing Block 5000054 05/07...

  • Page 35: Sideshift Carriage Replacement

    Page 9-14 - Mechanical System Lead Replacement cont'd. 11. Lift the lead assembly from the carriage with the overhead hoist, while guiding the lead pivot pin out of the bearings in the carriage assembly. 12. Carefully lower the lead mast assembly to the floor. 13.

  • Page 36: Hammer Weight Shim-Kit Installation

    Mechanical System - Page 9-15 Cross-Slide Bearing Block Replacement cont'd. 5. Loosen the two jam nuts and adjusting screws at the bottom of the carriage. Remove the five cap screws which connect the bottom guide to the carriage assembly. The bottom guide is located at the bottom of the carriage assembly.

  • Page 37: Hydraulic System

    Page 10-1 Hydraulic System PUMPS AND GEARMOTORS The main equipment pumps and the hydraulic gearmotors which are used in the creeper-drive and sideshift circuits are not usually repairable upon failure. Arrow recommends that these items be replaced or taken to a competent service center that specializes in hydraulic components if repair is to be attempted.
  • Page 38 Page 10-2 - Hydraulic System Valve-Spool Seals and Servo-Valve Assembly Replacement cont'd. 18. Carefully insert the valve spool, with the spring and stop sleeve, into the valve bore. NOTE: The valve spool is a very close fit to the valve bore. Do not force the parts! They will slide together easily when aligned correctly.

  • Page 39: Hammer Relief Valve And Seat Replacement

    Hydraulic System - Page 10-3 Valve-Spool Seals and Servo-Valve Assembly Replacement cont'd. 22. Install a new piston ring (Key 24) onto the servo-valve spool (Key 3). 23. Slide the small knob on the end of the servo valve into the mating notch that is machined into the upper end of the hammer-valve spool.

  • Page 40: Control-Circuit Relief Valve

    Page 10-4 - Hydraulic System CONTROL-CIRCUIT RELIEF VALVE The system relief valve for the control circuit (small pump) is located to the left side of the hydraulic pump, at the rear of the machine (see Figure 10-3). The relief valve is serviced by Arrow, as a complete unit only.

  • Page 41: Pilot-System Rotary Valve

    Hydraulic System - Page 10-5 Hammer-Circuit Relief Valve cont'd. Figure 10-4 Hammer-Circuit Relief Valve 8. To reassemble the relief valve, follow the sequence for disassembly in reverse order. 9. If the relief-valve setting was tampered with, take the entire relief-valve cartridge (including the valve body) to a hydraulic components service specialist who has test stand equipment for checking pressures and flows.
  • Page 42 Page 10-6 - Hydraulic System Pilot System Rotary Valve cont'd. 11. Install the valve base onto the valve body and spool assembly making sure to use a new gasket. Coat the threads of the six #10-24 UNC socket head cap screws with Loctite® grade 242 and torque to 65 lb-in.

  • Page 43: Creeper-Control Valve

    Hydraulic System - Page 10-7 CREEPER-CONTROL VALVE S/N: 6000-7049 The creeper-control valve contains a single-spool valve with a detent mechanism. There are no load-check valves and no internal relief valves in the assembly. The creeper-bypass valve is a separate assembly which screws into an open port on the creeper-control valve.
  • Page 44 Page 10-7a - Hydraulic System Creeper-Control Valve cont'd. 8. Pull the valve spool out of the valve housing. 9. Remove the O-rings (or quad rings) which are located in the valve housing at each end of the valve bore. 10. Install a new quad ring (from the spool-seal kit) in each of the O-ring grooves. (The groove will accept either the O-ring or the quad ring.

  • Page 45: Creeper-Bypass Valve

    Hydraulic System - Page 10-8 Creeper-Control Valve cont'd. 6. Replace the detent kit and mounting screw. Replace the spool seals and backup rings. Replace the bottom spool cover and screws. Replace the handle bracket. 7. Reinstall the creeper-control valve onto the machine. Reattach the six hoses and control lever. 8.
  • Page 46 Page 10-8a - Hydraulic System Creeper-Bypass Valve cont'd. Figure 10-7 Creeper-Bypass Valve Assembly (Ref 2000372) CREEPER-BYPASS VALVE S/N: 7050- The creeper-bypass is a separate solenoid valve assembly which is a normally closed valve. The stop light switch on the brake master cylinder actuates the solenoid valve when the brake pedal is depressed.

  • Page 47: Cushion Valve (Crossover Relief)

    Hydraulic System -Page 10-9 CUSHION VALVE (crossover relief) S/N 6000-7035 The cushion valve (or crossover relief) valve is located on the left hand A-frame upright near the creeper control valve. The cushion valve protects the creeper circuit from shock loads which result from the unit striking objects while operating in creep.

  • Page 48: Auto-Manual Valve

    Page 10-10 - Hydraulic System AUTO-MANUAL VALVE S/N 6000-7049 The auto-manual valve supplies pressurized hydraulic fluid to the pilot system when the control handle is placed in the "auto" or automatic position. The other two positions of the control spool block flow from the valve into the pilot system.
  • Page 49 Hydraulic System - Page 10-11 Auto-Manual Valve cont'd. 11. Remove the O-rings (or quad rings) located in the valve housing at each end of the valve bore. 12. If the relief-valve cartridge and load checks are not to be removed, skip to step 19. 13.
  • Page 50 Page 10-12 - Hydraulic System Auto-Manual Valve cont'd. 21. Lubricate the valve spool and slide it back into the valve bore. Insert the spool, control-handle end first, from the rear of the valve body. (The chamfer at the control-handle end of the valve spool will help to prevent damage to the new seals during installation of the valve spool).

  • Page 51: Function-Control Valves (Other Than Auto-Manual)

    Hydraulic System - Page 10-13 FUNCTION-CONTROL VALVES (other than auto-manual 4001968, 4001970, 4001971) S/N 6000-7049 There are several function-control valves on the Arrow control panel which are housed in separate two- spool or three-spool assembly configurations, depending upon the control options which were selected when the machine was built.

  • Page 52: Pilot-Valve Assembly (Electronic Stroke Only)

    Page 10-14 - Hydraulic System Pilot-Valve Assembly cont'd. Remove the valve assembly from the machine. Unscrew the nut from the center post on the coil. Remove the coil to expose the top of the spool section. Remove the threaded fitting at the top of the spool section, and remove the spool and the return spring.
  • Page 53 Hydraulic System - Page 10-15 Flow Divider cont'd. Turn the relief-valve screw in a CCW direction to remove it from the valve housing. Remove the spring and the cone-shaped valve plunger. NOTE: The relief valve on the flow divider is factory set to provide a maximum pressure of 1000 psi to the regulated (steering) circuit.

  • Page 54: Sideshift Motor And Sprocket Replacement

    Page 10-16 - Hydraulic System SIDESHIFT MOTOR AND SPROCKET REPLACEMENT Refer to Figure 10-16, Sideshift Motor and Sprocket Assembly. Loosen the jam nuts on each of the two chain adjustment screws, located at the rear of the carriage near the center pivot, and loosen the sideshift drive chain. Loosen the set screw in the sprocket.

  • Page 55: Layback Cylinder

    Hydraulic System - Page 10-17 Sideshift Motor and Sprocket Replacement cont'd. Reinstall the motor, making sure the key is in place on the motor shaft. Push the bearing pin back in the mounting bracket until the pin bottoms on the end of the motor shaft. Do not tighten the pinion shaft clamping screw at this point.
  • Page 56 Page 10-18 - Hydraulic System Layback Cylinder cont'd. Pull the cylinder rod assembly and the cylinder head from the cylinder body. Grasp the base end of the rod yoke with a bench wise. NOTE: Do not grasp the plated surface of the cylinder rod between the jaws of a vise. The vise will permanently mar the finish on the rod rendering the rod useless.

  • Page 57: Tilt Cylinder

    Hydraulic System - Page 10-19 Layback Cylinder cont'd. 12. Install a new O-ring and back-up ring (from the seal kit) on the inside diameter of the cylinder head. Install the back-up ring on the low pressure side of the O-ring (toward the outside). Refer to Figure 10-17.
  • Page 58 Page 10-20 - Hydraulic System Stroke Adjust and Cable Adjust Cylinders cont'd. Place a wrench over the hexagonal-shaped cylinder head. Twist the cylinder head in a CCW direction to unscrew it from the cylinder body. Slide the cylinder rod assembly with the cylinder head out of the cylinder body. Slide the cylinder head off the piston rod over the threaded portion of the rod.
  • Page 59 Hydraulic System - Page 10-21 Stroke Adjust and Cable Adjust Cylinders cont'd. Figure 10-18 Adjustment Cylinder Assembly 5000054 05/07...

  • Page 60: Hammer Lift Cylinder (Automatic Cylinder)

    Page 10-22 - Hydraulic System HAMMER LIFT CYLINDER (automatic cylinder) LIFT CYLINDER DISASSEMBLY Refer to the following instructions and Figures 10-19,10-20, & 10-21 when disassembling the Lift Cylinder. Start the engine and raise the weight into the proper position and lock it in place using he locking pin on the lead.
  • Page 61 Hydraulic System - Page 10-23 Lift Cylinder Disassembly con't. Remove the hardware that secures the Guide Rod (3001290) to the Sheave Housing. Refer to Figures 10-19 & 10-20. NOTE: On units equipped with a Mechanical Stroke or Cable Adjust option, the Hex Rod and Adjustment Cylinders must also be removed.
  • Page 62 Page 10-24 - Hydraulic System Lift Cylinder Disassembly con't. Remove the Lift Cylinder Drain Plug. Drain and discard any remaining oil from the Lift Cylinder (See Figure 10-19). Loosen the connections on the Hydraulic Oil Line on both ends, and separate the Oil Line from the elbow fittings on the Lift Cylinder.
  • Page 63 Hydraulic System - Page 10-25 CYLINDER NUT SEAL INSTALLATION The Cylinder Nuts on every Lift Cylinder are identical. In some cases, the Cylinder Nut may be equipped with an O-Ring inside the bore. This internal O-Ring will be replaced by the new Internal Seal (p/n: 4001927) contained in the kit.
  • Page 64 Page 10-26 - Hydraulic System PISTON RING & PISTON SEAL INSTALLATION Before the Piston Rings and Seals can be replaced, the groove inside the Lift Cylinder tube, just below the threads, must be examined. Newer Lift Cylinders are equipped with a chamfered groove, while Older Lift Cylinders are equipped with a square groove.
  • Page 65 Hydraulic System - Page 10-27 Piston ring & piston seal installation con't Remove the Piston Nut (p/n: 4001207) that secures the Piston to the Lift Cylinder Rod, and remove the Piston (p/n: 3001322). Remove the old O-Rings and Piston Rings from the Piston. NOTE: Make sure the Piston (p/n: 3001322) and Piston Nut (p/n: 4001207) are clean before installing the New O-Rings &...
  • Page 66 Page 10-28 - Hydraulic System LIFT CYLINDER REASSEMBLY Refer to the following instructions and Figures 10-25, 10-26, & 10-27 when reassembling the Lift Cylinder. Lubricate the Wiper and Seal on the Cylinder Nut (p/n: 3001325) with hydraulic oil, and carefully slide it onto the threaded (bottom) end of the Cylinder Rod (p/n: 3001321) as shown in Figure 10-25.
  • Page 67 Hydraulic System - Page 10-29 Lift Cylinder Reassembly con't. Lubricate the Piston Seal or O-Ring with hydraulic oil, and carefully slide the Piston into the end open of the Cylinder Tube as shown in Figure 10-27). NOTE: It may be necessary to tap the upper end of the Lift Cylinder Rod firmly with a mallet in order to get the Piston to slide into the Cylinder tube.
  • Page 68 Page 10-30 - Hydraulic System Lift Cylinder Reassembly con't. 10. Reinstall the Sheave Housing to the Lift Cylinder Rod and align the Sheave Housing set screw with the hole in the Lift Cylinder Rod. Reinstall the Guide Rods. NOTE: Be sure the Sheave Housing is reassembled in the same location and orientation as it was prior to disassembly.
  • Page 69 Hydraulic System - Page 10-31 5000054 09/12...
  • Page 70 Page 10-32 - Hydraulic System 5000054 09/12...
  • Page 71 Hydraulic System - Page 10-33 5000054 09/12...

  • Page 72: Electrical System

    Page 11-1 Electrical System ELECTRONIC CONTROL STATION Electronic Control Station Replacement Remove the screws securing the Electronic Control Station to the control panel. Pull the Electronic Control Station back and out of the panel. Unscrew the electrical connector from the back of the Electronic Control Station. Reinstall the new Electronic Control Station by reversing the above procedure.

  • Page 73: Electrical Diagram (Firewall Gauges)

    Page 11-2 - Electrical System Figure 11-2 Electrical Diagram Firewall Mounted Gauges 5000054 05/07...
  • Page 74 Electrical System - Page 11-3 5000054 05/07...

  • Page 75: Electrical Diagram (Front Panel Gauges)

    Page 11-4 - Electrical System Figure 11-3 Electrical Diagram 5000054 1/09...
  • Page 76 Electrical System Page 11-5 5000054 1/09...

  • Page 77: Trouble Shooting

    Page 12-1 Trouble Shooting Table 12-1 General Trouble Shooting PROBLEM POSSIBLE CAUSE REMEDY Engine will not Interlock switch actuated. Check starting circuit interlock switches. crank. (Automatic stroke control lever must be in the "man/start" position, creeper drive must be disengaged, and the clutch pedal must be depressed).
  • Page 78 Page 12-2 - Trouble Shooting Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY Hydraulic creeper Creeper engaging lever or linkage not in Engage the creeper lever. Operate the will not work. the correct position. creeper control to engage the gears. Check for missing pins, key, and spring.
  • Page 79 Trouble Shooting - Page 12-3 Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY Side shift will not Seized motor. It is possible for a motor to be seized and not work - cont'd. show up as defective in the procedure above. If the side shift motor does not appear to rotate against the chain, remove the chain and attempt to rotate the motor by actuating the...
  • Page 80 Page 12-4 - Trouble Shooting Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY Lead will not tilt. Lead center pin is stuck. Disassemble the lead from the cross-slide carriage and repair. Dress off pin, if necessary. Check and replace center pin bushings if worn. Lubricate.
  • Page 81 Trouble Shooting - Page 12-5 Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY Layback cylinder The control valve is not centering to the Spring-assembly bolt (refer to the Parts will not hold. hold position. Manual) is loose - check and tighten the bolt. Worn or defective cylinder.
  • Page 82 Page 12-6 - Trouble Shooting Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY On down stroke Defective pilot valve. Replace pilot valve. the valve does not reverse and Broken spring on pilot valve. Replace spring. raise the hammer weight.
  • Page 83 Trouble Shooting - Page 12-7 Table 12-1 General Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY When raising the Worn or defective check valve. Repair or replace entire check valve. weight, the weight settles before Defective relief valve seat. Seal or replace. starting upward.

  • Page 84: Electronic Stroke Control Trouble Shooting

    Page 12-8 - Trouble Shooting ELECTRONIC STROKE CONTROL TROUBLE SHOOTING Refer to Table 12-2 General A correctly operating stroke-control system is evidenced by a repetitive stroke length, independent of terrain. Having set the stroke length, there should be no further requirement to change it. The hammer should be able to operate as long as necessary, without making further adjustments.
  • Page 85 Trouble Shooting - Page 12-9 Table 12-2 Electronic Stroke Control Trouble Shooting PROBLEM POSSIBLE CAUSE REMEDY Electronic Control Power switch turned "OFF". Turn power switch to "ON". Station power lamp does not turn ON (power Power lamp is defective. Check and replace bulb. lamp does not light).
  • Page 86 Page 12-10 - Trouble Shooting Table 12-2 Electronic Stroke Control Trouble Shooting - (cont'd.) PROBLEM POSSIBLE CAUSE REMEDY Excessive stroke Improper cable length. Adjust cable length. (hammer weight hits the cross Stroke length set too high. Stroke is approximately 8' at maximum setting member on the on the stroke control dial.

  • Page 87: Solenoid Valve

    Trouble Shooting - Page 12-11 Solenoid Valve The most common failure of a pilot valve is a sticky spool, usually caused by dirt in the system. If the spool sticks, the hammer valve receives no pilot signal. As a result, the hammer goes either to the top of the lead and stays, or goes to the bottom of the lead and won't lift.
  • Page 88 Page 12-12 - Trouble Shooting Figure 12-1 Electronic Stroke Control 5000054 05/07...
  • Page 89 Trouble Shooting - Page 12-13 Electronic Stroke Control Item Part Number Description 2000608 Controller 4001852 Toggle Switch 4001853 Boot 4001724 Red Lens 4001723 Lamp (2) 4001725 Amber Lens 4001721 Knob 2000609 Control Cable 3001827 14mm Sensor Bracket (1982-87) 3002003 18mm Sensor Bracket (1987- . . .) .
  • Page 90 CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects, and other reproductive harm.

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