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Summary of Contents for Landoll 325C
- Page 1 MODEL 325C/326C/327C/329C DETACHABLE TRAILER OPERATOR’S MANUAL 1900 North Street Marysville, KS 66508 (785)562-5381 F-490-1107 11/07...
- Page 3 MODEL 325C/326C/327C/329C DETACHABLE TRAILER OPERATOR’S MANUAL PURCHASED FROM: DATE ADDRESS: PHONE NO.: SERIAL NO.:...
- Page 4 424-9393 (or 366-0123 in Washington, D.C. area) or write to: NHTSA, U.S. Depart- ment of Transportation, Washington, D.C. 20590. You can also obtain other infor- mation about motor vehicle safety from the Hotline. In the event of a defect or problem with your LANDOLL equipment, please notify LANDOLL CORPORATION: LANDOLL CORPORATION...
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Page 5: Table Of Contents
TABLE OF CONTENTS SECTION DESCRIPTION PAGE NO. INTRODUCTION STANDARD SPECIFICATIONS OPERATING INSTRUCTIONS GENERAL ......... . . 3-1 PRE-COUPLING OF SEMITRAILER AND TRACTOR . - Page 6 SAFETY PRECAUTIONS THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL INJURY HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO AVOID POSSIBLE INJURY OR DEATH. DANGER DANGER INDICATES AN IMMINENTLY HAZARDOUS SITUA- TION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.
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Page 7: Introduction
PARTS LIST is a separate manual showing the various assemblies, subassemblies, and sys- tems. Refer to that manual when ordering Landoll replacement parts. Order parts from your Landoll dealer. WARRANTY The Warranty Registration form is located with the product documents. Fill it out and mail it within 15 days of purchase. -
Page 9: Standard Specifications
MODEL 329C (STD); 325C, 327C (OPTION) ........ -
Page 10: General
LANDOLL CORPORATION GENERAL TORQUE SPECIFICATIONS (REV. 4/97) THIS CHART PROVIDES TIGHTENING TORQUES FOR GENERAL PURPOSE APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED ON PROCESS OR DRAWING. ASSEMBLY TORQUES APPLY TO PLATED NUTS AND CAPSCREWS ASSEMBLED WITHOUT SUPPLEMENTAL LUBRICATION (AS RECEIVED CONDITION). - Page 11 LANDOLL CORPORATION HYDRAULIC FITTING TORQUE SPECIFICATIONS JIC, ORS, & ORB (REV. 10/97) THIS CHART PROVIDES TIGHTENING TORQUES FOR HYDRAULIC FITTING APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED ON PROCESS OR DRAWING. ASSEMBLY TORQUES APPLY TO PLATED CARBON STEEL AND STAINLESS STEEL FITTINGS ASSEMBLED WITHOUT SUPPLEMENTAL...
- Page 13 OPERATING INSTRUCTIONS 3-1 GENERAL This section supplies information for operation 3-1.2 Air Brake System of the semitrailer. It describes and locates controls The air brake system of the semitrailer is oper- and gives general operation procedures. Read all ated from the towing vehicle after coupling. The instructions, warnings, cautions, and danger notes towing vehicle’s air system must be coupled to the before attempting to operate the semitrailer.
- Page 14 REAR BUMPER ABS BLINK CODE DIAGNOSTIC TOOL REAR FLAG HOLDER TRAILER BED LOAD BLOCKS HYDRAULIC ENGINE SYSTEM ENGINE AND HYDRAULIC CONTROLS GOOSENECK LIFT ARM ABS LIGHT AIR RAISE/LOWER (OPT.) SCALE-O-MATIC (OPT.) OUTRIGGER D-RING KINGPIN GOOSENECK LOCK HANDLE GOOSENECK LOAD BLOCK TRIP HANDLE LOAD PIN APPROACH PLATE LOAD PLATE...
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Page 15: Pre-Coupling Of Semitrailer And Tractor
3-1.4 3-1.5 Electrical Hydraulic The only electrical operation required of the Controls are located on the driver’s side of the operator is interconnection of the towing vehicle trailer. A hydraulic pump must be coupled to the electrical cable plug with the semitrailer electrical trailer hydraulic system before any hydraulic con- receptacle. -
Page 16: Coupling Of The Tractor To The Semitrailer
3-3 COUPLING OF THE TRACTOR TO THE SEMITRAILER 3-3.3 Slowly back the towing vehicle so its DANGER fifth wheel contacts the front of the king pin plate on the semitrailer and slips under it. KEEP ALL PERSONNEL CLEAR OF Continue backing until the fifth wheel coupler FRONT, REAR, AND SIDES OF TOW- locks onto the semitrailer kingpin. -
Page 17: Tractor And Semitrailer Check-Out
3-5 TRACTOR AND SEMITRAILER CHECK-OUT WARNING 3-5.1 Activate the hydraulic power source. 3-5.2 Be sure the GOOSENECK LIFTARM FAILURE TO PROPERLY SET AND (See Section 3-9) is in the "UP" position. CHECK PARKING BRAKE, AND 3-5.3 Using the TRAILER LIFT lever (See Section 3-12), lift the trailer up until the load CHOCK WHEELS WHEN PARKING blocks can be lowered into position (See... - Page 18 KEY SWITCH THROTTLE GOOSENECK LIFTARM LEVER START TRAILER LIFT LEVER START LANDOLL PULL TO RELEASE GOOSENECK LOCK HANDLE LOAD BLOCK PULL TO RELEASE TRIP HANDLE hydr controls Figure 3-3 Hydraulic Controls...
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Page 19: Towing The Semitrailer
3-6 TOWING THE SEMITRAILER CAUTION Driving the towing vehicle with the semitrailer coupled behind requires constant attention to the overall length of the combination. The “hinged-in- IF A FAULT EXISTS IN THE SEMI- the-middle” configuration of the tractor and semi- TRAILER ABS, NORMAL BRAKING trailer, load, and weight effect performance. -
Page 20: Parking The Trailer
3-7 PARKING THE TRAILER WARNING 3-7.1 Position truck/semitrailer rig on a level, solid surface. WHEN LEAVING THE SEMITRAILER 3-7.2 Set the PARKING BRAKE, not the UNATTENDED, POSITION ALL HY- semitrailer hand brake, and check for proper DRAULIC CONTROLS TO THE NEU- brake holding. -
Page 21: Load Blocks Trip Lever
3-10 LOAD BLOCKS TRIP LEVER When the lever is placed in this posi- The LOAD BLOCKS TRIP LEVER (See Fig- tion, it raises the load blocks up to ures 3-3) is located on the driver's side of the the "DETACH" position. gooseneck. -
Page 22: Hand Valve (Option)
3-14 HAND VALVE (OPTION) The HAND VALVE (See Figure 3-5) is located on the front side of rear tail channel beside the MAXIMUM AIR HEIGHT CONTROL VALVE. It has two posi- ADJUSTMENT tions: RIGHT Placing the valve in this position will exhaust the air from the air ride sys- tem, lowering the trailer deck when the AIR HEIGHT CONTROL VALVE... -
Page 23: Automatic Height Valves (325)
BOLSTER AXLE LIFT CONTROL VALVE AIR HEIGHT CONTROL VALVE HAND VALVE AIR PRESSURE GAUGE AIR BAG CROSSTUBE AUTOMATIC HEIGHT VALVES AIR RESERVOIR TRUNNION automatic height valves Figure 3-6 Automatic Height Valves 3-16 AUTOMATIC HEIGHT VALVES (325) POSITION The AUTOMATIC HEIGHT VALVES The AUTOMATIC HEIGHT VALVES (See Fig- have no particular position, but are ure 3-6) are located inside left main member of the... -
Page 24: Axle Lift Control Valve (Option)
3-17 AXLE LIFT CONTROL VALVE (OPTION) The AXLE LIFT CONTROL VALVE (See Fig- ure 3-7) is located on the rear airbag crosstube. It is used to control the axle lift system and has two positions. Placing the control valve in this posi- DOWN tion raised the associated axle up off the surface of the ground. -
Page 25: Swingout Outrigger Platform Extension Set-Up
3-20 SWINGOUT OUTRIGGER PLATFORM EXTENSION SET-UP DANGER 3-20.4 Center the load on the trailer. DO NOT load to one side. Position the load for proper DO NOT OPERATE IF ANY EXTENSION weight distribution. See Section 3-21 for loading procedure. IS NOT LOCKED IN PLACE. INSPECT ALL EXTENSIONS TO INSURE EACH IS WARNING LOCKED SECURELY IN POSITION. -
Page 26: Preparation For Loading And Unloading
3-21 PREPARATION FOR LOADING AND UNLOADING CAUTION 3-21.1 Practice all standard industrial safety standards. Do not load any payload that will MODEL 325C SEMITRAILER MAXIMUM overload any component of the trailer or cause an unsafe condition. CONCENTRATED LOAD IN A 10 FT. 3-21.2 Park the tractor/semitrailer in a straight AREA IS 100,000 LBS. -
Page 27: Loading The Semitrailer
3-22 LOADING THE SEMITRAILER 3-22.4 Drive the load onto the semitrailer. In- 3-22.1 Set the semitrailer up for loading as out- sure that the load is steering straight up onto lined in Section 3-21. the semitrailer and does not maneuver off 3-22.2 Release the strap securing the load the side of the semitrailer. - Page 28 FRAME GOOSENECK GOOSENECK FRAME LOAD PLATE LOAD BLOCK TRIP HANDLE LOAD BLOCK WELDMENT LOAD PIN LOCK ASSEMBLY 326-327-detach Figure 3-9 Gooseneck Attachment to Frame 3-16...
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Page 29: Preparation For Transport
3-24 PREPARATION FOR TRANSPORT CAUTION 3-24.1 After securing the load, following the steps as outlined in Section 3-23, back the tractor until the gooseneck is within a few FAILURE TO SUPPORT THE SEMI- inches of the front of the semitrailer. TRAILER FULLY ON THE LOAD 3-24.2 Using the GOOSENECK LIFT ARM LE-... - Page 30 AIR HEIGHT CONTROL VALVE AUTOMATIC VALVES HAND VALVE TRUNNION MAIN MEMBER AIR PRESSURE TRUNNION BULKHEAD GAUGE TRAILER BULKHEAD AIR BAG CROSSTUBE 1-1/2” CONNECTING BOLT TRUNNION ALIGNMENT PIN TRUNNION LOAD PLATE detach trunnion Figure 3-10 Detachable Trunnion 3-18...
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Page 31: Air Ride Operation
3-26 AIR RIDE OPERATION CAUTION 3-26.1 Trailer air pressure must be maintained above 90 PSI before operating. PROTEC- IF SUSPENSION AIR LOSS SHOULD TION VALVES are used to maintain 65 PSI OCCUR, COMPLETELY DEFLATE SUS- air brake pressure during suspension or re- PENSION AND TEMPORARILY OPER- mote system air loss. -
Page 32: Trailer Axle Lift (Model 325)
3-28 TRAILER AXLE LIFT (MODEL 325) 3-28.1 Locate the AXLE LIFT CONTROL The trailer axle lift is used to raise an axle off VALVE (See Section 3-17). the surface when it is not needed. If your 3-28.2 Turn the valve to the "UP" position to semitrailer is equipped with this option, the proce- raise the axle. -
Page 33: Hydraulic Power Supply Engine System
3-30 HYDRAULIC POWER SUPPLY ENGINE SYSTEM 3-30.3 Turn the key to the "START" position. The hydraulic power supply engine system is The engine should crank and then start. If used to power the hydraulic controls in the event the engine does not start, refer to Section the towing vehicle is not equipped with hydraulic 5-6. -
Page 34: Anti-Lock Brake System (Abs)
3-31 ANTI-LOCK BRAKE SYSTEM (ABS) CAUTION Vehicle standards FMVSS No. 121, anti-lock brake system requires all trailers manufactured af- ter March 1, 1998 with air brake systems to have THE AUXILIARY (BLUE) CIRCUIT IS ABS. Each trailer (including a trailer converter FOR POWERING THE SEMITRAILER dolly) shall be equipped with an anti-lock brake ABS. -
Page 35: Cold Weather Operation
3-32 COLD WEATHER OPERATION 3-32.2 During any extended stop period, nei- 3-32.1 Cold weather causes lubricants to con- ther the service nor parking brake should be geal, insulation and rubber parts to become used as they can freeze up. Use wheel hard, which may lead to problems found in chocks to secure the vehicle from moving. -
Page 37: Maintenance And Lubrication
MAINTENANCE AND LUBRICATION This section contains instructions necessary for proper maintenance of the semitrailer. The Model 325/326/327/329C detachable trailer is designed for years of service with minimal maintenance. However, proper maintenance is important for du- rability and safe operation and is an owner/user re- sponsibility. - Page 38 CYLINDER END LOAD BLOCK ADJUST BUSHINGS (1) ROD ASSEMBLY (1) (FOUR PLACES) (FOUR PLACES) LOAD BLOCK PIVOTS (1) (FOUR PLACES) LOCK PINS KINGPIN PLATE LOCK ASSEMBLY W/ 2 ZERKS HUB OIL (3) lube points Figure 4-1 Lubrication Points LUBE SEASON BRAND AND PRODUCT (WEIGHT AND/OR TYPE) AMOCO...
- Page 39 CENTRALIZED GREASE SYSTEM LOCATION SHAFT BUSHINGS SLACK ADJUSTERS (1) CENTRALIZED GREASE SYSTEM CENTRALIZED GREASE SYSTEM TANDEM AXLE (326C) TRIPLE AXLE (325C, 327C, 329C) lube points p2 Figure 4-2 Lubrication Points...
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Page 40: Maintenance Procedures
4-2 MAINTENANCE PROCEDURES 4-2.1 Repair Parts 4-2.4 Cleaning Repair parts are illustrated and listed in a a. Wash semitrailer to remove all accumulated separate parts manual. Replacement of parts due dirt and grime. to wear is determined by examination and meas- b. - Page 41 NORMAL OPERATING SERVICE INTERVALS SERVICE TIMES 1st 5 Weekly Monthly Yearly INTERVAL : Months ITEM MILES 2,000 12,000 25,000 LIGHTS WIRING & CONNECTIONS FASTENERS KING PIN AND PLATE C,I,L BRAKE AIR SYSTEM RELAY VALVES BRAKE ADJ & WEAR SLACK ADJUSTERS CAMSHAFT ASSYS HUB OIL WHEEL BEARINGS...
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Page 42: Gooseneck, Frame, And Deck
If any cracks or breaks are found, contact the Landoll factory for repairs. Inspect the deck daily for broken or miss- ing planks or missing attachments. Replace any defective parts promptly. -
Page 43: Electrical System
MUST BE DONE BY A QUALIFIED PER- SON USING PROPER TOOLS AND PROCEDURES. CONTACT LANDOLL FACTORY FOR SERVICING AND REPAIR OF THE FIFTH WHEEL. USING AN IMPROPERLY REPAIRED OR REBUILT FIFTH WHEEL MAY RE- SULT IN SERIOUS INJURY OR DEATH... - Page 44 Figure 4-3 Models 325/326/327/329C Wiring Diagram...
- Page 45 325/326/327/329C WIRING PARTS LIST 325/326/327/329C WIRING PARTS LIST REF. FUNCTION REF. FUNCTION DES. DES. FRONT LEFT CLEARANCE, YELLOW DS26 LEFT STOP/TAIL, OUTER FRONT RIGHT CLEARANCE, YELLOW DS27 RIGHT STOP/TAIL, OUTER FRONT LEFT MARKER, YELLOW DS28 LEFT STOP/TAIL, INNER FRONT RIGHT MARKER, YELLOW DS29 RIGHT STOP/TAIL, INNER LEFT FRONT BED MARKER, YELLOW...
- Page 46 4-6.2 Periodic Maintenance of the Gooseneck c. Check for a tight fit. The plug should be Lock Mechanism: snug, but you should be able to rotate it by a. The gooseneck lock mechanism should be applying some force. inspected and adjusted as necessary or every d.
- Page 47 4-6.3 Gooseneck Lock Rebuilding Procedure: Check the position of the yoke tips. They must be flush with the ends of the locks or Refer to Figure 4-8 for parts identification and must not extend more than 1/32" beyond the proper parts orientation. ends of the locks (See Figure 4-6).
- Page 48 RELEASE BAR WELDMENT 1/2-20 X 1-3/4 HEX 5/8-18 X 1-3/4 HEX HEAD HEAD CAP SCREW CAP SCREW 1/2W FLAT WASHER CAM PLATE WASHER 1/2 X 2-3/4 ROLL PIN CAM ROLLER TORSION SPRING CAM PLATE LOCK JAWS RH SECONDARY LOCK CAM PLATE WASHER YOKE WELDMENT YOKE SHAFT LOCK WELDMENT...
- Page 49 m. Install, in this order, the rubber washer, the u. Insert the 1/2 bolt through the washers, the metal washer, and the 3/4" lock nut. roller, the cam, and the top plate lug and se- n. Insert the release handle through the cure with a 1/2 lock nut.
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Page 50: Suspension Maintenance
Check to trained service personnel. If the bushings the shocks for excessive wear. need to be replaced, contact a Landoll autho- rized service center or the Landoll factory for servicing (See Figure 4-9). Figure 4-9 Spring Suspension System... - Page 51 4-7.2 See Figure 4-10 for Tandem/Triple Axle Air Ride Suspension drawings. b. Check all other suspension components for a. Physically check all nuts, bolts, and air line any sign of damage, looseness, wear or fittings for proper torque (see torque chart be- cracks.
- Page 52 4-7.3 e. Check the ride height to make sure it is cor- Air Ride Height Adjustment. (See Fig- rect. Consult Landoll Service Center if correct ure 4-11 for parts identification). height cannot be obtained. a. Before adjusting, the vehicle must be empty f.
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Page 53: Alignment
Figure 4-12 Checking Axle for Bend 4-8 ALIGNMENT 4-8.1 a. Remove wheel, hub and bearing assem- Wheel Alignment blies. DANGER b. Place a 3-point axle gauge against the front side of the axle, and adjust each axle gauge point to the axle. (Double point end against TO PREVENT A LIFE THREATENING the inner and outer wheel bearing surfaces of ACCIDENT:... - Page 54 Figure 4-13 Checking Axle Alignment Figure 4-14 Examples of Camber 4-18...
- Page 55 4-8.2 b. Air Ride Suspension Axles Axle Alignment Proper axle to king pin alignment is necessary The air ride suspension is aligned and ad- to obtain straight tracking. If axle alignment is off, justed at the factory and it should not be necessary “dog-tracking”...
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Page 56: Brake System Maintenance
4-9 BRAKE SYSTEM MAINTENANCE WARNING a. Check air hoses for chafing, bends, kinks, or damaged fittings. Replace defective hoses. 1. WHEN CRAWLING UNDER THE b. Check the brake system for loose, missing, deformed, or corroded fasteners. Replace SEMITRAILER IS NECESSARY, CHOCK and tighten defective hardware. - Page 57 WARNING REPAIR OR REPLACEMENT OF THE RELAY/EMERGENCY VALVE IS A COM- PLEX OPERATION AND SHOULD BE PERFORMED BY TRAINED SERVICE PERSONNEL. CONTACT A LANDOLL AUTHORIZED SERVICE CENTER OR THE LANDOLL FACTORY FOR SERVIC- ING. 4-21...
- Page 58 Figure 4-16 Brake Lining Wear 4-9.4 Brake Assembly Maintenance 5. Press down on the bottom brake shoe and The brake assemblies should be inspected and remove the lower cam roller. Lift the top adjusted every 2,000 miles or monthly. Examine shoe and take out the top cam roller.
- Page 59 Figure 4-17 Axle and Brake Assembly 4-23...
- Page 60 5. Install the brake keeper onto the shoes. 5. The push rod stroke should be 1 1/2" to 2" Install shoes onto the spider by placing with an 100 to 105 PSI service brake shoes in place on the anchor pins, then application.
- Page 61 Figure 4-18 Slack Adjuster 5. Fit the installation guide over the cam 14. Install the slack adjuster on the cam shaft. splines so the 1/2" pin slots face the air 15. Rotate the manual adjuster shaft CW until chamber. the slack adjuster arm holes align with the 6.
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Page 62: Hub And Drum Maintenance
4-10 HUB AND DRUM MAINTENANCE WARNING 4-10.1 Clean and inspect the brake drums whenever relining the brakes. To be suitable for further service, the brake drum should TURNING A BRAKE DRUM BEYOND pass the following checks. 0.040 INCHES UNDER THE MAXIMUM a. - Page 63 Figure 4-19 Outboard Mount Hub and Drum g. Insert bearing cups into the hub. k. Install the outer bearing cone and inner spindle nut, tightening the nut until it is snug h. Clean the mounting surfaces with a good against the outer bearing cone. Remove the grade commercial cleaner and soft rag.
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Page 64: Wheel Bearing Lubrication And Adjustment
4-11 WHEEL BEARING LUBRICATION AND ADJUSTMENT With semitrailer sitting level, the oil level must g. Retighten the inner adjustment nut to 50 be checked daily and maintained between the ft.-lbs. while rotating the wheel, to properly “ADD” and “FULL” lines on the hub cap window. position the bearings for the final adjustment. -
Page 65: Tire Maintenance
Figure 4-20 Tire Inflation Examples 4-12 TIRE MAINTENANCE 4-12.1 Tire Inflation. Tire inflation will cause 4-12.2 Tire Matching. Both tires on the same tire to ground contact characteristics as spindle must be the same size in order to properly distribute the load and braking forces shown in Figure 4-20. - Page 66 Figure 4-23 Mounting Tires and Wheels 4-12.3 c. Position the outer disc wheel being careful Mounting Tire and Wheel (Hub Type) not to damage the stud threads. Be sure the a. Make sure that all mounting surfaces are valve stems for both the inner and outer tire clean and free of rust, dirt or paint.
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Page 67: Hydraulic Engine Package (Option)
4-13 HYDRAULIC ENGINE PACKAGE (OPTION) The hydraulic engine package should be in- 4-13.3 Check the engine oil each time before spected weekly to insure continued proper opera- using. Oil level should be maintained be- tion. The inspection should include: tween the “ADD” and “FULL” marks on the 4-13.1 Check the hydraulic oil level weekly, or oil dip stick. -
Page 69: Troubleshooting
TROUBLESHOOTING Troubleshooting should be performed by a trained and competent technician. Landoll Corporation is not responsible for equipment that is improperly maintained. Contact an authorized Landoll Service center or the Landoll factory for servicing. 5-1 ELECTRICAL Most electrical system problems show up as a burned out light or fuse, or inoperative electrical compo- nent. - Page 70 5-2 TIRES - WHEELS - SUSPENSION Most tire, wheel, and suspension related problems are due to excessive loads, extreme conditions, and improper maintenance. Tire, wheel, and suspension problems can be easily detected and solved by check- ing the following guide. SYMPTOM PROBLEM: REMEDY VIBRATIONS WHILE DRIVING...
- Page 71 TIRES - WHEELS - SUSPENSION (CONTINUED) SYMPTOMS PROBLEM: REMEDY RIM FAILURE*: CRACKING Over inflated tires: deflate tire to proper PSI. High speeds: adjust speed according to road and load conditions. High speed cornering: adjust cornering practices. Over loading: check rim load rating. *IN ALL INSTANCES OF RIM FAILURE, REPLACE THE RIM IMMEDIATELY! BENDING OR WARPING Curb-hopping or potholes: adjust turning practices and adjust...
- Page 72 5-3 BRAKES SYMPTOM PROBLEM: REMEDY NO BRAKES OR BRAKES Brake air system improperly connected: reconnect hand ARE INTERMITTENT valves properly. Relay/Emergency valve plugged: clean valve. Defective tractor protection valve: repair or replace. Restricted tubing or hose line: locate and eliminate restriction. Broken line: locate break and repair.
- Page 73 BRAKES (CONTINUED) SYMPTOM PROBLEM: REMEDY ALL BRAKES DO NOT RELEASE Air system improperly connected to tractor: tighten or adjust connections. Brake valve on tractor is applied: release brake. Relay emergency valve in emergency position: check line pressure and check valve. Restricted tubing or line: locate restriction and remove.
- Page 74 BRAKES (CONTINUED) SYMPTOM PROBLEM: REMEDY BRAKES WILL NOT APPLY Initial air pressure too low: allow air system to build up to WHEN EMERGENCY LINE IS minimum 90 PSI and stabilize. DISCONNECTED Defective relay valve: repair or replace valve. Air line leak: locate leak and repair. Brake chamber leak: locate leak and repair or replace.
- Page 75 5-5 HYDRAULIC SYSTEM Most hydraulic system failures follow the same pattern: a gradual or sudden loss of pressure or flow with a resulting loss of cylinder or motor power. Any one of the system’s components may be at fault. By following step-by-step procedures, the trouble can be located in a short time.
- Page 76 HYDRAULIC SYSTEM (CONTINUED) SYMPTOM PROBLEM: REMEDY SYSTEM OPERATES TOO FAST Wrong size or incorrectly adjusted restrictor: replace or adjust as necessary. Engine running too fast: reduce engine speed. OVER HEATING OF Oil passing through relief valve for excessive time: return con- OIL IN SYSTEM trol valve to neutral when not in use.
- Page 77 5-6 HYDRAULIC POWER SUPPLY ENGINE PACKAGE To troubleshoot the engine in the hydraulic engine package, please refer to the owner's manual that was provided with the engine package.
- Page 78 NOTES 5-10...
- Page 80 Equipment from Landoll Corporation is built to exacting standards ensured by ISO 9001registration at all Landoll manufacturing facilities. Model 325C/326C/327C/329C Detachable Trailer Operator’s Manual Re-Order Part Number F-490-1107 LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM Copyright 2010.
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