Landoll 425B Series Operator's Manual
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Landoll 425B Series Operator's Manual

Semitrailer
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Model 425B/440/455 Series
Semitrailer
Operator's Manual
4 5
5
LANDOLL CORPORATION
1900 North Street
Marysville, Kansas 66508
(785) 562-5381
800-428-5655 ~ WWW.LANDOLL.COM
F-543-1011
10/2011

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  • Page 1 Model 425B/440/455 Series Semitrailer Operator’s Manual LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM F-543-1011 10/2011...

  • Page 3: Table Of Contents

    Table of Contents Introduction Understanding Safety Statements ..........1-2 Standard Specifications Operating Instructions General .
  • Page 4 Air Ride Operation ............3-21 Bulkhead (Option) .
  • Page 5 Brake System Maintenance ........... . . 4-18 General .
  • Page 6 F-543-1011 Edition...

  • Page 7: Introduction

    PARTS MANUAL is a separate manual showing the various assemblies, subassemblies, and systems. Refer to that manual when ordering Landoll replacement parts. Order parts from your Landoll dealer. WARRANTY The Warranty Registration form is included with the product documents.

  • Page 8: Understanding Safety Statements

    INTRODUCTION Understanding Safety Statements You will find various types of safety information on the following pages and on the machine signs (decals) attached to the vehicle. This section explains their meaning. The Safety Alert Symbol means ATTENTION! YOUR SAFETY IS INVOLVED! ...

  • Page 9: Standard Specifications

    Chapter 2 Standard Specifications MODEL 425B/440/455 CAPACITY*: 50,000 LB. DISTRIBUTED TANDEM AXLE (MODEL 425B) 30,000 LB. CONCENTRATED IN 16’ STANDARD FRAME DESIGN 40,000 LB. CONCENTRATED IN 16’ OPTIONAL ADDITIONAL CROSSMEMBERS 80,000 LB. DISTRIBUTED TANDEM AXLE (MODEL 440) 50,000 LB. CONCENTRATED IN 10’ STANDARD FRAME DESIGN 110,000 LB.
  • Page 10 STANDARD SPECIFICATIONS MODEL 425B/440/455 DOCK LEVELER CAPACITY: 1 PAIR 62,000 LB. MODEL 425B, 440, OR 455 2 PAIR 62,000 LB. (124,000 LB.) MODEL 455 ONLY HYDRAULIC HOOKUP: FLAT FACE 3/4” BODY SIZE QUICK COUPLERS 2500 PSI MAXIMUM OPERATING PRESSURE 17 GPM OPERATING FLOW 7-WAY CONNECTOR ELECTRICAL HOOKUP:...
  • Page 11 STANDARD SPECIFICATIONS SPECIFIC BOLT TORQUES AIR RIDE SUSPENSION: EQUALIZER BEAM PIVOT AND ADAPTER BOLTS 800 FT.-LBS. DESIGNATED W/ NEWAY ON BOLT HEAD 550 FT.-LBS. DESIGNATED W/ HOLLAND NEWAY ON BOLT HEAD 4” AND 5” CAM FOLLOWERS ATTACHED TO UNDERCARRIAGE: 250 FT.-LBS. GREASED THREADS 500 FT.-LBS.
  • Page 12 STANDARD SPECIFICATIONS 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). THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE LUBRICANTS ARE USED.
  • Page 13 STANDARD SPECIFICATIONS 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 LUBRICATION (AS RECEIVED CONDITION) THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE LUBRICANTS ARE USED.
  • Page 14 STANDARD SPECIFICATIONS F-543-1011 Edition...

  • Page 15: Operating Instructions

    Chapter 3 Operating Instructions General Air Brake System The air brake system of the semitrailer is operated from This section supplies information for operation of the the towing vehicle after coupling. The towing vehicle’s air semitrailer. It describes and locates controls and gives system must be coupled to the semitrailer and charged to general operation procedures.
  • Page 16 OPERATING INSTRUCTIONS FRONT SERVICE HOOKUPS BULKHEAD (OPTION) LOCKABLE CHAIN WORK LIGHT SWITCH RACK (OPTION) OPERATION INSTRUCTION WINCH, UPPER DECK CONTROL PLACARD STORAGE WINCH CLUTCH AND TENSIONER COMPARTMENT CONTROL (OPTION) UPPER DECK DOCK LEVELER CONTROLS (OPTION) LOWER DECK KINGPIN HYDRAULIC CONTROLS REMOTE RECEPTACLE LANDING GEAR/ PARKING STANDS...

  • Page 17: Electrical

    OPERATING INSTRUCTIONS Electrical Pre-Coupling of Semitrailer and Tractor The only electrical operation required of the operator is interconnection of the towing vehicle electrical cable plug 1. Slowly back the tractor/truck (towing vehicle) up to with the semitrailer electrical receptacle. the front end of the semitrailer so the kingpin of the It is necessary that the tractor blue wire be connected to semitrailer is centered between the tractor fifth wheel the appropriate electrical source on the tractor.

  • Page 18: Coupling Of The Tractor To The Semitrailer

    OPERATING INSTRUCTIONS Coupling of the Tractor to the Connecting Tractor Services to Semitrailer the Semitrailer 1. Connect the towing vehicle 7-pole electrical plug to  DANGER the electrical receptacle on the front of the semitrailer (See Figure 3-3.) Keep all personnel clear of front, rear, and sides of towing vehicle and semitrailer during coupling, IMPORTANT component operations, and uncoupling.

  • Page 19: Tractor And Semitrailer Check-Out

    OPERATING INSTRUCTIONS Tractor and Semitrailer  CAUTION Check-Out 1. Landing gear legs must be fully retracted. Pin  drop landing gear and hydraulic operated WARNING landing gear must be secured with pins before operating or moving semitrailer. Failure to properly set and check parking brake, 2.
  • Page 20 OPERATING INSTRUCTIONS WINCH HYDRAULIC LEVER AXLE CONTROL LEVER TRAILER TILT LEVER WINCH CLUTCH AND TENSIONER CONTROL DOCK LEVELER CONTROL m139520 op Figure 3-4: Hydraulic Controls F-543-1011 Edition...

  • Page 21: Towing The Semitrailer

    OPERATING INSTRUCTIONS Towing the Semitrailer 3. The semitrailer wheels track to the inside of the towing vehicle during turns. Thus, turning corners requires a wide swing to prevent “curb hopping”, and  CAUTION to allow the semitrailer wheels to clear any obstacle on the inside of the corner.

  • Page 22: Uncoupling Towing Vehicle From Semitrailer

    OPERATING INSTRUCTIONS Uncoupling Towing Vehicle from  DANGER Semitrailer Always check behind and under the truck and 1. Park the semitrailer according to instructions in semitrailer for persons or objects before moving. “Parking the Trailer” on page 3-7. Failure to check can lead to serious personal 2.

  • Page 23: Swingout Outrigger Platform Extension Set-Up (Option)

    OPERATING INSTRUCTIONS 1-3/8” X 10” PLANKS 2X 129-13/32” 2X 98-1/4” REMOVE BOLTS CUT AT 30º ANGLE CUT AT 30º ANGLE ON ONE END ON ONE END SWINGOUT OUTRIGGERS CUT AT 30º ANGLE BOTH ENDS PULL-OUT 4X 113” EXTENSION outrigger platform extension Figure 3-5: Outrigger Platform Extension Swingout Outrigger Platform Extension Set-Up (Option)

  • Page 24: Pull Out Extensions

    OPERATING INSTRUCTIONS Pull Out Extensions  DANGER 1. Do not operate if any extension is not locked in place by spring loaded locking pin. Inspect all extensions to insure each is locked securely in position by the spring loaded locking pin. 2.

  • Page 25: Loading Procedure

    OPERATING INSTRUCTIONS Loading Procedure 5. If winch cable is connected to lower bed, disconnect cable from lower bed or reel out cable as needed to keep it from becoming too tight when tilting bed (See  DANGER “Winch Controls” on page 3-15.) Using the TRAILER TILT lever tilt the front of the bed up until 1.
  • Page 26 OPERATING INSTRUCTIONS Figure 3-7: Steps for Loading and Unloading 3-12 F-543-1011 Edition...

  • Page 27: Securing The Load

    OPERATING INSTRUCTIONS 12. After bed tilt angle is fully lowered, move the  CAUTION undercarriage to the rear until it is in transport position. The trailer deck will lower as the Tandem axle semitrailer maximum concentrated undercarriage rollers go into pockets. Hold TRAILER load in a 10ft.

  • Page 28: Unloading Procedure

    OPERATING INSTRUCTIONS Unloading Procedure  WARNING 1. Practice all standard industrial safety standards. Always use low load angle to load and unload 2. Park the tractor/semitrailer in a straight line on a level powered products. even surface (See Figure 3-7.) Set the tractor brakes and release the semitrailer brakes.

  • Page 29: Work Light (Option)

    OPERATING INSTRUCTIONS Winch Controls  CAUTION  Before returning the semitrailer to transport DANGER position, insure that there is sufficient distance 1. The winch is not designed or intended to be between the load and the rear of the semitrailer. used for lifting or moving people.

  • Page 30: Free Spool Clutch Operation (Warn Winch)

    OPERATING INSTRUCTIONS Free Spool Clutch Operation (Warn 2. The air freespool clutch is operated by application of air pressure to the fitting supplied on the winch Winch) gearbox housing (See Figure 3-9.) The fitting is designed to accept 1/4” rigid plastic tubing. Warn Series XL winches are equipped with either a manual or air operated freespool clutch depending on the a.

  • Page 31: Free Spool Clutch Operation (Braden)

    OPERATING INSTRUCTIONS Free Spool Clutch Operation (Braden) 1. The WINCH CLUTCH HANDLE (See Figures 3-10 and 3-11) is located on the right or curb-side end of ENGAGE the winch assembly. The function of the winch clutch handle is to engage PULL or disengage the winch, allowing it to respond to the Winch Hydraulic lever.
  • Page 32 OPERATING INSTRUCTIONS Figure 3-12: Dock Leveler Operation 3-18 F-543-1011 Edition...

  • Page 33: Dock Leveler Control Operation (Option)

    OPERATING INSTRUCTIONS Dock Leveler Control Operation 2. The DOCK LEVELER CONTROLS are located on the right side of the hydraulic control panel (See (Option) Figure 3-4.) There are two controls which adjust the height of the dock leveler cylinders. The front-most ...

  • Page 34: Hydraulic Power Supply Engine Operation (Option)

    OPERATING INSTRUCTIONS Hydraulic Power Supply Engine 2. The ENGINE IGNITION SWITCH is located on the engine control panel on the driver’s side of the Operation (Option) semitrailer. Use the key to start and stop the Hydraulic Power Supply Engine (See Figure 3-13.) 1.

  • Page 35: Air Ride Operation

    OPERATING INSTRUCTIONS Air Ride Operation  CAUTION 1. Trailer air pressure must be maintained above 90 PSI Do not crank engine for more than 10 seconds. If before operating. PROTECTION VALVES are used to engine does not start, consult the owner’s maintain 65 PSI air brake pressure during manual supplied with the engine.

  • Page 36: Bulkhead (Option)

    OPERATING INSTRUCTIONS CHAIN RACK BULKHEAD BULKHEAD SIDE BAR 1/4 X 2 COTTER PIN 1 X 5-1/8” PIN LH BULKHEAD m128136 op EXTENSION Figure 3-14: Bulkhead (Option) Bulkhead (Option) Remote Control (Option) 1. Optional bulkheads may come with or without chain 1.
  • Page 37 OPERATING INSTRUCTIONS 4. To operate the remote: a. Press and hold the POWER button for at least 2 seconds and release. Transmitter Error Code Chart b. The transmitter is designed with a power saving Error Code Probable Cause feature which turns the transmitter off after 15 minutes if no buttons are pressed.
  • Page 38 OPERATING INSTRUCTIONS Figure 3-16: Rear Impact Guard and Anti-Lock Brake System 3-24 F-543-1011 Edition...

  • Page 39: Rear Impact Guard System

    OPERATING INSTRUCTIONS Rear Impact Guard System Anti-Lock Brake System (ABS) Vehicle standards FMVSS No. 224, Rear Impact Vehicle standards FMVSS No. 121, anti-lock brake Protection, requires all 425B/440/455 Series trailers system requires all trailers manufactured after March 1, manufactured after January 26, 1998 shall be equipped 1998 with air brake systems to have ABS.

  • Page 40: Cold Weather Operation

    OPERATING INSTRUCTIONS Hot Weather Operation  CAUTION 1. Hot weather operation can create certain problems If a fault exists in the semitrailer ABS, normal which must be checked. Expansion of parts result in braking will occur, but wheels may lock. Service tightening of bearings, fasteners, and moving parts.

  • Page 41: Maintenance And Lubrication

    Chapter 4 Maintenance and Lubrication Inspection This section contains instructions necessary for proper maintenance of the semitrailer. The 425B/440/455 1. Inspect the tractor, the trailer, and trailer parts semitrailer is designed for years of service with minimal periodically for damage or signs of pending failure. maintenance.
  • Page 42 MAINTENANCE AND LUBRICATION SLACK ADJUSTERS CAMSHAFT BUSHINGS CAM FOLLOWERS REAR ROLLER (3) ENGINE PACKAGE OIL RESERVOIR (1) ENGINE CRANKCASE(6) WINCH (12,000 LB ONLY) (3) VIEW A-A CENTRALIZED GREASE SYSTEM WINCH GEAR CASE (2) HUB OIL (5) WINCH CABLES (4) BOTH SIDES PIVOT PIN (3) PARK STANDS (3) TILT CYLINDERS (3)

  • Page 43: Maintenance Procedures

    MAINTENANCE AND LUBRICATION BRAND AND PRODUCT (WEIGHT AND/OR TYPE) LUBE SEASON AMOCO EXXON PHILLIPS TEXACO ALL YEAR Rycon MV HDX Plus 10W Mangus Oil Rando HD-AZ A KV 5W-20 SUMMER Permagear EP Spartan 460 Phil Gear Lube 460 Meropa 460 SAE 140 SAE 140 SAE 140...
  • Page 44 MAINTENANCE AND LUBRICATION NORMAL OPERATING SERVICE INTERVALS SERVICE INTERVAL: 1ST 5 ITEM TIMES HOURS WEEKLY MONTHLY MONTHS YEARLY LUBE # NOTES MILES 2,000 12,000 25,000 LIGHTS WIRING AND CONNECTIONS FASTENERS KING PIN AND PLATE C,I,L BRAKE AIR SYSTEM RELAY VALVES BRAKE ADJ &...
  • Page 45 MAINTENANCE AND LUBRICATION PERIODIC HYDRAULIC ENGINE MAINTENANCE SCHEDULE AFTER EACH CYCLE OF INDICATED HOURS SERVICE ITEMS 1000 INSPECT ENGINE GENERALLY CHECK OIL LEVEL SERVICE AIR CLEANER ELEMENT AND ELEMENT WRAPPER SERVICE CRANKCASE OIL (all engines w/o filter) CHANGE CRANKCASE OIL (standard base w/ filter) CHANGE CRANKCASE OIL (high capacity base w/ filter) REPLACE OIL FILTER CHECK BATTERY ELECTROLYTE LEVEL...

  • Page 46: Gooseneck, Frame, And Deck

    If any cracks or breaks are found, contact the Landoll factory for repairs. Inspect the deck daily for broken or missing planks or missing attachments. Replace any defective parts promptly.

  • Page 47: Hydraulic System

    MAINTENANCE AND LUBRICATION Hydraulic System Hydraulic Engine Package 1. Check the hydraulic oil level weekly, or after any General leakage. See Table 4-1 for proper hydraulic oil. Check oil level with the undercarriage cylinders 1. Check the oil level of the tractor wet kit or hydraulic extended and all other hydraulic cylinders in the engine power hydraulic tank weekly, or after any retracted position and with the engine stopped.
  • Page 48 MAINTENANCE AND LUBRICATION 7-WAY RECEPTACLE FRONT OF CLEARANCE CLEARANCE TRAILER FRONT FRONT LEFT RIGHT MARKER MARKER FRONT FRONT LEFT RIGHT CONTROL ENGINE PANEL PANEL WORK LIGHT LIGHT LIGHTS TO REMOTE (SEE NEXT PAGE) DS23 DS24 DS25 DS26 LIGHT SWITCH MARKER MARKER SLOPE RIGHT SLOPE LEFT...
  • Page 49 MAINTENANCE AND LUBRICATION 400B remote control schematic Figure 4-4: Remote Wiring Diagram...
  • Page 50 MAINTENANCE AND LUBRICATION 425B/440/455 SERIES WIRING PARTS LIST REF. DES. FUNCTION REF. DES. FUNCTION FRONT LEFT CLEARANCE, YELLOW FRONT MAIN CONNECTOR FRONT RIGHT CLEARANCE, YELLOW J2 LOWER DECK CONNECTOR FRONT LEFT MARKER, YELLOW U/C CONNECTOR FRONT RIGHT MARKER, YELLOW BUMPER CONNECTOR LEFT SLOPE MARKER, YELLOW AUX.

  • Page 51: Electrical System

    Air Ride Suspension drawings. 5. Check the ride height to make sure it is correct. 2. Physically check all nuts, bolts, and air line fittings for Consult Landoll Service Center if correct height proper torque (see torque chart below). cannot be obtained.
  • Page 52 MAINTENANCE AND LUBRICATION EXHAUST PORT OUT: TO AIR BAGS TANK LOCATED ON BUMPER IN: FROM AIR SUPPLY 762m103082 Figure 4-5: Tandem Axle Air Ride Suspension System aride345 Figure 4-6: Air Ride Height Adjustment 4-12 F-543-1011 Edition...

  • Page 53: Triple Axle Air Ride Height Adjustment For Transport

    MAINTENANCE AND LUBRICATION 6. Loosen the 1/4” adjusting lock nut located on the 8. Move control arms to “down” position, completely adjusting block, allowing the control arm to move exhausting system. Then reconnect lower linkages approximately 1 inch. Move the adjusting block until and torque to 24-48 in.
  • Page 54 MAINTENANCE AND LUBRICATION N.O. (NORMALLY OPEN) PORT SUPPLIES AIR TO FRONT AND REAR AIR BAGS DURING TRANSPORT DOWEL PIN LOCATOR HEIGHT CONTROL INNER HOLE SETTING ADJUSTMENT NUT TRANSPORT RIDE TOP HOLE USED TO SET HEIGHT - TOP OF CONTROL LINKAGE FOR CENTER AXLE LOADING POSITION HEIGHT CONTROL ARM...

  • Page 55: Alignment

    MAINTENANCE AND LUBRICATION Figure 4-8: Checking Axle for Bend Alignment 1. Remove wheel, hub and bearing assemblies. 2. Place a 3-point axle gauge against the front side of the axle, and adjust each axle gauge point to the Wheel Alignment axle.

  • Page 56: Axle Alignment

    MAINTENANCE AND LUBRICATION Axle Alignment Air Ride Suspension Axles The air ride suspension is aligned and adjusted at the Proper axle to king pin alignment is necessary to obtain factory and it should not be necessary to align the axles. straight tracking.
  • Page 57 MAINTENANCE AND LUBRICATION Figure 4-9: Checking Axle Alignment Figure 4-10: Examples of Camber 4-17...

  • Page 58: Brake System Maintenance

    MAINTENANCE AND LUBRICATION Brake System Maintenance  WARNING 1. When crawling under the semitrailer is necessary, chock all wheels of the trailer and tractor. When jacking is necessary, chock all wheels and support the semitrailer undercarriage with jack stands sufficient to withstand the weight of the semitrailer and load.

  • Page 59: Spring Air Brake Chambers

    MAINTENANCE AND LUBRICATION Spring Air Brake Chambers Removal Check for faulty units. Check the condensation holes on 1. Chock all tractor and trailer wheels and drain the air the underside of the brake chambers to make sure they system. are open. The spring brake has two brake chambers, a 2.

  • Page 60: Emergency Relay Valve Maintenance

    Brakes should not be adjusted performed by trained service personnel. Contact a Landoll authorized service center or the Landoll manually except when relining brakes. factory for servicing. Disassembly for 12-1/4” X 7-1/2” Brakes 1.
  • Page 61 MAINTENANCE AND LUBRICATION Figure 4-13: Axle and Brake Assembly 4-21...

  • Page 62: Reassembly For 12-1/4" X 7-1/2" Brakes

    MAINTENANCE AND LUBRICATION Reassembly for 12-1/4” X 7-1/2” Brakes Reassembly for 16-1/2 x 7" Brakes 1. Install new camshaft bushing and seals into the 1. Install new anchor pin bushings, camshaft bushing spider. and camshaft seals into the spider. IMPORTANT IMPORTANT When installing camshaft seals, the seal on the slack When installing camshaft seals, the seal on the slack...

  • Page 63: Automatic Slack Adjuster

    MAINTENANCE AND LUBRICATION Automatic Slack Adjuster  WARNING The semitrailer automatic slack adjusters provide the means for routine brake adjustment to compensate for If the adjuster appears not to be operating, check lining wear. Inspect slack adjusters to assure correct the other brake components for proper function operation (See Table 4-2.) and eliminate any binding.

  • Page 64: Adjusting Slack Adjuster

    MAINTENANCE AND LUBRICATION COTTER PIN PUSHROD 1/2” CLEVIS PIN JAM NUT COTTER PIN 1/4” CLEVIS PIN CLEVIS INSTALLATION GUIDE CAMSHAFT SLACK ADJUSTER ADJUSTMENT HEX slack Figure 4-14: Slack Adjuster 7. Observe the guide pointer arrow: Adjusting Slack Adjuster If the guide pointer is above the clevis pointer, adjust 1.

  • Page 65: Hub And Drum Maintenance

    MAINTENANCE AND LUBRICATION Hub and Drum Maintenance 3. Replacement of the brake drum is required if any of the following conditions exist:  a. The brake drum is cracked. WARNING b. The brake surface is heat checked, grooved or worn beyond the rebore limit or the maximum Failure to replace faulty brake drums will result in diameter.
  • Page 66 MAINTENANCE AND LUBRICATION Figure 4-15: Outboard Mount Hub and Drum h. Clean the mounting surfaces with a good grade  WARNING commercial cleaner and soft rag. Dry all component parts with a clean, absorbent cloth or Failure to use the correct stud on the correct side paper.

  • Page 67: Wheel Bearing Lubrication And Adjustment

    MAINTENANCE AND LUBRICATION Wheel Bearing Lubrication and 7. Retighten the inner adjustment nut to 50 ft.-lbs. while rotating the wheel, to properly position the bearings Adjustment for the final adjustment. 8. Loosen the inner adjustment nut 1/3 turn. With semitrailer sitting level, the oil level must be checked daily and maintained between the “ADD”...

  • Page 68: Tire Maintenance

    MAINTENANCE AND LUBRICATION Figure 4-16: Tire Inflation Examples Tire Maintenance Tire Inflation Tire inflation will cause tire to ground contact characteristics as shown in Figure 4-16. Tire inflation should be checked daily while the tire is cold, and during road stops. Checking the tire pressures while tires are hot will give a faulty increased pressure reading.

  • Page 69: Mounting Tire And Wheel

    MAINTENANCE AND LUBRICATION Figure 4-19: Mounting Tires and Wheels Mounting Tire and Wheel  WARNING 1. Make sure that all mounting surfaces are clean and free of rust, dirt or paint. A wire brush may be used to Use a torque wrench to assure proper torque. clean these surfaces (See Figure 4-19.) Insufficient torque can cause stud breakage and damage wheel pilots.

  • Page 70: Winches

    MAINTENANCE AND LUBRICATION Winches Inspect the winch cable before and after every usage. If frayed wires, nicks, kinks, worn spots, breaks or any other sign of deterioration or damage is found, immediate replacement is mandatory before further usage. If the semitrailer is going to be out in the weather for any length of time, it is advisable to oil the winch cable to prevent untimely rusting and deterioration of the cable.
  • Page 71 MAINTENANCE AND LUBRICATION STABILIZER LEG CHECK VALVE ASSEMBLY O-RING (SEE NEXT PAGE) BACKUP WASHER O-RING O-RING BACKUP WASHER HEX HEAD CAP SCREW SNAP RING HEX HEAD CAP SCREW SPLIT LOCK WASHER RETAINING RING ROD SEAL HEAD RETAINER CYLINDER OIL SEAL O-RING BACKUP WASHER CYLINDER HEAD...
  • Page 72 MAINTENANCE AND LUBRICATION RETAINING PLUG BACKUP WASHER O-RING CHECK VALVE SPRING POPPET PLUG SIDE SECTION FRONT SECTION STABILIZER LEG CHECK VALVE (PRIOR TO 03/19/2010) REMOVE PLUG TO INSTALL ORIFICE FRONT SECTION TOP SECTION STABILIZER LEG CHECK VALVE (AFTER 03/19/2010) dock leg op p2 Figure 4-22: Stabilizer Leg Check Assembly 4-32 F-543-1011 Edition...

  • Page 73: Dock Levelers

    MAINTENANCE AND LUBRICATION Dock Levelers 6. Using a small flat screwdriver, carefully remove spiral retaining ring. Lift piston rod assembly out of cylinder 1. Perform the following service procedure on a yearly tube. basis: 7. Using a large snap ring pliers, remove heavy duty a.
  • Page 74 MAINTENANCE AND LUBRICATION COVER SCREW COVER - 2 SPEED BEVEL GEAR COVER SCREW THRUST WASHER GROOVED PIN OUTPUT SHAFT COVER - 1 SPEED INTERMEDIATE BUSHING SPIRAL PIN CROSS SHAFT BEVEL SPACER INPUT SPUR GEAR CROSS SHAFT WASHER GEAR BOLT OUTPUT BUSHING THRUST GROOVED PIN...

  • Page 75: Crank Landing Gear

    MAINTENANCE AND LUBRICATION Crank Landing Gear IMPORTANT 1. The landing gear receives adequate lubrication For two speed leg assemblies without the side during manufacturing. Relubrication is possible access hole, use a curved 3/8” diameter punch. through grease fittings and is recommended at three Remove output cluster shaft.
  • Page 76 MAINTENANCE AND LUBRICATION Page Intentionally Blank 4-36 F-543-1011 Edition...

  • Page 77: Troubleshooting Guide

    Most electrical system problems show up as a burned out responsible for equipment that is improperly maintained. light or fuse, or inoperative electrical component. Wiring, Contact an authorized Landoll Service center for grounds, or components may be at fault. Locate the servicing.

  • Page 78: Tires - Wheels - Suspension

    TROUBLESHOOTING GUIDE Tires - Wheels - Suspension • “Hydraulic System” on page 4-7 • “Alignment” on page 4-15 Most tire, wheel, and suspension related problems are • “Hub and Drum Maintenance” on page 4-25 due to excessive loads, extreme conditions, and improper maintenance.
  • Page 79 TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE SOLUTION BENDING OR WARPING Curb-hopping or potholes Adjust turning practices and adjust speed accordingly with road conditions. Improper tightening sequence Follow proper tightening sequence (See Figure 4-20.) BROKEN STUDS* Over tightening Use correct torque when mounting (See “Standard Specifications”...

  • Page 80: Brakes

    TROUBLESHOOTING GUIDE Brakes For maintenance procedures, see “Brake System Maintenance” on page 4-18. PROBLEM PROBABLE CAUSE SOLUTION NO BRAKES OR BRAKES ARE Brake air system improperly connected Reconnect hand valves properly. INTERMITTENT Relay/Emergency valve plugged Clean valve. Defective tractor protection valve Repair or replace.
  • Page 81 TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE SOLUTION 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 Check line pressure and check valve position Restricted tubing or line Locate restriction and remove...

  • Page 82: Brake Drums

    TROUBLESHOOTING GUIDE Brake Drums • “Suspension Maintenance” on page 4-11 • “Alignment” on page 4-15 For maintenance procedures, refer the following • “Brake System Maintenance” on page 4-18 sections: • “Hub and Drum Maintenance” on page 4-25 • “Wheel Bearing Lubrication and Adjustment” on page 4-27 PROBLEM PROBABLE CAUSE...

  • Page 83: Hydraulic System

    TROUBLESHOOTING GUIDE 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 84: Hydraulic Power Supply Engine Package

    TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE SOLUTION OVER HEATING OF OIL IN SYSTEM Oil passing through relief valve for Return control valve to neutral when not in excessive time Incorrect, low, dirty oil Use recommended oil (See Table 4-1). Fill reservoir with clean oil. Replace filter. Engine running too fast Reduce engine speed.

  • Page 85: Remote Control

    TROUBLESHOOTING GUIDE Remote Control PROBLEM PROBABLE CAUSE SOLUTION NO FUNCTIONS WORK Check that transmitter power is on. Self-explanatory Check that transmitter power is on Self-explanatory Check system wiring for power into the Tighten loose connections system. Check LED status display for system Self-explanatory status.
  • Page 86 TROUBLESHOOTING GUIDE 5-10 F-543-1011 Edition...
  • Page 88 Equipment from Landoll Corporation is built to exacting standards ensured by ISO 9001 registration at all Landoll manufacturing facilities. Model 425B/440/455 Semitrailer Operator’s Manual Re-Order Part Number F-543-1011 LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM Copyright 2010.

This manual is also suitable for:

440 series455 series440a series455a series440a455a

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