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Landoll 341 Operator's Manual

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MODEL 341
SEMITRAILER
OPERATOR'S MANUAL
1900 North Street
Marysville, KS 66508
(785)562-5381
F-376-0604
06/04

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  • Page 1 MODEL 341 SEMITRAILER OPERATOR’S MANUAL 1900 North Street Marysville, KS 66508 (785)562-5381 F-376-0604 06/04...
  • Page 3 MODEL 341 SEMITRAILER OPERATOR’S MANUAL PURCHASED FROM: DATE ADDRESS: PHONE NO.: SERIAL NO.:...
  • Page 4 800-424-9393 (or 366-0123 in Washington, D.C. area) or write to: NHTSA, U.S. De- partment of Transportation, Washington, D.C. 20590. You can also obtain other in- formation 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...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS SECTION NO. DESCRIPTION PAGE NO. INTRODUCTION ........1-1 STANDARD SPECIFICATIONS.
  • 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.

  • Page 7: Section No

    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

    STANDARD SPECIFICATIONS CAPACITY*: SINGLE AXLE ........15,000 LB. DISTR. - 5,000 LB. in 10 FT. KING PIN SETTING (FROM FRONT OF ALUMINUM BED): .
  • Page 10 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

    OPERATING INSTRUCTIONS This section supplies information for operation The electric/hydraulic brake system requires 12 of the trailer. It describes and locates controls and volt power to the red terminal. It should be 10 gives general operation procedures. Read all in- gauge wire with a 30 amp circuit breaker to protect structions, warnings, cautions and danger notes it.

  • Page 14: Pre-Coupling Of Semitrailer And Truck

    WARNING WARNING THE ELECTRIC/HYDRAULIC ACTUA- DO NOT ATTEMPT TO TOW THE TOR AND TRAILER BRAKES ARE IN- TOWED VEHICLE UNLESS THE EMER- TENDED ONLY TO SUPPLEMENT THE GENCY BREAK-A-WAY BATTERY IS SERVICE BRAKE SYSTEM ON THE FULLY CHARGED. TOWING VEHICLE. THE ACTUATOR WARNING AND TRAILER BRAKES ARE NOT DE- SIGNED TO FUNCTION AS A PARK...

  • Page 15: Coupling Of The Truck To The Semitrailer

    3-2 COUPLING OF THE TRUCK TO THE SEMITRAILER DANGER 3-2.3 Slowly back the truck so the fifth wheel contacts the kingpin plate. Continue backing KEEP ALL PERSONNEL CLEAR OF until the fifth wheel coupler locks onto the kingpin. FRONT, REAR, AND SIDES OF TRUCK 3-2.4 Try to pull the truck forward a few AND SEMITRAILER DURING COU-...

  • Page 16: Connecting Truck Services To The Semitrailer

    3-3 CONNECTING TRUCK SERVICES TO THE SEMITRAILER 3-3.1 Connect the truck 7-way electrical plug to the electrical receptacle on the front of the semitrailer (See Figure 3-1). IMPORTANT THE KEY ON THE PLUG AND THE KEYWAY IN THE SOCKET MUST BE PROPERLY ALIGNED BEFORE INSERTING THE PLUG INTO THE SEMITRAILER SOCKET.

  • Page 17: Truck And Semitrailer Check-Out

    3-4 TRUCK AND SEMITRAILER CHECK-OUT WARNING LANDING GEAR LEGS MUST BE FULLY RETRACTED AND SECURED WITH PINS BEFORE OPERATING OR MOVING SEMITRAILER. 3-4.2 Lower the front end with the TRAILER TILT lever until the semitrailer is fully low- ered. Hold lever in the down position until hy- draulic system works against the bottomed out hydraulic tilt cylinders.

  • Page 18: Towing The Semitrailer

    3-5 TOWING THE SEMITRAILER CAUTION 3-5.1 Driving the truck with the semitrailer coupled behind requires constant attention to the overall length. Turning, passing, acceler- DO NOT APPLY TRAILER BRAKES ating, braking, stopping, and back-up require FOR MORE THAN TWO MINUTES OR IT special considerations.

  • Page 19: Parking The Semitrailer

    3-6 PARKING THE SEMITRAILER WHEN LEAVING THE SEMITRAILER 3-6.1 Position truck/trailer rig on a level, solid surface. UNATTENDED, POSITION ALL HY- 3-6.2 Set the TRUCK PARKING BRAKE and DRAULIC CONTROLS TO THE NEU- check for proper brake holding. TRAL OR “OFF” POSITION AND SHUT 3-6.3 Chock wheels.

  • Page 20: Trailer Tilt Lever

    3-8 TRAILER TILT LEVER CENTER This is the neutral position. The The TRAILER TILT lever is located on the semitrailer stays in its current posi- driver’s side of the semitrailer under the outer tion. frame beam. (See Figure 3-2) It has three posi- tions: DOWN In this position, the front end of the...

  • Page 21: General Loading Procedure

    3-10.2 The HYDRAULIC WINCH CONTROL LEVER is the center lever (See Figure 3-2). It has three positions: In this position, the winch reels the winch cable in. CENTER This is the neutral position. This po- sition has some holding power, but cannot be relied upon to hold a load during transport.
  • Page 22 3-11.6 Winch or drive the load onto the semi- trailer. Insure that the load is steering straight up onto the semitrailer and does not maneu- ver off the side of the semitrailer. Continue until load center of gravity is just ahead of the axles.

  • Page 23: Loading Procedure For 20' Containers

    3-12 LOADING PROCEDURE FOR 20’ CONTAINERS 3-12.1 Read general loading procedures first to e. Operate the winch to tighten the chain. See become familiar with how to operate the Section 3-10 for winch operating instructions. trailer (See Section 3-11). f. Tilt the trailer down until the front of con- 3-12.2 Check the container to be loaded to see tainer is lifted enough to block up an inch or...
  • Page 24 Figure 3-7 Steps for Loading and Unloading 3-12...

  • Page 25: Loading Procedure For 40' Containers

    3-12.5 Bring the trailer back to road position using same procedure as Section 3-11.7 thru 3-11.9. 3-12.6 Connect chains on undercarriage to rear container corner castings. 3-12.7 Use chain binders to tighten the chain from undercarriage to container (See Figure 3-8).

  • Page 26: General Unloading Procedure

    3-13.7 Disconnect winch cable from container 3-13.8 Pull undercarriage forward which will chain harness and get cable out of way of pull container onto trailer farther. Pull con- container coming forward. tainer on until chain harness goes into hold- downs at front of trailer. Pin container har- ness to hold-downs with pin provided (See Figure 3-9).
  • Page 27 3-14.1 Practice all standard industrial safety WARNING standards (See Figure 3-7). 3-14.2 Park towing vehicle and trailer on rela- tively level ground. WHEN REMOVING LOAD, INSURE 3-14.3 Set truck parking brakes. THAT THE LOAD I S STEERING 3-14.4 Engage the P.T.O. or start the hydraulic STRAIGHT SO IT DOES NOT MANEU- power engine.

  • Page 28: Unloading Procedure For 20' And 40' Containers

    3-15 UNLOADING PROCEDURE FOR 20’ AND 40’ CONTAINERS WARNING 3-15.1 Read general unloading procedures first to become familiar with how to operate the MAKE SURE NOTHING IS BEHIND THE trailer. The unloading of containers is similar TRAILER FOR SEVERAL FEET IN to unloading other loads.

  • Page 29: Auxiliary Hydraulic Power Engine Operation

    3-16 AUXILIARY HYDRAULIC POWER ENGINE OPERATION 3-16.1 The Hydraulic Power Supply Engine is 3-16.2 The Engine Ignition Switch, Choke and used to power the hydraulic functions, should Throttle are on the Engine Control Panel the truck not be equipped with hydraulic mounted on the drivers side by the hydraulic hookups.
  • Page 30 Figure 3-12 Rear Impact Guard System 3-18...

  • Page 31: Rear Impact Guard System

    3-17 REAR IMPACT GUARD SYSTEM Vehicle standards FMVSS No. 224, Rear Im- The standard also specifies minimum force pact Protection, requires all semitrailers manufac- and energy absorption requirements for the guard. tured after January 26, 1998 shall be equipped A DOT decal certifies that the guard meets FMVSS with a rear impact guard certified by the manufac- No.

  • Page 32: Bleeding And Adjusting The Brakes

    3-18 BLEEDING AND ADJUSTING THE BRAKES 3-18.1 It is typically much easier to bleed the 3-18.6 Immerse the free end of the plastic tub- brakes with two people working together. ing in a clean container partially filled with 3-18.2 Special care must be taken to insure brake fluid.

  • Page 33: Installation And Adjustment Of Electronic Brake Control

    3-18.17 Tighten the bleeder screw, turn off the WARNING electric/hydraulic unit, and remove plastic tubing from the bleeder screw. Bleeding of the wheel cylinder/caliper is now complete. FAILURE TO PROPERLY ADJUST THE 3-18.18 Refill the electric/hydraulic unit with TRAILER BRAKES AND TO PROPERLY brake fluid.
  • Page 34 Figure 3-14 Mounting Bracket Installation Figure 3-15 Brake Control Components 3-19.1 Installation 3-19.2 Leveling the Sensor IMPORTANT IMPORTANT THE BRAKE CONTROL MUST BE MOUNTED THIS BRAKE CONTROL IS ACTIVATED BY IN- FROM -20 NOSE DOWN TO 70 NOSE UP. ERTIA AND REQUIRES THE LEVEL TO BE SET FAILURE INSTALL BRAKE...
  • Page 35 IMPORTANT RANGE OF ADJUSTMENT FOR THE LEVEL KNOB FROM DIM ORANGE TO DIM RED IS 20 DEGREES OF ROTATION. 3-19.3 Release brake pedal. IMPORTANT WHEN THE BRAKE CONTROL IS LEVELED PROPERLY THERE WILL BE VERY LITTLE CURRENT FLOWING THROUGH THE CIRCUIT IN A STATIC STATE WITH THE FOOT PEDAL DEPRESSED.

  • Page 36: Radio Remote Control Operation

    IMPORTANT NOT ALL TRAILER BRAKES WILL LOCK UP ALWAYS WARM THE TRAILER’S BRAKES DUE TO VARIOUS CONDITIONS. BEFORE SETTING POWER. WARM TRAILER BRAKES TEND TO BE MORE RE- WHEN THE LEVEL AND POWER ARE SET SPONSIVE THAN COLD BRAKES. TO WARM CORRECTLY, YOU SHOULD FEEL UNIFIED TRAILER BRAKES, DRIVE A SHORT DISTANCE BRAKING BETWEEN THE TRAILER AND TOW...

  • Page 37: Cold Weather Operation

    3-21 COLD WEATHER OPERATION 3-21.2 During any extended stop period, nei- 3-21.1 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 39: Maintenance And Lubrication

    MAINTENANCE AND LUBRICATION DANGER This section contains instructions necessary for proper maintenance of the semitrailer. The 341 OPERATING THE TRACTOR OR SEMI- semitrailer is designed for years of service with TRAILER WITH DEFECTIVE, BROKEN minimal maintenance. However, proper mainte- OR MISSING PARTS MAY RESULT IN nance is important for durability and safe operation SERIOUS INJURY OR DEATH;...
  • Page 40 Figure 4-1 Lubrication Points LUBE SEASON BRAND AND PRODUCT (WEIGHT AND/OR TYPE) AMOCO EXXON PHILLIPS TEXACO ALL YEAR Rycon MV HDX Plus 10W Mangus Oil Rando HD-AZ A KV 5W-20 SUMMER Permagear EP 460 Spartan 460 Phil Gear Lube 460 Meropa 460 SAE 140 SAE 140...
  • Page 41 See Tables 2-1 and 2-2 (General and Hydraulic Fitting Torque Charts) for correct torque. c. See Table 4-1 (Lube Specification Chart) for recommended lubricant. d. Call Landoll Customer Services for procedures to replace. e. See Serial Number Plate on the front of the semitrailer for proper inflation requirements.
  • Page 42 ENGINE MAINTENANCE SCHEDULE OPERATION AFTER EACH CYCLE OF INDICATED HOURS 100 200 500 1000 Inspect Engine Generally Check Oil Level Service Air Cleaner Element And Element Wrapper Change Crankcase Oil (20 hp engine) Change Crankcase Oil (24 hp engine) Replace Oil Filter Check Battery Electrolyte Level Clean Cooling Fins Replace Air Cleaner Element...

  • Page 43: Maintenance Procedures

    4-2 MAINTENANCE PROCEDURES WARNING 4-2.1 Tools and Equipment. Tools, equip- ment, and personnel normally found in a fa- DO NOT ALLOW ALUMINUM BRIGHTE- cility capable of making truck repairs will be adequate for maintenance of the semitrailer. NER OR OTHER ACID COMPOUNDS No other special tools or equipment should TO CONTACT HYDRAULIC HOSES.
  • Page 44 Figure 4-2 341 Trailer Wiring Diagram...
  • Page 45 LEFT TAIL, RED SOLENOID VALVES DS10 LEFT TURN STOP/TAIL, RED WINCH IN DS11 LEFT TURN, STOP/TAIL, RED WINCH OUT DS12 LICENSE PLATE LIGHT TILT UP DS13 IDENTIFICATION RIGHT, RED TILT DOWN DS14 IDENTIFICATION LEFT, RED Figure 4-3 341 Trailer Wiring Parts List...
  • Page 46 Figure 4-4 Truck Wiring Diagram...

  • Page 47: Hitch, Frame, And Deck

    4-3 HITCH, FRAME, AND DECK 4-3.1 Repairing Structural Defects If any structural defect is found, the fault must be corrected before further use of the vehicle. To continue usage could endanger the semitrailer, its load, personnel, traffic, and properties. Inspect the deck daily for broken or missing planks or missing attachments.

  • Page 48: Suspension Maintenance

    Twisted springs or to trained service personnel. If the bushings cocked hangers will cause uneven spring need to be replaced contact a Landoll author- contact with wear pad and will result in exces- ized service center or the Landoll factory for sive wear on the spring suspension.
  • Page 49 Figure 4-5 Examples of Camber Figure 4-6 Checking Axle for Bend 4-11...

  • Page 50: Electric/Hydraulic Brake System Maintenance

    Figure 4-7 Checking Axle Alignment a. Manual Alignment Procedure 6. Set D about 1/8" shorter than D1 to insure 1. Position semitrailer on a firm and level proper trailer tracking on slope of road. surface. Insure that the undercarriage is in 7.

  • Page 51: Hub And Drum Maintenance

    4-9 HUB AND DRUM MAINTENANCE 4-9.1 Clean and inspect the brake drums 4-9.3 Replacement of the brake drum is re- whenever relining the brakes. To be suitable quired if any of the following conditions exist: for further service, the brake drum should a.
  • Page 52 Figure 4-8 Outboard Mount Hub and Drum m. Install the hub cap with the proper gasket. Place the hub or wheel over the axle spindle Tighten the cap screws of the hub cap to 15 being careful to align the hub bore with the to 20 ft-lbs.

  • Page 53: Wheel Bearing Lubrication And Adjustment

    4-10 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 54: Tire Maintenance

    Fig. 4-9 Tire Inflation Examples 4-11 TIRE MAINTENANCE 4-11.1 4-11.2 Tire Inflation. Tire inflation will cause Tire Matching. Both tires on the same tire to ground contact characteristics as spindle must be the same size in order to shown in Figure 4-9. Tire inflation should be properly distribute the load and braking forces between them.
  • Page 55 Figure 4-12 Mounting Tires and Wheels 4-11.3 Mounting Tire and Wheel c. Install the inner capnuts on the studs and a. Make sure that all mounting surfaces are tighten to fifty foot-pounds using the se- clean and free of rust, dirt or paint. A wire quence illustrated in Figure 4-13.

  • Page 56: Hydraulic Engine Package

    f. Install the outer capnuts and tighten to 50 foot-pounds using the sequence in Figure 4-13. Then tighten to full torque of 450 to 500 foot-pounds using the same sequence. g. Torque will drop after the first 50 to 100 miles of operation.

  • Page 57: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Troubleshooting should be performed by a trained technician. Landoll Corporation is not responsible for equipment that is improperly maintained. Contact an authorized Landoll Service center for servicing. 5-1 ELECTRICAL Most electrical system problems show up as a burned out light or fuse, or inoperative electrical compo- nent.
  • Page 58 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. For maintenance procedures, see Sections 4-6, 4-9, 4-10, and 4-11. SYMPTOM PROBLEM: REMEDY VIBRATIONS WHILE DRIVING...
  • Page 59 TIRES - WHEELS - SUSPENSION (CONTINUED) SYMPTOMS PROBLEM: REMEDY BENDING OR WARPING Curb-hopping or potholes: adjust turning practices and adjust speed accordingly with road conditions. Improper tightening sequence: follow proper tightening se- quence. (See Figure 4-13.) BROKEN STUDS* Over tightening: use correct torque when mounting. Under torque: Use correct torque and tightening sequence when mounting.
  • Page 60 ELECTRIC/HYDRAULIC BRAKE AND BRAKE DRUM (CONTINUED) SYMPTOM PROBLEM: REMEDY NO BRAKES Broken or Kinked Brake Line: repair or replace. Severe Underadjustment: adjust brakes. Malfunctioning Actuation System: See Section 5-4. WEAK BRAKES Brake Adjustment Not Correct: manual adjust brakes automatic make several reverse stops. Excessively Worn Brake Linings: replace shoe and lining.
  • Page 61 5-5 TEST FOR ELECTRIC/HYDRAULIC BRAKE ACTUATORS The purpose of this section is to determine whether or not the unit needs to be repaired, or if there is another cause for the malfunction. THIS TEST IS IMPORTANT FOR THE FOLLOWING REASONS: ·...
  • Page 62 5-5.4 TESTING BREAK-A-WAY CIRCUIT a. Leave the sold white wire connected to the negative (-) terminal of the battery. b. Connect only the blue and white striped wire to the positive (+) terminal of the battery. c. The motor should run and the unit should pressurize. d.
  • Page 63 5-6 TROUBLESHOOTING IN-CAB ELECTRONIC BRAKE CONTROLLER For installation and adjustment of electronic brake controller, see Section 3-19. TOW VEHICLE CONNECTED TO Corrosion on trailer plug contact TRAILER, NO GREEN LIGHT Loose POWER or GROUND connection TOW VEHICLE CONNECTED TO TRAILER, LIGHT IS GREEN. WHEN MANUAL SLIDE KNOB IS ACTIVATED: POWER set at or near minimum.
  • Page 64 5-7 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. SYMPTOM PROBLEM: REMEDY SEMITRAILER LOCKED IN...
  • Page 65 SYSTEM OPERATES TOO FAST Engine running too fast: reduce engine speed. See Landoll Dealer. HYDRAULIC SYSTEM (CONTINUED) SYMPTOM PROBLEM: REMEDY OVER HEATING OF Incorrect, low, dirty oil: use recommended oil. Fill reservoir OIL IN SYSTEM with clean oil. Replace filter.
  • Page 66 NOTES: 5-10...

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