Landoll 353 Operator's Manual
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Landoll 353 Operator's Manual

Bus hauler
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Model 353
Bus Hauler
Operator's Manual
LANDOLL CORPORATION
1900 North Street
Marysville, Kansas 66508
(785) 562-5381
800-428-5655 ~ WWW.LANDOLL.COM
F-554-0211
02/2011

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  • Page 1 Model 353 Bus Hauler Operator’s Manual LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM F-554-0211 02/2011...

  • Page 3: Table Of Contents

    Table of Contents Introduction Understanding Safety Statements ..........1-2 Standard Specifications Operating Instructions General .
  • Page 4 Unloading Procedure ............3-26 Remote Control .
  • Page 5 Brake System Maintenance ........... . . 4-16 General .
  • Page 6 F-554-0211 Edition...

  • Page 7: Introduction

    Chapter 1 Introduction This manual provides operating, servicing, and maintenance instructions for Model 353 Bus Hauler, manufactured by Landoll Corporation, Marysville, Kansas 66508. CHAPTER 1 gives basic instructions on the use of this manual. CHAPTER 2 gives product specifications for the trailer, including measurements and component specifications.

  • Page 8: Understanding Safety Statements

    Make sure you read and understand the information contained in this manual and on the machine signs (decals) before you attempt to operate or maintain this vehicle. The safety statements contained in this manual relate to the operation of the Model 353 Bus Hauler. F-554-0211 Edition...

  • Page 9: Standard Specifications

    Chapter 2 Standard Specifications MODEL 353 BUS HAULER 70,000 LB. DISTRIBUTED CAPACITY*: 50,000 LB. CONCENTRATED IN 10’ HYDRAULIC TILT GOOSENECK: 18” KING PIN SETTING: 215/75R17.5 TIRE SIZE: 21’-0” LOW LOAD ANGLE TRAVEL: 12-1/4” X 7-1/2” BRAKE SIZE: GROUND LOAD ANGLE: 5º...
  • Page 10 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 150 FT.-LBS. SHOCK ABSORBER MOUNTING AIR SPRING MOUNTING: 35 FT.-LBS. 1/2”...
  • Page 11 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 12 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 13: 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 14 STORAGE COMPARTMENT REMOTE UPPER DECK LOWER DROP DECK KINGPIN HYDRAULIC CONTROLS HITCH TUBE ASSEMBLY LANDING GEAR 353 frt trl terms Figure 3-1: Front Trailer Terminology REAR REAR SIDE MARKER ABS LIGHT STORAGE COMPARTMENT MECHANICAL WHEEL APPROACH PLATE LOWER DROP DECK...

  • Page 15: Electrical

    Set the parking brakes. HYDRAULIC PRESSURE (3/4” QUICK COUPLERS 2500 PSI MAX 17 GPM) HYDRAULIC RETURN 7-WAY ELECTRICAL RECEPTACLE EMERGENCY/ SERVICE/CONTROL SUPPLY GLADHAND GLADHAND 353 service hookups Figure 3-3: Service Hookups...

  • Page 16: Coupling Of The Tractor To The Semitrailer

    OPERATING INSTRUCTIONS Coupling of the Tractor to the  WARNING Semitrailer Failure to chock semitrailer wheels could allow  movement of the semitrailer resulting in serious DANGER personal injury, death, or damage to property in its path. Keep all personnel clear of front, rear, and sides of towing vehicle and semitrailer during coupling, component operations, and uncoupling.

  • Page 17: Connecting Tractor Services To The Semitrailer

    OPERATING INSTRUCTIONS Connecting Tractor Services to Tractor and Semitrailer the Semitrailer Check-Out 1. Connect the towing vehicle 7-pole electrical plug to  WARNING the electrical receptacle on the front of the semitrailer (See Figure 3-3.) Failure to properly set and check parking brake, and chock wheels when parking and during IMPORTANT storage, could allow movement of the...
  • Page 18 ENGINE CONTROL PANEL (OPTION) REMOTE/MANUAL CONTROL PANEL TOGGLE SWITCH LIGHT REMOTE MANUAL WINCH AIR 3-573-010438 TENSION RELEASE AIR WEIGH SCALE (OPTION) CLEARANCE LIGHT REMOTE ANTENNA OUTRIGGER/LIFT LEG HOUSING U/C LOCK INDICATOR PLACARD 353 hyd controls Figure 3-4: Hydraulic Controls F-554-0211 Edition...

  • Page 19: Towing The Semitrailer

    OPERATING INSTRUCTIONS Towing the Semitrailer 2. Activate the TRAILER TILT lever “DOWN” until the semitrailer is fully lowered (See “Trailer Tilt Lever” Driving the towing vehicle with the semitrailer coupled on page 3-9.) Hold semitrailer tilt lever in the down behind requires constant attention to the overall length of position until hydraulic system works against the the combination.

  • Page 20: Parking The Trailer

    OPERATING INSTRUCTIONS Uncoupling Towing Vehicle from 2. Monitor the air pressure gauge on the dash of the towing vehicle. Pressure should not fall below 80 psi Semitrailer at any time. 3. The semitrailer wheels track to the inside of the 1.

  • Page 21: Trailer Tilt Lever

    OPERATING INSTRUCTIONS Trailer Tilt Lever Lift Control Levers The TRAILER TILT lever is located on the driver’s side of The right hand and left hand LIFT CONTROL levers are the semitrailer outer frame beam (See Figures 3-1 and the fourth and fifth levers from the left (See Figures 3-1 and 3-4).
  • Page 22 OPERATING INSTRUCTIONS ROAD POSITION EXTEND OUTRIGGER ROTATION STOP BOLT AND WINGED NUT 9” TRAVEL EITHER WAY 18” TOTAL TRAVEL ANCHOR PIN FULLY EXTENDED FULLY RETRACTED FULLY RETRACTED FULLY EXTENDED 353 outrigger operation Figure 3-5: Hydraulic Outrigger Operation 3-10 F-554-0211 Edition...

  • Page 23: Hydraulic Outrigger Operation

    OPERATING INSTRUCTIONS Hydraulic Outrigger Operation The Hydraulic Outriggers are used to make the trailer ready to load and unload, allows the trailer to be shifted from side to side, and provides stability during the loading  DANGER and unloading process (See Figure 3-5.) 1.

  • Page 24: Winch Controls

    OPERATING INSTRUCTIONS Winch Controls Free Spool Clutch Operation (Warn Winch)  DANGER Warn Series XL winches are equipped with either a manual or air operated freespool clutch depending on the 1. The winch is not designed or intended to be model.

  • Page 25: Free Spool Clutch Operation (Dp Winch)

    OPERATING INSTRUCTIONS Free Spool Clutch Operation (DP 2. The air freespool clutch is operated by application of air pressure to the fitting supplied on the winch Winch) gearbox housing (See Figure 3-7.) The fitting is designed to accept 1/4” rigid plastic tubing. DP winches are equipped with either a manual or air operated freespool clutch depending on the model.

  • Page 26: Free Spool Clutch Operation (Braden)

    OPERATING INSTRUCTIONS Free Spool Clutch Operation (Braden) 1. The WINCH CLUTCH HANDLE (See Figures 3-8 and 3-9) 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 27: Ramp Storage And Use

    RAMPS IN STORAGE POSITION BOTH RAMPS USED AT SLOPE SINGLE TAPER RAMPS FOR LOADING HIGHER CLEARANCE ITEMS STRAIGHT AND TAPERED RAMPS FOR LOADING LOWER CLEARANCE ITEMS 353 ramps stored and in use Figure 3-10: Ramp Storage Location and Use Options 3-15...
  • Page 28 OPERATING INSTRUCTIONS WHEEL WELL FLAPS FLATTENED OUT AS WHEEL WELL POCKETS DURING LOADING FLAPS FLATTEN OUT AS PUSH-UP LIFT WELDMENTS COME IN CONTACT WITH THE GROUND WHEEL WELL FLAPS LOCATION DURING TRANSPORT #5 PIN SETTING SETTING WELL DEPTH #5 PIN SETTING LEVEL WELL TOP #5 1-1/8”...

  • Page 29: Mechanical Wheel Well Lifter Operation

    OPERATING INSTRUCTIONS Mechanical Wheel Well Lifter 1. Winch or drive the load onto the semitrailer. 2. Insure that the load is steering straight up onto the Operation semitrailer and does not maneuver off the side of the semitrailer. Continue until load center of gravity is just The wheel well pocket feature is unique.
  • Page 30 OPERATING INSTRUCTIONS INDICATOR ROD (SHOWN IN LOCKED POSITION) FRONT CAM FOLLOWER TRANSPORT LOCATION U/C LOCK-PIN SPRING COLLAPSED (SHOWN LOCKED) FRAME AND U/C EVEN AT TRANSPORT POSITION INDICATOR LOCK U/C LOCK PLACARD (SHOWN CYLINDER LOCKED, EXTENDED AWAY FROM WEB) lockpin locked Figure 3-12: U/C Lock Pin in Locked Position INDICATOR ROD (SHOWN UNLOCKED)

  • Page 31: Undercarriage Lock Pin Operation

    OPERATING INSTRUCTIONS U/C LOCK PIN HOLE INDICATOR ROD SPRING EXTENDED FRONT CAM (SHOWN UNLOCKED FOLLOWER TRANSPORT POSITION) INDICATOR LOCK POCKET PLACARD (SHOWN U/C LOCK PIN UNLOCKED, AGAINST CAM FOLLOWER (SHOWN UNLOCKED) WEB) ON FLANGE U/C LOCK FRAME AND U/C CYLINDER OFFSET DURING LIFTED POSITION lock pin unlock-lifted...
  • Page 32 OPERATING INSTRUCTIONS loading steps 1-6 Figure 3-15: Steps for Loading and Unloading 3-20 F-554-0211 Edition...

  • Page 33: Loading Procedure

    OPERATING INSTRUCTIONS Loading Procedure NOTE  With one arm fully retracted and the opposite arm fully DANGER extended, you have the full travel to side-shift 18" one direction. 1. The center of gravity of the load must be in front of the center of the undercarriage NOTE whenever the approach plate is not supported Recommended position of side-shift arms is 8"...
  • Page 34 OPERATING INSTRUCTIONS loading steps 7-11 Figure 3-16: Steps for Loading and Unloading 3-22 F-554-0211 Edition...
  • Page 35 OPERATING INSTRUCTIONS   WARNING WARNING In loading or unloading position, the approach The center of gravity of the load must be in front plate should be resting on the ground and the of the center of the undercarriage whenever the undercarriage fully forward.
  • Page 36 OPERATING INSTRUCTIONS WHEEL WELL PINNED HEIGHT POSITION loading steps 12-14 Figure 3-17: Steps for Loading and Unloading 3-24 F-554-0211 Edition...

  • Page 37: Securing The Load

    OPERATING INSTRUCTIONS Securing the Load 16. Lower lift leg cylinders to set tires back on the ground and locking the undercarriage back into its home transport location. The indicator rod will extend out  WARNING away from the web when complete (See Figure 3-17, step 12.) Do not allow slack in tiedowns.

  • Page 38: Unloading Procedure

    OPERATING INSTRUCTIONS Unloading Procedure 9. Move undercarriage fully forward using manual or remote control (note bumper will end up near 1. Practice all standard industrial safety standards. transition area of bottom outer flange). To maintain tire ground clearance during travel distance, it may 2.
  • Page 39 OPERATING INSTRUCTIONS 1. Lift tail of trailer off the ground fully extending lift leg  WARNING cylinders. As the tail of the trailer is lifted from the ground, the wells will settle back into their pinned When removing load, insure that the load is height position steering straight so it does not maneuver off the 2.

  • Page 40: Remote Control

    OPERATING INSTRUCTIONS Remote Control 2. The red BATTERY indicator starts blinking once every second when the battery voltage is low and the 1. A wireless eighteen function radio remote control is batteries require changing. provided (See Figure 3-18.) 3. The receiver module can identify problems with the 2.

  • Page 41: Outputs

    OPERATING INSTRUCTIONS Outputs Specifications: 1. Each of the outputs from the receiver module is designed with built-in short circuit and overload protection. The outputs can also detect a no-load or 900 MHz FHSS 10mW broken wire condition. Temperature: Operation: to +85 2.

  • Page 42: Hydraulic Power Supply Engine Operation (Option)

    OPERATING INSTRUCTIONS Hydraulic Power Supply Engine 3. The HYDRAULIC POWER SUPPLY ENGINE CHOKE is used to aid the starting procedure(See Operation (Option) Figure 3-19.) 1. The Hydraulic Power Supply Engine system is used to power the hydraulic functions, should the tractor not be equipped with hydraulic hookups.

  • Page 43: Air Ride Operation

    OPERATING INSTRUCTIONS Air Ride Operation 5. To start, open breather on gas tank. Pull throttle out halfway. Use choke as necessary. 1. Trailer air pressure must be maintained above 65 PSI 6. Turn the ignition key to the START position. The before operating.
  • Page 44 OPERATING INSTRUCTIONS LOCK PLATE NOTCHED LOCKING CHAIN HANGER PLATE COVER CHANNEL SIDE BAR HEX HEAD CAP SCREW EXTENSION HEX NUT BULKHEAD STABILIZING BRACE BUSHING SPACER BULKHEAD WELDMENT 1/2-13 X 1-1/2 HEX HEAD CAP SCREW SPACER LINK PIN 1/4 X 2 COTTER SUPPORT HAIR PIN...

  • Page 45: Front Extension/Bulkheads

    OPERATING INSTRUCTIONS Front Extension/Bulkheads 1. Optional bulkheads may come with or without chain racks. To remove a bulkhead, simply remove the support pins holding the bulkhead into the pockets on the semitrailer front and lift the bulkhead off. 2. To use the front extension as an extension, remove the front-most pin from the bracket.
  • Page 46 OPERATING INSTRUCTIONS CAUTION DECAL TO BE WARNING DECAL TO BE LOCATED ON REARWARD LOCATED ON REARWARD CURBSIDE OR REAR IMPACT CURBSIDE OF REAR IMPACT GUARD AS SHOWN. GUARD AS SHOWN. GROUND 4” (max.) 4” (max.) LEVEL 22” (max.) REAR VIEW OF TRAILER REAR SIDE MARKER REAR IMPACT GUARD -...

  • Page 47: Rear Impact Guard System

    OPERATING INSTRUCTIONS Rear Impact Guard System • Decal or lens marking with ABS to identify the lamp. • The lamp must illuminate one time whenever power Vehicle standards FMVSS No. 224, Rear Impact is supplied to the ABS. At any time the light remains Protection, requires all trailers manufactured after on when power is supplied there is a malfunction to January 26, 1998 shall be equipped with a rear impact...

  • Page 48: Pressure Guard System

    OPERATING INSTRUCTIONS Pressure Guard System Cold Weather Operation The pressure guard system routes air from the trailer’s 1. Cold weather causes lubricants to congeal, insulation supply tank through the axle, by way of vinyl tubing, to and rubber parts to become hard, which may lead to the hub caps and then to the tires.

  • Page 49: Maintenance And Lubrication

    Maintenance and Lubrication Lubrication This section contains instructions necessary for proper maintenance of the semitrailer. The 353 Bus Hauler is Figure 4-1 and Table 4-1 detail lubrication points and designed for years of service with minimal maintenance. intervals, method of application, and lubricant required, However, proper maintenance is important for durability and illustrate the location of each part to be lubricated.
  • Page 50 (NOT SHOWN) (6) U/C LOCK PIN (3) MECHANICAL WHEEL WELL (3) PIVOT TUBE (3) U/C LOCK PIN AND CABLE ROLLER (3) KINGPIN AND PLATE (3) HUB OIL (5) BOTH SIDES PARK STANDS (3) 353 lube Figure 4-1: Lubrication Points F-554-0211 Edition...

  • Page 51: Torque Values

    MAINTENANCE AND LUBRICATION Torque Values  WARNING Table 2-1 and Table 2-2 list torque values for standard hardware and hydraulic fittings. They are intended as a Paint thinner and other solvents are flammable guide for average applications involving typical stresses and toxic to eyes, skin, and respiratory tract.

  • Page 52: Gooseneck, Frame, And Deck

    If any cracks or breaks are found, 3. Check the engine oil each time before using. Oil level contact the Landoll factory for repairs. Inspect the deck should be maintained between the “L” and “F” marks daily for broken or missing planks or missing on the oil dip stick.
  • Page 53 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 54 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 55: Electrical System

    MAINTENANCE AND LUBRICATION Electrical System Remote Control 1. Maintenance of the electrical system consists of 1. Clean transmitter regularly with a damp cloth and inspection and minor servicing. Any wire, connection mild detergent. or electrical component showing signs of corrosion, 2.
  • Page 56 STOP TURN STOP TURN TAIL TAIL TAIL TAIL TAIL LICENSE TAIL LEFT RIGHT RIGHT LEFT LEFT LAMP RIGHT DS13 DS15 DS17 DS19 DS21 DS22 DS20 DS18 DS16 DS14 353 elect op Figure 4-3: 353 Bus Hauler Wiring Diagram F-554-0211 Edition...
  • Page 57 THIS SIDE OF TERMINAL STRIP. HANDLE SIDE BACK SIDE WIRE #’S WIRE #’S FUNCTION TILT DOWN WINCH AHEAD AXLE BACK LIFT LH DOWN LIFT RH DOWN SHIFT LH 353 remote control wiring SHIFT RH Figure 4-4: Remote Control Wiring Diagram...
  • Page 58 MAINTENANCE AND LUBRICATION 353 BUS HAULER 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...

  • Page 59: Suspension Maintenance

    5. Check the ride height to make sure it is correct. suspension. Consult Landoll Service Center if correct height cannot be obtained. 6. Loosen the 1/4” adjusting lock nut located on the adjusting block, allowing the control arm to move approximately 1 inch.
  • Page 60 MAINTENANCE AND LUBRICATION 7. Align the control arm linkage to the control arm lower bracket and re-tighten the 1/4" adjusting lock nut to 2-4 ft.lbs. The ride height valve should now be correctly adjusted. 8. Remove the locating pin. 9. The block can now be removed by using the height control valve as an improvised jack by disconnecting the control arm at the lower bracket and pushing the control arm to an “up”...

  • Page 61: Alignment

    MAINTENANCE AND LUBRICATION Figure 4-6: 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 62 MAINTENANCE AND LUBRICATION Figure 4-7: Examples of Camber Figure 4-8: Checking Axle Alignment 4-14 F-554-0211 Edition...

  • Page 63: Axle Alignment

    MAINTENANCE AND LUBRICATION Axle Alignment Air Ride Suspension Axles Proper axle to king pin alignment is necessary to obtain The air ride suspension is aligned and adjusted at the straight tracking. If axle alignment is off, “dog-tracking” factory and it should not be necessary to align the axles. occurs.

  • Page 64: Brake System Maintenance

    MAINTENANCE AND LUBRICATION Brake System Maintenance Spring Air Brake Chambers (30/30) Check for faulty units. Check the condensation holes on  the underside of the brake chambers to make sure they WARNING are open. The spring brake has two brake chambers, a 1.

  • Page 65: Caging The Power Spring

    MAINTENANCE AND LUBRICATION Caging the Power Spring Installation 1. Chock the trailer wheels. 1. CAGE THE POWER SPRING following the steps outlined in “Caging the Power Spring” on 2. Remove dust cap from spring brake chamber. page 4-17. 3. Remove the release bolt from it’s holding brackets 2.

  • Page 66: Air Brake Chambers (Type 30)

    TRAILER TO ROLL IF THE WHEELS ARE NOT  WARNING PROPERLY CHOCKED. Repair or replacement of the relay/emergency valve is a complex operation and should be performed by trained service personnel. Contact a Landoll authorized service center for servicing. 4-18 F-554-0211 Edition...
  • Page 67 MAINTENANCE AND LUBRICATION Figure 4-10: Axle and Brake Assembly 4-19...

  • Page 68: Brake Assembly Maintenance

    MAINTENANCE AND LUBRICATION Figure 4-11: Brake Lining Wear Brake Assembly Maintenance Reassembly for 12-1/4" X 7-1/2" Brakes 1. Install new camshaft bushing and seals into the The brake assemblies should be inspected and adjusted spider (See Figure 4-10.) every 2,000 miles or monthly. Examine the brake linings visually to locate the lining showing the greatest amount IMPORTANT of wear.

  • Page 69: Automatic Slack Adjusters

    MAINTENANCE AND LUBRICATION Automatic Slack Adjusters 5. The push rod stroke should be 1-1/2" to 2" with an 100 to 105 PSI service brake application. The semitrailer automatic slack adjusters provide the 6. Measure the movement of the push rod from the means for routine brake adjustment to compensate for completely released position to the applied position lining wear.

  • Page 70: Replacing Slack Adjuster

    MAINTENANCE AND LUBRICATION Replacing Slack Adjuster Adjusting Slack Adjuster 1. Chock wheels to prevent vehicle from rolling. 1. Rotate the manual adjuster clockwise until brake Release spring and service brake. Air chamber push shoes contact drum. rod must be fully released. 2.

  • Page 71: 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: 1. Clean and inspect the brake drums whenever relining a. The brake drum is cracked. the brakes. To be suitable for further service, the b.
  • Page 72 MAINTENANCE AND LUBRICATION Figure 4-13: Outboard Mount Hub and Drum m. Install the hub cap with the proper gasket. IMPORTANT Tighten the cap screws of the hub cap to 15 to 20 ft-lbs. of torque. Do not mix new cups with old cones or new cones with old cups.

  • Page 73: Wheel Bearing Lubrication And Adjustment

    MAINTENANCE AND LUBRICATION Wheel Bearing Lubrication And Adjustment Adjustment 1. With a drain pan under the hub cap, remove the hub cap assembly allowing oil to drain. With semitrailer sitting level, the oil level must be checked 2. Lift the wheel off of the ground. daily and maintained between the “ADD”...

  • Page 74: Tire Maintenance

    MAINTENANCE AND LUBRICATION Figure 4-14: Tire Inflation Examples Tire Maintenance Tire Inflation Tire inflation will cause tire to ground contact characteristics as shown in Figure 4-14. 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 75 MAINTENANCE AND LUBRICATION Figure 4-17: Mounting Tires and Wheels Figure 4-18: Stud Tightening Sequence 4-27...

  • Page 76: Mounting Tire And Wheel

    MAINTENANCE AND LUBRICATION Mounting Tire and Wheel Undercarriage Cable Adjustment 1. Make sure that all mounting surfaces are clean and 1. Slack may occur in the undercarriage cable. Slack free of rust, dirt or paint. A wire brush may be used to may occur if, as the trailer is being lowered into clean these surfaces (See Figure 4-17.) transport position, the tension on the undercarriage...
  • Page 77 MAINTENANCE AND LUBRICATION UNDERCARRIAGE CABLE TOP OF WINCH DRUM (ROUTED THRU TWO SUPPORTS) UNDERCARRIAGE CABLE TENSION ADJUSTMENT ROD BOTTOM OF WINCH DRUM (TORQUE TO 10FT/LB.) bu_manual_uc-cable Figure 4-19: Manual Undercarriage Cable Adjustment LOCK PIN UNDERCARRIAGE LOCK INDICATOR CABLE CABLE TENSION MECHANISM (TORQUE ADJUSTMENT ROD TO 10 FT/LB) bh_manual_uc_lock_tension...
  • Page 78 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 79: 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" dia punch. through grease fittings and is recommended at three Remove output cluster shaft.
  • Page 80 MAINTENANCE AND LUBRICATION 4-32 F-554-0211 Edition...

  • Page 81: 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 82: Tires - Wheels - Suspension

    TROUBLESHOOTING GUIDE Tires - Wheels - Suspension • “Hydraulic System” on page 4-4 • “Alignment” on page 4-13 Most tire, wheel, and suspension related problems are • “Hub and Drum Maintenance” on page 4-23 due to excessive loads, extreme conditions, and improper maintenance.
  • Page 83 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 4-18.) BROKEN STUDS* Over tightening Use correct torque when mounting (See “Standard Specifications”...

  • Page 84: Brakes

    TROUBLESHOOTING GUIDE Brakes For maintenance procedures, see “Brake System Maintenance” on page 4-16 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 85 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 86: Brake Drums

    TROUBLESHOOTING GUIDE Brake Drums • “Suspension Maintenance” on page 4-11 • “Alignment” on page 4-13 For maintenance procedures, refer the following • “Brake System Maintenance” on page 4-16 sections: • “Hub and Drum Maintenance” on page 4-23 • “Wheel Bearing Lubrication And Adjustment” on page 4-25 PROBLEM PROBABLE CAUSE...

  • Page 87: 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 88: 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 89: 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 90 TROUBLESHOOTING GUIDE Notes: 5-10 F-554-0211 Edition...
  • Page 92 Equipment from Landoll Corporation is built to exacting standards ensured by ISO 9001registration at all Landoll manufacturing facilities. Model 353 Bus Hauler Operator’s Manual Re-Order Part Number F-554-0211 LANDOLL CORPORATION 1900 North Street Marysville, Kansas 66508 (785) 562-5381 800-428-5655 ~ WWW.LANDOLL.COM Copyright 2010.

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