Landoll L20 Series Скачать руководство пользователя страница 43

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SYMPTOM

PROBLEM: REMEDY

SINGLE BRAKE DRAGGING OR LOCKED

Broken internal brake component:

Locate and re-

place broken part.

Flat spot on cam roller or cam shaft:

Replace and

lubricate.

Improper adjustment:

Adjust slack adjusters.

Spider bushing or cam bracket bushing binding:

Lubricate or replace bushing.

Improper lubrication:

Lubricate per Figure 4-.

Worn brake shoe bushing: Replace bushing.

Brake drum distortion:

Replace drum.

Brake chamber pushrod binding:

Realign brake

chamber bracket.

Air brake line loose or broken:

Tighten or repair.

BRAKES APPLY TOO SLOWLY

Brakes need adjusting or lubrication:

Adjust or lu-

bricate as needed.

Low air pressure in brake system (below 90 psi):

Check tractor air system.

Restricted tubing or hose:

Locate restriction and

remove.

Worn or broken relay valve:

Replace.

Call Factory or see qualified Trailer/Brake Techni-

cian

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 re-

move.

Tractor protection valve failure:

Troubleshoot trac-

tor air system.

Parking brakes locked:

Troubleshoot air system.

Moisture in air system:

Check air system.

BRAKES GRABBING

Grease on brake linings:

Reline brakes.

Brake rigging binds:

Align brakes or replace bent

parts.

Brake valve on tractor failed or worn:

Replace

valve.

Relay emergency valve failed or worn:

Replace

valve.

EXCESSIVE LEAKAGE WITH BRAKES APPLIED

Relay emergency valve leaking: Replace valve.

Leaking brake chamber diaphragm:

Replace brake

chamber.

Call Factory or see qualified Trailer/Brake Techni-

cian

Leaking tubing or hose:

Replace part(s).

EXCESSIVE WATER PRESENT IN BRAKE SYSTEM

Reservoir not drained often enough:

Drain reser-

voir daily.

BRAKE WILL NOT APPLY PROPERLY

Flat spot on cam roller or camshaft:

Replace and

lubricate.

5-4 BRAKES (FOR TRAILERS WITH ELECTRIC BRAKES)

For maintenance procedures, see

Section 4-7

5-3

Содержание L20 Series

Страница 1: ...MODEL L20 L24 L40 L50 SERIES TAG TRAILER OPERATOR S MANUAL 1900 NORTH STREET MARYSVILLE KANSAS 66508 785 562 5381 F 203 0503 05 03...

Страница 2: ......

Страница 3: ...MODEL L20 L24 L40 L50 SERIES TAG TRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i...

Страница 4: ...olved in individual problems be tween you your dealer or Landoll Manufacturing To contact NHTSA you may either call the Auto Safety Hotline toll free at 1 800 424 9393 or 366 0123 in Washington D C ar...

Страница 5: ...ULE 4 1 4 3 MAINTENANCE PROCEDURES 4 2 4 4 FRAME AND DECKS 4 2 4 5 ELECTRICAL SYSTEM 4 3 4 6 BRAKE SYSTEM MAINTENANCE FOR TRAILER WITH AIR BRAKES 4 3 4 7 BRAKE SYSTEM MAINTENANCE FOR TRAILER WITH ELEC...

Страница 6: ...IF NOT AVOIDED WILL RESULT IN DEATH OR SERIOUS INJURY WARNING WARNING INDICATES A POTENTIALLY HAZARDOUS SITUA TION WHICH IF NOT AVOIDED COULD RESULT IN DEATH OR SERIOUS INJURY CAUTION CAUTION INDICAT...

Страница 7: ...y IF YOU HAVE ANY QUESTIONS CONTACT LANDOLL CORPORATION 1900 NORTH STREET MARYSVILLE KANSAS 66508 or phone 785 562 5381 or 800 428 5655 or FAX 785 562 3240 SECTION 5 is a troubleshooting guide to aid...

Страница 8: ......

Страница 9: ...EE SPINDLE TORQUE BEARING ADJUSTMENT PAGE 2 4 GREASE ZERK CAM BUSHING SPIDER 5 8 15 8 CAM BRACKETS 3 4 AIR CHAMBER 12K 15K AIR BRAKE 50 55 5 8 11 HEX LOCK NUT 9K 10K U BOLT 006 038 00 110 130 5 8 11 S...

Страница 10: ...65 81 90 112 9 16 12 55 62 80 100 110 137 9 16 18 60 75 90 112 130 162 5 8 11 75 94 110 137 170 212 5 8 18 85 106 130 162 180 225 3 4 10 130 162 200 250 280 350 3 4 16 150 188 220 275 320 400 7 8 9 12...

Страница 11: ...146 75 85 16 115 125 202 218 109 121 20 160 180 248 272 213 237 24 185 215 303 327 238 262 32 250 290 310 340 LANDOLL CORPORATION HYDRAULIC FITTING TORQUE SPECIFICATIONS 37o JIC ORS ORB REV 10 97 THIS...

Страница 12: ...02 450 500 5 8 18 FLANGE NUT WHEELS 006 058 00 275 325 SPINDLE TORQUE BEARING ADJUSTMENT FOR 9K 15K AXLES 1 Install the bearing and washer into the hub Thread on the inner nut rotate the hub and tigh...

Страница 13: ...lve or by disconnecting the emergency glad hands 3 1 2 Air Brake System The air brake system of the semitrailer is oper ated from the towing vehicle after coupling The towing vehicle s air system must...

Страница 14: ...hand on the front of the trailer The tow ing vehicle s air hose couplings are attached and locked to the appropriate gladhands red emergency line to the gladhand with the EMERGENCY tag and the blue se...

Страница 15: ...3 3 Figure 3 3 Electrical Assembly For Trailer w Electric Brakes...

Страница 16: ...3 4 Figure 3 4 Electrical Assembly For Trailer w Air Brakes...

Страница 17: ...kes 3 3 4 Raise the landing gear parking stands and lock the hitch in place IMPORTANT KEEP BRAKES ENGAGED FOR REMAINDER OF HOOKUP CHECK OUT PROCEDURES AND FOR PARKING 3 4 CONNECTING TOWING VEHICLE SER...

Страница 18: ...must not be al lowed to push the towing vehicle or jackknif ing the trailer with the towing vehicle may re sult Application of the trailer brakes to keep the trailer in tow will help prevent this push...

Страница 19: ...nected 3 8 8 Pull towing vehicle away from the trailer 3 9 LOADING THE TRAILER 3 9 1 Practice all standard industrial safety standards Do not load any payload that will overload any component of the t...

Страница 20: ...ld weather malfunctions 3 11 2 During any extended stop period nei ther the service nor parking brake should be used as they can freeze up Use wheel chocks to secure the vehicle from moving 3 11 3 Che...

Страница 21: ...spect the towing vehicle the trailer and trailer parts periodically for damage or signs of pending failure Damaged or broken parts must be repaired or replaced at once Determine the cause of any bindi...

Страница 22: ...asing solution off with cold water c Inspect trailer for cause of any reported troubles d Scrape sand prime and repaint areas where finish is missing or where there is evi dence of corrosion e Replace...

Страница 23: ...ease wax and other coatings act as insu lators Replacement lamps must be equiva lent to the factory installed lamp 4 6 BRAKE SYSTEM MAINTENANCE FOR TRAILER WITH AIR BRAKES WARNING USE GREAT CARE IF WH...

Страница 24: ...ne port alignment for reassembly 3 CAGE THE POWER SPRING following the steps outlined in Section 4 6 2 a 4 Disconnect the slack adjuster from the connecting rod by removing the clevis pin See Figure 4...

Страница 25: ...h automatic slack adjusters which compen sate for brake lining wear and keep brakes adjusted Brakes should not be adjusted manually except when relining brakes b Disassembly for Brakes See Figure 4 3...

Страница 26: ...4 6 Figure 4 3 Axle and Brake Assembly...

Страница 27: ...means for routine brake adjustment to compen sate for lining wear Inspect slack adjusters every 2 000 miles to assure correct operation a Operational Check See Figure 4 4 1 Block wheels to prevent veh...

Страница 28: ...the air chamber 6 Swing the guide into the clevis until the appropriate slot totally engages 1 2 pin 7 Observe the guide pointer arrow If the guide pointer is above the clevis rotate clevis countercl...

Страница 29: ...hecks or other surface defects resulting from normal use a The maximum diameter cast into the back plate portion of the brake drum is the maxi mum diameter or discard diameter to which the brake drum...

Страница 30: ...dius on the hub If interference exists the hub will not be able to function properly j Install inner bearing cone and seal IMPORTANT DO NOT MIX NEW CUPS WITH OLD CONES OR NEW CONES WITH OLD CUPS k If...

Страница 31: ...ull mark Use 90 weight gear oil i Check hub oil level after the wheel has set level in one position for a few minutes to allow the oil to work into the bearings 4 11 WHEEL BEARING LUBRICATION AND ADJU...

Страница 32: ...mine the trailer for damaged suspension frame shocks linkage etc axle wheel bearings and wheels Proper wheel alignment and wheel bearing adjustment is essential for proper tire wear The simplest form...

Страница 33: ...nment Procedure 1 Position trailer on a firm and level surface Insure that the undercarriage is in the rear most position Eliminate any suspension binding due to sharp turns or unusual maneuvers 2 Det...

Страница 34: ...tween duals 4 15 2 Tire Matching Both tires on the same spindle must be the same size in order to properly distribute the load and braking forces between them The tire must be mounted on a rim and pro...

Страница 35: ...4 15 Figure 4 12 Mounting Tires and Wheels Figure 4 13 Stud Tightening Sequence...

Страница 36: ...reful not to damage the threads Be sure the valve stems for both the inner and outer tire are ac cessible d Install the flange nut and tighten to 50 foot pounds using the sequence in Figure 4 13 Then...

Страница 37: ...OR TYPE AMOCO EXXON PHILLIPS TEXACO 1 Lit multi purpose Grease Rondex Multi purpose Grease Phil Lube M W Grease MarFax All Purpose 2 Multi purpose 90 Gear Oil GTX 85 140 Phil Lube All purpose Gear SAE...

Страница 38: ...I I T b SUSPENSION T I T SUSPENSION ALIGNMENT I I BRAKE MAGNETS I BRAKE CONTROLLER I BREAKAWAY STSTEM O I Inspect O Test Operation R Replace T Tighten Adjust Torque L Lubricate C Clean For Trailers w...

Страница 39: ...NOTES 4 19...

Страница 40: ......

Страница 41: ...nected Self explanatory Voltage difference between trailer tractor Trac tor supply wire or circuit components too low capacity enlarge wire or component match bulbs with tractor voltage FUSE BLOW OUT...

Страница 42: ...Replace bushings Worn or loose wheel bearings Adjust or replace as needed Out of balance wheels and tires Balance wheels and tires RIM FAILURE CRACKING Overinflated tires Deflate tire to proper psi Hi...

Страница 43: ...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 r...

Страница 44: ...ken Wires Repair or replace Loose Connections Find and repair Faulty Ground Find and repair BRAKES PULL TO ONE SIDE Wrong Magnet Lead Wire Color Correct Incorrect Adjustment Adjust Grease or Oil on Ma...

Страница 45: ...SIDE Drums of different diameters Replace with drums of same diameter Foreign matter in drums Clean drums out ROUGH OR NOISY BRAKING ACTION Worn drums Pull drums and inspect for any of the following...

Страница 46: ......

Страница 47: ......

Страница 48: ...s Model L20 L24 L40 L50 Series Operator s Manual Re Order Part Number F 203 0503 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM F 203 0503 05 2...

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