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Landoll 317D, Operator'S Manual

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ii

F-486-1011 Edition

Rear Impact Guard System

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-25

Anti-Lock Brake System (ABS)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-25

Cold Weather Operation

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-26

Hot Weather Operation

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-26

4

Maintenance and Lubrication

Maintenance Schedule

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1

Inspection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Maintenance Procedures

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3

Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Gooseneck, Frame, And Deck

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4

Repairing Structural Defects  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Hydraulic System

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4

General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Hydraulic Engine Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Electrical System

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-7

Suspension Maintenance

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-11

Air Ride Suspension  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Air Ride Height Adjustment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Alignment

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-13

Wheel Alignment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . 4-13
Axle Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Manual Alignment Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Air Ride Suspension Axles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Brake System Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-16

General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Spring Air Brake Chambers (30/30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Caging the Power Spring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Removal  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Air Brake Chambers (Type 30)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Tandem Relay Valve Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Brake Assembly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Brake Adjustment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Disassembly for 12-1/4” X 7-1/2” Brakes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Reassembly for 12-1/4” X 7-1/2” Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Disassembly for 16-1/2” x 7" Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Reassembly for 16-1/2 x 7" Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Automatic Slack Adjusters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Operational Check  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Replacing Slack Adjuster  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Adjusting Slack Adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Hub and Drum Maintenance

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-24

Summary of Contents for 317D

Page 1: ...F 486 1011 10 2011 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM Model 317D 318D Trailer Operator s Manual...

Page 2: ......

Page 3: ...ecting Tractor Services to the Semitrailer 3 5 Tractor and Semitrailer Check Out 3 5 Towing the Semitrailer 3 7 Parking the Trailer 3 8 Uncoupling Towing Vehicle from Semitrailer 3 9 Trailer Tilt Leve...

Page 4: ...1 Air Ride Height Adjustment 4 11 Alignment 4 13 Wheel Alignment 4 13 Axle Alignment 4 15 Manual Alignment Procedure 4 15 Air Ride Suspension Axles 4 15 Brake System Maintenance 4 16 General 4 16 Spri...

Page 5: ...or String Method 4 27 Mounting Tire and Wheel 4 28 Winches 4 29 Dock Levelers 4 32 Disassembly Assembly Procedure 4 32 Leg 4 32 Stabilizer Leg Check Valve 4 32 Crank Landing Gear 4 34 5 Troubleshootin...

Page 6: ...iv F 486 1011 Edition...

Page 7: ...ance will void your warranty 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 888 527 3909 CHAPTER 5 is a tr...

Page 8: ...e 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 m...

Page 9: ...UM CAPACITY IS ONE HALF FRAME CAPACITY LISTED ABOVE GOOSENECK HYDRAULIC TILT KING PIN SETTING MODEL 317D 18 or 24 Standard is 24 MODEL 318D 26 UNDERCARRIAGE TRAVEL LOW LOAD ANGLE 14 0 GROUND LOAD ANGL...

Page 10: ...2 2 F 486 1011 Edition STANDARD SPECIFICATIONS ELECTRICAL HOOKUP 7 WAY CONNECTOR AIR HOOKUP COLOR CODED GLAD HANDS MODEL 317D 318D...

Page 11: ...GREASED THREADS 250 FT LBS DRY THREADS 500 FT LBS SHOCK ABSORBER MOUNTING 150 FT LBS AIR SPRING MOUNTING 1 2 35 FT LBS 3 4 35 FT LBS WHEEL FASTENERS ALL MODELS OUTER SPINDLE NUTS 250 400 FT LBS PILOT...

Page 12: ...62 80 100 1 2 20 40 50 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...

Page 13: ...FOOT POUNDS PARKER BRAND FITTINGS Dash Size 37 Degree JIC O Ring ORS O Ring Boss ORB 4 11 13 15 17 13 15 5 14 16 21 23 6 20 22 34 36 25 29 8 43 47 58 62 40 44 10 55 65 100 110 57 5 62 5 12 80 90 134...

Page 14: ...2 6 F 486 1011 Edition STANDARD SPECIFICATIONS...

Page 15: ...m ABS The Anti Lock Brake System of the semitrailer is constant powered by the auxiliary blue circuit of the seven way electrical connector with backup power from the stop lamp red circuit and ground...

Page 16: ...S FRONT SIDE MARKER ENGINE CONTROLS OPTION HYDRAULIC CONTROLS LANDING GEAR HANDLE WINCH LOWER DECK HYDRAULIC CONTROLS INSTRUCTION DECAL LOWER DECK DOCK LEVELER SELECTOR OPTION REMOTE RECEPTACLE OPTION...

Page 17: ...t tractor parking brake 2 Check the semitrailer king pin plate height The king pin plate should be the same height to slightly lower than the latch area of the fifth wheel plate of the towing vehicle...

Page 18: ...contacts the front of the king pin plate on the semitrailer and slips under it Continue backing until the fifth wheel coupler locks onto the semitrailer kingpin CAUTION 4 Verify the vehicle coupling i...

Page 19: ...eg with a park stand retaining pin in the full up position before transporting CAUTION b For crank landing gear retract landing gear by turning hand crank on control panel counterclockwise Use low gea...

Page 20: ...6 1011 Edition OPERATING INSTRUCTIONS Figure 3 4 Hydraulic Controls LANDING GEAR HANDLE FRONT SIDE MARKER ENGINE CONTROLS HYDRAULIC LEVERS 3m410 011099 DOCK LEVELER SELECTOR REMOTE RECEPTACLE HYDRAULI...

Page 21: ...n after activating brakes a couple of times Set parking brake and carefully remove all wheel chocks Set emergency brake and try pulling forward The semitrailer wheels must not rotate If semitrailer br...

Page 22: ...requires a wide swing to prevent curb hopping and to allow the semitrailer wheels to clear any obstacle on the inside of the corner 4 To stop use a gradual and smooth application of brakes If grabbing...

Page 23: ...he semitrailer WARNING WARNING Trailer Tilt Lever The TRAILER TILT lever is located on the drivers side of the semitrailer under the outer frame beam See Figures 3 1 and 3 4 It has three positions Axl...

Page 24: ...fully forward CAUTION WARNING WARNING IMPORTANT Maximum angle is only intended if required for unloading non powered products and to transfer load to tractor Transfer load to tractor by raising deck a...

Page 25: ...the bottomed out Hydraulic Tilt Cylinders Approximately 2 5 seconds Hold AXLE CONTROL lever in the transport position until hydraulic system works against the fully extended Hydraulic Axle Cylinder A...

Page 26: ...3 12 F 486 1011 Edition OPERATING INSTRUCTIONS Figure 3 5 Steps for Loading and Unloading...

Page 27: ...rriage forward out of pockets five to eight feet or just behind the center of gravity of the loaded semitrailer This is to insure that the trailer does not rock back Actual center of gravity will relo...

Page 28: ...See Trailer Tilt Lever on page 3 9 and AXLE CONTROL lever See Axle Control Lever on page 3 9 alternate between tilting the front of the bed up to full tilt position and moving undercarriage to the re...

Page 29: ...ir fitting Figure 3 7 Air Hydraulic Kickout 1 The winch is not designed or intended to be used for lifting or moving people Using it this way can cause serious injury or death 2 Never attempt to disen...

Page 30: ...io remote control is available See Figure 3 10 2 The wireless radio remote has six momentary push button switches that operate the functions as labeled on the hand held remote 3 Specifications RF 902...

Page 31: ...above f The red LED will stay on while charging and when the charge is completed the green LED will stay on g It will take longer to charge if the transmitter is on during charging Figure 3 10 Remote...

Page 32: ...3 18 F 486 1011 Edition OPERATING INSTRUCTIONS Figure 3 11 Dock Leveler Operation...

Page 33: ...o level adjust the semitrailer bed IMPORTANT Be sure to retract the dock levelers when finished Push the dock leveler controls in at the same time to retract the dock leveler legs and lower the semitr...

Page 34: ...Hydraulic Power Supply Engine See Figure 3 12 This switch has three positions 3 The HYDRAULIC POWER SUPPLY ENGINE CHOKE is located by the Engine Ignition Switch on the driver s side of the semitrailer...

Page 35: ...te over choking 8 To adjust the speed turn the throttle control in or out as needed until the engine runs smoothly at a speed capable of withstanding use of the hydraulic controls The hydraulic contro...

Page 36: ...3 22 F 486 1011 Edition OPERATING INSTRUCTIONS Figure 3 13 Front Extension Bulkhead CHAIN RACK BULKHEAD BULKHEAD SIDE BAR 1 4 X 2 COTTER PIN LH BULKHEAD EXTENSION 1 X 5 1 8 PIN m128136 op...

Page 37: ...most pin from the bracket Lower the extension to a horizontal position Replace the front most pin in its new position To use the extension as a bulkhead simply return the extension to its original pos...

Page 38: ...3 24 F 486 1011 Edition OPERATING INSTRUCTIONS Figure 3 14 Rear Impact Guard and Anti Lock Brake System...

Page 39: ...equipped with an anti lock brake system that controls the wheels of at least one axle of the trailer Wheels on other axles of the trailer may be indirectly controlled by the anti lock brake system NHT...

Page 40: ...g 3 Check all structural fasteners air system fittings gaskets seals and bearings for looseness that can develop due to contraction with cold Do not over tighten 4 Check tire inflation Tire inflation...

Page 41: ...t the problem before using the tractor or trailer 2 Use the Troubleshooting Guide on page 5 1 to check for SYMPTOMS and PROBLEMS of any trailer system not functioning correctly or where wear distortio...

Page 42: ...AGE OIL RESERVOIR 1 WINCH 12 000 LB ONLY 3 WINCH CABLES 4 WINCH GEAR CASE 2 VIEW A A SLACK ADJUSTERS CAMSHAFT BUSHINGS CAM FOLLOWERS REAR ROLLER 3 HUB OIL 5 BOTH SIDES KINGPIN HINGE 3 PIVOT TUBE 3 KIN...

Page 43: ...irits paint thinner or its equivalent to remove grease and oil from all parts of the trailer Rinse degreasing solution off with cold water 3 Inspect semitrailer for cause of any reported troubles WARN...

Page 44: ...power hydraulic tank weekly or after any leakage See Table 4 1 for proper hydraulic oil Check the hydraulic oil level with hydraulic cylinders in the retracted position and the hydraulic pump disenga...

Page 45: ...ON WEAR I I f WHEEL LUG NUTS I T I I T b SUSPENSION ALIGNMENT I I UNDERCARRIAGE ROLLERS L 3 c HYDRAULIC OIL I I R 1 c HYDRAULIC FILTER R R HOSES I I R WINCH GEAR CASE I I 2 c I Inspect R Replace T Tig...

Page 46: ...engines X4 CHECK VALVE CLEARANCE LP and natural gas conversion engines X4 CHECK VALVE CLEARANCE extended service life engines X4 CLEAN CARBON AND LEAD DEPOSITS cylinder head X4 NOTES 1 Check for fuel...

Page 47: ...corrosion neutralized and the terminals resealed protected and insulated 4 Fuse or circuit breaker burn out or blow out usually indicates an electrical short circuit although a fuse can occasionally...

Page 48: ...4 8 F 486 1011 Edition MAINTENANCE AND LUBRICATION Figure 4 2 317D 318D Wiring Diagram 317c elec...

Page 49: ...ote control schematic ORANGE AXLE AHEAD OUTPUT YELLOW AXLE BACK OUTPUT BROWN WINCH IN OUTPUT BLUE WINCH OUT OUTPUT GREEN TILT UP OUTPUT WHITE TILT DOWN OUTPUT BLACK GROUND RED POWER 9 TO 30 VDC 9 TO 3...

Page 50: ...R YELLOW J9 ABS LAMP CONNECTOR DS10 MID RIGHT SIDE MARKER YELLOW J10 ABS ECU VALVE CONNECTOR DS11 LEFT REAR SIDE MARKER RED J11 GRND CONN TO SOLENOID VALVES DS12 RIGHT REAR SIDE MARKER RED J12 POWER A...

Page 51: ...be empty with the kingpin at operating height and have air supplied to the trailer 2 Disconnect linkage at the control arm and raise control arm to the up position raising the trailer until a block c...

Page 52: ...again until the proper air ride height is achieved 12 Check the air ride height periodically and adjust as needed CAUTION 13 Should the front and rear axle suspension air spring E not be inflated or...

Page 53: ...point end against the inner and outer wheel bearing surfaces of the spindle being checked and the other point on the inner bearing surface on the other spindle See Figure 4 5 3 Move the axle gauge an...

Page 54: ...4 14 F 486 1011 Edition MAINTENANCE AND LUBRICATION Figure 4 6 Checking Axle Alignment Figure 4 7 Examples of Camber...

Page 55: ...rts of the suspension or axles must be replaced immediately Air Ride Suspension Axles The air ride suspension is aligned and adjusted at the factory and it should not be necessary to align the axles I...

Page 56: ...emergency chamber or spring chamber Service brake chambers should be disassembled and cleaned at 50 000 miles or yearly The diaphragm and any marginal parts should be replaced When replacing the servi...

Page 57: ...ce lines for proper reinstallation and disconnect from the brake chamber 6 Remove the brake chamber from the axle brackets Installation 1 CAGE THE POWER SPRING following the steps outlined in Caging t...

Page 58: ...indicates a leak Locate the source of the leak and repair before using the semitrailer Tandem Relay Valve Maintenance Every 3600 operating hours 100 000 miles or yearly the Relay Emergency Valve shoul...

Page 59: ...MAINTENANCE AND LUBRICATION 4 19 Figure 4 9 Axle and Brake Assembly...

Page 60: ...s equipped with automatic slack adjusters which compensate for brake lining wear and keep brakes adjusted Brakes should not be adjusted manually except when relining brakes Disassembly for 12 1 4 X 7...

Page 61: ...ower cam roller Lift the top shoe and take out the top cam roller 6 Lift out the shoe retractor spring which is now free of tension 7 Swing the lower shoe back approximately 180o to relieve the tensio...

Page 62: ...release observe rotation of the adjustment hex attach a wrench on the hex to make this movement easier to see This rotation indicates that an excessive clearance condition has been determined by the...

Page 63: ...nd through the clevis more than 1 16 remove clevis and cut rod to length 13 If the push rod is not fully engaged in clevis body install a new push rod cut to length 14 Install the slack adjuster on th...

Page 64: ...r additional wear WARNING 3 Replacement of the brake drum is required if any of the following conditions exist a The brake drum is cracked b The brake surface is heat checked grooved or worn beyond th...

Page 65: ...r L right hand hubs should be installed on the curbside of the vehicle left hand L hubs should be installed on the driver side WARNING l Place the hub or wheel over the axle spindle being careful to a...

Page 66: ...le rotating wheel to insure proper seating of the bearings and cups in the wheel hub 6 Loosen the inner adjustment nut so that the wheel will turn freely 7 Retighten the inner adjustment nut to 50 ft...

Page 67: ...completed Remove any foreign objects from between duals 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...

Page 68: ...drum 3 Position the outer disc wheel over the studs being careful not to damage the threads Be sure the valve stems for both the inner and outer tire are accessible 4 Install the flange nut and tight...

Page 69: ...s 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 See Table 4 1 for lubrication specifications I...

Page 70: ...ROD SEAL PISTON ROD WEAR RING PISTON SEAL WEAR RING SNAP RING PISTON STABILIZER LEG CHECK VALVE ASSEMBLY SEE NEXT PAGE O RING BACKUP WASHER SNAP RING HEX HEAD CAP SCREW SPLIT LOCK WASHER HEAD RETAINE...

Page 71: ...Assembly STABILIZER LEG CHECK VALVE PRIOR TO 03 19 2010 STABILIZER LEG CHECK VALVE AFTER 03 19 2010 RETAINING PLUG BACKUP WASHER O RING CHECK VALVE SPRING POPPET PLUG SIDE SECTION FRONT SECTION FRONT...

Page 72: ...iver carefully remove spiral retaining ring Lift piston rod assembly out of cylinder tube 7 Using a large snap ring pliers remove heavy duty snap ring or remove the set screw Remove the piston cylinde...

Page 73: ...NION SHAFT 1 SPEED ROLL PIN COVER SCREW COVER 2 SPEED THRUST BEARING COLLAR INNER LEG ASSEMBLY STD SHOE SHOE AXLE OUTPUT SHAFT SPIRAL PIN INPUT SPUR GEAR BUSHING SHIFT HOUSING SHIFT HOUSING BOLT GREAS...

Page 74: ...gear d Then drive out output shaft by placing a punch through hole in output spur gear and driving the shaft out Now both items can be removed e Remove cap plug Shift input gear shaft to the high gea...

Page 75: ...MAINTENANCE AND LUBRICATION 4 35 Page Intentionally Blank...

Page 76: ...4 36 F 486 1011 Edition MAINTENANCE AND LUBRICATION...

Page 77: ...res Replace wire Ground wire loose Clean and tighten ground LIGHTS FLICKERING Wires shorted or loose Locate insulate replace or tighten Grounding through fifth wheel Locate broken ground wire tractor...

Page 78: ...LDERS Under inflation Increase inflation to correct PSI Check axle alignment See Tire Inflation on page 4 27 Overload Loads are above rated tire capacity DO NOT load above rated tire capacity SHOULDER...

Page 79: ...rs Replace defective parts Axles not parallel Re align axles AIR RIDE HEIGHT PROBLEMS TOO HIGH Axle to control valve linkage Readjust linkage Height Control Valve internal leak Repair or replace valve...

Page 80: ...bricate per Figure 4 1 Worn brake shoe bushing Replace bushing Brake drum distortion Replace drum Broken brake chamber spring Replace spring Brake chamber pushrod binding Re align brake chamber bracke...

Page 81: ...XCESSIVE LEAKAGE WITH BRAKES RELEASED Relay emergency valve leaking Repair or replace valve Leaking tubing or hose Replace defective part EXCESSIVE LEAKAGE WITH BRAKES APPLIED Relay emergency valve le...

Page 82: ...s Also check for operating conditions or loads that create severe or excessive brake applications BRAKES PULL TO EITHER SIDE Drums of different diameters Replace with drums of same diameter Foreign ma...

Page 83: ...Excessive load Check unit specifications for load limit See Standard Specifications on page 2 1 Slipping or broken pump drive Repair or replace couplings Check for alignment SYSTEM OPERATES ERRATICALL...

Page 84: ...y oil Replace clean or add oil as needed Water in oil Replace oil Air leaks Check suction line and component seals for suction leaks Replace defective parts NOISY PUMP Low incorrect foamy oil Replace...

Page 85: ...or error indication Self explanatory Check hydraulic system Clean or replace as necessary Check electrical system Tighten loose connections FUNCTIONS OPERATE INTERMITTENTLY Loose connector at the val...

Page 86: ...5 10 F 486 1011 Edition TROUBLESHOOTING GUIDE Page Intentionally Blank...

Page 87: ......

Page 88: ...lities Model 317D 318D Trailer Operator s Manual Re Order Part Number F 486 1011 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM F 486 1011 10 2...

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