Multiquip LT12D, LT12P Wheel Rims, Wheels, Bearings and Lug Nuts, Lug Nut Torque Requirements

Page 66

TRAILER GUIDELINES

Wheel Rims

If the trailer has been struck, or impacted, on or near the wheels, or if the trailer has struck a curb, inspect the rims for damage (i.e. being out of round); and replace any damaged wheel. Inspect the wheels for damage every year, even if no obvious impact has occurred.

Wheels, Bearings and Lug Nuts

A loose, worn or damaged wheel bearing is the most common cause of brakes that grab.

To check wheel bearings, jack trailer and check wheels for side-to-side looseness. If the wheels are loose, or spin with a wobble, the bearings must be serviced or replaced. Check inflation pressure weekly during use to insure the maximum tire life and tread wear. Most trailer axles are built with sealed bearings that are not serviceable. Sealed bearings must be replaced as complete units.

WARNING

Lug nuts are prone to loosen after initial installation, which can lead to death or serious injury. Check all wheel lug nuts periodically.

Lug Nut Torque Requirements

It is extremely important to apply and maintain proper wheel mounting torque on the trailer. Be sure to use only the fasteners matched to the cone angle of the wheel. Proper procedure for attachment of the wheels is as follows:

1.Start all wheel lug nuts by hand.

2.Torque all lug nuts in sequence. See Figure K. DO NOT torque the wheel lug nuts all the way down. Tighten each lug nut in 3 separate passes as defined by Table C.

NOTICE

NEVER use an pneumatic air gun to tighten wheel lug nuts.

Over-tightening lug nuts will result in breaking the studs or permanently deforming the mounting stud holes in the wheels.

3.Check to see if the lug nuts are tight after the first 10, 25 and 50 miles of driving and before each tow thereafter

Figure K. Wheel Lug Nuts Tightening Sequence

Table C. Tire Torque Requirements

Wheel Size

First Pass

Second Pass

Third Pass

FT-LBS

FT-LBS

FT-LBS

 

 

 

 

 

12"

20-25

35-40

50-65

 

 

 

 

13"

20-25

35-40

50-65

 

 

 

 

14"

20-25

50-60

90-120

15"

20-25

50-60

90-120

16"

20-25

50-60

90-120

Lights and Signals

Before each tow, check the trailer taillights, stoplights, turn signals and any clearance lights for proper operation.

Replace any broken or burned-out lamps as necessary. Check the wire harness for cuts, fraying or other damage. If it needs replacing, contact your dealer.

WARNING

Improper operating taillights, stoplights and turn signals can cause collisions.

Check all lights before each tow.

PAGE 66 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)

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Contents Models LT12D, LT12P This Manual Must Accompany the Equipment AT ALL TimesProposition 65 Warning Reporting Safety Defects NhtsaTable of Contents Specifications are subject to change without noticeSafety Information Safety Messagesfire extinguisher General SafetyLight Tower Safety first aid kitLamp Safety Engine Safety Before servicing equipmentFuel Safety Towing SafetyTransporting Safety Loading and Tie-Down on Flatbed TruckElectrical Safety Power Cord/Cable SafetyGrounding Safety Battery Safety Environmental SafetyLamp Footcandle Plot Lamp Footcandle PlotSpecifications Generator SpecificationsTrailer Specifications Engine Specifications Reference Letter Description Dimension DimensionsDimensions Length Mast Stowed Position Length Mast Deployed PositionGeneral Information Components Major Components Control Panel SideRear Control Panel Light CONTROL/BREAKERControl Panel Before Starting Indoor InstallationInspection Engine OIL CheckBattery Check Fuel CheckWipe up any spilled fuel immediately Coolant Cleaning the RadiatorAIR Cleaner FAN Belt Tension Operation in Freezing WeatherLocation of Female Connectors Starting the Engine Perkins OperationStarting the Engine Starting the Engine Lombardini/Deutz EnginesDeploying the Mast to Vertical Position Mast OperationOutriggers and Support Stands Raising the MastMast Operation Turning on the Lamps Lowering the MastStowing the Mast to Horizontal Position Rotating the MastNormal Shutdown Testing the 120 VAC Gfci ReceptacleApplying AN External Load Emergency ShutdownInspection/Maintenance MaintenanceBasic Inspection and Maintenance FrequencyGeneral Inspection Flushing OUT Radiator and Changing CoolantChanging OIL Check Cable WearReplacing Fuel Filter Servicingthe Mast RAISE/LOWER Cable SystemStorage Removal from Long Term StorageLower the mast to the horizontal resting position Maintenance Trailers Adjustable ChannelWheel HUB Adjustment Leaf Suspension Leaf Suspension ComponentsTroubleshooting Generator TroubleshootingSymptom Solution Engine Troubleshooting Symptom Possible Cause SolutionEngine revolution is not Lamp Troubleshooting Clean fixture When switch is first Checking voltage and ballast Turned onReplacement minimizes color differences Lamp starts slowly ARC does not strike Defective Lamp?Starting Lamp Troubleshooting GuideConnections Ballast RemovalLT12 Wiring Diagram S/N 902148 and below StatorBLK GRN WHT RED LT12 Wiring Diagram S/N 902149 to LT12 Wiring Diagram S/N 902149 to LT12 Wiring Diagram S/N 902626 and Above BLK BRN Blue RED WHT YEL GRN Perkins Engine Wiring Diagram Deutz Engine Wiring Diagram LT12 Control PANEL/IGNITION Wiring Diagram DEUTZ/LOMBARDINI SpecificTrailer Guidelines Common Causes for Loss of TrailerTrailer Towing Guidelines Driving Conditions Coupling to the TOW VehicleInoperable BRAKES, Lights or Mirrors Trailer Towing TipsTrailer VIN TAG Suspension System Electrical ConnectorTOW Vehicle Side View MirrorsCoupler Types Safety ChainsJackstand Ball Hitch CouplerLock washer and hitch frame Coupling theTrailer to theTow Vehicle Ball CouplerAttaching Safety Chain Connecting Trailer LightsUncoupling the Ball Hitch Pintle Hitch Coupler Pintle Coupler and Pintle HookTire Safety Unsafe Tires, Lug Nuts or WheelsCoupling Trailer to Tow Vehicle Pintle Coupler Tighten lug nuts before each tow Determining Load Limit of TrailerStep Be sure lug nuts are tight before each towDetermining Load Limit of Tow Vehicle Step Tire FundamentalsP indicates the tire is for passenger vehicles Uniform Tire Quality Grading Standards Utqgs Table A. Speed RatingLetter Rating Speed Rating Tire Repair Tire Safety TipsTable B. Tire Wear Troubleshooting Replacing Worn or Damaged TiresWheels, Bearings and Lug Nuts Lights and SignalsWheel Rims Lug Nut Torque RequirementsFigure L. Trailer to Tow Vehicle Wiring Diagram HERE’S HOW to GET Help
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