Multiquip LT12D, LT12P operation manual Pintle Hitch Coupler, Pintle Coupler and Pintle Hook

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TRAILER GUIDELINES

PINTLE HITCH COUPLER

A pintle eye coupler (Figure F) connects to a pintle-hook hitch that is located on or under the rear bumper of the tow vehicle. This system of coupling a trailer to a tow vehicle is sometimes referred to as a “lunette eye, tow ring or G.I. hitch.”

Figure F. Pintle Hitch Coupler

A pintle hitch trailer may be fitted with a tongue jackstand that can raise and lower the coupler. The tongue jack is mounted to the A-frame (front or tongue) part of the trailer. By rotating the jack handle clockwise, the jack will extend and raise the tongue of the trailer.

The load rating of the coupler and the necessary pintle hitch size are listed on the trailer tongue.You must provide a pintle hitch and pintle coupler for your tow vehicle, where the load rating of the pintle hitch and pintle coupler is equal to or greater than that of your trailer.

Also, the pintle hitch size must be the same as the pintle coupler size. If the hitch is too small, too large, underrated, loose or worn, the trailer can come loose from the tow vehicle, and may cause death or serious injury.

Pintle Coupler and Pintle Hook

Before each tow, check the locking device that secures the coupler to the pintle hook assembly.

The pintle hook lever must be able to operate freely and automatically snap into place into the latched position. Lightly oil the pivot points and sliding surfaces with SAE30W motor oil to prevent rust and help ensure proper operation of the latching mechanism.

If you see or feel evidence of wear, such as flat spots, deformations, pitting or corrosion, on the pintle hook or coupler, immediately have your dealer inspect them to determine the proper action to prevent possible failure of the ball andcoupler system. All bent or broken coupler parts must be replaced before towing the trailer.

THE TOW VEHICLE, PINTLE HITCH AND PINTLE COUPLER MUST HAVE A RATED TOWING CAPACITY EQUAL TO OR GREATER THAN THE TRAILER Gross Vehicle Weight Rating (GVWR).

IT IS ESSENTIAL THAT THE PINTLE HITCH BE OF THE SAME SIZE AS THE PINTLE COUPLER.

The coupler size and load rating (capacity) are marked on the coupler. Hitch capacity is marked on the hitch.

WARNING

Coupler-to-hitch mismatch can result in uncoupling, leading to death or serious injury.

Be sure the LOAD RATING of the pintle hitch hook is equal or greater than the load rating of the pintle eye coupler.

Be sure the SIZE of the pintle hitch hook matches the size of the pintle eye coupler.

WARNING

A worn, cracked or corroded pintle hitch hook can fail while towing, and may result in death or serious injury.

Before coupling trailer, inspect the pintle hitch hook for wear, corrosion and cracks.

Replace worn or damaged pintle hitch hook.

Rock the pintle eye coupler to make sure it is secured tightly to the hitch.

Wipe the inside and outside of the pintle coupler. Clean and inspect it visually for cracks and deformations. Feel the inside of the coupler for worn spots and pits.

Be sure the coupler is secured tightly to the tongue of the trailer. All coupler fasteners must be visibly solid against the trailer frame.

PAGE 60 — 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 MessagesGeneral Safety Light Tower Safetyfire extinguisher 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 Dimensions DimensionsReference Letter Description Dimension Length Mast Stowed Position Length Mast Deployed PositionGeneral Information Components Major Components Control Panel SideRear Control Panel Light CONTROL/BREAKERControl Panel Indoor Installation InspectionBefore Starting Engine OIL CheckBattery Check Fuel CheckWipe up any spilled fuel immediately Cleaning the Radiator AIR Cleaner FAN Belt TensionCoolant Operation in Freezing WeatherLocation of Female Connectors Operation Starting the EngineStarting the Engine Perkins Starting the Engine Lombardini/Deutz EnginesMast Operation Outriggers and Support StandsDeploying the Mast to Vertical Position Raising the MastMast Operation Lowering the Mast Stowing the Mast to Horizontal PositionTurning on the Lamps Rotating the MastTesting the 120 VAC Gfci Receptacle Applying AN External LoadNormal Shutdown Emergency ShutdownMaintenance Basic Inspection and MaintenanceInspection/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 When switch is first Checking voltage and ballast Turned on Replacement minimizes color differencesClean fixture Lamp starts slowly ARC does not strike Defective Lamp?Lamp Troubleshooting Guide ConnectionsStarting 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 Electrical Connector TOW VehicleSuspension System Side View MirrorsSafety Chains JackstandCoupler Types 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 Determining Load Limit of Trailer StepTighten lug nuts before each tow 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 Safety Tips Table B. Tire Wear TroubleshootingTire Repair Replacing Worn or Damaged TiresLights and Signals Wheel RimsWheels, Bearings and Lug Nuts Lug Nut Torque RequirementsFigure L. Trailer to Tow Vehicle Wiring Diagram HERE’S HOW to GET Help
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