Multiquip MLT25 Lock washer and hitch frame, Coupling the Trailer to the Tow vehicle Ball Coupler

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safety guidelines — TRAILERS

or is worn, the trailer can come loose from the tow vehicle and may cause death or serious injury.

THE TOW VEHICLE, HITCH AND BALL MUST HAVE A RATED TOWING CAPACITY EQUAL TO OR GREATER THAN THE TRAILER gross vehicle Weight Rating (gvWR). IT IS ESSENTIAL THAT THE HITCH BALL BE OF THE SAME SIZE AS THE COUPLER.

The ball size and load rating (capacity) are marked on the ball. 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 hitch ball is equal or greater than the load rating of the coupler.

Be sure the SIZE of the hitch ball matches the size of the ball coupler.

WaRnIng

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

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

Replace worn or damaged hitch ball.

WaRnIng

A loose hitchball nut can result in uncoupling, leading to death or serious injury.

Be sure the hitch ball is tight to the hitch before coupling the trailer.

„Rock the ball to make sure it is tightened to the hitch, and visually check that the hitch ball nut is solid against

the lock washer and hitch frame.

„Wipe the inside and outside of the coupler. Clean and visually inspect it 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.

„The bottom surface of the coupler must be above the top of the hitch ball. Use the tongue jackstand to support

the trailer tongue. Wood or concrete blocks may also be used.

Coupling the Trailer to the Tow vehicle (Ball Coupler)

„Lubricate the hitch ball and the inside of the coupler with a thin layer of automotive bearing grease.

„Slowly back up the tow vehicle so that the hitch ball is near or aligned under the coupler.

„Using the jackstand at the front of trailer (tongue), turn the jackstand crank handle to raise the trailer. If the ball coupler does not line up with the hitch ball, adjust the position of the tow vehicle.

„Open the coupler locking mechanism. Ball couplers have a locking mechanism with an internal moving piece and an outside handle. In the open position, the coupler is able to drop fully onto the hitch ball.

„Lower the trailer (Figure D) until the coupler fully engages the hitch ball.

2-INCH

TRAILER

COUPLER TOW VEHICLE

2-INCH

BALL

Figure D. Ball Hitch Coupling Mechanism

„Engage the coupler locking mechanism. In the engaged position, the locking mechanism securely holds the coupler to the hitch ball.

„Insert a pin or lock through the hole in the locking mechanism.

„Be sure the coupler is all the way on the hitch ball and the locking mechanism is engaged. A properly engaged locking mechanism will allow the coupler to raise the rear of the tow vehicle. Using the trailer jackstand, verify that you can raise the rear of the tow vehicle by 1 inch after the coupler is locked to the hitch.

„Lower the trailer so that its entire tongue weight is held by the hitch.

„Raise the jackstand to a height where it will not interfere with the road.

page 32 — MLT25 sERIES LIGHT TOWER • operation manual — rev. #0 (11/28/12)

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Contents Model MLT25 sERIES Proposition 65 warning Reporting Safety Defects NhtsaTable of Contents Specifications are subject to change without noticeSafety Information SaFeTY MessagesSaFeTY sYMBOLs Addresses practices not related to personal injuryGeneRaL saFeTY LIgHT TOWeR saFeTY LaMp saFeTYTOWIng saFeTY TRanspORTIng saFeTY Loading and Tie-Down on Flatbed TruckELeCTRICaL saFeTY „ neveR operate light towerMLT25 Series Specifications Light Tower SpecificationsTrailer Specifications Generator/Engine SpecificationsDimensions DimensionsReference Letter Description Dimension Length Mast Stowed Position Length Mast Deployed PositionGeneral information Metal Halide LampsComponents Major Components Control Panel SideCircuit Breakers, 3-Pole, 15 a Turn the lamps on and off Major Components Front/RearRead all safety instructions at the beginning of manual InspectionBefore starting Check all fastening nuts and bolts for tightnessContact between the two connectors Female and Male ConnectorOperation Starting the EngineMast operation Outriggers and Support StandsRaising the Mast Raising the Mast Lowering the MastStowing the Mast to Horizontal Position Rotating the MastMove the Voltage Selector to the desired position Voltage Selector PositionsMaintenance Generator/ENGINE MaintenanceCheck Cable Wear Servicing the Mast Raise/Lower Cable SystemServicing the Mast Extension Cable System Lower the mast to the horizontal resting positionMaintenance Trailers Manually Adjusting the BrakesTrailer Brakes Hydraulic BrakesAdjustable Channel Hydraulic Brake TroubleshootingWheel Hub Adjustment Leaf SuspensionTRaILeR TOWIng guIDeLInes Safety guidelines TrailersCOMMOn Causes for LOss of TRaILeR DRIvIng COnDITIOns COupLIng to THe TOW veHICLeTRaILeR vIn Tag InOpeRaBLe BRaKes, LIgHTs or MIRRORsTRaILeR TOWIng TIps ELeCTRICaL COnneCTOR TOW veHICLeSuspensIOn sYsTeM BRaKe COnTROLLeRSaFeTY CHaIns TRaILeR LIgHTIng anD BRaKIng COnneCTORBReaKaWaY sYsTeM JaCKsTanDCoupling the Trailer to the Tow vehicle Ball Coupler Lock washer and hitch frameTrailer tongue. Wood or concrete blocks may also be used Breakaway Cable surge Brake system Attaching safety ChainBreakaway Brake system Connecting Trailer Lights Uncoupling the Ball HitchPInTLe Hitch COupLeR Pintle Coupler and pintle HookFigure H. Attaching Safety Chain Pintle Hitch Coupling Trailer to Tow vehicle pintle CouplerBe sure lug nuts are tight before each tow TIRe saFeTY Unsafe Tires, Lug nuts or WheelsDetermining Load Limit of Trailer Step Determining Load Limit of Tow vehicle stepLetter Rating Speed Rating TIRe FunDaMenTaLsTable a. speed Rating Tire safety Tips Tire RepairReplacing Worn or Damaged Tires Uniform Tire Quality grading standards uTQgsTable B. Tire Wear Troubleshooting Wheel RimsWheels, Bearings and Lug nuts Lug nut Torque RequirementsLights and signals Table C. Tire Torque RequirementsLamp Troubleshooting Symptom Possible Cause SolutionWhen 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 ConnectionsBallast Removal StartingElectronic components locator Wiring diagram sheet L3 NEU. GNDTB1 E1 AWG Page HERE’S HOW to GET Help
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