Multiquip MLT25 SaFeTY CHaIns, TRaILeR LIgHTIng anD BRaKIng COnneCTOR, BReaKaWaY sYsTeM

Page 31

safety guidelines — TRAILERS

eMeRgenCY FLaRes anDTRIangLe ReFLeCTORs

It is wise to carry these warning devices even if you are not towing a trailer. It is particularly important to have these when towing a trailer because the hazard fl ashers of your towing vehicle will not operate for as long a period of time when the battery is running both the trailer lights and tow vehicle lights.

saFeTY CHaIns

If the coupler connection comes loose, the safety chains can keep the trailer attached to the tow vehicle. With properly rigged safety chains, it is possible to keep the tongue of the trailer from digging into the road pavement, even if the coupler-to-hitch connection comes apart.

TRaILeR LIgHTIng anD BRaKIng COnneCTOR

A device that connects electrical power from the tow vehicle to the trailer. Electricity is used to turn on brake lights, running lights, and turn signals as required. In addition, if your trailer has a separate braking system, the electrical connector will also supply power to the brakes from the tow vehicle.

BReaKaWaY sYsTeM

If the trailer coupler connection comes loose, the breakaway system can actuate emergency hydraulic brakes depending on the type of actuator on the trailer. The breakaway cable must be rigged to the tow vehicle with appropriate slack that will activate the system if the coupler connection comes loose.

JaCKsTanD

A device on the trailer that is used to raise and lower the coupler. The jack is sometimes called the “landing gear” or the “tongue jack”.

COupLeR TYpes

Two types of coupler used wit the trailer are discussed below.

„Ball Hitch Coupler

„Pintel Eye Coupler

BaLL HITCH COupLeR

A ball hitch coupler (Figure C) connects to a ball that is located on or under the rear bumper of tow vehicle. This system of coupling a trailer to a tow vehicle is sometimes referred to as “bumper pull.”

A ball hitch trailer may be fi tted with a tongue jack 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.

Figure C. Ball Hitch Coupler

Before each tow, coat the ball with a thin layer of automotive bearing grease to reduce wear and ensure proper operation. Check the locking device that secures the coupler to the ball for proper operation.

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

The coupler handle lever must be able to rotate freely and automatically snap into the latched position. Oil the pivot points, sliding surfaces, and spring ends with SAE 30W motor oil. Keep the ball socket and latch mechanism clean. Dirt or contamination can prevent proper operation of the latching mechanism.

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

Also, the ball size must be the same as the coupler size. If the hitch ball is too small, too large, is underrated, is loose

MLT25 SERIES LIGHT TOWER • operation manual — rev. #0 (11/28/12) — page 31

Image 31
Contents Model MLT25 sERIES Proposition 65 warning Nhtsa Reporting Safety DefectsSpecifications are subject to change without notice Table of ContentsAddresses practices not related to personal injury Safety InformationSaFeTY Messages SaFeTY sYMBOLsGeneRaL saFeTY LaMp saFeTY LIgHT TOWeR saFeTYTOWIng saFeTY Loading and Tie-Down on Flatbed Truck TRanspORTIng saFeTY„ neveR operate light tower ELeCTRICaL saFeTYGenerator/Engine Specifications MLT25 Series SpecificationsLight Tower Specifications Trailer SpecificationsLength Mast Stowed Position Length Mast Deployed Position DimensionsDimensions Reference Letter Description DimensionMetal Halide Lamps General informationMajor Components Control Panel Side ComponentsMajor Components Front/Rear Circuit Breakers, 3-Pole, 15 a Turn the lamps on and offCheck all fastening nuts and bolts for tightness Read all safety instructions at the beginning of manualInspection Before startingFemale and Male Connector Contact between the two connectorsOutriggers and Support Stands OperationStarting the Engine Mast operationRaising the Mast Rotating the Mast Raising the MastLowering the Mast Stowing the Mast to Horizontal PositionVoltage Selector Positions Move the Voltage Selector to the desired positionServicing the Mast Raise/Lower Cable System MaintenanceGenerator/ENGINE Maintenance Check Cable WearLower the mast to the horizontal resting position Servicing the Mast Extension Cable SystemHydraulic Brakes Maintenance TrailersManually Adjusting the Brakes Trailer BrakesHydraulic Brake Troubleshooting Adjustable ChannelLeaf Suspension Wheel Hub AdjustmentCOMMOn Causes for LOss of TRaILeR Safety guidelines TrailersTRaILeR TOWIng guIDeLInes COupLIng to THe TOW veHICLe DRIvIng COnDITIOnsTRaILeR TOWIng TIps InOpeRaBLe BRaKes, LIgHTs or MIRRORsTRaILeR vIn Tag BRaKe COnTROLLeR ELeCTRICaL COnneCTORTOW veHICLe SuspensIOn sYsTeMJaCKsTanD SaFeTY CHaInsTRaILeR LIgHTIng anD BRaKIng COnneCTOR BReaKaWaY sYsTeMTrailer tongue. Wood or concrete blocks may also be used Lock washer and hitch frameCoupling the Trailer to the Tow vehicle Ball Coupler Breakaway Brake system Attaching safety ChainBreakaway Cable surge Brake system Pintle Coupler and pintle Hook Connecting Trailer LightsUncoupling the Ball Hitch PInTLe Hitch COupLeRCoupling Trailer to Tow vehicle pintle Coupler Figure H. Attaching Safety Chain Pintle HitchDetermining Load Limit of Trailer TIRe saFeTY Unsafe Tires, Lug nuts or WheelsBe sure lug nuts are tight before each tow Determining Load Limit of Tow vehicle step StepTable a. speed Rating TIRe FunDaMenTaLsLetter Rating Speed Rating Uniform Tire Quality grading standards uTQgs Tire safety TipsTire Repair Replacing Worn or Damaged TiresLug nut Torque Requirements Table B. Tire Wear TroubleshootingWheel Rims Wheels, Bearings and Lug nutsTable C. Tire Torque Requirements Lights and signalsSymptom Possible Cause Solution Lamp TroubleshootingLamp starts slowly ARC does not strike Defective Lamp? When switch is first Checking voltage and ballast Turned onReplacement minimizes color differences Clean fixtureStarting Lamp Troubleshooting GuideConnections Ballast RemovalElectronic components locator L3 NEU. GND Wiring diagram sheetTB1 E1 AWG Page HERE’S HOW to GET Help