Multiquip LT12D, LT12P Replacing Fuel Filter, Servicingthe Mast RAISE/LOWER Cable System

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MAINTENANCE

REPLACING FUEL FILTER

1.Set the container under the ﬁlter cartridge to catch fuel.

2.Using a ﬁlter wrench, turn the ﬁlter cartridge to the left to remove it.

3.Clean the ﬁlter holder, ﬁll the new ﬁlter cartridge with fuel, coat the packing surface of the ﬁ lter cartridge with engine oil, then install the cartridge to the ﬁlter holder.

4.When installing, tighten until the packing surface contacts the seal surface of the ﬁ lter holder then tighten a further 2/3 of a turn. If the ﬁlter cartridge is tightened too much, the packing will be damaged and will cause fuel leakage. Fuel leakage will occur if the ﬁlter cartridge is not tightened enough. Always tighten to the correct angle.

5.Squeeze the fuel primer bulb to pump fuel back into the engine.

6.Replace corrosion resistor cartridge (if equipped).

7.Screw in valves at the top of the corrosion resistor.

8.Using a ﬁlter wrench, turn the cartridge to the left to remove it.

9.Coat the seal surface of the new cartridge with engine oil and install it to the ﬁlter holder.

10.Tighten until the packing surface contacts the seal surface of the ﬁlter holder, then tighten a further 2/3 of a turn.

11.Open valves.

SERVICINGTHE MAST RAISE/LOWER CABLE SYSTEM:

To replace any components in the mast raise/lower cable system, use the following steps (See Figure 21):

Figure 21. Mast Raise/Lower Cable System

1.Lower the mast to the horizontal resting position.

2.Inspect the cable clamps, pulleys, and other components for worn or damaged parts.

3.Disconnect the cable from the ball socket pin and remove from the mast pulley and cable sheave. Detach the cable from the hand winch as necessary.

4.Replace the pulley and the cable as needed.

5.Rethread the cable through the pulley and reattach the cable to the ball socket pin.

6.Raise and lower the mast several times to verify correct operation.

SERVICINGTHE MAST EXTENSION CABLE SYSTEM:

To replace the cable in the mast extension cable system, use the following steps (See Figure 22):

CENTER	LOWER			LOWER
MAST		MAST		MAST						ROUTE TO
PULLEY	PULLEY			SHACKLE						HAND WINCH

UPPER	CENTER	LOWER
MAST	MAST	MAST

Figure 22. Mast Extension Cable System

PAGE 34 — 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 TruckPower Cord/Cable Safety Electrical SafetyGrounding Safety Battery Safety Environmental SafetyLamp Footcandle Plot Lamp Footcandle PlotGenerator Speciﬁcations 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 CheckFuel Check Battery 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 SystemRemoval from Long Term Storage StorageLower the mast to the horizontal resting position Adjustable Channel Maintenance TrailersWheel HUB Adjustment Leaf Suspension Leaf Suspension ComponentsGenerator Troubleshooting 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 SpecificCommon Causes for Loss of Trailer Trailer GuidelinesTrailer Towing Guidelines Driving Conditions Coupling to the TOW VehicleTrailer Towing Tips Inoperable BRAKES, Lights or MirrorsTrailer 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 CouplerConnecting Trailer Lights Attaching Safety ChainUncoupling the Ball Hitch Pintle Hitch Coupler Pintle Coupler and Pintle HookUnsafe Tires, Lug Nuts or Wheels Tire SafetyCoupling 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 towTire Fundamentals Determining Load Limit of Tow Vehicle StepP indicates the tire is for passenger vehicles Table A. Speed Rating Uniform Tire Quality Grading Standards UtqgsLetter 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