Multiquip LT12P, LT12D operation manual Engine Troubleshooting, Symptom Possible Cause Solution

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TROUBLESHOOTING

 

 

 

 

Table 10. Engine Troubleshooting

 

 

 

Symptom

Possible Cause

Solution

 

 

 

 

No fuel?

Replenish fuel.

 

 

 

 

Air in the fuel system?

Bleed system.

 

 

 

 

Water in the fuel system?

Remove water from fuel tank.

 

 

 

 

Fuel pipe clogged?

Clean fuel pipe.

 

Fuel filter clogged?

Clean or change fuel filter.

 

 

 

 

Excessively high viscosity of fuel or engine

Use the specified fuel or engine oil.

 

oil at low temperature?

 

 

 

 

 

 

Fuel with low cetane number?

Use the specified fuel.

 

 

 

 

Fuel leak due to loose injection pipe

Tighten nut.

 

retaining nut?

 

 

 

 

 

Engine does not start.

Incorrect injection timing?

Adjust.

 

Fuel cam shaft worn?

Replace.

 

 

 

 

Injection nozzle clogged?

Clean injection nozzle.

 

 

 

 

Injection pump malfunctioning?

Repair or replace.

 

 

 

 

Seizure of crankshaft, camshaft, piston,

Repair or replace.

 

cylinder liner or bearing?

 

 

 

Compression leak from cylinder?

Replace head gasket, tighten cylinder head

 

bolt, glow plug and nozzle holder.

 

 

 

 

 

 

Improper valve timing?

Correct or replace timing gear.

 

 

 

 

Piston ring and liner worn?

Replace.

 

 

 

 

Excessive valve clearance?

Adjust.

 

 

 

 

Battery discharged?

Charge battery.

 

 

 

Starter does not run.

Starter malfunctioning?

Repair or replace.

 

 

Key switch malfunctioning?

Repair or replace.

 

 

 

 

 

Wiring disconnected?

Connect wiring.

 

 

 

LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 39

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Contents This Manual Must Accompany the Equipment AT ALL Times Models LT12D, LT12PProposition 65 Warning Nhtsa Reporting Safety DefectsSpecifications are subject to change without notice Table of ContentsSafety Messages Safety Informationfirst aid kit General SafetyLight Tower Safety fire extinguisherLamp Safety Before servicing equipment Engine SafetyTowing Safety Fuel SafetyLoading and Tie-Down on Flatbed Truck Transporting SafetyElectrical Safety Power Cord/Cable SafetyGrounding Safety Environmental Safety Battery SafetyLamp Footcandle Plot Lamp Footcandle PlotSpecifications Generator SpecificationsTrailer Specifications Engine Specifications Length Mast Stowed Position Length Mast Deployed Position DimensionsDimensions Reference Letter Description DimensionGeneral Information Major Components Control Panel Side ComponentsRear Light CONTROL/BREAKER Control PanelControl Panel Engine OIL Check Indoor InstallationInspection Before StartingBattery Check Fuel CheckWipe up any spilled fuel immediately Operation in Freezing Weather Cleaning the RadiatorAIR Cleaner FAN Belt Tension CoolantLocation of Female Connectors Starting the Engine Lombardini/Deutz Engines OperationStarting the Engine Starting the Engine PerkinsRaising the Mast Mast OperationOutriggers and Support Stands Deploying the Mast to Vertical PositionMast Operation Rotating the Mast Lowering the MastStowing the Mast to Horizontal Position Turning on the LampsEmergency Shutdown Testing the 120 VAC Gfci ReceptacleApplying AN External Load Normal ShutdownFrequency MaintenanceBasic Inspection and Maintenance Inspection/MaintenanceFlushing OUT Radiator and Changing Coolant General InspectionCheck Cable Wear Changing OILServicingthe Mast RAISE/LOWER Cable System Replacing Fuel FilterStorage Removal from Long Term StorageLower the mast to the horizontal resting position Maintenance Trailers Adjustable ChannelWheel HUB Adjustment Leaf Suspension Components Leaf SuspensionTroubleshooting Generator TroubleshootingSymptom Solution Symptom Possible Cause Solution Engine TroubleshootingEngine revolution is not Lamp Troubleshooting Lamp starts slowly ARC does not strike Defective Lamp? When switch is first Checking voltage and ballast Turned onReplacement minimizes color differences Clean fixtureBallast Removal Lamp Troubleshooting GuideConnections StartingStator LT12 Wiring Diagram S/N 902148 and belowBLK 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 DEUTZ/LOMBARDINI Specific LT12 Control PANEL/IGNITION Wiring DiagramTrailer Guidelines Common Causes for Loss of TrailerTrailer Towing Guidelines Coupling to the TOW Vehicle Driving ConditionsInoperable BRAKES, Lights or Mirrors Trailer Towing TipsTrailer VIN TAG Side View Mirrors Electrical ConnectorTOW Vehicle Suspension SystemBall Hitch Coupler Safety ChainsJackstand Coupler TypesCoupling theTrailer to theTow Vehicle Ball Coupler Lock washer and hitch frameAttaching Safety Chain Connecting Trailer LightsUncoupling the Ball Hitch Pintle Coupler and Pintle Hook Pintle Hitch CouplerTire Safety Unsafe Tires, Lug Nuts or WheelsCoupling Trailer to Tow Vehicle Pintle Coupler Be sure lug nuts are tight before each tow Determining Load Limit of TrailerStep Tighten lug nuts 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 Replacing Worn or Damaged Tires Tire Safety TipsTable B. Tire Wear Troubleshooting Tire RepairLug Nut Torque Requirements Lights and SignalsWheel Rims Wheels, Bearings and Lug NutsFigure L. Trailer to Tow Vehicle Wiring Diagram HERE’S HOW to GET Help
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