Multiquip LT12P, LT12D operation manual Lamp Troubleshooting

Page 41

 

 

TROUBLESHOOTING

 

 

 

 

Table 11. Lamp Troubleshooting

 

 

 

Symptom

Possible Cause

Solution

 

 

 

 

Lamp Burned Out?

Test the lamp in a fixture which is operating properly.

 

Replace if necessary.

 

 

 

 

Inspect lamp base to see if there is arcing at center

 

Lamp Loose in Socket?

contact button. Tighten lamp snugly. Check socket for

 

 

damage. Replace if defective.

 

 

 

 

Lamp Plugs Not Tight?

Check plug and receptacle. Tighten if loose.

 

 

 

 

 

Interchange ballast plugs in generator enclosure.

 

Defective Ballast?

If lamp starts, replace ballast. Check ballast wiring

 

against diagram. Check for swollen capacitor, charred

 

 

 

 

wiring, core and coil or other signs of excessive heat.

 

 

 

 

 

Check line voltage at ballast input. Voltage should

 

Low Voltage?

be within 10% of nameplate rating when operating

 

at normal load. Increase supply voltage or remove

 

 

 

 

external load.

Lamp will not start.

 

 

 

Proper HID lamps will perform erratically or fail to

 

 

start on an improper ballast. The ballast nameplate

 

Improper Ballast?

data must agree with the line voltage and lamp used.

 

Improper ballast causes lamp failure. Note: Mercury

 

 

 

 

lamps of the same wattage will operate properly on

 

 

Metal Halide ballasts.

 

 

Operating position should agree with the lamp tech.

 

 

A BU-HOR lamp can be operated base up vertical to

 

Improper Lamp Operating

and including the horizontal and a BD can be operated

 

Position (Metal Halide only)?

base down vertical to, approaching, but not including

 

 

the horizontal. A lamp operated beyond the specified

 

 

position may not start.

 

 

 

 

 

HID lamps (High Pressure Sodium, Metal Halide,

 

Lamp has been Operating: Cool

Mercury Vapor) require from 4 to 8 minutes cool-down

 

Down Time Insufficient?

time before restarting. Switch off breaker and allow

 

 

lamp to cool.

 

 

 

 

 

Improper ballasting can cause flickering or erratic

 

Improper Ballast?

operation. In the start-up period the lamp may ignite,

Lamp flickers and goes

 

start to warm up and then extinguish (cycle).

out intermittent or

 

Under certain conditions new lamps may "cycle".

cycling.

New Lamp?

Usually after 3 tries to start at 30 to 60 second

 

 

intervals, lamps will stabilize and operate satisfactorily.

 

 

 

 

Defective Lamp?

Replace lamp.

 

 

 

LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 41

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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 InformationLight Tower Safety General Safetyfire extinguisher first aid kitLamp Safety Before servicing equipment Engine SafetyTowing Safety Fuel SafetyLoading and Tie-Down on Flatbed Truck Transporting SafetyGrounding Safety Electrical SafetyPower Cord/Cable Safety Environmental Safety Battery SafetyLamp Footcandle Plot Lamp Footcandle PlotTrailer Specifications SpecificationsGenerator Specifications Engine Specifications Dimensions DimensionsReference Letter Description Dimension Length Mast Stowed Position Length Mast Deployed PositionGeneral Information Major Components Control Panel Side ComponentsRear Light CONTROL/BREAKER Control PanelControl Panel Inspection Indoor InstallationBefore Starting Engine OIL CheckWipe up any spilled fuel immediately Battery CheckFuel Check AIR Cleaner FAN Belt Tension Cleaning the RadiatorCoolant Operation in Freezing WeatherLocation of Female Connectors Starting the Engine OperationStarting the Engine Perkins Starting the Engine Lombardini/Deutz EnginesOutriggers and Support Stands Mast OperationDeploying the Mast to Vertical Position Raising the MastMast Operation Stowing the Mast to Horizontal Position Lowering the MastTurning on the Lamps Rotating the MastApplying AN External Load Testing the 120 VAC Gfci ReceptacleNormal Shutdown Emergency ShutdownBasic Inspection and Maintenance MaintenanceInspection/Maintenance FrequencyFlushing OUT Radiator and Changing Coolant General InspectionCheck Cable Wear Changing OILServicingthe Mast RAISE/LOWER Cable System Replacing Fuel FilterLower the mast to the horizontal resting position StorageRemoval from Long Term Storage Wheel HUB Adjustment Maintenance TrailersAdjustable Channel Leaf Suspension Components Leaf SuspensionSymptom Solution TroubleshootingGenerator Troubleshooting Symptom Possible Cause Solution Engine TroubleshootingEngine revolution is not Lamp Troubleshooting Replacement minimizes color differences When switch is first Checking voltage and ballast Turned onClean fixture Lamp starts slowly ARC does not strike Defective Lamp?Connections Lamp Troubleshooting GuideStarting Ballast RemovalStator 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 Towing Guidelines Trailer GuidelinesCommon Causes for Loss of Trailer Coupling to the TOW Vehicle Driving ConditionsTrailer VIN TAG Inoperable BRAKES, Lights or MirrorsTrailer Towing Tips TOW Vehicle Electrical ConnectorSuspension System Side View MirrorsJackstand Safety ChainsCoupler Types Ball Hitch CouplerCoupling theTrailer to theTow Vehicle Ball Coupler Lock washer and hitch frameUncoupling the Ball Hitch Attaching Safety ChainConnecting Trailer Lights Pintle Coupler and Pintle Hook Pintle Hitch CouplerCoupling Trailer to Tow Vehicle Pintle Coupler Tire SafetyUnsafe Tires, Lug Nuts or Wheels Step Determining Load Limit of TrailerTighten lug nuts before each tow Be sure lug nuts are tight before each towP indicates the tire is for passenger vehicles Determining Load Limit of Tow Vehicle StepTire Fundamentals Letter Rating Speed Rating Uniform Tire Quality Grading Standards UtqgsTable A. Speed Rating Table B. Tire Wear Troubleshooting Tire Safety TipsTire Repair Replacing Worn or Damaged TiresWheel Rims Lights and SignalsWheels, 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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