Multiquip MLT25 operation manual Lamp Troubleshooting, Symptom Possible Cause Solution

Page 42

 

 

TROUBLESHOOTING

 

 

 

 

 

 

 

Table 5. 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.

 

 

 

page 42 — MLT25 sERIES LIGHT TOWER • operation manual — rev. #0 (11/28/12)

Image 42
Contents Model MLT25 sERIES Proposition 65 warning Reporting Safety Defects NhtsaTable of Contents Specifications are subject to change without noticeSaFeTY sYMBOLs Safety InformationSaFeTY Messages 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 towerTrailer Specifications MLT25 Series SpecificationsLight Tower Specifications Generator/Engine SpecificationsReference Letter Description Dimension DimensionsDimensions 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/RearBefore starting Read all safety instructions at the beginning of manualInspection Check all fastening nuts and bolts for tightnessContact between the two connectors Female and Male ConnectorMast operation OperationStarting the Engine Outriggers and Support StandsRaising the Mast Stowing the Mast to Horizontal Position Raising the MastLowering the Mast Rotating the MastMove the Voltage Selector to the desired position Voltage Selector PositionsCheck Cable Wear MaintenanceGenerator/ENGINE Maintenance Servicing the Mast Raise/Lower Cable SystemServicing the Mast Extension Cable System Lower the mast to the horizontal resting positionTrailer Brakes Maintenance TrailersManually Adjusting the Brakes Hydraulic BrakesAdjustable Channel Hydraulic Brake TroubleshootingWheel Hub Adjustment Leaf SuspensionSafety guidelines Trailers COMMOn Causes for LOss of TRaILeRTRaILeR TOWIng guIDeLInes DRIvIng COnDITIOns COupLIng to THe TOW veHICLeInOpeRaBLe BRaKes, LIgHTs or MIRRORs TRaILeR TOWIng TIpsTRaILeR vIn Tag SuspensIOn sYsTeM ELeCTRICaL COnneCTORTOW veHICLe BRaKe COnTROLLeRBReaKaWaY sYsTeM SaFeTY CHaInsTRaILeR LIgHTIng anD BRaKIng COnneCTOR JaCKsTanDLock washer and hitch frame Trailer tongue. Wood or concrete blocks may also be usedCoupling the Trailer to the Tow vehicle Ball Coupler Attaching safety Chain Breakaway Brake systemBreakaway Cable surge Brake system PInTLe Hitch COupLeR Connecting Trailer LightsUncoupling the Ball Hitch Pintle Coupler and pintle HookFigure H. Attaching Safety Chain Pintle Hitch Coupling Trailer to Tow vehicle pintle CouplerTIRe saFeTY Unsafe Tires, Lug nuts or Wheels Determining Load Limit of TrailerBe sure lug nuts are tight before each tow Step Determining Load Limit of Tow vehicle stepTIRe FunDaMenTaLs Table a. speed RatingLetter Rating Speed Rating Replacing Worn or Damaged Tires Tire safety TipsTire Repair Uniform Tire Quality grading standards uTQgsWheels, Bearings and Lug nuts Table B. Tire Wear TroubleshootingWheel Rims Lug nut Torque RequirementsLights and signals Table C. Tire Torque RequirementsLamp Troubleshooting Symptom Possible Cause SolutionClean fixture When switch is first Checking voltage and ballast Turned onReplacement minimizes color differences Lamp starts slowly ARC does not strike Defective Lamp?Ballast Removal Lamp Troubleshooting GuideConnections StartingElectronic components locator Wiring diagram sheet L3 NEU. GNDTB1 E1 AWG Page HERE’S HOW to GET Help