Terex 833002, Operator, Service & Parts Manual

Page: 29 / 86

November 2006
Part No. 833002 Rev A AL4000 Light Tower 29
TROUBLESHOOTING
TROUBLE POSSIBLE CAUSE REMEDY
6.Engine runs but produces a a.Crankcase oil level is too high a.Drain oil to its proper level
dense smoke b.Low compression b.Have a trained mechanic
inspect for broken or seized
rings. Inspect valve clearances
7.Engine overheats a.Blocked cooling air intakes a.Inspect the front and rear intakes
and clear as needed
b.Low coolant levels b.Replace the coolant with a 50%
water/coolant solution
c.Radiator fins have become c.Clear the radiator fins
clogged
d.Fan belt is loose
d.Tighten fan belt
8.Engine runs but the battery a.Alternator has failed a.Have a trained mechanic inspect
voltage is low the alternator
9.Engine runs but the lights will a.Circuit breakers are tripped a.Reset the circuit breaker
not operate b.Loose connections in the wiring b.Have a trained electrician inspect
system the ballast box wiring system
c.Burned out bulb c.Replace the bulbs as needed
d.Defective capacitor d.Have a trained electrician inspect
(Leroy Somers Generator) the capacitor
e.Defective AC generator e.Have a trained electrician inspect
the generator
f.Engine speed is too low f.Have a trained mechanic inspect
the engine speed and reset to
1800rpm @ 60hz
g.Defective ballast and capacitors g.Have a trained electrician inspect
the ballast and capacitors
10.Unusual noise coming from a.The generator has a defective a.Have a trained electrician inspect
the generator bearing or damaged fan blade the generator
11.Lamp will not start a.Lamp loose in socket a.Inspect lamp base to see if there
is arcing at center contact button.
Tighten lamp. Check socket for
damage. Replace if needed.
b.Floodlight plugs not tight
c.Defective ballast c.Interchange ballast plugs. If lamp
starts, replace ballast. Check for
swollen capacitors, charred wiring,
core and coil, or other signs of
excessive heat.
d.Low voltage d.Check line voltage at ballast input.
Voltage should be within 10% of
b.Check plug and receptacle. Tighten
if needed. Make sure power is off.
rating when operating at normal load.
Increase supply voltage or remove
external load.