Lights Do Not Illuminate-Flowchart 1A - WACKER Group LTC 4 Repair Manual

LTC Repair
7.8 Lights do not Illuminate—Flowchart 1A
Light(s) do not illuminate
Is circuit
breaker(s) in closed
position?
Yes
Are
bulbs black or
burnt?
No
Is wiring
connected at quick-
disconnects?
Yes
Checking engine speed
Check engine speed.
Is
engine speed
correct?
Yes
wc_tx000429gb.fm
No
Close circuit breaker(s).
Yes
Replace bulbs.
No Connect
quick-disconnects.
rpm with a photo tach
or vibrotach (Sirometer (wire whip)).
No
1. Change engine air and fuel filters.
2. If necessary, reposition speed control
lever on injection pump.
Checking voltage to main circuit breaker
Check voltage to main circuit breaker.
Is
120V±10%
measured?
No
See Flowchart 1C
93
Electrical Troubleshooting
Check engine
If rpm is low:
Yes See Flowchart 1B
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