TM 5-3820-276-10-2
OPERATOR MAINTENANCE
NO ELECTRICAL POWER AT ONE OR MORE OUTLETS - MUD CLEANING SYSTEM (MCS)
INITIAL SETUP:
References
Equipment Condition
Volume 1, WP 0054
Engine off (Volume 1, WP 0050)
Catwalks open (Volume 1, WP 0049)
TROUBLESHOOTING PROCEDURE
NO ELECTRICAL POWER AT ONE OR MORE OUTLETS - MCS
SYMPTOM
Equipment plugged into electrical outlets on auxiliary power unit (APU) do not operate.
MALFUNCTION
EMERGENCY STOP switch depressed.
CORRECTIVE ACTION
Verify if EMERGENCY STOP switch is depressed (pushed in) (Figure 1).
CIRCUIT
EMERGENCY
BREAKERS
STOP SWITCH
ELECTRICAL
2/3 PHASE GFCI
OUTLETS WWDS00852
CIRCUIT BREAKER
Figure 1.
EMERGENCY STOP Switch.
a.
If depressed (pushed in), pull EMERGENCY STOP switch out. If required, start engine
(Volume 1, WP 0050) and verify if power is present at electrical outlets (Volume 1,
WP 0054).
b.
If not depressed (pushed in), proceed to next Green SYSTEM POWERED indicator not
illuminated.