Quantcast GENERATOR ABNORMAL OPERATION (650 AMPERE)

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TM 9-2815-220-24
GENERATOR ABNORMAL OPERATION (650 AMPERE)
THIS WORK PACKAGE COVERS:
Troubleshooting Table and Diagnostic Tests
INITIAL SETUP:
Tools:
Personnel Required
General mechanic's tool kit (item 121, WP 0176)
Track Vehicle Repairer (2) 63H10
Equipment Conditions:
Engine installed in vehicle or ground hop.
MALFUNCTION 1:
Not charging (indicator reads in "yellow" same as battery reading with engine stopped and
master switch "ON".
PROBABLE CAUSE
CORRECTIVE ACTION
a. Battery cables or terminals loose, corroded,
(1) Check battery condition.
broken or disconnected (connector nuts not
(2) Inspect and repair cables and terminals
tightened).
(refer to pertinent vehicle technical manual).
b. Defective electrical circuits or voltage
(1) Check circuits and voltage regulator (refer
regulator.
to pertinent vehicle technical manual).
(2) Repair and replace as necessary (refer to
pertinent vehicle or generator technical
manual).
c. Generator failed.
(1) Check circuits and generator (refer to
pertinent vehicle or generator technical
manual).
(2) Repair and replace as necessary (refer to
pertinent vehicle technical manual).
(3) Replace generator (WP 0051, Generator
Replacement - 650 Ampere).
(4) Assure that generator oil hoses are free of
obstruction.
d. Generator drive gear assembly failed.
(1) Perform Generator Drive Gear Assembly
Torque Check as follows:
PROCEDURE
OBSERVATION
ANALYSIS
Remove 1/8-inch pipe
plug located in center of
end plate and install 200
psi gauge.
Oil pressure 100 10 psi.
Start and warm up engine
Generator oil pump operation is
at idle speed (675-725
normal, the generator is rotating
rpm) to operating
and the drive coupling is
temperature (140 F).
functioning.
WP 0021 00-1

 


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