TM-5-3805-254-34
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
MARCH 1993
TM-5-3805-254-34 - Page 88 of 727
TM 5-3805-254-34
5-1.
GENERATOR REPAIR (Con’t).
5.
Remove bearing collar (11) from rotor (2).
6.
Remove three screws (6), lockwashers (7), and plate (8) from housing (3).
Discard lockwashers.
7.
Remove bearing (10) from housing (3).
8.
Connect one lead of multimeter to one stator lead
(13) and the other lead to clean part of stator frame
(15).
If reading is high, windings are not properly
grounded and stator (14) must be replaced.
9.
Remove three nuts (20) and stator (14) from end (1).
10. Using multimeter with 1 -volt cell set at lowest range scale, check diode (16) by connecting one lead to single
connector (18) and other lead to one of three connectors (19).
Record reading.
Reverse multimeter leads to same
two connectors.
Record reading.
If readings are the same, replace diode trio.
A good diode trio will give one high and
one low reading.
Repeat step for other two connectors.
11. Remove screw (17) and diode (16) from end (1).
TA703696
5-3
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