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TM 10-3930-638-24&P
2-26. ALTERNATOR MAINTENANCE (cont)
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
WARNING
Wear safety glasses when drying parts with compressed air.
Failure to do so could cause serious injury to eyes and possible
blindness. If you hurt your eyes or if a foreign object is blown
into your eyes, seek medical attention immediately.
4
Pulley (14), fan (15),
Clean
Use cleaning solvent P-D-680 and stiff
strap (18), and bracket
bristled brush. Dry thoroughly with
(22)
compressed air
5
All hard ware
Clean
Use cleaning solvent P-D-680. Dry
thoroughly with compressed air
INSPECTION
6
Fan (15)
Inspect
Replace if cracked or damaged, or if fins
bent or broken
7
Pulley (14), strap (18)
Inspect
Replace if cracked, damaged or worn
and bracket (22)
8
All hardware
Inspect
Replace if worn, or if threads damaged
9
Diode (26)
Test
Set ohmmeter to lowest resistance range,
and connect leads to terminals of diode.
Note reading, then reverse leads and note
reading. There should be one low and one
high reading. Replace if readings are
both low, both high, or identical
INSTALLATION/REPLACEMENT
10
Alternator
a. Fan (15) and
Position
On shaft
pulley (14)
b. Lock washer (13) and
Install
Tighten to 40-60 pounds foot torque
nut (12)
11
Engine compart- a. Diode (26)
Plug in
ment rear, left side b. Tie strap (25)
Loop and tie
Around harness and diode (26)
of vehicle
c. Bracket (22)
Position
On engine
d. Lock washer (21) and
Install and
cap screw (20)
tighten
e. Spacer (19) and
Position
On engine
strap (18)
f. Leek washer (17) and
Install
Tighten hand-tight only
cap screw (16)
g. Alternator (11)
Position
On bracket (22)
2-116
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