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Page Title:
ALTERNATOR (PRESTOLITE) MAINTENANCE - continued |
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 TM 9-2320-386-24-1-1
0089 00
ALTERNATOR (PRESTOLITE) MAINTENANCE (Contd)
INSTALLATION
NOTE
Ensure pulley is installed properly. Collar on pulley mounts
toward rear of vehicle.
1.
Install new woodruff key (10) and pulley (7) on alternator (14) with washer (6) and new locknut (5).
2.
Install bracket (11) on engine (3) with two new lockwashers (13) and screws (12).
3.
Install bracket (1) on engine (3) with two screws (4) and new locknuts (2).
4.
Install alternator (14) on bracket (11) with two new lockwashers (9) and screws (8). Finger-tighten
screws (8).
5.
Secure bracket (1) to alternator (14) with new lockwasher (16) and screw (17).
6.
Tighten two screws (8).
NOTE
Ensure wires and terminals are clean before connections are
made.
7.
Install leads 770-P (30) and ground (GND) (19) on block (29) with new lockwasher (20) and
screw (21). Tighten screw (21) 82-102 lb-in. (9.4-11.5 Nm).
8.
Install leads 770-N (27) and 2 (26) on stud (28) with new lockwasher (25) and nut (24). Tighten
nut (24) 45-55 lb-in. (5.1-6.2 Nm).
9.
Connect lead 568 (15) to Y-connector (31).
10.
Install plate (32) on block (29) with two new lockwashers (33) and screws (18). Tighten screws (18)
30-35 lb-in. (3.4-3.9 Nm).
11.
Connect battery ground cable (WP 0121 00).
12.
Install fan drivebelt (WP 0084 00).
TEST
1.
Start engine (TM 9-2320-386-10).
2.
Set engine speed to 1200 rpm (TM 9-2320-386-10).
3.
Turn on headlights (TM 9-2320-386-10) to place load on alternator.
4.
Using multimeter, check alternator output voltage. Connect black lead to ground (GND) lead (19)
and touch red lead to lead 2 (26). Output voltage should be 28.0 0.2 VDC.
5.
Turn off headlights (TM 9-2320-386-10).
6.
Stop engine (TM 9-2320-386-10). If adjustment is required, continue to adjustment. If no
adjustment is required, go to step 7.
7.
Completely seal leads 568 (15), 770-P (30), ground (GND) (19), 2 (26), and 770-N (27), and
two studs (28) with adhesive sealant.
8.
Install cover plate (22) on block (29) with two new assembled-washer screws (23).
NOTE
If adjustment was performed, go to step 9.
9.
Apply sealing compound to pipe plug (34) threads. Using hex-head driver, install pipe plug (34) and
tighten 24-36 lb-in. (3-4 Nm).
ADJUSTMENT
1.
Remove pipe plug (34) from alternator (14).
2.
Turn adjusting screw counterclockwise to increase voltage or clockwise to decrease voltage.
3.
Repeat test procedure to ensure voltage is at normal operating range.
0089 00-4
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