GMC C Series 1993, Repair Manual

Page: 220 / 264

5. Fan (29).
6. Pulley (30).
7. Washer (19).
8. Pulley nut (32).
N O T IC E : To o m u c h p re s s u r e a p p lie d a g a in s t
th e r o to r w ill d is to rt it.
• Place the rotor in 'a Vise and tighten the vise
only enough to permit the tightening of the
pulley nut. .
Q Tighten
• Nut to 100 N.m (75 ft. lbs.).
— Remove the assembly from the vise.
9. Rectifier bridge and capacitor to the slip ring end
frame with two ground screws (11) and one insulat­
ed screw (12) (figure 7).
Tighten
• Ground screws to 3.0 N-m (25 in. lbs.).
• Insulated screw to 2.5 N.m (22 in. lbs.). '
10. “BAT” terminal from the outside of the frame.
11. Nut (8) to “BAT” stud.
Tighten
• Nut to 5.5 N-m (50 in. lbs.).
12. Relay terminal from the outside of the slip ring end
frame. .
13. Insulated, washer and attaching strap (45) train the
rectifier bridge to the relay terminal with the copper
nut (60) (figure 14).
Tighten
• Nut (60) to 2.5 N-m (22 in. lbs.).
14- Brushes into the brush holder assembly and use a
retainer such as a toothpick to retain them (figure
; 15>- ■ ■ '■■'■■■■ .■■■;; V
•The.longer end of the retainer should extend
through the end frame for removal after: the
rotor and and the drive end frame are installed.
21 -$l 2 0 0 GENERATOR 6D1 -9
5 3 10. Brush Holder
53. Brush Retainer
F9228
Figure 15—Brush Retainer Installed
15. Regulator, brush: holder assembly, and diode trio to
the end frame with a ground screw and insulated
screws (figure 6).
16. Nut to the stud on the regulator. !
Q Tighten
• Nut to 2.5 N-m (22 in. lbs.).
17. Stator (13) to the slip ring end frame and the three
rectifier bridge terminals. .
18. Three terminal nuts securing the stator leads and
the diode trio leads to the rectifier bridge. '
a
Tighten *
• Nuts to 2.5 N-m (22 in. lbs.). >
19. Drive end frame and rOfo'r assembly to the slip ring
end frame.
V
• Line up the scribe marks. v
20. Four through bolts.
H I
Tighten
• Through bolts to 5.5 N-m (50 in. lbs.).
A. Remove the brush retainer from the end frame.
B. Test the generator output as instructed in “Gen­
erator Output Test” earlier in this section.