GMC 1976 ZEO 6083 Maintenance Manual page 261

5- 4 2
BRAKES
4. Fill master cylinder reservoir with brake fluid,
No . 5464831, and bleed all wheel cylinders as ou-
tlined under "BLEEDING BRAKE SYSTEM".
DISC INSTALLATION
1. Install four hub to disc attaching bolts, and
torque to 35 ft . lbs. (figure 58). See caution on page
1 of "FRONT SUSPENSION" section 3A .
2 . Position retainer over hub.
3 . Lubricate seal lips with Special Seal Lubricant
No . 1050169 or equivalent then position seal over
hub with metal end toward retainer .
4. Install bearing as shown in Figure 59 .
Lubricate O.D . of bearing with E.P . chassis
grease .
The outer race of the bearing is a snug fit into
knuckle. Light tapping on the hubs outer surface, not
the disc, will aid assembly . Clean bearing seat on
knuckle of rust and dirt that may fall in during re-
moval.
Care must be used when installing hub assembly
over drive axle splines so that splines are in correct
alignment.
5 . Install three bolts attaching bearing retainer to
knuckle. Torque to 35 ft . lbs.
6. Install drive axle washer and nut. Torque nut
Figure 58-Hub to Disc Bolts
to 110 ft . lbs. If necessary to align cotter pin slot,
tighten nut and install NEW cotter pin and crimp.
Torque not to exceed 280 ft . lbs.
NOTE:
Do not back off nut to install cotter pin.
POWER BRAKE BOOSTER
INSTALLATION
1 . Position booster assembly on firewall and in-
stall four retaining bolts . (figure 22).
2 . Connect vacuum line to booster assembly .
3. Install master cylinder mounting bracket from
booster assembly to firewall .
4. Install master cylinder, refer to "Master Cylin-
der Installation".
5. Install clevis pin retaining brake pedal to brake
booster assembly clevis . Secure with cotter pin refer
to Figure 21 .
6. Install power level control panel and secure
with four screws .
PARKING BRAKE LEVER
INSTALLATION
1 . Position lever on toe board.
2 . Position cable in its retaining bracket and in-
stall pin.
3. Install parking brake switch .
4. Install two nuts and bolts holding cable retain-
ing bracket to lever base (figure 24).
Figure 59-Installing Bearing