GMC 1976 ZEO 6083 Maintenance Manual page 565

2. If pitman shaft needle bearing replacement is
necessary, remove with Tool J-6278 . Since this bear-
ing is shouldered, it must be pressed out of the pit-
man shaft end of the housing.
Assembly
1 . Thoroughly clean all parts (figure 45) and lu-
bricate with Power Steering Fluid.
2 . Install pitman shaft needle bearing on Bearing
Installer J-22407, with shoulder on bearing against
tool . Position bearing and tool in housing and press
bearing into housing until bottom edge of bearing is
flush with the inner housing bore surface (figure 46).
CAUTION :
Do not drive the bearing further
into the housing after removing Tool J-
22407, since damage to the bearing would
result.
3 . Lubricate the lips of the oil seals with Power
Steering Fluid.
4. Install the pitman shaft oil seals as follows:
a. Place Adapter J-6278-2 over Tool J-6278,
then install the outer seal (double lip), backup
washer, and inner seal with the lips of the seals facing
away from the adapter. (Seal identification toward
adapter) .
b. Drive the seals into the housing until the
top of Adapter J-6278-2 is flush with the housing
(figure 47).
Figure 46-Installing Pitman Shaft Bearing
STEERING
9- 3 3
Figure 47-Installing Pitman Shaft Seals
c. Remove the tool and adapter, then install
the back-up washer and seal retaining ring . The re-
taining ring will not seat in the groove at this time .
d. Reinsert Tool J-6278 with Adapter J-6278-
2 and continue driving the seals until the retaining
ring seats in its groove (Refer to inset , figure 47),
then remove the tool and adapter.
REPLACEMENT OF PITMAN SHAFT
SEALS WITH STEERING GEAR IN
VEHICLE
If oil leaks at the pitman shaft seals, the seals may
be replaced without removing the gear assembly
from the vehicle as follows :
1 . Remove pitman nut and disconnect pitman
arm from pitman shaft using Puller J-24319 . Do not
hammer on end of puller .
2. Thoroughly clean end of pitman shaft and gear
housing, then tape splines on end of pitman shaft to
insure that seals will not be cut by splines during
assembly .
CAUTION :
Only one layer of tape should be
used; an excessive amount of tape will not
allow the seals to pass over it, due to the
close tolerance between the seals and the
pitman shaft.
3 . Remove pitman shaft seal retaining ring with
Snap Ring Pliers J-4245 .
4. Start engine and turn steering wheel fully to
the left so that oil pressure in the housing can force
out pitman shaft seals . Turn off engine .