GMC 1976 ZEO 6083 Maintenance Manual page 563

Figure 40-Installing Ring on Rack-Piston
3 . Turn the worm until the worm groove is
aligned with the lower ball return guide hole (figure
41) .
4. Lubricate the balls with Power Steering Fluid,
then feed 17 balls into the rack-piston, while slowly
rotating the worm counterclockwise .
INSTALL BALLS
WHILE ROTATING WORM
COUNTER CLOCKWISE
GUIDE
HALVES
WORM
FLANGE
A-1521
Figure 41-Installing Balls in Rack-Piston
STEERING
9- 3 1
CAUTION :
The black balls are .0005"
smaller than the silver balls. The black and
silver balls must be installed alternately into
the rack piston and return guide .
5 . Alternately install five balls into the return
guide and retain with grease at each end of guide.
Install the return guide clamp and tighten the two
clamp screws to six foot pounds.
STEERING GEAR HOSE CONNECTOR
AND POPPET CHECK VALVE
REPLACEMENT
The following procedure can be performed on
vehicle as well as on bench.
1 . Disconnect pressure and return line hoses at
steering gear and secure hose ends in a raised posi-
tion to prevent loss of fluid .
2. To prevent metal chips from becoming lodged
in valve assembly, pack inside of connector seats of
pressure and return ports with petrolatum .
3 . Tap threads in connector seats, using a
5/16-18 tap.
CAUTION : Do
not tap threads too deep in
pressure hose connector seat as tap will bot-
tom poppet valve against housing and dam-
age it. It is necessary to tap only two or
three threads deep .
4. Thread a 5/16-18 bolt with a nut and flat
washer into tapped hole (figure 42).
Figure 42-Removing Hose Connector Seat