MCi Crusader II 1989 Maintenance Manual page 361

Date
1-1-89·
Page·_. __
1_1_-2_0 _ _
MC-9 MAINTENANCE MANUAL
Figure 11-65. Ball Insertion.
10. Grease the ball return guide cap seal (4f) and place it in
the ball returrJ guide cap (4e) groove.Assemble the ball return
guide cap so that the seal is in full contact with the rack
piston (10) surface (figure 11-66). Install the two Allen head
bolts (4d) and tighten them to 15-19 ft lbs. (20-26 Nm)
(figure 11-67).
11. Rotate the worm shaft from end of travel to end of travel,
to make certain that you have installed the balls properly. ·
•ANING: If you cannot rotate the shaft,
you wlll have to remove the ball• and reas•
Mmble them. If you Install the ge•r on a
coach with shaft unable to rotate, the gear
will not function.
Figure 11-66. Installing Guide Cap Seal.
Figure 11-67. Bolt Tightening.
12. Apply a generous amount of cl_ean grease to the Teflon
rack piston seal (17) (figure 11-68), and to the housing cylinder
bore.
.
..,. ....
1 ,..,
Figure 11-68. Grease Piston Seal.
13. Install the rack piston (10) worm shaft (Sa) assembly into
the long end of the housing (1) so that the Teflon rack piston
seal goes in last (figure 11-69).
CAUTION: Be certain that the seal enters
the long end last; otherwiN, a large section
of the seal will be cut and the coach will
have no power steering anist.
'".
~
r-.
.,
.....................
Figure 11-69. Piston and Shaft Assembly Installation.
14. To ease the later assembly of the sector shaft (39), rotate
the rack piston worm shaft assembly in the housing so that the
rack piston teeth are exposed in the sector shaft cavity of the
housing.
15. Assemble the worm shaft adjusting screw jam nut (28)
onto the solid (nonslotted) end of the worm shaft preload adjust-
ing screw (27) so that the seal on the jam nut faces the end cover
(26). Assemble the poppet valve adjusting screw jam nuts (21)
onto the poppet valve adjusting screws (20) in the same manner
as described for parts (27) and (28).
16. If the poppet valve adjusting screws are not the same
length. assemble the shorter adjusting screw (20) 92.25 in.I 5. 715
cm long) into the end cover (26) a few turns.
•RNING:
If
the screws are of unequal
length, you must Install the shorter screw
Into the end cover. Otherwise, the poppet
auembly may break and cauN the atNrlng
gear to lock up.