MCi Crusader II 1989 Maintenance Manual page 360

Date
1-1-89
Page ____
1_1-_1_9 _ _
MC-9 MAINTENANCE MANUAL
5. Install the new rack piston backup O-ring (16) (figure
11-59), the new teflon rack piston seal ring (17) (figure 11-60)
into the rack piston (10) ring groove. Do not stretch the rings as
you install them. Coat with a liberal amount of grease.
WARNING: During the following step, you
should wear eye protection.
Figure 11-59. New 0-ring.
' ·,
' ",
\.
·~·~
Figure 11-60. New Seal Ring.
6. If the poppets were removed. then install into the rack
piston (10) one poppetseat(14}. one poppet (13). the spring (11),
the nylon spacer rod (12), the other poppet (13). and the other
poppet seat (14). Tighten both poppet seats to 20-25 ft. lbs.
(27.1-33.8 Nm) torque. Install both retaining rings (30) (figures
11-61. 11-62. 11-63).
Figure 11-61. Installing Poppet Seat.
Figure 11-62. Tightening Seat.
•
Figure 11-63. Retaining Ring Installation.
7. Grease the seal ring cavity in the rack piston (10) and
install the worm shaft (5a) into the rck piston (figure 11-67).
8. Assemble the ball return guides (4c) into the rack piston
(1 0). Make sure that the ball return guides are seated.
WARNING: Make sure the ball return guide•
stay down In place while you assemble the
balls. Failure to hold the guides down may
result in a ball being trapped outside the
closed loop. A trapped ball can result in a
steering lockup.
Figure 11-64. Installing Worm Shaft.
9. Assemble 34 balls (18) into the ball return guides (4c) and
rack piston (10). Drop the balls through the hole provided in the
ball return guides. As you drop the balls. rotate the worm shaft
(Sa) to pull the balls down into the grooves (figure 11-65).