Download power steering

STEERING
PL
19 - 21
STEERING GEAR
TABLE OF CONTENTS
page
DESCRIPTION AND OPERATION
POWER STEERING GEAR. . . . . . . . . .
REMOVAL AND INSTALLATION
SERVICE WARNINGS AND CAUTIONS
POWER STEERING GEAR. . . . . . . . . .
OUTER TIE ROD . . . . . . . . . . . . . . . . .
. . . . . . . . 21
. . . . . . . . 22
. . . . . . . . 22
. . . . . . . . 26
DESCRIPTION AND OPERATION
POWER STEERING GEAR
The power steering gear is mounted on the front
suspension crossmember (Fig. 1). The outer ends of
the outer tie rods attach to the steering knuckles.
The power steering gear operates as follows: Turning of the steering wheel is converted into linear
travel through the meshing of the helical pinion
teeth with the rack teeth of the gear. Power assist
steering is provided by a pump supplying fluid to
either side of the integral rack piston.
page
SPECIFICATIONS
POWER STEERING GEAR FASTENER
TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . 28
SPECIAL TOOLS
POWER STEERING GEAR. . . . . . . . . . . . . . . . . . 28
Road feel is controlled by the diameter of a torsion
bar which initially steers the vehicle. This movement
directs oil behind the integral rack piston, which, in
turn, builds up hydraulic pressure and assists in the
turning effort.
The drive tangs on the pinion of the power steering
gear mate loosely with a stub shaft. This is to permit
manual steering control to be maintained if the drive
belt on the power steering pump should break. However, under these conditions, steering effort will be
increased.
Fig. 1 Power Steering Gear
1 – OUTER TIE ROD
2 – JAM NUT
3 – STEERING GEAR
4 – FRONT SUSPENSION CROSSMEMBER