Cadillac 54-6219 1954 Shop Manual page 114

STEERING
TABLE OF CONTENTS
Note Page
No.
No.
Note Page
Note-Name
No. No.
Preliminary Operations Before
Steering Gear Adjustments
Steering Gear Adjustments
Manual Steering Gear
Worm Bearing Adjustment
Off Center
Pitman Shaft End-Play Adjustment
Through Center
Steering Gear Adjustments
Power Steering
Off-Center Preload Check
Pitman Shaft End Play Adjustment
Through Center
Power Rack Guide Adjustment
.
Checking and Bleeding Hydraulic
System
Checking Fluid Level
Bleeding the System
Pump Belt Tension Adjustment
.
Checking Pump Pressure
Drag Link Height Adjustment
Removal of Steering Wheel
Installation of Steering Wheel
.
Removal and Disassembly of
Steering Linkage
Removal
Disassembly
Assembly and Installation of
Steering Linkage
Assembly
Installation
Removal of Tank and Pump
Disassembly of Tank and Pump
.
Assembly of Tank and Pump
1 7-5
Installation of Tank and Pump
Assembly
2 7-5
Removal of Manual Steering Gear
Disassembly of Manual Steering Gear
2a 7-5
Assembly of Manual Steering Gear
Insçallation of Manual Steering Gear
2b 7-5
Removal of Power Steering Gear
Assembly
3 7-5
Disassembly of Power Steering Gear
3a
7-5 Assembly
Removal of Valve Body from Gear
3b 7-6
Assembly
3c 7-6 Disassembly of Valve Body
Removal of Cylinder Assembly
from Gear Housing
Disassembly of Cylinder
Disassembly of Gear
Housing
Assembly of Power Steering Gear
4
7-6
4a
7-5
4b 7-7
5 7-7
6 7-7
7
7-7
8
7-8
9
7-8
Assembly
Assembly of Gear Housing
Assembly of Valve Body
Installation of Valve Body
10 7-9 Assembly of Power Cylinder
.
Wa 7-9
Installation of Cylinder Assembly
lob 7-9
on Gear Housing
Installation of Steering Gear
11 7-9 Diagnosis
ha 7-9
Specifications
llb 7-10
Torque Tightness
12 7-10 Special Tools
13 7-10
22e 7-19
23 7-20
* 7-21
7-22
*
7-22
7-22
GENERAL DESCRIPTION
A hydraulically operated power steering gear,
Fig. 7-1, which combines the recirculating ball type
gear with a hydraulic booster mechanism, is used
on all 1954 series 62, 60S, and 75 cars, and is
available as optional equipment on the 86 series
when the chassis is ordered at the factory. The
hydraulic booster is linked to the pitman shaft
through a separate power rack and is controlled
by a valve assembly on the steering shaft. The gear
ratio of the power steering gear is 19.2 to 1. The
overall ratio is 21.5 to 1.
The manual steering gear assembly is used as
standard equipment on the 1954 series 86 cars only,
and is of the recirculating ball type,whichprovides
rolling cont.ct of the gesr with the worm to reduce
friction and attain ease of handling. Details of con
struction are shown in Fig. 7-2. The gear ratio of this
manual gear is 23.6 to 1, with an overall steering
ratio of 27.1 to 1.
The power steering gear, Fig. 7-1, is so designed
that it will reduce steeringeffort,especiallyduring
parking, yet not remove the so-called "feel" of
steering. In addition, the hydraulic system resists
road shock or kick-back. All steering is accomp
lished in an effort range of from zero to eight
pounds pull at the rim of the steering wheel, which
is proportional to the force necessary to turn the
front wheels. The hydraulic booster system does
not assist in steering until an effort of over three
pounds is exerted at the rim of the steering wheel.
Although there is a great reduction in steering ef
fort, the hydraulic system accomplishes no steering
effort, except through the guidance of the driver.
The principal working parts of the hydraulic gear
are the steering worm, ball nut, pitman shaftgear,
control valve, hydraulic cylinder and power rack.
The hydraulic supply system consists of an oil
reservoir, hydraulic pump, and a combination pres
Note Name
14 7-11
15
7-13
16 7-13
17 7-13
18 7-13
19
7-15
20 7-15
21 7-15
2la 7-15
21b 7-16
21c 7-16
2ld 7-16
21e 7-17
22
22a
22b
22c
22d
7-17
7-17
7-18
7-18
7-19