Steering Gear; Description - Volvo 164 1969 Service Manual

GROUP 64
STEERING GEAR
DESCRI PTION
MECHANICAL
STEE~ING
GEAR
The design of the steering gear is shown in Fig. 6-29.
Steering wheel movement is transmitted to the wheels
via the steering column (5), steering, box (3), pitmon
arm (10), tie rod
(11), ste,
e ring rods (8 and 13) and
steering knucldes (7 and
10).
The relay arm (Fig . 6-42) is supported on a pin in the
braeket by means of a bush. The bush consists of
three par.ts, a rubber bush, an oute,r sle' e ve of sheet-
metai l and inside a spacer sleeve. The outer sleeve
has a press fit in the hole of the re,loy arm. When the
rel1 ay arm is turned, movement takes plac e' between
the outer sleeve and the rubber bush, the intervenin9J
space of which has been lubricated for Ilife,. The bear-
ing thus requ,ires no lubnicotion .
The upper and lower sections of the steering co lum n
(5, Fig. 6-29) are connected by means of a universal
joint. The lower section is mo unted to the steering
6 : 16
box by means of aflange (4) with rubber disc. Should
a frontal collision involving' the indentation of th e
front end occur, it is possib le for th e lower section of
the steering co lu mn to break away and thus prevent
the steering wheel from being forced backwards-up-
wards. Also contributing to this effect is a splined
joint with clamping sleeve on the upper section of the
steering column which permits axial compression dur-
ing powerfu l impact.
The upper section of the steering co lu mn is carried in
ball bearings in the jacket tube. The ends of the tie
rods and steering rods are plostic-lined which means
that they require no lubricating.
The ear has a turning circle of about
10
m (35 ft.)
and the number of steerin g· whee l turns from lock to
lo ck is 4.8.
VOLVO
103 135
Fig. 6-29. Steerin g gear components
l.
Sfeering knuckle, righf
2. Relay arm
3. Sfeeri ng bax
4. Lawer sfeering calumn flange
5. Lawer sfeering calumn secfian wifh universal jainf
6. Ball joinf
7. Sfeering knuckle, leff
8. Sfeeri ng rad, leff
9. Ball jainf
10. Pitman arm
11 . Tie rad
12. Ball jainf
13. Sfeering rad, righf
14. Ball jainf