FIG. B.IX/17 ADJUSTMENT OF THE STEERING
AXIS BEARING CLEARANCE
C.
Shim set;
Vz.
Screw
for
adjustment check;
16. Steering lever axis; 17. Lower cover
fix the protection at a torque value
of
51·56 ft.
lbs.
(69·76
N-m).
TO
ASSEMBLE THE JOINT CASING WITH THE
SPHERICAL SUPPORT:
1.
Press on the spherical supports the bearing
outer races (Item 27, Fig. B.IX/10), the
bushing
(25)
then
fit
on the support the outer
sealing ring
(28)
which
is
retained by screws
on the ring
(14).
2.
After inserting the
0-ring
(29)
tighten the
screws at a torque
of
65·72 ft. lbs.
(88-97
N-m)
and fix the steering stop plate
(58)
as shown
on Fig. B.VIII/16.
The adjustment
of
the clearance
of
the tapered
roller bearing
of
the steering axis is carried out,
as follows:
1.
Fit
the steering lever axis by four screws
without
shims
and insert on the axle the
tapered roller bearing inner race (Item 27,
Fig. B.IX/10.)
20-30 minutes.
2.
Fit the
joint
casing (Item 15, Fig. B.IX/10) on
the spherical support as indicated on Fig.
B.IX/11.
3.
Place the tapered
roller
bearing Inner race
(27)
on the
joint
lower
cover axle
(17)
by
means
of
screws
without
shims.
4.
Let the
two
races get cold, then
tighten
the
lower cover by
two
screws protected by a
thin layer
of
oil. Tighten alternatively the
two
screws by
the
torque wrench at a torque
value
of
3-4ft. lbs.
(4-6
N-m) by continual rota-
tion
in both directions
of
the
joint
casing
for
a proper
fitting
of
the bearings.
5.
Check the play between the
joint
location
and the steering axis by using the shims, the
measurements being always carried
out
in
two
opposite points and establishing the
arithmetical mean
of
the
two
values.
6.
Add .004 in.
(0.1
mm.) to the obtained value
of
the play and divide
into
two
equal
quantities
using the
shims
(1,
and
lz).
7.
Fit
the shims, replace the screws used for
establishing the shim thickness by the
screws
(V21,
Fig. B.IX/17) and tighten at a tor-
que
of
87-94
ft. lbs. (118-127 N-m).
A CAUTION: If the value
of
the shim set is not
possible
to
be
divided
into
two
equal
quantities
it
is permitted
to
use dif-
ferent values having in view not
to
change the total one.
For example:
The values
of
the measured plays: .012 + .008
in. (0.3
+
0.2
mm.)
The arithmetical mean:
.012
+
.008
=
.010
(0.3
+
0.2
2 2
= 0.25 mm.)
Total value
of
shim set: .010 + .004 = .014 in.
(0.25
+
0.1
= 0.35 mm.)
The
shim
values may be: .008 and .006 in.
(0.2
and
0.15 mm.) indifferently
if
are upper or
lower
side
fitted.
Fit the
oil
ring (Item 12, Fig. B.IX/10) after having
coated
it
with
lithium
base lubricant grease, the
thrust
ring
(19)
and the
joint
axis
(20
respectively
23) together
with
the
joint
body
(22).
Apply the
sealing ring
(28)
then the ring
(14)
and
fit
in
its
place
the
clamp which
limits
the steering as
shown on Fig. B.IX/16.
Fill
the
joint
location
with
lithium
base lubricant
grease.
Fit
tt)e right steering lever by the self-locking
screws at a torque
of
87-94
ft. lbs.
Assemble the
outer
axle and the flange
to
the
joint
(15,
Fig. B.IX/19).
Fit
on
the
flange the
oil
ring (Item 12, Fig.
B.IX/10), Insert the tapered roller bearing inner
race
(11)
after having heated
it
on the
oil
bath at
176-194 •F. (80·90·C.), for about 20-30 minutes.
Introduce in the flange the
outer
axis
of
the
joint
(20)
and together
with
the
joint
ball
(21)
fit
the
joint
body
(21).
Apply a sealing and tighten the
screws retaining the flange on the
joint
body at a
torque
of
51·56 ft. lbs.
(69-76
N-m).
Power
Train·
119
To Next Page
Loading...
Need help?
General
