25287
FIG. B.lll/9 TIGHTENING THE NUT (ITEM
c,,
FIGURE
36)
WITH THE TORQUE WRENCH (F,
LONG TOOL NO. 779846) TO CHECK THE BEVEL
PINION BEARING SETTING
Install in the housing the caliper (Item
F,
Fig.
B.lll/11),
block
the
right
side bearing housing
complete
with
about 0.040"
(1
mm)
of
adjust·
ment
shims
(Item
Sa)
with
only three
nuts
(Item C.) tightened
to
the torque
of
41.2·45.5
ft.·lbs. (56·62
N•m)
and then arrange the left
side bearing housing
without
adjustment
shims
still
with
only
three
nuts
(Item 0),
previously lubricated and arranged at
120
o
from each other. Cross-tighten the
nuts
(Item
D)
with
torque increments
of
0.7 ft.·lbs.
(.9
N•m)
up
to
4.3 ft.·lbs.
(6
N•m)
per nut and, at
the same time, turn the caliper by hand
to
seat in the tapered roller bearings.
Arrange the caliper horizontally, turn the
knurled knob bringing the end
of
the pin in
abutment
with
the surface (Item
E)
of
the
shaft and take the reading
of
the dimension
(Or) and
its
sign given by the
pointer
as the
knob
stops
turning.
Write
down
the
correction factor (Item Oc,
Fig. B.lll/6) etched on the pinion face, ex·
pressed in mm. and preceded by the sign (
+)
or
(-
),
if
different
from zero.
NOTE: It is
important
to
remember
that
0.1
mm. equals 0.004 in.
Find
the
algebraic
difference
between the
measured
distance
(Item Or) and
the
correc-
tion
factor
(Item Oc): the result
will
be the
quantity
of
increment
of
reduction
of
the
thickness
and the
adjustment
shim stack
(Item
s,)
to
obtain
the
final shim
thickness
(Item
S,
Fig.
8.11116).
~-------~~c=?==~)~------~)
l~-----
I
I
I
b-=----,.....__,~
FIG.
B.lll/10
ARRANGEMENT
OF
CONE
CENTER DISTANCE CALIPER SHAFT
(E)
s,.
Pinion
cone
center
check
shim; Sp. Pinion
bearing
shims;
21. Rear bearing;
22.
P.T.O. driv·
ing
gear; 23. Spacer;
24.
Front bearing
_
_j
25289
FIG.
B.lll/11
ARRANGEMENT
OF
CONE
CENTER DISTANCE CALIPER
(F)
c
•.
Bearing
housing
(6)
stud
nuts;
D.
Bearing
housing
(13)
nuts;
E.
Caliper shaft;· Qr. Caliper
reading; Sa. 0.040"
(1
mm.).
Shim
stock
for bear·
lng
housing
(6);
s,. Cone
center
distance
check
shims;
6. Right bearing
housing;
13. Left bearing
housing
Power Train •
91
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