3.7 TAPERED ROLLER BEARINGS
Check for failed bearings or excessive bearing wear.
3.7.1 Outer races of tapered roller bearing
Remove the outer races out of the housing halves by
means of the special tool (Fig. 7-1)or by heating the
housing halves in an oven to approx. 120 ëC (248 F):
Put the housing in the oven upside down, so the outer
races will fall down.
|
WARNING
|
Use protective gloves when handling the heated
housing and outer races.
+
|
IMPORTANT
|
Regard locationof shims under each outer race for
correct position during reassembling.
Shims are located under outer races of the cover
only.
3.7.2 Inner races of tapered roller bearings
NOTE
.
Input shaft - spline side
.
The extractor (Fig. 7-2a) is required for pulling
the inner races off.
For extracting the inner races proceed as follows:
.
Screw in adapter onto the puller (item 1).
.
Place adapter onto the roller cage.
.
Tighten collar to rollers by means of cap nut (item
2).
.
Screw spindle (item 3)against shaft and pull bear-
ing evenly and carefully off.
|
WARNING
|
Improper use of the extractor whenremoving the
races, could cause damage to the race or slip off.
Input shaft - Control block side
The inner race and the gear on the control block side
can be removed by using the split ring and a standard
hydraulic press (fig. 7-2b).
Input shaft - Control block side ZF 85 A
.
Remove the retaining ring (item 1, Fig. 7-2c)using
a plier.
.
Scrap the retaining ring.
.
Remove the washer (item 2, Fig. 7-2c).
.
Remove the shims (item 3, Fig. 7-2c).
14
Repair Manual and Spare Parts List
Section 3
FIG. 7 - 1
3
2
1
INPUT SPLINE SIDE
CONTROL BLOCK SIDE
FIG. 7 - 2a
FIG. 7 - 2b
1
2
3
FIG. 7 - 2c
