46
To adjust the intermediate shaft bearings proceed as follows:
- remove the rear cap of the intermediate shaft bearings;
- unlock and tighten the nut fastening the intermediate shaft bearing so
that the spacing sleeve of the gears is clamped tightly;
- lock the nut and remount the cover;
- check axial displacement of the intermediate shaft in a similar manner as that
of the primary shaft, in doing so thrust the indicator foot against the end face of
one of the gears; the total indicator foot displacement should lie with in 0.03-
0.08 mm;
- adjust the bearings by removing the shims from under the intermediate
shaft rear cover.
To eliminate erros in measuring check axial displacement of the shafts two
-
three times before and after adjustment, having first cranked the shafts.
Check and, if need be, adjust the position of the differential interlocking coupling
and gear engagement clutch. Adjust the position of differential interlocking coupling
31 (see Fig. 32) by rotating the rod. When checking the coupling position set the rod
to its front fixed position and turn through the front axle drive shaft by its flange. If
the coupling does not contact the differential front holder, it is positioned correctly.
Should the coupling contact the holder, move it forward rotating the rod clockwise.
The position of gear engagement clutch 7 should be adjusted by selecting a pack
of shims 11 (Fig. 33). The clutch position is considered normal if, with the gear shift
fork rod being in its fixed neutral position, the difference in free length of the splines
in the center part of the primary shaft on the carriage’s both parts does not exceed 1
mm.
Transfer box control
should be adjusted by varying the length of tie rods 5
and 6 by means of adjusting forks, so that with the rod being in its center position
corresponding to the neutral position of the gear engagement clutch, lever 2
should be in the middle of the cab floor opening. With the high gear engaged and
the differential unlocked levers 1 and 2 should lie in one and the same plane. Upon
adjusting check the gears for easy shifting, then cotter the pins and tighten the lock-
nuts of the forks.
Fig. 33. Transfer Box Control:
1-differential interlocking lever; 2-
gear shift lever; 3-pressure spring;
4-lever shaft; 5,6-tie rods; 7,8-
carriers; 9-bracket; 10-gear shift fork
rod; 11-shims; 12- differential
interlocking fork rod of transfer box;
I-differential unlocked; II-differential
locked; A – lever’s front position
(high gear engaged); B – lever’s
middle position (neutral); C – lever’s
rear position (low gear engaged)