63
nut by bending out one washer edge. Torque required for cranking the driving bevel gear in the
bearings should be 0.6-1.4 N.m (0.06-0.14 kgf.m). Force on the dynamometer, when uncoiling
the cord from the body surface, is 7.5-17.5 N.m (0.75-1.75 kgf.m) (Fig. 46).
2. Adjust preload of the intermediate shaft bearings. Adjust the bearings by selecting a
pack of shims 8 (see Fig. 40) to be placed under cap 9 of body 5. The torque required for cranking
through the intermediate shaft should be within 0.9-1.5 N.m (0.09-0.15 kgf.m).
When using the dynamometer for measuring the torque, coil the cord on the spur gear rim;
the dynamometer readings should lie within 18,3-30,5 N (1,83-3,05 kgf). Remember, that when shims
are removed from under the body cap, when adjusting the bearings, the driven bevel gear is shift-
ed towards reduction of the backlash; therefore, add shims under bearing body 5 to maintain the
backlash.
3. Mount the body with the driving bevel gear into the final drive case. Torque the body
fastening bolts to 60-80 N.m (6-8 kgf.m). Check the correct meshing of the bevel gears using the
paint contact pattern. The pattern length is 60 % minimum, for the tooth length (Table 4).
The pattern should be offset by 5 mm minimum, from the tooth narrow end, the backlash
(at the tooth root) being within 0.1-0.4 mm. For changing the backlash in the bevel gears without
disturbing the contact, shift both gears to a distance, which is proportional to the number of teeth
of each gear, i.e. shift the driven bevel gear 2.2 times (24:11) farther than the driving one.
4. Mount the differential and adjust the differential bearings. Tighten the bolts fastening
the differential bearing caps to 250-320 N.m (25-32 kgf.m). Adjust the differential bearing caps
using nuts 36 (see Fig. 40). Upon tightening the nuts the distance between the differential bearing
caps should increase by 0.04-0.14 mm. When adjusting, turn the differential through for self-
adjusting of rollers in the bearings. The driven spur gear rim should be positioned symmetrically
about the driving gear rim.
Due to the enhanced production technology of differential pinions the satellite side gear
tooth shape has been altered. The altered pinions are not interchangeable with the previously
manufactured ones and should be replaced as a whole. There are marks to differentiate the pin-
ions: the axle shaft gear has a groove of 90 mm in diameter and the satellite gear has a step-
shaped face end.
Fig. 46 - Checking Adjustment of Driving Bevel
Gear Bearings
