Gearbox Inspection; Input Shaft Components; Output Shaft, Exploded View - Lada Niva 4x4 Service Manual

Fig. 3-30. Input shaft components:
1 - circlip; 2 - spring washer; 3 - bearing; 4 - input shaft; 5 - synchro unit spring;
6 - synchro unit baulk ring; 7 - circlip; 8 - bearing
- note visually the location of parts relative to risk A (fig. 3-34),
made on the directing plate, so that to reassemble the parts in the
same order;
- having undone the nuts from the fastening bolts, separate
the parts of the gear selector mechanism and remove lever 9,
ball socket 4 and rubber sealing rings 15.
The reassembly of the gearbox is carried out in reverse
sequence. Pay attention, that:
- the reverse idler gear shaft is fitted before refitting the shafts
in the transmission casing with torque to 78 N•m (7.8 kgf•m);
- before refitting the 5th/reverse fork rod in the crankcase,
refit the spacer;
- the inner ring of the bearing is press-fitted on the 5th/
reverse gear unit, and the outer one - in the rear cover socket;
Fig. 3-31. Output shaft, exploded view:
1 - circlip; 2 - spring washer; 3 - synchro unit hub; 4 - synchro unit sleeve; 5 - baulk ring; 6 - spring; 7 - washer; 8 - 3rd speed gear; 9 - output shaft; 10 - 2nd speed gear;
11 - 1st speed gear; 12 - gear bush; 13 - bearing; 14 - key; 15 - reverse gear; 16 - 5th speed gear; 17 - oil deflector washer; 18 - spacer; 19 - output shaft rear bearing;
20 - oil seal; 21 - coupling flange; 22 - lock washer; 23 - nut; 24 - seal spring; 25 - seal; 26 - centering ring
- the output shaft rear bearing is press-fitted on the shaft to
facilitate the installation of the rear cover;
- the reverse idler gear 1 (see fig. 3-23), gear 3 and fork 4 are
installed simultaneously;
- when reassembling the gear switch lever apply grease
ãëñ-15 or ãàíéã-24 on the ball or the cap of the ball socket;
- the gear unit fastening bolt is tightened with torque to 78
N•m (7.8 kgf•m);
- when refitting the clutch housing with the transmission cas-
ing front cover, the opening in the front cover should be located
as shown on fig. 3-15;
- grease the oil seals with ãàíéã-24 before refitting;
- use tools 41.7853.4028, 41.7853.4032, 41.7853.4039 to
install the sealings and bearings.
Inspection
Cleaning. Before inspection, carefully clean all gearbox com-
ponents. Brush or scrape all deposits or residues, clean the
bores and splines; then wash down to dissolve and remove all
traces of oil.
Blow the parts with compressed air and carefully wipe them.
Especially carefully blow the bearings, directing the air jet so, that
to exclude fast rotation of rings.
Gearbox casing and covers. There should be no cracks on
the casing, and no wear or damage should be evident on the
bearing housings.
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