Final Drive, Description - Valtra 6000 Workshop Manual

45. Final drives
Final drives, description
The final drives are of the planetary gear type working in con-
junction with hydraulically controlled multi ---disc brakes
which run in oil. Final drives have been attached to the brake
housings with 14 bolts. Construction is the same on models
6100---6400, 8000 (transmission 300). On models 6600,
8100---8400 the planetary gears are of a sturdier construction
and a slightly gear ratio, and the brakes have a greater
number of discs. Wheel attaching flanges are identical on all
models.
The power is transmitted from the differential, via the inner
drive shaft, to the planetary gears, and then though the outer
drive shafts to the rear wheels. Planetary gear ratio; 1=5,2
(models 6100---6400, 8000) or i=6,86 (models 6600,
8100---8400).
In the final drives on tractors 6100 ---6400 the external splines
of the ring gear has a tight press fit in the rear axle housing. On
tractors 6600---8400 (not 8000) the ring gear is fitted between
the rear axle housing and the brake housing and is easy to
remove.
550 Nm
1
10---20 Nm
3
Figure 1. Final drives 300, tractors 6000 ---6400 and 8000 ( ---K41105)
1. Grease nipple (grease bearing at intervals of 1000 running hours)
2. Wind the wire ends one to one and a half turns and bend them
3. Bearing clearance is adjusted by tightening the centre bolt to 10 ---20 Nm. Apply Loctite 270 onto bolt threads.
4. Draining plug
5. Sealing compound Hylosil
1. 11. 1998
1. 8. 2000
The planetary sun gear is machined integral with the inner
drive shaft. When the inner shaft rotates, it drives the planetary
gears and the planetary gear retainer, which is connected to
the outer drive shaft, through splines.
The outer drive shaft is journalled in the drive axle housing in
taper roller bearings. The planetary gears are carried in needle
bearings on the shaft studs which are fixed to the planetary
retainer. On top of the rear axle housing there is a grease nipple
for greasing the outer bearing of the outer drive shaft.
The final drives have not a separate oil space but they have
common oil with transmission and hydraulic system.
On models 6600E and 8100E there is an impulse disc on the
RH side planetary retainer and the rear wheel rotation speed
sensor is fitted on the RH side rear axle housing.
80 Nm
2
Z=23
Z=15
Z=63
150 Nm
4
799
Model Code
6000-- 8750 450
80 Nm
5 5
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