Reconditioning Final Drives (Op No 451); Removing Final Drives; Changing Needle Bearings In Planetary Gears - Valtra 6000 Workshop Manual

45. Final drives
1. Reconditioning final drives
451)
Note! Both final gear types appear in the illustrations.
A. Removing final drives
Note! The brake housing is not removed from the tractor. E ---
models have a rotation speed sensor on the RH side final
drive.
1. Drain the transmission oil (22 mm, 3 plugs). Disconnect the
check links from the rear axle housings.
2. Slacken the rear wheel nuts. Raise the rear wheel and
remove it. Block up the tractor with an axle stand placed under
the front edge of the brake housing.
3. Unscrew the cab rear attaching bolts. Disconnect the PTO
control cable, pick ---up hitch release control and the joint at
the lower end of the lewelling screw control rod. Remove all
engine hood plates.
4. Raise the cab rear end about 6 cm and support it.
Note! The lifting rope can be attached to the lewelling screw
control rod support on the cab rear wall. Do not damage the
rear window.
5. Connect a suitable hoist to the rear axle housing. Unscrew
the final drive attaching bolts.
6. Pull the housing straight outwards so that it clears the brake
housing.
8. 11. 1990
B. Changing needle bearings in planetary
(Op no
gears
1. Remove the lock washer from the centre screw securing the
outer drive shaft to the planetary gear and unscrew the screw.
The attaching plate remains inside the planetary retainer.
2. Pull the planetary gear off the drive shaft. Cut the locking
wire under the locking spring for the planetary gear shaft
studs. Remove the locking wire.
3. Compress the locking spring with a pair of pliers and pull
the shaft studs out of the planetary retainer.
4. Remove the planetary gears from the retainer. Push at the
wear washers in order to prevent the 2x25 needles in each
bearing from falling out. Change the needles. When assem-
bling, fix the needles in position with a little grease.
Note! Note the spacers between the two rows of needles.
805
Model Code Page
6000-- 8750 451 1