URAL Motorcycles 750cc Series User Manual

VII
DISASSEMBLY AND REASSEMBLY OF THE FINAL DRIVE
AND SIDECAR DRIVE
(With the drive shaft dislodged)
To dismantle the final drive (Fig. 67):
- Turn off the drain plug, drain oil, fill kerosene instead and by rotating the drive in both
directions wash the inner cavity, then drain kerosene;
- Provide marks on the brake shoes to avoid installing them in a wrong position whilst
reassembling. Remove the brake shoes (Fig. 67, Pos. 1);
- Unscrew the nuts fastening the casing cover, remove the washers and by slightly knocking
against the end of the driven gear hub, remove the cover together with gasket and the driven
bevel gear in assembly with the hub (Fig. 67, Pos. 2);
- Remove the rollers from the hub groove (45 pieces); (Fig.67, Pos.3);
- Unscrew the nut fastening the pinion gear bearing by turning it clockwise (left-hand thread).
(Fig. 67. Pos.4)
- Using the mandrel press off the collar from the nut fastening the pinion gear bearing (Fig 67,
Pos.5);
- Insert the wedge into the pinion gear shank slot, remove the pinion gear together with the
radial-thrust ball bearing, remove the packing and the shim (Fig.67, Pos.6);
- Using a tool remove the radial thrust bearing 3086304 from the pinion gear shank (Fig. 67.
Pos.7)
- Using tool 345-325-3 remove the internal cage of the roller bearing of the pinion. (Fig.67,
Pos. 8)
- Take the needles out of the bearing on the pinion shank (Fig. 67, Pos. 9).
- Press off the external cage of the roller bearing of the pinion (Fig.67, Pos.10) using an
appropriate tool.
- Press off the collar from the final drive case using a mandrel (Fig.67, Pos. 11)
- Press off the external cage of the roller bearing of the hub using an appropriate tool (Fig.67,
Pos.12)
- Remove shims from the final drive cover.
- Remove distance rings and adjustment ring from the final drive hub.
- Using an appropriate tool remove hub in assembly with the driven bevel gear from the bearing
1000822 (Fig.67. Pos. 13)
- Shift the drive engagement lever into the position “disengaged”, make marks on the final drive
cover and the shift lever to further install them in the correct position.
- Screw out the drive shift fork stop out of the final drive cover
- Take out the cotter pin from the drive shift fork.
- Holding the drive shift lever by hand remove the shaft from the shift fork and the final drive
cover.
- Remove the drive shift sleeve in assembly with the fork from the splined hub (Fig. 67, Pos.14)
- Remove the fork from the shifting sleeve, take out two keys
- Using an appropriate tool remove the lock ring from the splined hub
- Set the cover onto the ring, put the mandrel into the splined hub hole and press off the splined
hub form the final drive cover.
- Using an appropriate tool press off bearing 3056204 from the splined hub (Fig.67, Pos.15)
- Using an appropriate tool press off bearing 1000822 from the final drive cover (Fig. 67,
Pos. 16)
- Using an appropriate tool press off bearing 7000111 from the final drive cover (Fig. 67,
Pos. 17)
- Press out the collar from the final drive cover (Fig. 67, Pos. 18)
Wash thoroughly and inspect all the removed parts of the final drive. Replace the defective parts.
74

URAL Motorcycles 750cc Series Specifications

General

Brand	URAL Motorcycles
Model	750cc Series
Category	Motorcycle
Language	English