Belarus 3522.5, Operator'S Manual

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3522.5-0000010
РЭ
100
3.3 Clutch
3.3.1 Coupling clutch
A dry-friction double-disk spring-loaded coupling clutch is mounted on the engine
flywheel through a spacer.
The clutch driving part is a flywheel 1 (figure 3.3.1), a pressure plate 4 and a center
plate 3, having four tenons on outer surfaces, which intrude into special mortises of the
spacer 23.
Twelve pressure springs 20 with heat-insulating washers 21 are mounted between
the back plate and the pressure plate. The back plate 6 is mounted on the flywheel spacer
on two pins and is fixed to it with bolts 5.
Four release levers 7 are mounted on the pressure disk juts on axes 8 and rollers 9.
The release levers rest on the forks 14, fixed on the back plate by means of adjusting nuts
13, locked by the plates 10, 11. The plates are attached to the back plate by bolts 12. Two
driven disks 2, transferring turning torque from the engine through a power shaft 24 to the
tractor transmission, are mounted between the flywheel, the center and the pressure plates.
At the front the power shaft 24 rests on a bearing 25, permanently greased and mounted in
the flywheel.
The driven disk has a hub with splines to fix to the power shaft, a damping device
consisting of eight rubber elements and friction liners as metal-ceramic segments.
The clutch is engaged and disengaged by means of a throw-out 17 with a release
bearing 18, attached to a yoke 16, located on a shaft 15, mounted on needle bearings in
the clutch casing. A lever, connected with the clutch drive, is mounted on the end of the
shaft 15.
1 – flywheel; 2 – driven disk; 3 – center plate; 4 – pressure plate; 5 – bolt; 6 –
back plate; 7 – release lever; 8 – release lever axis; 9 – rollers; 10,11 – lock plates; 12 –
bolt; 13 – adjusting nut; 14 – fork; 15 – shaft, 16 – throw-out yoke; 17 – throw-out; 18 –
release bearing; 19 – rest of release levers; 20 – pressure springs; 21 – heat-insulating
washers; 22 – bolt, 23 – spacer; 24 – power shaft; 25 – bearing.
Figure 3.3.1 – Coupling clutch
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