Brakes Drive Mechanisms - Belarus 3522.5 Operator's Manual

To the figure 3.9.2 –Brakes control scheme:
1 – locking nut; 2 – push rod; 3 – pipeline; 4 – main cylinder for forward motion; 5 – tank;
6 – spring; 7 – bolt; 8 – nut; 9 – forward motion pedal; 10 – push rod; 11 – pin; 12 – fork;
13 – piston; 14 – main cylinder for reverse; 15 – reverse motion pedal; 16 –operating cyl-
inder for forward motion; 17 –bypass valve; 18 – locking nut; 19 – adjusting nut; 20 – rod;
21 – operating cylinder for reverse; 22 – bypass valve; 23 – pin; 24 – fork; 25 – locking
nut; 26 – rod; 27 – sector; 28 – clamper; 29 – lever; 30 – button; 31 –flexible pipe; 32 –
lever.

3.9.3 Brakes Drive Mechanisms

The brakes drive mechanisms are common as well as for pedal drive by hydraulic cyl-
inders (at forward and reverse motion) and for mechanical manual drive from control lever
through a system of rods and levers on both wheels through shaft 1 (figure 3.9.3). When
pressed on pedals at forward motion is provided separate (on boards) brakes control and both
brakes control at pedals locking.
When pressed on pedal for reverse motion and at manual control, the tractor brakes
simultaneously with two rear wheels thanks to operating cylinder for reverse 21 and lever
32 (figure 3.9.2) (for reverse) and thanks to control lever 10 (figure 3.9.3), through rod 11 (for
manual control) on brake shaft 1, levers 3, 4, mechanisms "Б" and "В". Left and right brakes
drive mechanisms have an identical design. They differ from each other only in length of
shafts 8, 9, in orientation of their position and in external levers. Besides, to the internal
end of shaft 8 of right mechanism is welded an lever for pneumatic valve control.
"Б"– left brake drive mechanism; "B" – right brake drive mechanism;
1 – brake shaft;
lever; 6 – right back lever; 7 – rod; 8 –shaft of right brake and pneumatic valve drive
mechanism; 9 – shaft of left brake drive mechanism; 10 – control lever; 11 – brake control
rod.
2 – semi-circular key; 3 – right lever; 4 – left lever; 5 – left back
Figure 3.9.3 – Brakes drive
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