Belarus 2022.6 Operator's Manual page 164

Bleeding of the hydraulic system shall be performed in the following order:
- fill tank 1 with brake fluid up to the mark "MAX";
- remove protection cap 23 from operating cylinder 25 and mount a rubber hose pipe
onto the head of overflow valve 24, put the hose pipe into the container with brake fluid;
- press the clutch pedal for several times;
- holding the clutch pedal pressed, unscrew overflow valve 24 by ¼ revolutions, drain-
ing brake fluid surplus with air bubbles into the container with brake fluid;
- screw overflow valve 24 in and release the clutch pedal;
- bleed the system until the brake fluid being drained has no bubbles;
- remove the hose pipe and mount protection cap 23;
- check the brake fluid level in tank 1 and if necessary, refill it.
ATTENTION: WHILE BLEEDING THE HYDRAULIC SYSTEM OF CLUTCH CON-
TROL, IT IS REQUIRED TO MAINTAIN BRAKE FLUID LEVEL IN TANK 1 BETWEEN THE
MARKS "MIN" AND "MAX"!
1 – tank; 2, 32 – spring; 3 – bolt; 4, 8, 21, 31 – nut; 5, 33 – yoke; 6, 15, 34 – pin; 7 – pedal; 9, 27 –
pusher; 10 – piston; 11 – main cylinder; 12 – panel; 13,17 - oil pipe; 14, 29 – bracket; 16 – support;
18, 20 – pipeline; 19 – angle piece; 22 – cover; 23 – protection cap; 24 – overflow valve; 25 – op-
erating cylinder; 26 – rod; 28 – hydraulic booster; 30 – rod; 35 – lever.
Figure 5.4.21 – Diagram of the main and operating cylinder clutch control, manufactured by
gearbox
OJSC "Hydraulic drive"
164
2022.6-0000010 OM
gearbox
rug