1523.5-0000010 OM
155
5.4.2.12.2.3 Bleeding of the hydraulic system of clutch control with the main and operating
cylinders manufactured by “FENOX”
Before bleeding, fill tank 1 (figure 5.4.17) of main cylinder 11 with brake fluid.
Bleeding of the hydraulic system:
disconnect pipeline 16 from main cylinder 11 by unscrewing bolt 11a;
fill tank 1 with brake fluid up to the mark “MAX”;
- remove protection cap 21 from operating cylinder 23 and mount a rubber hose onto the head of
overflow valve 22, put the hose pipe into the container with brake fluid;
- after 4min (or when brake fluid appears at the outlet of main cylinder 11), connect pipeline 16 to
main cylinder 11 by screwing in bolt 11a;
- depress the clutch pedal several times;
- holding the clutch pedal depressed, unscrew overflow valve 22 for ¼ of the revolution, draining
brake fluid surplus with air bubbles into the container with brake fluid;
- screw in overflow valve 22 and release the clutch pedal;
- bleed the system until the drained brake fluid has no bubbles;
- remove the hose pipe and mount protection cap 21;
- check the brake fluid level in tank 1 and if necessary, refill it.
ATTENTION: WHILE BLEEDING THE HYDRAULIC SYSTEM OF CLUTCH CONTROL, IT IS RE-
QUIRED TO MAINTAIN BRAKE FLUID LEVEL IN TANK 1 BETWEEN THE MARKS “MIN” AND
“MAX”!
1 – tank; 2 – spring; 3, 11
а
– bolt; 4, 8, 19, 30 – nut; 5, 31 – yoke; 6, 15, 32 – pin; 7 – pedal; 9, 25 –
pusher; 10 – piston; 11 – main cylinder; 12 – oil pipe; 13, 27 – bracket; 14 – support; 16, 18 – pipe-
line; 17 – angle piece; 20 – cover; 21 – protection cap; 22 – overflow valve; 23 – operating cylinder;
24 – rod; 26 – hydraulic booster; 28 – link; 29 – pullback spring; 33 – lever; 34 – hose pipe.
Figure 5.4.17
– Diagram of the main and operating cylinder clutch control, manufactured by
“FENOX”
Tank
Dosing pump
Mat
