Clutch Check For Purity Of Disengagement - Belarus 1822.3 Operator's Manual

1. Bleeding of the hydraulic system on forward motion:
- fill the tank 1 with braking fluid up to "MAX" mark;
- remove a protective cap 32 off the operating cylinder 34 and put a rubber hose on
the head of the relief valve 33, immersing it in a container with braking fluid;
- depress the clutch pedal for several times;
- holding it depressed, unscrew the relief valve 33 by a quarter of a turn, relieving
the braking fluid surplus with air bubbles to the container with the braking fluid;
- screw the relief valve 33 in and release the clutch pedal;
- bleed the system until air bubbles fully disappear in the braking fluid relieved;
- remove the hose and put on the protective cap 32;
- check the braking fluid level in the tank 1 and add, if necessary.
ATTENTION: BLEEDING THE HYDRAULIC SYSTEM OF CLUTCH OPERATING
CONTROL ON FORWARD MOTION, WATCH THE BRAKING FLUID LEVEL IN THE
TANK 1 TO STAY BETWEEN "MIN" AND "MAX" MARKS!
2. Bleeding of the hydraulic system in reverse mode (for BELARUS-
1822 .3/2022 .3):
- remove the casing 17 of the main cylinder 23;
- check the braking fluid level in the balance chamber of the main cylinder 23, that must not go
below the dimension " " from the top edge of the balance chamber;
- the order of the hydraulic system bleeding is identical to the one on forward motion.
ATTENTION: BLEEDING THE HYDRAULIC SYSTEM OF CLUTCH OPERATING
CONTROL ON REVERSE, WATCH THE BRAKING FLUID LEVEL IN THE BALANCE
CHAMBER OF THE MAIN CYLINDER 23 NOT TO GO BELOW THE DIMENSION " "
FROM THE TOP EDGE OF THE BALANCE CHAMBER!
Check bleeding of the hydraulic system on forward motion as per clause 1.

3.2.4.3 Clutch check for purity of disengagement

After the above stated adjustments on clutch control have been carried out, it is re-
quired to check the clutch for purity of disengagement, for this purpose do the following:
- engage the parking brake;
- start the engine and set the engine speed to (1400±100) rpm;
- fully depress the clutch pedal and not earlier than after five seconds engage the GB
gears, which shall be "pure", i.e. without additional sounds and rasp.
In case there are additional sounds and rasp, it is needed to carry out a check and,
if necessary, make repeated adjustments, listed in clause 3.2.4.1.
With the clutch pedal 7 fully depressed (figure 3.2.6) the lever 44 movement with
the radius 105 mm shall make not less than the dimension "H".
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