Service Brake Adjustment; Parking Brake Adjustment - Zetor Proxima CL 80 Operator's Manual

ADJUSTMENT

Service brake adjustment

Secure the tractor against movement!
1. Lift the tractor rear wheels.
2. Loosen the nuts (2), nuts (6) and nuts (8).
3. Loosen the screw (7).
4. Let your helper turn one wheel and simultaneously tighten the screw (5) until the wheel starts to be
braked.
5. Loosen the screw (7) by 5/6 turn, check, if the wheel can turn freely and secure the screw (7) with the nut
(6).
6. Adjusting process is the same at the right-hand and left-hand sides.
If asymmetry of brake effect appears between the left and right brakes, it is necessary to loosen the adjusting
screw (7) of the brake with bigger brake effect, until the brake effects of the right and left wheels are equal.
But the screw can be loosened maximum by 1/2 turn. If asymmetry of brake effect is not eliminated even
after such adjusting, the tractor brakes must be adjusted in an authorized service.

Parking brake adjustment

1. Set the lever (4), so that the distance between the bracket (K) and the fork face at the level (4) might be
109 mm (so that the lever (4) might form angle 20° with vertical plane)
2. Screw the nut (2) to the seating surface of the pin (3) without play and without pre-stressing - it must not
come to depressing of the arms (5).
3. Adjusting process is the same at the right-hand and left-hand tractor sides.
4. By means of the nuts (8) adjust the Bowden cable of the parking brake lever so that at preservation of
angle 20° at the lever (4), the parking brake lever could be without play.
5. Rise and lower the parking brake lever (1) several times. You will eliminate possible mutual plays among
the parts by this way.
6. Check adjustment of the parking brake system, in case of necessity re-adjust, and check tightening of all
locking nuts (6), (8)
If asymmetry of brake effect of the parking brake appears between the left and right brakes, it is necessary to
loosen the upper adjusting nut (6) of the brake with bigger brake effect until the brake effects of the right and
left wheels are equal. But the nut (2) can be loosened maximally by 1,5 turn. If asymmetry of brake effect is
not eliminated after such adjusting, the tractor brakes must be adjusted in an authorized service.
Note: There are adjusting openings in the tractor cab floor for making easy the brake.
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