Foot Brake Adjustment; Parking Brake Adjustment; Adjustment Of The Lifting Draw-Bars Of The Hitch For A Single-Axle Semi-Trailer; Adjusting The Bowden Cable - Zetor CRYSTAL Series Operator's Manual

Foot brake adjustment

Before the adjustment of the foot brake the parking brake
lever must be in the unbraked position and between the
nut (1) and pin (2) in the disc brake lever (3) there must be
some play. If you find zero play, loosen the nut (1) slightly.
Lift both the rear wheels and instruct your assistant to turn
one of them by hand. At the same time tighten the
adjustment nut (4) until the wheel cannot be turned. Stop
tightening. Then, loosed the adjustment nut by 5/6 of
a turn (5 tabs of the nut) and check the turning of the
wheel.
After this basic adjustment check the operation of the foot
brakes to see whether the braking effect of both the
wheels is the same. If not, loosen the adjustment nut (4)
by the required value on the side where the braking effect
is higher.

Parking brake adjustment

The adjustment of the parking brake follows after the
adjustment of the foot brake. The parking brake lever must
be in the unbraked position. Perform the adjustment in
such a way that the self-locking nut (1) of the parking
brake draw-bar can touch the pin (2) in the disc brake
lever (3).
After this basic adjustment check the operation of the
parking brake to see whether the braking effect of both the
wheels is the same. If not, loosen the adjustment nut (1)
by the required value on the side where the braking effect
is higher.

Adjustment of the lifting draw-bars of the hitch for a single-axle semi-trailer

- Raise the hydraulic arms to the upper - transport position
with the position control selected and the vibration
compensator off.
- Screw the nuts on the adjustable draw-bars towards the
guiding pipe without any play.
- Tighten the nuts by another 3.5 turns.
- Check whether it is possible to tilt off the supporting
hooks freely.
- By lowering and repeated lifting of the hydraulic arms to
the transport position check whether the engine does not
tend to 'stall' at the idle speed - the relief valve of the
hydraulic pump must not be in operation.
- Then, lower the arms slightly.

Adjusting the bowden cable

It is performed if the carrier with the towing hook is in
contact with the supporting hooks. The Bowden cable
must be tensioned to avoid any play of the control lever in
the cab. Then, the cable is secured against loosening with
a nut.
ADJUSTMENT
165
FH12N070
FH12N071
F_02_142
F_2_132