Changing The Brake Segments Of Front Cardan Brake; Adjusting The Free Play Of Front Wheel Tapered Roller Bearings At Tractors Z 8621, Z 9621 - Zetor 8621 Forterra turbo Operator's Manual

CHANGING THE BRAKE SEGMENTS
OF FRONT CARDAN BRAKE
Brake segments must be exchanged if
the thickness of lining is smaller than
2mm. Brake segments are accessible
after removing of two cotter pins se-
curing the cover sheet metal.
The wear of cardan brake segments is
indicated by indicator lamp on the dash-
board.
Note: There are contacts in brake
segment lining and these connect signal
electric circuit after wearing.
ADJUSTMENT
F 291
ADJUSTING THE FREE PLAY OF FRONT WHEEL TAPERED ROLLER
BEARINGS AT TRACTORS Z 8621, Z 9621
- Fix tractor against movement, lift up and support the front axle.
- Remove the bearing cover (1) and remove the cotter pin (2) from the castle nut
(3).
- Tighten the castle nut (3) by 15 Nm.
- Loosen the nut by 180„ and release the bearing by knocking of wooden mallet to
the wheel hub.
- Retighten the castle nut (3) with torque wrench by 3-5 Nm. If the slots of castle
nut are not aligned with opening in pin loosen the nut to the nearest slot. Wheel
must be freely turned without evident play but without evident resistance.
Bearings mustnřt be noisy. (Hub sealing creates a friction against turning and this
needs to be taken into consideration).
- Lock the castle nut with a new cotter pin.
- Add the grease in cover (1) fill maximally 1/3 of space in the hub.
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F 292