Section 7. Maintenance Procedures
Belarus 80.1/80.2/82.1/82.2/82
Р — Operation and Service Manual
89
Adjusting Tapered Roller Bearings of
the Directive Wheels in Tractors Bela-
rus 80.1/80.2
When adjusting the directive wheel bear-
ings, set an end play within 0
.08…0.20
mm. Every 1000 hours of tractor opera-
tion check the clearance. To do this, jack
the wheel up and shake it in the direction
normal to the rotation plane and deter-
mine bearing clearance.
Should the end play be excessive, make
adjustment, with due observation of the
order, as follows:
а) unscrew the bolts and remove cap (2)
(see Fig. 59);
b) uncotter castellated nut (1) and, while
turning the wheel by hand, tighten the
nut (1) until rotation of the wheel be-
comes rather tight. Then, back the nut
to an extent that would permit the
nearest slot in the nut to register with
the cotter-pin hole in the axle shaft;
c) check the wheel for easy rotation;
d) cotter the nut, refit the cap in place,
first packed up with grease.
Adjusting the Front Wheels Toe-in
(tractors equipped with HSB)
Front wheel toe-in is set within
0…8 mm
at the Manufacturing Works.
At regular intervals, every 500 hours of
tractor operation, and also each time the
front wheeltrack is changed, check and,
if necessary, adjust the wheel toe-in. Pri-
or to checking, be sure to adjust clear-
ances in the wheel bearings and the
steering tie-rod joints.
Fig. 59
Fig. 60
For checking the wheel toe-in, proceed as
follows (see Fig. 60):
а) position the tractor on a level hard-
paved ground;
b) bring the pitman arm (10) into the
middle position; to attain this, turning
the steering wheel, set it to a position,
wherein feeler (14) (see Fig. 62) sinks
to maximum depth;
c) check to see that the bevel gear pair
housings (for tractors equipped with
FDA) or steering knuckles (tractors
Belarus 80.1) are advanced the same
length
Б (see Fig. 60) from out of the
front axle housing and the fore axle
tube, respectively.