892-0000010B OM
61
2.19.2 BELARUS seat adjustments
а) BELARUS 80-6800010 seat b) BELARUS 80V-6800000
1 – handle to adjust by weight; 2 – handle for longitudinal adjustment; 3 – hand wheel
to adjust backrest tilt; 4 – lever to adjust backrest tilt.
Figure 2.19.1 – BELARUS seat adjustment
The BELARUS seat has the following adjustments:
- adjustment according to the operator's weight. It is carried out by means of handle
1 (Figure 2.19.1) within the range from 50 to 120 kg. To adjust the seat for a bigger weight
it is required to shift the pawl of handle 1 into position “A” and tighten the springs with a
reciprocal movement. To adjust the seat for a smaller weight, it is required to shift the pawl
into position “B” and release the springs with a reciprocal movement.
- longitudinal adjustment. It is carried out by means of handle 2 within the range of
80 mm from the middle position. To move the seat forward-backwards, it is required to pull
handle 2 up towards you, move the seat and then release the handle. The seat will auto-
matically get locked in a required position.
- adjustment of the backrest tilt angle:
a) For the seat “BELARUS 80-6800010”, the backrest tilt angle is adjusted by means
of hand wheel 3 within the range from minus 15° to plus 20°. To increase the backrest tilt
angle, it is necessary to turn the hand wheel clockwise, to decrease it – counterclockwise.
b) For the seat “BELARUS 80V-6800000”, the backrest tilt angle is adjusted by means
of laver 4 within the range from plus 5° to plus 25°. To change the backrest tilt angle, it is
required to pull lever 4 up against the stop, move the backrest to the necessary direction to
achieve the required angle and then release the lever. The seat will get locked in a required
position.
- height adjustment is carried out within the range of 30 mm from the middle position.
The seat has three height positions: “lower”, “middle” and “upper”. To move the seat from
the “lower” position to the “middle” position or from the “middle” position to the “upper” one,
it is required to lift the seat smoothly till the arresting stop goes off (a specific click is heard).
To move the seat from the “upper” position to the “lower” one, it is necessary to lift the seat
against the stop with an abrupt movement and let it down. It is impossible to move the seat
from the “middle” position to the “lower” one.