Seat And Its Adjustments; General Information; Adjustments Of "Belarus" Seat - Belarus 1523.5 Operator's Manual

2.22 Seat and its adjustments

2.22.1 General information

The seat has a mechanical suspension, consisting of two spiral torsion springs and a gas charged
shock absorber of bidirectional operation. A "scissors"-type guiding mechanism ensures strictly
vertical movement of the seat. A dynamic seat stroke is 100 mm.
ATTENTION: BEFORE STARTING TO OPERATE THE TRACTOR, ADJUST THE SEAT TO
REACH THE MOST COMFORTABLE POSITION. CARRY OUT ALL ADJUSTMENTS WHEN
STAYING IN THE SEAT! THE SEAT IS CONSIDERED CORRECTLY ADJUSTED ACCORDING
TO THE MASS IF IT MOVES HALF OF THE STROKE UNDER THE OPERATOR'S WEIGHT
(THE SUSPENSION STROKE IS 100 MM)!

2.22.2 Adjustments of "BELARUS" seat.

а) Seat "BELARUS 80-6800010"
1 – handle for adjustment according to the weight; 2 – handle for longitudinal adjustment; 3
– hand wheel for backrest tilt adjustment; 4 – handle for backrest adjustment
The seat "BELARUS" has the following adjustments:
- adjustment according to the operator's weight. It is carried out by means of handle 1 (figure
2.22.1) within the range from 50 to 120 kg. To adjust the seat for a bigger weight it is required to
shift the pawl of lever 1 into the 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 the 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, move
the seat and then release the handle. The seat will automatically 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 80B-6800000" the backrest tilt angle is adjusted by means of handle 4
within the range from plus 5° to plus 25°. To change backrest tilt angle, it is required to pull handle
4 up against the stop, move the backrest to the necessary direction to achieve the required angle
and then release the handle. 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 "low-
er" one.
B
67
B
b) Seat "BELARUS 80В-6800000"
1523.5-0000010 OM