BELARUS-1523/1523
В
/1523.3
/1523В.3
Construction and Operation
123
Hydraulic Brake Actuator of the BELARUS-1523
В
/1
523В.3
Tractor
1,7 – right-hand master brake cylinder; 2 – reverse pedal; 3 – reverse master brake cylinder; 4, 8, 9, 11,
13 – pipeline; 5, 6 – left-hand brake pedal; 10, 12 – tap; 14, 20 – brake lever (right- and left-hand); 15, 21
– link bolt; 16; 19 – master brake cylinder (right- and left-hand).
The hydraulic actuator of the tractor
brakes is intended for transmitting the
force when braking during the forward
and reverse motion from the work mem-
bers (pedals) to the actuators (service
brake cylinders by means of the actuat-
ing medium (brake fluid). The brake ac-
tuation type is hydrostatic, with over-
hang pedals.
The actuator consists of the master
cylinders (1, 7) (for forward motion) and
(3) (for the reverse mode), overhang
pedals (5, 6) (for forward motion) and (2)
(for the reverse mode), taps (10, 12) (for
automatic switching-over from the for-
ward- to the reverse-motion mode of
operation of the tractor and vice versa),
service brake cylinders (16, 19), levers
(14, 20), bolts (15, 21), flexible hoses
(17, 18) and pipelines (8, 9) (for forward
motion) and (4, 11, 13) (for reverse).
When stepping on the pedals (5, 6) in
the forward motion mode, the brake fluid
is passed from the master cylinders (1,
7) through the pipelines (8, 9) into the
taps (10, 12). In the taps, the pistons
move to the extreme position and close
the inlets of the pipelines (11, 13). Then
the brake fluid is passed though the
flexible hoses (17, 18) into the service
cylinders (16, 19) and moves their pis-
tons which act upon the levers (14, 20)
by means of rods. The levers turn and
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