1523.5-0000010 OM
16
Brakes: operating brakes are multi-disk, oil-lubricated, located on drive pinion shafts of hub
drive; the parking brake is independent, manually controlled. It is possible to mount dry-
friction brakes. The trailer brake control drive can be either double-line pneumatic, or hy-
draulic, interlocked with tractor operating brakes control. Against order it is possible not to
install the trailer brake pneumatic drive on the tractor – tires are inflated through a valve of
the pneumatic compressor.
The rear power take-off shaft is continuous, four-speed, with smooth start, having two
modes – standard and economic. The direction of rotation is clockwise as viewed from the
side of the shaft end extension butt end.
The first variant of supply:
The tractor is equipped with PTO 3 shaft end extension (20 splines) according to GOST
3480. PTO 1c shaft end extension (8 splines) according to GOST 3480 and PTO 2 shaft
end extension (21 splines) according to GOST 3480 and ISO500 are included into tractor
SPTA.
The second variant of supply:
The tractor is equipped with PTO 2 (21 splines) according to GOST 3480 and ISO500.
PTO 1 (6 splines) according to ISO500 and PTO 3 shaft end extension (20 splines) ac-
cording to ISO500 are included into tractor SPTA.
Front PTO (against order) is continuous, one-speed. PTO 2 shaft end extension (21 teeth)
complies with GOST 3480. The direction of rotation is clockwise as viewed from the side of
the shaft end extension butt end.
The transmission hydraulic system provides the following:
- switching of GB reduction unit passes, RPTO drive, FPTO drive, FDA drive, differential
lock;
- filtration of transmission oil;
- pressure feed lubrication of gearbox bearings, RA planetary gear reducer, FDA bearings;
- operation of the clutch hydraulic booster.
The steering is hydrostatic. The feed pump is gear-type, the direction of rotation is left. The
dosing pump is gerotor-type. The type of rotation mechanism is two hydraulic cylinders
(
Ц
50x200) of bidirectional action and a steering linkage.
The front driving axle is portal-frame with dismountable tubes, with planetary-cylindrical
final gears. The main drive is a pair of bevel gears with circular teeth. The differential is
self-locked, with increased friction. The FDA is driven from the gearbox through the fric-
tional hydraulically-operated clutch and the crankshaft. The FDA control is electro-
hydraulic.
The hydraulic lift linkage is remote-cylinder, providing draft, position and combined adjust-
ment of tillage depth of agricultural machinery, and suppression of vertical oscillation of
agricultural implements in traveling position; with electrohydraulic system (HER) of rear lift
linkage automatic control. The system has three pairs of independent outlets.
Free drain is available at the back for tractor operation with hydraulic units with constant
delivery, for example, with hydraulic motors.
The rear lift linkage is a three-point linkage of category 3 under ISO 730 and a linkage 3
under GOST 10677. There are two cylinders
Ц
90x250.
Bushings are included into tractor SPTA to provide an opportunity for coupling of imple-
ments of category 2 according to ISO 730 and lift linkage 2 according to 10677 to RLL.
The front lift linkage (against order) is a three-point linkage of category 2 under ISO 730
and a linkage 2 according to GOST 10677. There are two cylinders
Ц
90x250.
