126
ELECTRO-HYDRAULIC SYSTEM
SCHEME OF THE EHR B - BOSCH
ELECTRO-HYDRAULIC SYSTEM
OPERATION DIAGRAM
The hydraulic system pump (1) supplies
oil to the additional distributor (2) of the
hydraulic system, and from there it is de-
livered to the regulating distributor (3),
which controls the lifting arm cylinders
(4,5) of the hydraulic system.
The arms are interconnected with the
three-point hitch lower tie rods where the
agricultural implements – lifted, lowered,
or kept in required position with respect
to the tractor – are suspended.
The electronic control unit (6) receives
electric signals from the dynamometric
pins (7) and the sensors of position (8).
These signals are confronted with the
required value set up on the control
panel (9).
From the comparison of the required and
real values the resulting regulation de-
viation, which is transmitted to the regu-
lating distributor (3). This one is then re-
adjusted with two proportional electro-
magnets.
The lifting and lowering is independent
on the load.
F_02_161a
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Страница 217: ...217 SCHEDULED TECHNICAL MAINTENANCE LUBRICATING CHART TRACTORS Z 8641 Z 11741 F_02_155...
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