108
HYDRAULIC SYSTEM
F_02_112 F_02_113 F_02_53
HYDRAULIC SYSTEM
Hydraulic system consists of inner and
outer circuits.
The source of pressure oil is a gear
pump.
Oil is taken from the common amount of
oil of the gearbox and final drive.
HYDRAULIC SYSTEM PUMP
The hydraulic pump cannot be switched
off. As long as the engine is running, the
pump is operating.
The pump is alternatively supplied in two
sizes:
Pump type Oil amount supplied
1. UC 20 55 l/min
2. UC 25 69 l/min
Tractors Z 11741 are equipped
with hydraulic pump UC 25 only,
delivering 73 l/min.
Pressure generated in the hydraulic
system by the hydraulic system pump, is
limited with the relief valve to 20 MPa.
CONTROL PANEL LOCATION -
ELECTRO-HYDRAULIC SYSTÉM EHR B
Electro-hydraulic control panel (1) is lo-
cated on the upper part of right fender.
Description of hydraulic control is men-
tioned in chapter – electro-hydraulic
system.
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