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1.2 Hydraulic motor
1.3 Hydraulic spring loaded
brake
This automatically brakes the load when
the control valve is put in the neutral
position or if the oil pressure is lost.
2 Control valve unit
2.1 Directional control valve 4-way, 3 position with spring-centred
motorised spool and built-in pressure
reducing valve. The ports A and B must
have at least R 1/2” threaded connec-
tions and the ports P and T at least R
3/4”.
2.2 Pressure reducing valve Must be pilot controlled, set to maximum
allowed pressure for the winch and be
sealed at installation.
3 Hydraulic oil supply unit
3.1 Hydraulic pump The pump must be able to deliver
required oil ow and oil pressure for the
winch. The pump is direct mounted to the
vehicle PTO. Fixed pump and load sen-
sing or variable pump requires different
directional control valve.
3.2 Hydraulic oil tank
3.3 Return oil lter Must lter to 10 microns or better and
accept required oil ow.
3.4 Pipe, hose and connectors Must be approved for min. 25 MPa (250
bar) working pressure and have the
following dimensions:
- Pump inlet line min. 1 1/4”
- Return line min. 1”
- Pressure lines hose 1/2” - 3/4”
- pipes min. Ø16 x 2 mm
- Pilot line, pipe min. Ø8 x 1 mm
Winch basics
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