5-19
RT770E HOIST AND COUNTERWEIGHT
Published 11/26/2014, Control # 447-05
HOIST CONTROL VALVES
Description
NOTE: For more detailed information, refer to Valves,
page 2-30 in Section 2 - Hydraulic System.
Hydraulic Hoist Motor Control Valve
The hydraulic hoist motor control valve is mounted on the
hoist and is designed to provide an even flow of oil to the
hoist motor in both directions. This is a different valve than
the hoist motor control valve that applies and releases the
hydraulic piston and hydraulic cylinder.
Hoist Directional Control Valve
The hoist directional control valve is used to control the
operation of the hoist. It is a four-way, pilot operated valve
and is mounted on the right side of the turntable.
FIGURE 5-13
8425-1
Item Description
1 To LED Indicator
2 Power and Ground
3 Main Hoist Pressure Switches
4 Auxiliary Hoist Pressure Switches
1
2
4
3
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