Manitowoc Grove GRT880

5-10
Published 10/19/2017, Control # 618-00
HOIST AND COUNTERWEIGHT GRT880 SERVICE MANUAL
HOIST CONTROL VALVES
Description
NOTE: For more detailed information, refer to Valves,
page 2-39 in Section 2 - Hydraulic System.
Hydraulic Hoist Motor Control Valve
The hydraulic hoist motor control valve is mounted on the
hoist motor 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 brake 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 5-5
8669
1
FIGURE 5-6
8669-1
2
Reference Only