Rear Lock-Up Manifold Components - Genie GTH-636 Service Manual

June 2007
REV C
7-8

Rear Lock-up Manifold Components

The rear lock-up manifold is located on top of the rear axle support bulkhead.
Index
No. Description
1 Check valve, pilot operated ............. HA .......... Left rear cylinder retract circuit ......... 35-40 ft-lbs / 47-54 Nm
2 Check valve, pilot operated ............. HB .......... Left rear cylinder extend circuit ......... 35-40 ft-lbs / 47-54 Nm
3 Check valve, pilot operated ............. HC .......... Right rear cylinder retract circuit ....... 35-40 ft-lbs / 47-54 Nm
4 Check valve, pilot operated ............. HD .......... Right rear cylinder extend circuit ...... 35-40 ft-lbs / 47-54 Nm
5 Shuttle valve, 2 position 3 way ........ HE .......... Chassis sway circuit ......................... 25-30 ft-lbs / 34-40 Nm
6 Directional valve, pilot operated ....... HF .......... Activates rear sway function ............. 35-40 ft-lbs / 47-54 Nm
7 Directional valve, pilot operated ...... HG .......... Opens check valves .......................... 35-40 ft-lbs / 47-54 Nm
8 Relief valve, pilot operated,
500 psi / 34.5 bar ............................. HH .......... Controls fluid pressure to cylinders .. 35-40 ft-lbs / 47-54 Nm
1
Note: 'alpha' callouts refer
to corresponding notes on
the hydraulic schematic
HH
5
4
3
Part No. 97487 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
Schematic
Item Function
HG
HF
Section 4 • Repair Procedures
HA HB
HC
HD
MANIFOLDS
Torque
2
2
2
HE
2
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