5-3 OPTIONAL HYDRAULIC VALVE PLUMBING INSTRUCTIONS
A. Mount valve assembly to valve plate using fas- ten ers provided.
B. Plumb valve as shown in Figure
C. This valve is set for an open center tractor hydraulic system. If tractor has a closed center hydraulic system, a closed center plug must be installed.
Figure 5-6 Walvoil Hydraulic Control Valve
7/8” ORB to 3/4” JIC
Note: Single handle control shown. Dual handle control plumbs the same as shown.
D. Remove open center plug.
E. Install the closed center plug furnished with valve. Note: When converting to closed center con- figuration open center plug is removed from valve and installed in sleeve of closed center plug assem- bly.
F. Install valve operational decal on valve shield.
HOSE COLOR CODES
Red - Rod End of Lift Cylinder
Green - Head End of Bucket
Blue - Head End of Lift Cylinder
Yellow - Rod End of Bucket
NOTE:
When converting to closed center configuration open center plug is removed from valve and installed in sleeve of closed center plug assembly.
To Presure Outlet
To Return Inlet
90° Elbow 1/2” NPT to 3/4” JIC
Attach Quick Couplers to these fittings. (Quick couplers not supplied in kit.)
Open Center Plug
Closed Center/Power Beyond Plug
NOTES:
1.When attaching a loader valve to the rear remotes of the tractor, a power beyond kit is not required. (Figure
2.A power beyond kit is NOT required on tractors with a CLOSED center hydraulic system. The loader valve may be attached to the tractor at the rear remotes or, at another hydraulic source recommended by the tractor manufacturer.
3.If Power Beyond System is used, refer to basic Power Beyond plumbing instructions on the following page. (Figure
4.If the tractor has a Pressure Flow Compensated System (PFC) - the loader valve MUST be connected to the TRACTOR REMOTES.
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