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Optional Auxiliary By-Pass Control Valve (PN: 9PKFELBV)
• Installation of this Curtis Auxiliary Control Valve retains the Tractor/Loader's Bucket Cylinders for down pressure
• The Curtis Auxiliary Control Valve is Universal in nature.
• Carefully consider mounting location before proceeding.
• Due to Tractor variations, Curtis only supplies Hoses and Fittings between the Angle Cylinders and Curtis By-
Pass Relief Valve. All additional Hoses, Fittings and Couplings are Dealer/Customer supplied.
1.)
Determine convenient location to mount Auxiliary Control Valve.
If Loader is Quick Attach Style, consider mounting Valve to remain with Tractor/Loader when detached.
2.)
Disconnect Pressure Supply Line from existing Tractor/Loader Valve.
3.)
Route Tractor/Loader Pressure Supply Line to Inlet Port marked
"IN"
on Auxiliary Control Valve.
4.)
Route a Dealer supplied Line from Outlet Port marked
"OUT"
on Auxiliary Control Valve to Pressure Port on
existing Tractor/Loader Valve.
5.)
Route two additional Dealer Supplied Hoses from Ports marked
"A"
and
"B"
on existing Tractor/Loader Valve
down along Tractor/Loader Arms to corresponding
"A"
and
"B"
ports on Curtis By-Pass Relief Valve.
Curtis Auxiliary By-Pass Control Valve Port designations are for reference only.
6.)
Route Curtis Supplied Angle Hoses from
"C"
and
"D"
Ports on Curtis By-Pass Relief Valve to Left and Right
Angle Cylinders.
7.)
Check all Hydraulic connections and test operation. Inspect for leaks.
Seal all N.P.T. (National Pipe Thread) connections with a Paste Type Thread Sealer
(e.g. 3M, Great White) DO NOT use Teflon Tape. Teflon Tape may contaminate Hydraulic
System and cause a malfunction.
IMPORTANT
Figure 16 . Hydraulic Routing Diagram
A
B
D
C
To Control Valve
Right Angle Function
To Control Valve
Left Angle Function
A
B
IN
OUT
Tractor Hydraulics
Pressure Hose
To "B" Port on
By-Pass Relief Valve
To "A" Port on
By-Pass Relief Valve
Attach Control
Lever Here
To Tractor
Loader Valve "IN"
SUPPLIED HOSE
SUPPLIED HOSE
Left
Angle
Cylinder
Right
Angle
Cylinder
Auxillary Loader Control Valve
Curtis By-Pass Relief Valve
NOTE
IMPORTANT
