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The in board (left hand) spool of double-spool valves
has a ‘quick drop’ facility. This feature eliminates system
back pressure and will assure the gravity return of a
single-acting cylinder, as used on implements such as
tipping trailers and semi-mounted reversible ploughs.

NOTE:

If it is required to operate single acting cylinders,

always use the inboard (left hand) spool.

The out-board (right-hand) spool of the double-spool
valve has a ‘float valve’. A partially open float valve will
allow an implement to float or follow the ground contour,
a feature that is useful for grading operations.

Implement down pressure may be varied by adjustment
of the float valve between fully open and fully closed
positions.

To operate a remote control valve, connect the remote
cylinder feed hose to the lift coupler by inserting the
hose in the coupling after removing the dust cap,
ensuring that it is correctly seated. The return hose from
a double-acting cylinder must be connected to the drop
coupler.

NOTE :

The lift couplers have blue dust caps and the

drop couplers have red dust caps.

If a second remote cylinder is to be installed it may be
operated after connection to the second set of couplers.

CAUTION :

Before connecting or

disconnecting hydraulic hoses at the remote

couplers, stop the engine and relieve the pressure in
the circuit by moving the remote control valve lever(s)
fully forward, fully rearward and then to the neutral
position. Ensure no one will be injured by moving
equipment when relieving pressure in the system.
Before disconnecting cylinders or equipment ensure
the equipment or implement is supported securely.

Never work under equipment supported by a hydraulic

device because it may drop if the control is actuated
(even with the engine stopped) or in the event of failure,
etc. Always use a secure support for equipment which
must be serviced while in the raised position.

NOTE :

Before connecting remote cylinder hoses,

thoroughly clean the connections to prevent oil
contamination. Remote cylinders are operated by oil
drawn from the tractor hydraulic system. Therefore,
always check and replenish the hydraulic system oil
after remote cylinder equipment has been connected
and cycled a few times.

Ensure that oil contained within the remote cylinders is
clean, has not broken down due to long storage and is
of the correct grade.

The ‘quick-drop’ and/or ‘float valve’ should be set as
indicated in the ‘Remote Control Valve Application Chart’
below.

Pull the control handle rearward to extend a remote
cylinder, push forward to retract a cylinder.

Each spool valve has detents that retain the control
handle in the selected retract or extend position. When
the remote cylinder reaches the end of its stroke the
handle will automatically return to the neutral position.

NOTE :

When operating in the single-acting mode with

the ‘quick’ drop’ or ‘’float valve’ open , the control handle
will not automatically return to neutral when the remote
cylinder reaches the end of the stroke. The control handle
must be manually returned to neutral to avoid ‘blowing’
the relief valve.

Never unscrew the ‘quick-drop’ valve for the continuous
return of oil to the lift port, such as in hydraulic motor
operation. It is recommended that hydraulic equipment
requiring a continuous supply of oil be operated from
the A.S.C. valve and the return pipe routed into the rear
axle oil filler port.

REMOTE CONTROL VALVE APPLICATION CHART

Cylinder

Application (s)

Float

Valve

Quick

Drop

Valve

Outboard Spool of

Double-Spool Valves

Inboard Spool of

Double-Spool Valves