Ford 3230 Operator's Manual page 46

CONTROLS, INSTRUMENTS AND.OPERATION-· - -
30. Deluxe Remote Control Valve Levers
1. Right-hand side outer
2. Right-hand side inner
Pull
a lever back back from the neutral position to
extend the cylinder
to
which it is connected. Push
the lever forward. past neutral, to retract the cylin-
der. Pushing the lever
fully
forward, beyond the
'retract' position, will select 'float' which
will
permit the cylinder to extend or retract freely,
thereby allowing equipment such as scraper
blades to 'float' or follow the ground contour.
The float position is also used for retracting a sin-
gle-acting ram cylinder, such as when lowering a
tipping trailer, etc. (see page 29).
The extend, neutral, retract and float positions are
identified by symbols on a decal adjacent to the
control levers.
A detent will hold the lever in the selected extend
or
retract
position
until
the remote cylinder
reaches the end of the stroke when the control
lever will automatically return to neutral. Alterna-
tively, the lever may
be
returned to neutral manu-
ally.
The lever
will
not return automatically from
the float position. The detent screw, Figure 31,
may be adjusted to vary the system pressure re-
quired
to
return the lever
automatically
to the
neu-
tral
position.
28
31.Deluxe Remote Control Valves
1.
Flow control valve 4. Lift coupler
2. Oil shut-off levers 5. Detent screw
3. Drop coupler
NOTE:
Do not hold the lever in the extend or re-
tract position once the remote cylinder has
reached the end of the stroke as this will cause
the
relief valve to 'blow'. Forcing oil through
the
re-
lief valve for extended periods will overheat the
oil and may lead to failure of hydraulic
and
driveline components.
Each remote control valve has
its
own flow con-
trol valve and a pair of couplers.
The
couplers are
of a self-locking design and each is provided
with
an oil shut-off lever. The couplers also
allow the
remote cylinder hoses to pull free if the implement
should become discollllected from the tractor. 1be
upper
(lift)
coupler is identified
by
an 'extended
cylinder' symbol molded into the rubber dust cap.
The lower (drop) coupler has a 'retracted
cylin-
der'
symbol.
A
WARNING:
Before connecting or dis·
4lla
connecting hydraulic hoses at the remote
cylinders, stop the engine and relieve
the pressUTe
in the circuit
by
moving the remote control valve
lever(s)fully forward to the
'float
position then
back to neutral. Ensure no one will
be
injured
by
moving equipment when relieving pressure in the
system. Before disconnecting cylinders or equip-
ment ensure the equipment or implement is sup-
ported securely.