CONTROLS, INSTRUMENTS
..
AND
OPERATION--
Standard
Remote Control Valve Application
Chart
Control
'Quick-
Valve Cylinder
Float
drop'
Type
Application(s)
Valve Valve
Single-Spool
One
Double-Acting
NIA
Closed
with
Detents
One
single-Acting
NIA
Open
Two
Double-Acting Closed Closed
Double-Spool
One
Double-Acting
with
Detents
One
Single-Acting
Closed Open
Two
Single-Acting
Open
Open
the hexagon head adjusting
screw
counter-clock-
wise. To close the valve, tum the
screw
clockwise.
See Figure
27.
Implement down pressure may
be
varied
by
ad-
justment
of
the
float valve between
fully
open and
fully
closed.
To operate
a
remote
control valve, connect
the
re-
mote cylinder
feed
hose
to
the
lift coupler, Figure
28, by inserting the hose through the slit in 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 black
dust
caps.
If
a double-spool valve is installed, a second pair
of
couplers
are
mounted to
the
left
of
the
hydraulic
lift rocker,
as
shown in Figure
28.
A WARNING: Before
connecti.ng
or
dis-
411a
connecting hydraulic
hoses
at
the
remote
cylinders,
stop
the
engine and
relieve
the
pressure
in the circuit
by
moving
the
remote
control
valve
lever(s) fully forward
to
the
'float' position
then
26
Hose
Installation
Single-Spool Valves
or
Outboard
Spool
of
Inboard
Spool
of
Double-Spool Valves Double-Spool Valves
Lift Drop
Lift
Drop
Coupler
Coupler Coupler
Coupler
Lift Hose
Drop Hose
N/A
N/A
Lift
Hose
None
N/A
N/A
Lift
Hose
Drop Hose
Lift
Hose
DlDpHose
Lift Hose
Drop
Hose
Lift Hose
None
Lift Hose
None
Lift
Hose
None
back
to
neutral.
Ensure
no
one
will
be
injured
by
moving equipment
when
relieving pressure in
the
system.
Before
disconnecti.ng
cylinders
or equipment
en-
sure
the
equipment
or
implement
is supported
se-
curely.
Never
work under
equipment
supported by
an
hy-
draulic
device because it
may
drop
if
the control
is
actuated
(even
with
the
engine
stopped) or in the
event
of
a
hose
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,
therefor,
always
check
and
top
up
the
hydraul.ic
system oil qfter
remote
cylinder equipment
has
been
connected and
cycled
a
few
times.
Ensure
tha.t
oil contained within the remote cylin-
ders
is
clean,
has
not
broken
down
due to
long
storage and is
of
the
correct
grade.
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