------------------------------SECTION
A
NOTE: Before
connecting
remote
cylinder
hoses,
stop
the
engine
and
thoroughly
clean
the
connec-
tions
to
prevent oil
contamination.
Remote
cylin-
ders
are
operated by oil
drawn
from
the
tractor
hydraulic
system,
therefore,
always
check
and
re-
plenish
the
hydraulic
system
oil ofter
remote
cyl-
inder
equipment
has
been
connected
and
cycled
a
few
times.
Operating
the
tractor
with
a
low
oil
level
may
result
in
damage
to
the
rear
axle.
To
connect
a
remote
cylinder,
insert
the
fee<for
re-
turn
hose
through
the
slit
in
the
appropriate
dust
cap,
ensuring
it
is
correctly
seated
in
the
coupler.
Pull
the
shut-off lever
down
to
permit oil
flow.
NOTE:
Some
implements
require
the
use
of
an
additional,
remotely
mounted
control
valve.
When
such
a
valve
is
plumbed
in
to
receive
an
oil
supply
from
the
tractor
de
luxe
remote
valve,
it must
be
of
the
open
center
type.
A WARNING:
Never
work
under
equip-
.a
ment supported
by
a
hydraulic
device
be-
cause
it may
drop
tf
the
control
is
actuated
(even
with
the
engine
stopped)
or
in
the
event
of
hose
failure,
etc.
Always
use
a secure support for
equipment
which
must
be
serviced
while
in
the
raised
position.
The
flow
control valve
meters
the
flow
of oil
to
the
remote.
cylinder
and
thus
controls
the
rate
of
re-
sponse
of
the
cylinder.
Tum the
flow
control
knob
counter-clockwise
(hare
symbol
uppermost)
to
increase
the
rate of oil
flow.
Tum
the
knob
clockwise
(tortoise
symbol
uppennost) to
decrease
the
rate
of
flow.
See
Sec-
tion C Specifications,
for
flow
rates.
Operating Double-Acting Cylinders
Connect
the
feed hose
from
a double-acting
cylin-
der to
the
upper coupler
on
a
remote
control
valve
and
the
retum
hose
to
the
lower coupler on
the
same
valve,
as
previously
described.
To
extend
a
double-acting cylinder,
pull
the control lever
back
to
the
'extend' position.
To
retract a double-acting cylinder, push the
con-
trol lever
forward
past neutral
to
the
'retract'
posi-
tion.
Further
forward
movement of
the
lever will select
'float'
which
will
allow
the
cylinder to extend or
retract
freely.
This feature
is
of assistance
when
carrying out
work
with equipment such
as
scraper
blades
and
loaders.
Operating Single-Acting Cylinders
Connect
the
hose
from
a single-acting cylinder
to
the
upper
coupler on a
remote
control valve,
as
previously
described.
To
extend
a single-acting cylinder, pull the
con-
trol lever
back
to
the 'extend' position.
Manually
return
the
lever
to
the
neutral position
to
stop
the
cylinder before it is
fully
extended or
al-
low
the
valve
to
return
to
the
neutral automatically
when
the
cylinder reaches
the
end
of
its
stroke.
To
retract a single-acting cylinder, move the lever
fully
forward
to
the 'float' position.
IMPORTANT: Always
use
the
'float' positionto
lower
a single-acting
cylinder.
The
'retract po-
sition
is
for double-acting cylinders only.
Operating Continuous Flow Hydraulic Equip-
ment
Continuous
flow
hydraulic equipment (e.g:
hy-
draulic
motors)
should
be
connected to the
remote
control
valve
couplers
with
the
pressure hose
con-
nected
to
the
lower coupler
and
the
return
hose
connected
to
the
upper coupler
of
the
same
valve.
With
the
remote
control
valve
lever fully forward
in
the
'float' position
the
motor
will
be
stationary.
The
hydraulic
motor
will
operate
if
the lever
is
pulled
rearwards
to
the
'retract• position.
29
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