SECTION
B THE HYDRAULIC SYSTEM
AUXILIARY SERVICES CONTROL VALVE (Figure B1)
This control
(5)
allows ihe tractor's
hydraulic
power to be used to operate
external
cylinders on such implements as loaders and tipping
trailers.
The
auxiliary services control valve positions are:
Ford
2000 (where
fitted),
3000 and
4000:
1. 'IN' to operate the 3-point linkage.
2. 'OUT' to operate external cylinders.
3. 'HALF-OUT to operate the 3-point linkage and external cylinders
together.
Ford 5000
:
1
.
'IN' to operate the 3-point linkage.
2. 'OUT' to oporato external cylindors.
3.
A
joint service
is possible by using a second jack tapping point
(6)
forward of the standard take-off point
(7).
The
main control lever is used to obtain the above services.
OPERATION OF EXTERNAL CYLINDERS
1,
2
3.
4.
Select draft control and move the hydraulic main control lever
to the
'neutral' position on the quadrant i.e.
where
neither
raising nor lowering
takos place.
Move the adjustable stop on the quadrant to mark this position
so that
neutral can be readily located.
To extend the cylinder, pull
the
auxiliary
service control knob out, and
raise
the hydraulic main control lever above the neutral position. When
the
external
cylinder is fully extended return the hydraulic main
control lever
to the neutral position to avoid possible damage to
the
relief
valve.
If the 3-point linkage is fully raised
when using the external services it will
be necessary
to
move the
main control lever past the fixed stop
at
the
top
of the quadrant in order to operate the external cylinders.
To retract the external cylinders, move
the
main
control lever below the
neutral position on the quadrant.
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