Allis-Chalmers WD Operating Instructions And Repair Parts Illustrations page 33

TO ADJUST FOR HOLD POSITION
To adjust for hold position turn screw '!A" in
locking to housing, turn %" out locking plates
together, turn screw 'c" in to about mid-
position and 'b"out as far as possible. If the
rate of lift is too fast, screw 'D" may be
turned inward to slow lift.
To Operate Under Hold Position
Set pump for hold position, To lower imple-
ment, move hand control lever down past the
hold or detent position (a catch on quadrant
will be noted at hold position), With the lever
in the detent position the pump is actually in
the lowering position and the load on the ram
is held by the check valve in the hold position
valve assembly. To lower, move the lever
down until desired depth is reached and then
return lever to detent position to hold ram at
required setting. To raise, move lever up
until desired lift has been secured and then
return lever to detent position to hold ram in
desired position.
The hold position valve enables the operator
to control the remote ram and hold it in any
position or partial extension.
TO ADJUST PUMP FOR DRAWBAR
Turn screw "A"out until it is free from body,
turn screw "B" until screw enters housing
separating plates, screw "G" may be in any
position, however, it is best to turn it out
against stop and screw "D" must be out to
permit maximum output.
To Obtain Drawbar Control
Set the pump for drawbar control to regulate
depth and gain weight transfer. For an
example on the pickup plow move the hand
control lever to the bottom of quadrant and
set the plow through the beaming and winging
screw to plow the desired depth and to do the
job of plowing you want it to do (Refer to Plow
Instruction Book). Then slowly, while plowing,
move the hand control lever up on quadrant
until the slack is just taken out of the lift
links. If the pull becomes greater, the plow,
through the hydraulic system, has a tendency
to raise; the weight of ground plus the weight
of plow through the linkage is transferred to
rear wheels providing more traction to get
through this tough spot which created the
additional drawbar load.
CONTROL
33
HOLD POSITION
F o r M o w e r s a n d P u l l T y p e
Implements
Turn Screw "A" into body.
Turn Screw '3" out of body lock-
ing the plotes together.
Turn Screw 9" o@ as for
OS
sible.
CONTROL
For Plows, Listers, Bedders
Turn Screw "A" out of body.
Turn Screw "B" into body sepa-
plates.
rating
Turn Screw
possible.
pos-