New Holland WorkMaster 50 Service Manual page 455

Draft control operation
Draft control is most suitable for mounted or semi-
mounted implements operating in the ground. Changes
in the working depth or changes in soil resistance will
cause draft loading on the implement to increase or
decrease.
Move the position control lever (1) fully forward. Lower
the implement in to the work using draft control lever (2).
Push the lever forward to increase the draft loading. Pull
rearwards to reduce the draft loading. Forward movement
of the draft control lever will increase the implement depth
and rearward movement will reduce the depth.
Once set, tractor hydraulic system will automatically ad-
just the implement depth to maintain an even pull on the
tractor and minimise wheel slip.
Combined position and draft control opera-
tion
On very light soil or varying soil types in the same field,
it may be necessary to use the draft control and position
control in combination. When starting work, lower the im-
plement to the required depth by means of the draft control
lever (1).
When the implement reaches the required depth, raise
the position control lever (2) back until the lift arms tend to
rise. The lift linkage is now in draft control but the position
control function prevents the system from sinking too deep
when draft reduces.
Float operation
Move the position control lever (1) and the draft control
lever (2) fully forward. The 3-point linkage will now be
free to 'float' or follow the ground contour, a feature useful
for scraper blades etc.
Response control
The response control knob (1) varies the speed of drop of
the lower links.
Clockwise rotation - Decreases speed of drop
Anti-clockwise rotation - Increases speed of drop
NOTE: To lock implements in transport position when driv-
ing on road, fully raise position control lever (1), 6 and
screw in (rotate clockwise) knob (1), 7.
Hydraulic systems - Hydraulic hand control
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