Buhler 2180 - Manual (Page 138)

SECTION 2 - OPERATION
2-92
3. Once the required implement working height has
been established, adjust the lift control lever stop, 5,
to set the implement height. To adjust, loosen the
knob on the stop and move it so that it is against the
front edge of the lift control lever. Retighten the
knob. Whenever the lift control lever is pulled
rearwards to raise the implement, the implement will
always return to the same working height when the
lever is pushed forward to contact the stop.
NOTE: If required, the lift control lever may be eased
sideways (to the left) to bypass the adjustable stop.
4. Upon reaching the headland, use the raise/work
switch to raise and lower the implement.
IMPORTANT: Once the correct working depth is
established, the stop set, and the height limit is set,
it is recommended that the FAST RAISE/WORK
switch be used. Repeated movements of the control
lever against the stop will eventually move the stop
and change the depth setting.
WARNING
When transporting equipment on the three-point
linkage, select position control, raise the imple-
ment and set the adjustable stop, 5, against the
front edge of the lift control lever to prevent
accidental forward movement of the lever which
could result in attached equipment lowering and
becoming damaged, damaging the road surface or
causing personal injury. Set the raise/work switch
to the raise position as an additional transport
lock.
DRAFT CONTROL OPERATION
(If Equipped)
NOTE: See DETERMINING 3-POINT HITCH MODE
OF OPERATION in this section for procedures to
verify if draft control operation is needed for the
implement being used.
To operate in draft control, adjustment of the
draft/position sensitivity knob, 4, is required. The
following table may be used as a guide to adjust the
settings to suit the implement and field conditions:
Implement Soil Position/
Draft Knob
Fully mounted - clay soil 3-4
- sandy soil 2-3
Semi-mounted - clay soil 5-6
- sandy soil 4-5
Position 6 on the position/draft sensitivity knob (fully
clockwise, decal indicating plow engaged with soil) is
the most reactive draft setting and variations in soil
density will cause the hydraulic system to respond
with large movements of the linkage and attached
implement.
Turning the position/draft sensitivity knob counter-
clockwise (towards position 1) will progressively
decrease the amount and rate of linkage movement
relative to variations in soil density.
Moving the lever forward increases the load
demanded from the hitch and moving the lever
rearward decreases the load demanded.
To set the draft control system perform the following
procedures:
1. Adjust the position/draft sensitivity knob to the
desired setting, using the table listed as a guide.
2. Drive the tractor into the field and lower the
implement by pushing the lift control lever, 1,
forward until the implement load causes the
tractor wheel slip to increase.
3. Pull back on the lift control lever until the
implement starts to run more shallow and the
wheel slip is acceptable.
4. Make slight adjustments to both the lift control
lever and the position/draft sensitivity knob to
achieve the desired performance.
NOTE: Changing the position/draft sensitivity knob
setting may require slight changes in the lift control
lever position to maintain the desired implement
working depth.
NOTE: For optimum draft control performance both
the lift control lever and the position/draft sensitivity
knob need to be set properly.
5. Once the required implement draft operation has
been established, adjust the lift control lever
stop, 5. To adjust, loosen the knob on the stop
and move it so that it is against the front edge of
the lift control lever. Retighten the knob.
Whenever the lift control lever is pulled
rearwards to raise the implement, the implement
will always return to the same draft operation
when the lever is pushed forward to contact the
stop.
NOTE: If required, the lift control lever may be eased
sideways (to the left) to bypass the adjustable stop.