MacDon A40-D - Manual (Page 61)

SECTION 6 OPERATION
169000 / 169040
59
Revision E
6.15 STEERING: PULL-TYPE
Steering the mower conditioner is controlled by
the tractor’s remote hydraulic system. This
steering system allows the mower conditioner to
follow directly behind the tractor, make a full cut
to either side, or any position in-between.
IMPORTANT
Hoses should be connected so that
moving tractor control lever (A)
FORWARD steers machine to the RIGHT,
and moving lever (A) BACKWARD steers
machine LEFT.
IMPORTANT
To allow APT to swing, the valve on the
APT must be in the working or open
position (handle in-line with APT), and the
temporary transport lock pin must be in
the storage location.
The center pivot provides the Operator the
opportunity to:
 easily move the mower conditioner into the
field position,
 make right angle turns in either direction,
 steer around objects on both sides, and
 perform straight line field cutting on either
side of the tractor.
The control is operated momentarily for
steering, and must be returned to OFF or
NEUTRAL position as soon as the mower
conditioner reaches the desired path of travel.
6.15.1 Right Side Operation: Pull-Type
Move steering lever FORWARD to achieve
desired position of mower conditioner on RIGHT
side of tractor.
To adjust tracking of mower conditioner during
right side operation, the steering cylinder clevis
can be re-positioned:
CAUTION
Stop engine, and remove key from ignition
before leaving Operator's seat for any
reason. A child or even a pet could engage
an idling machine.
a. Shut down tractor, and remove key.
b. Loosen clamping bolt (B) on clevis (C).
c. Using a wrench on the stroke control (B), rotate
cylinder rod so that clevis moves away from or
closer to the cylinder. Each turn of the rod
changes the tracking by approximately 2 in.
(50 mm).
DESIRED
TRACK
CYLINDER
EXTENSION
CLEVIS POSITION
Further RIGHT Increase
Clevis (C) Further
From Cylinder
Further LEFT Decrease
Clevis (C) Closer
To Cylinder
d. Tighten clamping bolt to 65 ft·lbf (90 N·m).
e. Re-check torque on clamping bolt after 1 hour,
and every 100 hours thereafter.
A
B
C