MacDon PW7 Pick-Up Header - Manual (Page 36)

SECTION 4 - ADJUSTMENTS
Form 169149 Revision E 30
the pickup rear roller is at the 14” mark. See
following illustration.
Components in Neutral Position
To set the AHC to this position:
1.
The AHC switch in the combine should be
turned off and the draper belts properly
tensioned. (See Section 4.5) Each
subsequent time the belts are adjusted, the
AHC should be adjusted as well
2. Lift the header until the rear draper roller is
14” from the ground.
3. Loosen slightly, both nuts that hold the
potentiometer to the mount bracket. Rotate
the assembly around the left side bolt. The
right bolt will move along the slot. When
the arm on the potentiometer is
perpendicular to the potentiometer bracket
it is in the neutral position.
4. Retighten the nuts so that the potentiometer
is secure.
5. Refer to your combine operator’s manual
for the in-cab calibration procedure.
6. Test the function of the AHC. If the front
end of the pick-up goes up (as if going up a
hill) the header height should move up to
compensate. If the pick-up front goes
down (as if dropping into a hole) the
header should drop to compensate.
4.8 AUGER FINGER ADJUSTMENT
ATTENTION : Do not adjust fingers to
less than the minimum 1/4-inch clearance
to the header bottom.
Finger Adjustment Procedure
a) Loosen the clamping nut.
Finger Adjustment
b) Move the handle in the desired direction.
Counterclockwise = Fingers retract
Clockwise
= Fingers extend
c) When the desired position is found,
tighten the clamping nut.
P00503
CLAMPING NUT
Potentiometer Arm
Mount Bracket Rotate Around
This Bolt
P00665