MacDon R80 Rotary Disc - Manual (Page 25)

OPERATION
Form # 169089
23
Model Year - 2009
c. Hold roller and remove lynch pin and adjuster
pin (A) from other side. Position roller at desired
position and reinstall adjuster pins (A). Secure
with lynch pins.
d. Repeat for roller at opposite end of header.
e. Adjust mud bar (B) by loosening nuts (C) and
then re-tighten to maintain minimum clearance
between mud bar and roller.
6.12.2.2 Skid Shoe Height Adjustment
DANGER
To avoid bodily injury or death from
unexpected start-up or fall of raised
machine; stop engine, remove key and
engage header lift cylinder stops before
going under machine for any reason.
a. Raise header fully, stop engine, and remove
key.
b. Remove lynch pin and remove adjuster pin (D)
from one side of skid shoe.
c. Hold skid shoe and remove lynch pin and
adjuster pin (D) from other side. Position shoe
at desired position and reinstall adjuster pins
(D). Secure with lynch pins.
d. Repeat for skid shoe at opposite end of header.
6.12.3 Header Angle
Header (or cutterbar) angle can be varied from
0-8° below horizontal. Choose an angle that
maximizes performance for your crop and field
conditions. A flatter angle provides better
clearance in stony conditions while a steeper
angle is required in down crops for better lifting
action.
The header angle can be hydraulically adjusted
from the cab using hydraulic cylinder without
shutting down the windrower. To adjust the
angle, refer to M150 & M200 Self-Propelled
Windrower Operator’s Manual.
6.12.4 Header Flotation
Header flotation springs are normally set so 95-
105 lbf (426-471 N) is required to lift either end
of the header just off the ground. In rough or
stony conditions, it may be desirable to maintain
a lighter setting to protect cutting components.
NOTE
When float setting is light, it may be
necessary to use a slower ground speed
to avoid excessive bouncing and leaving a
ragged cut.
The header float can be hydraulically fine-tuned
from the cab without shutting down the
windrower. To adjust the float, refer to M150 &
M200 Self-Propelled Windrower Operator’s
Manual.
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