Header Flotation; Flotation Adjustment - Self-Propelled; Flotation Adjustment - Pull-Type; Feed Pan / Rock-Drop Tine Position - MacDon A30-S Operator's Manual

6.17.9

Header Flotation

Header flotation springs are normally set so 70
lbf force (311 N) is required to lift either end of
the header just off the ground. In rough or stony
conditions, it may be desirable to change setting
to 35-50 lbf (156-222 N) to protect cutting
components.
When float setting is light, it may be
necessary to use a slower ground speed
to avoid excessive bouncing and leaving a
ragged cut.
6.17.9.1 Flotation Adjustment – Self-Propelled
The header float can be hydraulically adjusted
from the cab without shutting down the
windrower. To adjust the float, refer to M150 &
M200 Self-Propelled
Manual.
6.17.9.2 Flotation Adjustment – Pull-Type
IMPORTANT
Float setting (or lifting force) must be
equal on both ends of the header. LH and
right ends require different spring lengths
to achieve equal float at both ends.
IMPORTANT
Because header
outside tire whenever header is swung
from one side to the other, tires must be
fully inflated (30 psi (207 kPa)) to minimize
effects on header float.
a. Position header directly behind tractor.
b. Raise header fully.
A
c. Back jam-nuts (A) away from spring.
d. To increase flotation, turn adjuster bolts (B)
clockwise (further into spring).
flotation, turn adjuster bolts counterclockwise.
Form # 169000
NOTE
Windrower Operator's
weight transfers
B
To decrease
OPERATION
Springs must be adjusted in pairs.
e. Tighten jam-nuts (A) against spring inserts to
secure the setting.
f. Lower header and check header flotation at
each end.
Other operating variable adjustments may
affect float setting. Check the float and
readjust if necessary after adjusting reel
position, cutting height, or header angle.
Also, if using a tractor with drawbar height
different than 16 inches (406 mm) flotation
will be affected. Adjust as required.

6.17.10 Feed Pan / Rock-Drop Tine Position

The rear of the feed pan is adjustable up and
down to raise or lower the feed pan and rock
drop tines.
• Lowering the feed-pan helps prevent
• Raising the feed-pan helps to form an
To avoid bodily injury or death from
unexpected
to
machine; stop engine, remove key and
engage header lift cylinder stops before
going under.
a. Raise header fully and engage header lift
cylinder stops.
b. Loosen nut (C) both sides and align pointer (D)
at each side of rock drop tine support with one of
the slots (E) to match crop condition.
c. Tighten hardware on both sides.
d. Disengage header lift cylinder stops.
71
NOTE
NOTE
plugging in heavy crop.
even windrow in light crop.
WARNING
start-up or
D
E
CROP
Light
Normal
Heavy
fall of raised
C
SLOT
Upper
Center
Lower
Model Year - 2009