Operator`s manual

OPERATION
Form 169000 / 169040 85 Revision C
6.17.9 Header Flotation
Header flotation springs are normally set so
70 lbf (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.
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.
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 your
Self-Propelled Windrower Operator’s 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 weight transfers to
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.
CAUTION
To prevent accidental movement of
windrower, place all controls in NEUTRAL or
in PARK, engage park brake (if applicable),
shut off engine, and remove key.
a. Position header directly behind tractor, and raise
header fully.
b. Engage lift cylinder lockouts, stop engine, and
remove key.
c. Back jam-nuts (A) “away” from spring.
d. To increase flotation, turn adjuster bolts (B)
clockwise (further into spring). To decrease
flotation, turn adjuster bolts counter clockwise.
NOTE
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.
NOTE
Other operating variable adjustments
may affect float setting. Check the float
and re-adjust if necessary after
adjusting reel position, cutting height, or
header angle.
Also, if using a tractor with drawbar
height different than 16 in. (406 mm)
flotation will be affected. Adjust as
required.
B
A