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MacDon M155 - Page 182

MacDon M155
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OPERATION
WARNING
Avoid driving the machine with h eader removed. Removing header decreases the weight on drive
wheels, reducing steering control.
If necessary to drive machine with header removed, use transmission eld speed range, do NOT exceed
1500 rpm engine speed, and avoid loose gravel and slopes.
Never use windrower as a towing vehicle when header is removed, except as instructed in Towing Header
with Windrower, page 178. The re is insufcient weight on the drive wheels to provide steering control.
Because of windrower shape characteristics, a roll-over protected (ROPS) cab is not required. If
operating with header removed, be aware that cab structure will NOT withstand a roll-over.
CAUTION
HYDROSTATIC S
TEERING
Turning the steering wheel varies the hydraulic ow to one drive wheel relative to the other drive wheel.
The reaction of this type of steering is different from conventional steering mechanisms.
CAUTION
With the engine running, moving the ground speed lever out of N-DETENT unlocks steering. Any
movement of steering wheel will then cause the machine to move, even if the ground speed lever has
not been m oved forward or rearward from the NEUTRAL position.
Hydrostatic steering is more sensitive than mechanical steering.
Steering is opposite to normal when driving in reverse.
The brakes are only on when the ground speed lever (GSL) is in N-DETENT and the steering wheel is
centered and locked.
DANGER
NEVER move the
ground speed lever or steering wheel until you are sure all bystanders have cleared
the area.
Makesurearea
is clear before making turns, as the ends of a header travel in a large arc.
Check the ope
ration of all controls in a safe, clear area before starting work.
Do know the ca
pacity and operating characteristics of your machine.
•DoNOTallowr
idersinoronthemachine.
Do NOT opera
te unless seated in the operator's position.
•DoNOTattem
pt to get on or off a moving windrower.
AVOID sudde
n starts and stops.
•AVOIDincl
ines, ditches, and fences.
•DoNOTrapi
dly accelerate or decelerate when turning.
REDUCE you
r speed before turning, crossing slopes, or travelling over rough ground.
•DoNOTallo
w anyone to stand behind the machine while operating. Foreign objects may be
forcibly
ejected.
147649 166 Revision A

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