MacDon M155 Operators Manual - Manual (Page 208)

OPERATION
1. Remove hairpin (A) from clevis pin (B) and remove pin
from left and right header boots (C) on header.
Figure 4.187: Header Boot
CAUTION
To prevent damage to the lift system when lowering
header lift linkages without a header or weight box
attached to windrower, ensure that float engagement
pin is installed in storage location (B) and NOT
installed at hole location (A).
Figure 4.188: Header Lift Linkage
CAUTION
Check to be sure all bystanders have cleared the area.
2. Start the engine and activate HEADER DOWN
button (A) on the ground speed lever (GSL) to fully
retract header lift cylinders.
Figure 4.189: GSL
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Revision A