MacDon 3020 Pull-Type Windrower - Manual (Page 72)

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MAINTENANCE/SERVICE
DRAPERS AND DRAPER DRIVE (continued)
Replacing Drapers
When installing drapers:
1. Right and left drapers are different lengths
(except for 36 ft. unit). Be sure you have them
properly positioned before cutting a draper you
think is too long.
2. Install screws (B) with heads facing direction of
travel.
Draper Drive Belts
Draper drive belt idlers are spring-loaded to
provide belt tension. No tension adjustment is
required.
To replace belt:
1. Use box end or socket wrench (A) to lift idler
pulley (B), allowing removal and installation of
belt at drive roller (C).
2. For left hand draper drive belt, remove shaft
coupler (D), remove belt from shaft pulley, and
replace with new belt. Reinstall shaft coupler
(D).
INSTALL DRAPERS CORRECTLY
LIFT IDLER TO REMOVE BELT
A
C
B
LEFT HAND DRAPER DRIVE BELT REMOVAL
D