MacDon CA25 OM - Manual (Page 151)

SECTION 8. MAINTENANCE AND SERVICING
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149
Revision B
8.11.3 Header Draper Alignment
Each draper deck has one fixed roller and one
spring-loaded roller. The spring-loaded roller is
located at the same end of the deck as the
draper tensioner.
Both rollers can be aligned by adjuster rods so
that the draper tracks properly on the rollers.
CAUTION
To avoid personal injury, before servicing
machine or opening drive covers, follow
procedures in Section 8.1 PREPARATION
FOR SERVICING.
If the draper is tracking incorrectly, make the
following adjustments to the rollers:
TRACKING
AT
LOCATION
ADJUSTMENT METHOD
Backward
Drive Roller
INCREASE ‘X’ Tighten Nut ‘C’
Forward DECREASE ‘X’ Loosen Nut ‘C’
Backward
Idler Roller
INCREASE ‘Y’ Tighten Nut ‘F’
Forward DECREASE ‘Y’ Loosen Nut ‘F’
a. Adjust the drive roller ’X’ by loosening nuts (A),
jam nut (B) on adjuster rod, and turning the
adjusting nut (C).
b. Adjust the idler roller ‘Y’ by loosening nut (D),
jam nut (E) on adjuster rod, and turning
adjusting nut (F).
c. If the draper will not track at the idler roller end,
the drive roller is likely not square to the deck.
Adjust the drive roller, and then re-adjust the
idler.
X Y
LH DRIVE ROLLER ADJUST - RH OPPOSITE
A
B
C
LH IDLER ROLLER ADJUST
- RH OPPOSITE
D
E
F