MAC215990
348
Revision A
1027872
A
B
Figure 4.187: Feed Draper Tensioner
5.
Check the position of spring retainer disc (A). If the feed
draper tracks properly and the spring retainers on both
sides of the draper are correctly positioned, then no
adjustment is necessary.
NOTE:
The starting position of spring retainer disc (A) is centered
within the U shape on indicator (B); however, the position
of disc (A) will vary after the draper tracking is adjusted.
6.
If adjustment is necessary, proceed to Step
.
Adjusting feed draper tension
1034175
A
B
C
D
E
Figure 4.188: Feed Draper Tensioner
–
Left Side
7.
Adjust the draper tension by loosening jam nut (A) and
turning bolt (B) clockwise to increase the tension on the
draper or counterclockwise to decrease the tension on the
draper. Retainer disc (C) should be in the middle of
indicator (D).
IMPORTANT:
For small tension adjustments, only one side of the draper
needs to be adjusted. For larger tension adjustments, and
to prevent uneven draper tracking, both sides of the draper
will need to be adjusted.
8.
If the draper is not tracking properly, retainer disc (C) can
be adjusted so that it is
NOT
in the middle of indicator (D),
but is within the following range:
•
Loosened to 3 mm (1/8 in.), retainer disc (C) will move
towards the front of the deck from center of
indicator (D).
•
Tightened to 6 mm (1/4 in.), retainer disc (C) will move
towards the back of the deck from the center of
indicator (D).
9.
Tighten jam nut (A). Ensure that flange nut (E) is tight
against the indicator bracket.
