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61
Revision A
5.7
Checking and Adjusting Draper Seal
Maintain the deck height such that the draper runs just below the cutterbar.
1014214
A
B
Figure 5.21: Draper/Cutterbar Gap
IMPORTANT:
New factory-installed drapers are pressure and heat checked at
the factory. The gap between the draper (A) and cutterbar (B) is
set to 1
–
3 mm (1/32
–
1/8 in.). To prevent material from entering
the drapers and cutterbar, you may need to decrease the deck
clearance to 0 mm (0 in.) after an initial break-in period of
approximately 50 hours.
1.
Check deck height. Draper (A) should run just below
cutterbar (B) with a gap of 1
–
3 mm (1/32
–
1/8 in.) between
the top of deck front track and cutterbar.
•
If deck height is acceptable, skip the remaining steps
and proceed to
5.8 Checking and Adjusting Skid Shoe
.
•
If deck height is
NOT
acceptable, adjust seal as
described in the following steps:
1014218
A
Figure 5.22: Draper Deck Supports
NOTE:
Take measurement at deck supports (A) with the header in
working position. There are between two and five supports
per deck depending on header size.
2.
Loosen tension on drapers. For instructions, refer to
Adjusting Draper Tension, page 59
1009729
A
B
Figure 5.23: Draper and Cutterbar
3.
Lift draper (A) up at front edge past cutterbar (B).