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Revision A
8.15
Checking and Adjusting Draper Seal
Maintain the deck height such that the draper runs just below the cutterbar.
IMPORTANT:
New factory-installed drapers are pressure and heat checked at the factory. The gap (deck seal) between draper and
cutterbar is set to 0
–
3 mm (0.03
–
0.12 in.) at the factory to prevent material from entering into the side drapers and stalling
them. When installing new drapers, however, it is
NEVER
acceptable for the gap to be less than 1 mm (0.04 in.) because
new drapers are very tacky and there can be a buildup of powder coat on the underside of the cutterbar that can cause
excessive drag and extremely high running pressure. A gap of 1
–
3 mm (0.04
–
0.12 in.) is acceptable. Follow this procedure
to check the gap and adjust if required.
1005955
A
B
C
Figure 8.48: Draper Seal
1.
With the header in working position, check that
clearance (A) between draper (B) and cutterbar (C) is
1
–
3 mm (0.04
–
0.12 in.).
•
If the deck height is acceptable, skip the remaining
steps and proceed to
.
•
If the deck height is
NOT
acceptable, adjust the seal as
described in the following steps:
1014218
A
Figure 8.49: Draper Deck Supports
2.
Take measurement at deck supports (A) with the header in
working position. Depending on the header size, there are
between two and eight supports per deck.
3.
Loosen the draper tension. For instructions, refer to
Adjusting Draper Tension, page 284
.
