
3.7.8
Knife Speed
The header knife drive is powered by the
fl
oat module’s hydraulic pump which is driven by the combine feeder
house. There is no separate adjustment to control the knife speed.
IMPORTANT:
For variable speed feeder houses, the rpm values in
Table
3.8 Feeder House Speed, page 77
represent the
MINIMUM feeder house speeds. Reduce the
fl
ow to the
knife drive motor if operating above these rpm values to
prevent knife over-speeding and knife failure.
Table 3.8 Feeder House Speed
Combine
Feeder House Speed
(rpm)
John Deere
490
Case IH
580
Gleaner
625
Massey Ferguson
625
Challenger
625
New Holland
580
Lexion
10
420
IMPORTANT:
Ensure the knife speed is within the range of rpm values
in Table
3.9 FD1 Header Knife Speed, page 77
. Refer
to
IMPORTANT:
Under normal cutting conditions, knife speed taken at
the knife drive pulley should be set to 600–640 rpm
(1200–1280 spm). If set to low side of chart, you could
experience knife stalling.
Table 3.9 FD1 Header Knife Speed
Recommended Knife Drive
Speed Range (rpm)
Header Size
(ft.)
Single-Knife
Drive
Double-Knife
Drive
30
600–700
—
35
550–650
—
40
525–600
550–700
45
—
550–700
Checking Knife Speed
DANGER
To avoid bodily injury or death from unexpected start-up of machine, always stop engine and remove key
from ignition before leaving operator’s seat for any reason.
10. The rear shaft speed on Lexion combines is 420 rpm (speed shown on cab display monitor also will be 420).
The output shaft speed is actually 750 rpm.
147831
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Содержание FlexDraper FD1 Series
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