7.4
Header and Drapers
Symptom
Problem
Solution
Refer to
Header lift insufficient
Low relief pressure
Increase relief pressure
See your MacDon Dealer
Speed control set too low
Increase speed
control setting
Relief pressure too low
Increase relief pressure to
recommended setting
See your MacDon Dealer
combine header drive too
slow
Adjust to correct speed for
combine model
Refer to the combine
operator’s manual
Worn out gear pump
Replace gear pump
See your MacDon Dealer
Insufficient draper
speed
Pressure compensator
(V7) set too low
Adjust to increase setting
Refer to the windrower
operator’s manual
Drapers are loose
Tighten drapers
Drive or idler roller
wrapped with material
Loosen draper and
clean rollers
Slat or connector bar
jammed by frame
or material
Loosen draper and
clear obstruction
5.12.3 Adjusting Draper
Tension, page 388
Roller bearing seized
Replace roller bearing
5.12.6 Header Draper
Roller Maintenance, page
394
Low hydraulic oil
Fill combine hydraulic oil
reservoir to full level
Refer to the combine
operator’s manual
Draper will not move
Incorrect relief setting at
fl
ow control valve
Adjust relief setting
See your MacDon Dealer
Lower reel
Draper stalling
Material not feeding
evenly off knife
Install stub guards
•
•
•
or see your MacDon
Dealer
Header angle too low
Increase header angle
Increase side
draper speed
Install upper cross auger
3.12 Upper Cross Auger
(UCA), page 206
Hesitation in flow of
bulky crop
Material overload
on drapers
Add
fl
ighting extensions
See your MacDon Dealer
147831
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Revision A
Summary of Contents for FlexDraper FD1 Series
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