214323 528 Revision B
8.4 Header and Drapers
Problem Solution
Refer to
Symptom: Insufficient Header Lift
Low relief pressure Increase relief pressure
Refer to the combine operator’s
manual
Symptom: Insufficient Side Draper Speed
Speed control set too low Increase control setting 3.7.7 Draper Speed, page 87
Relief pressure too low
Increase relief pressure to
recommended setting
See your MacDon Dealer
Worn out gear pump
Replace pump See your MacDon Dealer
Combine header drive too slow
Adjust to correct speed for combine
model
Refer to the combine operator’s
manual
Pressure compensator (V7) set
too low
Adjust to increase setting
Refer to the combine operator’s
manual
Symptom: Draper Will Not Move
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
Roller bearing seized Replace roller bearing
6.12.6 Side Draper Roller Maintenance,
page 454
Low hydraulic oil
Fill reservoir to full level
6.4.2 Adding Oil to Hydraulic Reservoir,
page 367
Incorrect relief setting at flow
control valve
Adjust relief setting See your MacDon Dealer
Symptom: Draper Stalling
Material not feeding evenly off knife
Lower reel
3.7.9 Reel Height, page 89
Material not feeding evenly off knife Install stub guards
7.3.3 Stub Guard Conversion Kit, page
512
Material accumulates inside or under
front edge of draper
Adjust deck height
6.12.5 Adjusting Deck Height, page
451
Symptom: Adapter Auger Back-Feeds
Auger set too high
Check reversing mechanism inside
auger
Refer to the combine operator’s
manual
Auger set too high
Lower auger
6.7.1 Adjusting Auger to Pan
Clearance, page 379
John Deere: Feeder chain running
too slow
Run feeder chain at high speed
Refer to the combine operator’s
manual
John Deere: Equipped with feeder
chain with 4 pitches per bar
Replace with six pitch per bar feeder
chain, or remove every other bar
Refer to the combine operator’s
manual
Case: Stone retarding drum installed,
or smooth feeder chain bars installed
Install standard drum or fill slots in
stone retarding drum, or install
serrated feed chain bars
Refer to the combine operator’s
manual
Symptom: Hesitation in Flow of Bulky Crop
Header angle too flat Steepen header angle
3.7.4 Header Angle, page 78
Material overload on drapers Increase side draper speed 3.7.7 Draper Speed, page 87
TROUBLESHOOTING
To Next Page
Loading...
