215651 266 Revision B
8.4 Header and Drapers
Problem Solution
Refer to
Symptom: Insufficient header lift
Low relief pressure Increase relief pressure Refer to your MacDon Dealer
Symptom: Insufficient side draper speed
Speed control set too low Increase speed control setting 3.7.6 Draper Speed, page 66
Windrower header drive too slow
Adjust to correct speed for
windrower model
Refer to the windrower
operator’s manual
Symptom: Insufficient draper speed
Relief pressure too low
Increase relief pressure to
recommended setting
Refer to your MacDon Dealer
Windrower header drive too slow
Adjust to correct speed for
windrower model
Refer to the windrower
operator’s manual
Symptom: Insufficient draper speed
Worn out gear pump
Replace gear pump Refer to your MacDon Dealer
Pressure compensator (V7) set too low
Adjust to increase setting
Refer to the windrower
operator’s manual
Symptom: Draper will not move
Drapers are loose Tighten drapers
5.7.3 Checking and Adjusting Draper
Tension, page 177
Drive or idler roller wrapped with
material
Loosen draper and clean rollers
5.7.3 Checking and Adjusting Draper
Tension, page 177
Slat or connector bar jammed by
frame or material
Loosen draper and clear obstruction
5.7.3 Checking and Adjusting Draper
Tension, page 177
Roller bearing seized Replace roller bearing
5.7.7 Draper Roller Maintenance, page
187
Low hydraulic oil
Fill windrower hydraulic oil reservoir
to full level
Refer to the windrower
operator’s manual
Symptom: Draper stalling
Material not feeding evenly off knife
Lower reel
3.7.8 Reel Height, page 66
Material not feeding evenly off knife Install stub guards
• 5.5.7 Knife Guards, page 137
• 6.2.4 Stub Guard Conversion Kit,
page 247
• Refer to your MacDon Dealer
Symptom: Hesitation in flow of bulky crop
Header angle too low Increase header angle 3.7.3 Header Angle, page 63
Material overload on drapers
Increase side draper speed 3.7.6 Draper Speed, page 66
Material overload on drapers Install upper cross auger
6.4.3 Upper Cross Auger, page 253
Material overload on drapers Add flighting extensions Refer to your MacDon Dealer
Symptom: Drapers back feed
Drapers running too slow in
heavy crop
Increase draper speed 3.7.6 Draper Speed, page 66
Symptom: Crop is thrown across opening and under opposite side draper
TROUBLESHOOTING
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