MacDon D50 - Header and Drapers; Adjusting; Hydraulic; Draper Speed

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6.4 Header and Drapers
Use the following tables to determine the header and draper problems and the recommended solutions.
Problem Solution Refer to
Symptom: Insufficient Header Lift
Low relief pressure Increase relief pressure See your MacDon Dealer
Symptom: Insufficient Draper Speed
Speed control set too low Increase control setting 3.12.6 Draper Speed, page 51
Relief pressure too low
Increase relief pressure to
recommended setting
See your MacDon Dealer
Windrower header drive too slow
Adjust to correct speed for windrower
model
Refer to windrower operator’s manual
Worn out gear pump
Replace gear pump See your MacDon Dealer
Pressure compensator (V7) set
too low
Adjust to increase setting Refer to windrower operator’s manual
Symptom: Draper Will Not Move
Drapers are loose Tighten drapers
4.9.1 Adjusting Draper Tension, page
181
Drive or idler roller wrapped with
material
Loosen draper and clean rollers
4.9.1 Adjusting Draper Tension, page
181
Slat or connector bar jammed by
frame or material
Loosen draper and clear obstruction
4.9.1 Adjusting Draper Tension, page
181
Roller bearing seized Replace roller bearing
4.9.7 Draper Roller Maintenance, page
189
Low hydraulic oil
Fill windrower reservoir to full level
See your MacDon Dealer
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
3.12.8 Reel Height, page 54
Material not feeding evenly off knife Install stub guards
• 5.2.3 Stub Guard Conversion Kit,
page 248
• 4.7.7 Knife Guards, page 145
• See your MacDon Dealer
Symptom: Hesitation in Flow of Bulky Crop
Header angle too low Increase header angle Controlling Header Angle, page 49
Material overload on drapers
Increase side draper speed 3.12.6 Draper Speed, page 51
Material overload on drapers Install upper cross auger
5.4.8 Upper Cross Auger, page 253
Material overload on drapers Add flighting extensions See your MacDon Dealer
Symptom: Drapers Back Feed
Drapers running too slow in
heavy crop
Increase draper speed 3.12.6 Draper Speed, page 51
Symptom: Crop is Thrown Across Opening and under Opposite Side Draper
Drapers running too fast in light crop Reduce draper speed 3.12.6 Draper Speed, page 51
Symptom: Material Accumulates inside or under Front Edge of Draper
Deck height improperly adjusted Adjust deck height 4.9.8 Adjusting Deck Height, page 195
TROUBLESHOOTING