MAC215990
473
Revision A
6.4
Troubleshooting Header and Drapers
Use the following tables to determine the header and draper problems and the recommended repair procedure.
Troubleshooting
–
Header and Drapers
Problem
Solution
Refer to
Symptom: Insufficient header lift
Low relief pressure
Increase the relief pressure
Combine Dealer
Symptom: Insufficient side draper speed
Speed control set too low
Increase the speed control setting
3.9.7 Side Draper Speed, page 135
Combine header drive too slow
Adjust to the correct speed for the
combine model
Combine operator
’
s manual
Symptom: Insufficient feed draper speed
Relief pressure too low
Test the feed draper hydraulic system
See your MacDon Dealer
Combine header drive too slow
Adjust to the correct speed for the
combine model
Combine operator
’
s manual
Symptom: Feed draper will not move
Drapers are loose
Tighten the drapers
4.10.2 Checking and Adjusting Feed
Draper Tension, page 347
Drive or idler roller wrapped with
material
Loosen the draper and clean the
rollers
4.10.2 Checking and Adjusting Feed
Draper Tension, page 347
Slat or connector bar jammed by
frame or material
Loosen the draper and clear the
obstruction
4.10.2 Checking and Adjusting Feed
Draper Tension, page 347
Roller bearing seized
Replace the roller bearing
Replacing Feed Draper Idler Roller
Bearing, page 360
Low hydraulic oil
Fill the combine hydraulic oil
reservoir to the full level
Combine operator
’
s manual
Incorrect relief setting at flow
control valve
Adjust the relief setting
MacDon Dealer
Symptom: Side Draper stalling
Material not feeding evenly off knife
Lower the reel
Material not feeding evenly off knife
Install short knife guards
4.8.8 Short Knife Guards and Hold-
Downs, page 328
Symptom: Hesitation in the flow of bulky crop
Header angle too low
Increase the header angle
Material overload on drapers
Increase the side draper speed
3.9.7 Side Draper Speed, page 135
Material overload on drapers
Install an upper cross auger
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