MacDon FD75 - Header and Drapers

214323 498 Revision A
7.4 Header and Drapers
Symptom
Problem
Solution Refer to
Insufficient header lift Low relief pressure Increase relief pressure
Refer to the combine
operator’s manual
Insufficient side draper
speed
Speed control set too low
Increase control setting
3.7.7 Draper Speed, page
80
Insufficient side draper
speed
Relief pressure too low
Increase relief pressure to
recommended setting
See your MacDon Dealer
Insufficient side draper
speed
Worn out gear pump Replace pump
See your MacDon Dealer
Insufficient side draper
speed
Combine header drive
too slow
Adjust to correct speed for
combine model
Refer to the combine
operator’s manual
Insufficient side draper
speed
Pressure compensator
(V7) set too low
Adjust to increase setting
Refer to the combine
operator’s manual
Draper will not drive Drapers are loose Tighten drapers
5.12.3 Checking and
Adjusting Side Draper
Tension, page 420
Draper will not drive
Drive or idler roller
wrapped with material
Loosen draper and clean
rollers
5.12.3 Checking and
Adjusting Side Draper
Tension, page 420
Draper will not drive
Slat or connector bar
jammed by frame or
material
Loosen draper and clear
obstruction
5.12.3 Checking and
Adjusting Side Draper
Tension, page 420
Draper will not drive Roller bearing seized Replace roller bearing
5.12.6 Side Draper Roller
Maintenance, page 426
Draper will not drive Low hydraulic oil
Fill reservoir to full level
5.4.2 Adding Oil to
Hydraulic Reservoir, page
344
Draper will not drive
Incorrect relief setting at
flow control valve
Adjust relief setting See your MacDon Dealer
Draper stalling
Material not feeding
evenly off knife
Lower reel 3.7.9 Reel Height, page 84
Draper stalling
Material not feeding
evenly off knife
Install stub guards
6.3.3 Stub Guard
Conversion Kit, page 482
Draper stalling
Material accumulates
inside or under front edge
of draper
Adjust deck height
5.12.5 Adjusting Deck
Height, page 424
Adapter auger back-feeds
Auger set too high
Check reversing
mechanism inside auger
Refer to the combine
operator’s manual
Adapter auger back-feeds
Auger set too high Lower auger
5.7.1 Adjusting Auger to
Pan Clearance, page 356
TROUBLESHOOTING