TROUBLESHOOTING
7.4 Header and Drapers
Symptom
Problem
Solution Section
Insuffi cient h
eader lift
Low relief pre
ssure
Increase reli
ef pressure
Refer to the co
mbine
operator’s ma
nual
Speed c ontrol set too low
Increase control setting
3.7.6 Draper Speed, page
69
Relief p ressure t oo low
Increase relief p ressure to
recommended setting
Worn out gear pump Replace pump
See your Ma
cDon Dealer
Combine header drive too
slow
Adjust to correct speed for
combine model
Insuffi cient side draper
speed
Pressure com pensator
(V7) set too low
Adjust to increase setting
Refer to t
he combine
operator
’s manual
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
materi
al
Loosen draper and clear
obstruction
5.12.3 Adjusting Side
Draper Tension, page 335
Roller bearing seized Replace roller bearing
5.12.6 Draper Roller
Maintenance, page 340
Low hydraulic oil
Fill r
eservoir to full level
Addin
g O il, pa ge 273
Draper will not drive
Incorrect relief setting at
flow control valve
Adjust relief setting See your MacDon Dealer
Low
er reel
3.7
.8 Reel Height, page
73
Mat
erial not feeding
ev
enly off knife
Install stub guards
6.2.3 Stub Guard
Conversion Kit, page
410
Draper stallin g
Ma
terial accumulate s
in
side or under front edge
of
draper
Ad
just deck height
5.
12.5 Adjusting Deck
He
ight, page 339
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