Instruction Manual

TROUBLESHOOTING
7.4 Header and Drapers
Symptom
Problem
Solution Section
Header lift in
sufficient
Low relief pre
ssure
Increase reli
ef pressure.
See your MacDo
nDealer
Speed c on tro l set too low
Increase control setting.
4.7.6 D raper Speed, page
57
Relief pressure t oo low
Increase relief pressure to
recommended setting.
See your MacDon Dealer
Windrower header drive
too slow
Adjust to c
orrect speed f or
windrower
model.
Refer to th
e windrower
operator’
s m anual
Worn out gear pump Repla ce pump.
See your MacDon Dealer
Insuffi cie
nt draper
speed
Pressure compensator
(V7) set too low
Adjust to increase setting.
Refer to your windrower
operator’s manual
Drapers are loose Tighten drapers.
Drive or
idler rolle r
wrappe
d with material
Loosen d
raper and clean
roller
s.
Slat or connector bar
jammed by frame or
material
Loosen draper and clear
obstruction.
6.7.3 Adjusting Draper
Tension, page 178
Rolle
r b e aring seized
Repla
ce.
6.7.8
Draper Roller
Maint
enance, page 188
Low hydraulic oil
Fill win drow er reservoir to
full level.
Refer to the windrower
technical manual
Draper will not move
Incorrect relief setting at
flow control valve
Adjust relief s e tting.
See your MacDon Dealer
Refer to the windrower
technical manual
Lower reel.
4.7.8 Reel Height, page
58
Draper stalling
Material not feeding
evenly off knife
Install stub guards.
See your MacDon Dealer,
6.5.7 Knife Guards, page
144
8.2.3 Stub Guard
Conversion Kit, page
262
Header angle too low Increase header angle.
Controlling Header Ang le,
page 56
Increase side draper
speed.
4.7.6 D raper Speed, page
57
Install upper cross auger.
8.4.10 Upper Cross Auger
(UCA), page 268
Hesitation in flow of
bulky crop
Material overload on
drapers
Add flighting extensions. See your MacDon Dealer
169899 252 Revision A