Instruction Manual

TROUBLESHOOTING
Symptom
Problem
Solution Section
Knife hold-do
wns not
adjusted prop
erly.
Adjust hold-downs.
Checking Knif
e
Hold-Downs, p
age 149
Knives on double-knife
drive not timed.
Adjust knife timing.
Adjusting Double Knife
Timing, page 169
Knife not operating at
recommended speed.
Check engine speed of
windrower.
Refer to your windrower’s
operator’s manual
Excessive
knife wear.
Replace kn
ife.
6.5.2 Remo
ving Knife,
page 142
6.5.5 Inst
alling Knife, p age
143
Loose or worn knifehead
pin or drive arm.
Tighten or replace parts.
Removing Knifehead
Bearing
6.6.1 Knife Drive Box, page
153
Excessive h
eader
vibration
Bent cutterbar.
Straighten cutterbar. See your MacDo n Dealer
Bent or broken guard.
Straig
hten or rep l ace.
6.5.7 K
nife Guards, page
144
Worn knifehead pin.
Replace.
Removing Knifehead
Bearing
Knife back breakage
Dull knife.
Replace.
6.5.2 Removing Knife,
page 142
6.5.5 Installing Knife, p age
143
Kni
fe hold-downs not
adj
usted properly.
Adjust hold-downs.
Che
cking Knife
Hol
d-Downs, page 149
Cutterbar operating too low
in stony conditions.
Raise cutterbar, using skid
shoes.
Cutting On the Ground,
page 53
Fl
oat is set too heavy.
Adjust for lighter float.
4.
7.2 Header Float, page
55
Bent or broken guard.
Straighten or replace.
6.5.7 Knife Guards, page
144
Ex
cessive breakage
of
knife sections or
gu
ards.
Header angle too steep. Flatten header angle.
Controlling Head er Angle,
page 56
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