215651 263 Revision B
Problem Solution
Refer to
Symptom: Ragged or uneven cutting of crop
Excessive knife wear
Replace knife
• 5.5.3 Removing Knife, page 134
• 5.5.6 Installing Knife, page 136
Loose or worn knifehead pin or
drive arm
Tighten or replace parts
• 5.5.4 Removing Knifehead Bearing,
page 134
• 5.6.1 Knife Drive Box, page 146
Bent cutterbar
Straighten cutterbar See your MacDon Dealer
Symptom: Excessive breakage of knife sections or guards
Knife hold-downs not properly
adjusted
Adjust knife hold-downs 5.5.8 Knife Hold-Downs, page 141
Cutterbar operating too low in stony
conditions
Raise cutterbar using skid shoes Cutting on the Ground, page 61
Float is set too heavy Adjust springs for lighter float 3.7.2 Header Float, page 63
Bent or broken guard Straighten or replace guard
5.5.7 Knife Guards, page 137
Header angle too steep Flatten header angle Adjusting Header Angle, page 64
TROUBLESHOOTING
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