Cutting Action And Knife Components - MacDon D65 Operator's Manual

7.2 Cutting Action and Knife Components

Symptom
Ragged or uneven
cutting of crop
147725
TROUBLESHOOTING
Problem
Knife hold-downs not
adjusted properly
Knife sections or guards
are worn or broken
Knife is not operating at
recommended speed
Ground speed too fast for
reel speed
Reel fingers not lifting crop
properly ahead of knife
Cutterbar too high
Header angle too flat
Bent knife, causing binding
of cutting parts
Cutting edge of guards not
close enough, or parallel to
knife sections
Tangled / tough to cut crop
Reel too far back
Loose knife drive belt
Solution
Adjust hold-downs
Replace all worn and
broken cutting parts
Check engine speed of
windrower
Reduce ground speed or
increase reel speed
Adjust reel position / finger
pitch
Lower cutting height
Steepen header angle
Straighten a bent knife.
Align guards
Align guards
Install stub guards
Move reel forward
Adjust drive belt tension
241
Section
Checking Knife
Hold-Downs, page 136
5.5 Knife, page 127
Refer to your windrower
operator's manual
• 3.7.5 Ground Speed,
page 56
• 3.7.4 Reel Speed, page
56
• 3.7.9 Reel Fore-Aft
Position, page 58
• 3.7.10 Reel Tine Pitch,
page 65
3.7.1 Cutting Height, page
49
Controlling Header Angle,
page 55
5.5.7 Knife Guards, page
131
• 5.5.7 Knife Guards,
page 131
• 6.2.3 Stub Guard
Conversion Kit, page
231
• See your MacDon
Dealer
3.7.9 Reel Fore-Aft
Position, page 58
• Tensioning Non-Timed
Knife Drive Belts, page
150
• Tensioning Timed Knife
Drive Belts, page 155
Revision A