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

7.2 Cutting Action and Knife Components

Symptom
Ragged or uneven
cutting of crop
169899
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. Install stub guards.
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.
Move reel forward.
Adjust drive belt tension.
247
Section
Checking Knife
Hold-Downs, page 149
6.5 Knife, page 140
Refer to your windrower
operator's manual
4.7.5 Ground Speed, page
57
4.7.4 Reel Speed, page 56
4.7.9 Reel Fore-Aft
Position, page 58
4.7.10 Reel Tine Pitch,
page 65
4.7.1 Cutting Height, page
50
Controlling Header Angle,
page 56
6.5.7 Knife Guards, page
144
6.5.7 Knife Guards, page
144
8.2.3 Stub Guard
Conversion Kit, page
262
See your MacDon Dealer
4.7.9 Reel Fore-Aft
Position, page 58
Tensioning Non-Timed
Knife Drive Belts, page 163
or Tensioning Timed Knife
Drive Belts, page 168
Revision A