SECTION 00 - GENERAL INFORMATION - CHAPTER 3
00-3
PROBLEM
POSSIBLE CAUSE CORRECTION
Green material accumulating on
rigid cutter bar and poor transfer to
auger.
Reel too high. Lower reel closer to cutter bar.
Poor cutting action (ragged and
uneven).
Cutter bar not operating at proper
speed.
Knife sections, hold-down clips or
guards worn, damaged or broken.
Bent knife causing binding.
Hold-down clips not adjusted
properly.
Ground speed too fast for
condition of crop.
Knife belt drive slipping.
Cutter bar plugging with material.
Worn knife head bushing.
Check combine main shaft RPM.
See combine operator’s manual
for proper settings. Check belt
tensions.
Speed up variable speed feeder.
Replace all worn, damaged or
broken parts.
Straighten knife and check guard
alignment. Align if necessary.
Adjust hold-down clips so the knife
works freely but knife sections do
not lift off the guards.
Slow down ground speed.
Adjust V-belt tension.
Clean out obstruction and adjust
reel to sweep material from the
cutter bar.
Replace knife head bushing.
Excessive vibration of cutter bar
and related parts
Cutting mechanism not at
recommended speed.
Loose knife-to-knife arm
connection.
Worn knife head bushing.
Incorrect knife register.
Loose or worn bearings in wobble
box.
Dull knives and guards.
Bent cutter bar or knife back.
Bent guards.
Check combine main shaft RPM.
See combine operator’s manual
for proper settings. Make sure all
belts are properly tightened.
Tighten as recommended.
Replace knife head bushing.
Check for alignment of timing
marks on wobble box and knife
arm.
Check and replace parts if
required.
Sharpen knives. Replace guards
as required.
Straighten so knife moves freely.
Check guard alignment.
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