SECTION 58 - DRIVELINES - CHAPTER 3
58-5
KNIFE AND BOLT INSPECTION
Inspect the cutter bar daily for damaged
components. The quality of cut and safety of
operation depends on regular inspection of the cutter
bar. Check the discs, knives, and hardware
systematically for wear, damage or loose
components.
Operating over rough terrain and rocky conditions
can cause the knives to crack or deform leading to
cutting problems, increase of safety risks, and
possible cutter bar damage.
NOTICE: Striking an object can cause knife
hardware to loosen. If an obstacle is struck, STOP!,
check all hardware and retighten.
The knives must be replaced or turned over to a new
cutting edge on a timely basis to maintain good
cutting performance. Dull knives will require more
horsepower to cut the crop and will leave a ragged
stubble.
Replace the knives if they are bent, severely worn, or
if the hole is elongated. Replace the knife bolt if wear
is found or if it can be threaded into the knife nut by
hand.
NOTICE: The knife bolts have a lock patch on them.
If the knife nuts can be threaded into the knife nut by
hand, replace the bolt.
When a knife or securing hardware is in question,
replace it.
WARNING
Replace cracked or severely deformed knives
immediately to prevent an accident. Failure to
comply could result in death or serious injury.
M1260
Replace the knife nut if the shoulder or threads show
wear.
Rotate the bolt protectors to a new area when
changing knives and replace them if they are worn
around the full circumference.
If the cutter bar cannot be turned by hand due to
material build-up under the discs, start the tractor
and operate the PTO at 1/3 rated speed for 30
seconds. Shut the tractor off and recheck. If the cutter
bar still cannot be turned by hand, it will be necessary
to remove the discs and clean out the material
buildup.
WARNING
Do not operate disc mower--conditioner without
all cutter bar shields down, cover skirts installed,
snapped together and in good condition. Failure
to follow these instructions may lead to personal
injury.
DMC001
8
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