SECTION 58 - ATTACHMENTS / HEADERS - CHAPTER 1
58-6
KNIFE AND BOLT INSPECTION
Inspect the cutter bar daily for damaged compo-
nents. The quality of cut and safety of operation
depends on regular inspection of the cutter bar.
Check the discs, knives, and hardware systematical-
ly 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.
NOTE: Striking an object can cause knife hardware
to loosen. If an obstacle is struck, STOP, check all
hardware and retighten.
WARNING
Disengage the PTO, turn off the tractor engine
and remove the key. Wait for all movement to
stop before leaving operator’s position. Never
adjust, lubricate, clean or unplug machine with
the engine running. Failure to comply could
result in death or serious injury.
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.
Replace the knife nut if the shoulder or threads show
wear.
NOTE: 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.
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.
CAUTION
Be sure that all cutter bar shields are down and
cover skirts snapped together before operating
unit. Failure to comply could result in death or
serious injury.
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