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SECTION 4:
MAINTENANCE AND LUBRICATION
MAINTENANCE
Check all bolts after using the unit to be sure
they are tight.
•
Buildup of debris around moving
components and gearboxes is a fire
hazard. Keep rotating parts and
gearboxes free from debris to avoid
serious injury and property damage.
•
Improper oil level can cause bearing
failure and be a fire hazard. Maintain
proper gearbox oil level to avoid serious
injury and property damage.
SLIP-CLUTCH PROTECTED DRIVELINE
WARNING
To avoid serious injury or death:
Always follow “Tractor Shutdown Procedure”
provided in this manual before dismounting the
tractor.
Cutter drive components are protected from
shock loads by a two-plate friction clutch.
CLUTCH RUN-IN
The clutch must be capable of slippage during
operation to protect gearbox, driveline, and
other drive train parts. Friction clutches should
be
“run
-
in”
prior to initial operation and after
long periods of inactivity. To prevent driveline
and gearbox damage, repeat clutch
“run
-
in” at
the beginning of each season and when
moisture and/or condensation seizes the inner
friction plates.
Refer to Figure 4-1:
Figure 4-1
: Clutch Run-In
1.
Using a pencil or other marker scribe
a line across the exposed edges of the
clutch plates and friction disks.
2.
Carefully loosen each of the 8 spring
retainer nuts by exactly 2 revolutions.
It will be necessary to hold the hex
end of the retainer bolt in order to
count the exact number of
revolutions.
3.
Start the tractor and engage the
driveline drive for 2-3 seconds to
permit slippage of the clutch
surfaces. Disengage the driveline,
then re-engage a second time for 2-3
seconds. Disengage driveline, shut off
tractor, and remove key. Wait for all
components to stop before
dismounting from tractor.
