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Maintenance Instructions LUBRICATION
44
LUBRICATION
Proper lubrication is an important maintenance pro-
cedure. It reduces wear and makes the machine
quieter and easier to operate.
Rotary Broom Gearbox
The gearbox is permanently lubricated (oil filled) and
sealed requiring no scheduled lubrication. However,
the gearbox oil seal(s) should be checked every 25
hours for indication of an oil leak. If an oil leak is
noted, replace the oil seal and relubricate the gear-
box as follows:
1. Remove the gearbox following the procedure
described in REPLACING/REPAIRING the Ro-
tary Broom Gearbox in this section.
Rotary Broom Gearbox with Cover Removed
2. Clean the area around the plug located on the
front of the gearbox.
3. Remove the gearbox plug on the gearbox.
4. If the lubricant is flowing out of the plug hole, the
gearbox is full. Reinsert the plug. If no lubricant
flows out, add SAE E.P. (Extreme Pressure)
90W oil into the gearbox through the plug hole
until it starts to flow out.
5. Wipe the threads of the gearbox plug before re-
installing.
6. Torque screws to 24 in-lb (2.7 N·m).
NOTE: In case the gearbox is completely
drained of oil, approximately 5 fl. oz. (15 cl) of oil
is required to refill the gearbox.
Rotary Broom Drive Chain
Lubricate the drive chain every 25 hours. A light
penetrating oil or special purpose chain oil is recom-
mended. Lubricate the drive chain as follows:
1. Remove the two (2) bolts fastening the chain
guard cover to the broom housing and remove
the cover.
Remove Chain Guard Cover
2. Apply oil to the drive chain.
3. Reinstall the chain guard cover by reversing the
removal procedures.
WARNING
DO NOT attempt to lubricate the machine
with the tractor engine running. Disen-
gage the PTO clutch, shut off the ma-
chine, and remove the ignition key.
Gearbox
Plug
Gearbox
Mounting
Bolt
Gearbox
Cover
Dipstick Plug
Chain Guard BoltsChain Guard Cover
Drive Chain