MAINTENANCE
71
800D MM308 (3–95)
DEBRIS HOPPER
HOPPER DUST FILTER
The dust filters filter the air pulled up from the
hopper. The dust filters are equipped with a
shaker to remove the accumulated dust particles.
The dust filters shaker is operated by the filter
shaker switch.
Shake the dust filters before dumping the hopper
and at the end of every work shift. Avoid shaking
the filters while the hopper is in a rolled out
position. Check and clean the dust filters every 50
hours of operation. Extremely dusty conditions
may require more frequent cleaning of dust filters.
To clean the dust filters, use one of the following
methods:
SHAKING – Press the filter shaker switch.
AIR – Blow compressed air through the dust
filter from the inside. This may be done with
the dust filter in the machine, or for more
efficient cleaning remove the dust filter from
the machine and the prescreen wrap from
the filter element. Always wear eye
protection when using compressed air.
FOR SAFETY: When servicing machine, wear
eye and ear protection when using
pressurized air or water.
WATER – Remove the fabric presceen wrap
from the filter element. Wash the prescreen
wrap in a water and mild detergent solution.
Rinse the prescreen wrap until it is clean. Air
dry the wet prescreen wrap; do not use
compressed air. NEVER wash the filter
element with water.
TO REMOVE OR REPLACE HOPPER DUST
FILTER
1. Stop the engine and set the machine parking
brake.
FOR SAFETY: Before leaving or servicing
machine; stop on level surface, set parking
brake, turn off machine and remove key.
2. Open the hopper cover.
3. Disconnect the shaker motor wire
connectors.
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