DUST CONTROL SYSTEM
TigerCat, Hydro-Retriever 4500
Service Manual
When sweeping on a wet surface the dust control lever should be put in the OFF position. This opens a
butterfly-type valve which stops air flow. If this procedure is not followed, moisture will be pulled into the filter,
mix with the dirt and form a hardened coating that is difficult to remove.
There is no dust control for the side broom. The side broom should be used only when sweeping along a wall
or curb, and raised when sweeping in an open area. This will keep the amount of dust raised by the machine
to a absolute minimum.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
DUST CONTROL FILTER REMOVAL AND INSPECTION
The dust control filter should be inspected every 30 hours of operation. To inspect the filter...
1
Open the hinged cover on top of the hopper. If there is dirt under this cover, the gasket around the filter
may be damaged or the filter may be punctured. The filter must be replaced if it is punctured.
2
Disconnect the shaker motor wiring, release the filter latches and lift the filter retainer out of the hopper.
3
Using the lifting rings, carefully lift the filter out of the hopper.
4
Inspect the gasket around the dirty-side of the filter. Replace this filter if it is damaged or pulled loose
from the filter.
5
Check the dirty side of the filter for a heavy build-up of dirt. If The filter is lightly coated (1/16 inch thick)
with dirt and the pleats in the filter are not filled with dirt, cleaning is not necessary. If there is a heavy
coating of dirt on the filter, follow the cleaning instructions below.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
GENERAL INFORMATION (continued)
24
