OPERATION
800D MM308 (3–95)
58
REGENERATIVE FILTER SYSTEM (RFS)
The Regenerative Filter System (RFS) is an
option that alternately turns on the filter shaker
motors when the filters need cleaning because of
a build–up of dust or debris.
Normally the RFS does not require the operator to
stop the machine to shake the filters during
sweeping operation (except in extreme and
severe dust environments). However, it is
recommended that the filters are shaken at the
operator’s initiative each time the hopper is
dumped. This can be accomplished during transit
to a dump sight. AVOID shaking the filters while
hopper is in a rolled out position. To initiate a
shaking cycle, press the filter button on the
instrument panel. See FILTER SHAKER
SWITCH.
In very severe dust environments, the plugged
filter indicator on the instrument panel may remain
lit. When this occurs, it is recommended that the
operator stop the machine and initiate one or two
shake cycles to clear a possible plugged filter
condition. After shaking, roll the hopper out to
evacuate the dust tray. Resume sweeping
operation.
If the hopper is over full, the light may come on.
Check the hopper load and dump if necessary.
If the filter light remains on after all the above
conditions are corrected, the filters may be
plugged or the RFS may be inoperative. Filters
may be shaken by the operator initiative by
pressing the filter button on the instrument panel if
there is a failure in the RFS control system.
Successful operation of the RFS option requires
clean, undamaged filters. Plugged filters may
cause the RFS to cycle continuously even at start
up. The option also requires good sealing of the
upper lid to the hopper, as well as a good seal
between the two upper filter chambers.
It is recommended that the machine be driven for
some test sweeping with the RFS option at initial
start up. This next step assumes the hopper cover
and upper filter chamber of the hopper was
cleaned thoroughly prior to installation of the RFS
option. Sweep for 30 minutes and open the
hopper cover to check the integrity of the seals.
Look at the top of the shaker panels and the
underside of the hopper cover. Check for any
signs of dust tracking that may be caused by a
bad seal or filter. Repair a necessary. Perform this
check periodically while using the sweeper with
the RFS option.
