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QTFSG/QTFSD 98349 05/15/03
4-12
HOPPER DOOR SEALS
The hopper door seals prevent debris from spilling
out of the hopper before dumping. There are two
hopper door side seals, one hopper door lower seal
and one hopper door upper seal. The upper seal
can only be replaced by removing the hopper door
from the hopper. The hopper door seals should be
inspected for wear or damage daily. They do not
require adjustment.
REPLACING DOOR SEALS
1. Empty the debris hopper.
2. Park the machine on a smooth, level floor.
3. Raise the hopper and engage the hopper safety
arm.
Raised hopper may fall. Engage hopper safety
arm.
4. Partially open the hopper dump door so that
both sides of the hopper door can be accessed.
5. Turn off machine and set parking brake.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, apply parking brake, turn off
machine and remove key.
6. Remove the retainer bar from the worn or
damaged seal.
7. Remove the old seal and place the new seal in
position.
NOTE: When replacing the lower door seal, a new
seal cord must be used.
8. Replace the seal retaining bar. Replace and
tighten the screws.
HOPPER
The hopper holds debris swept by the main broom.
The hopper should be dumped after each day of
operation and cleaned every 200 hours of operation.
For efficient sweeping, the correct hopper floor
clearance must be maintained.
1. Empty the hopper.
2. Park the machine on a smooth, level floor.
3. Turn off machine and set parking brake.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, apply parking brake, turn off
machine and remove key.
4. Check the distance from the lower rear edge of
the hopper to the floor. The correct clearance is
2 inches (51 mm). The clearance should be
equal from side to side. A good method for
checking this clearance is to slide a 2 inch
(51mm) high bar under the hopper.
5. If necessary, loosen the two rear hopper
attachment bolts, raise or lower the rear of the
hopper to obtain the correct floor clearance, and
tighten bolts.
HOPPER DUST FILTER
The hopper dust filter cleans the dust laden air that
is drawn up from the hopper by the vacuum impeller.
The filter is located above the hopper and is
accessed by raising the filter cover. The filter should
be cleaned daily by pressing the filter shaker button
for 10-20 seconds. The filter should be removed,
cleaned and inspected after every 100 hours of
operation. Replace if damaged.
TO REMOVE AND REPLACE HOPPER DUST
FILTER
1. Turn off machine and set parking brake.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, apply parking brake, turn off
machine and remove key.
2. Raise the filter cover.
3. Loosen the four filter retaining bolts.
4. Rotate the lower two filter retaining tabs down.
5. Lift the left side of the upper filter retaining bar to
clear the retaining bolt and swing the bar down
to clear the right side of the filter panel.
6. Remove the filter.
7. After inspection or cleaning, install the dust filter
with the air flow arrow pointing up.
8. Replace the filter retaining bar, and the two
lower retaining tabs. Tighten the bolts.