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MAINTENANCE
QTFSG/QTFSD 98349 05/15/03
4-4
CHECKING AND ADJUSTING THE MAIN BROOM
PATTERN
1. Using chalk, or similar material, coat and area of
the floor that is flat and smooth. If a suitable
material is not available, run the broom for two
minutes during the following test.
2. With the main broom raised, position the
machine so that the main broom is directly over
the chalked area.
3. Apply the parking brake to prevent the machine
from moving.
4. Lower the main broom to the floor for 10-15
seconds.
5. Raise the main broom, release the parking
brake, and back the machine away from the test
area.
6. Observe the pattern that the main broom left on
the floor. The pattern should be 1 to 1-1/2
inches (25.4 to 38.1mm) wide. The pattern
should not be tapered (wider at one end than the
other).
7. To adjust the width of the pattern, locate the
main broom adjustment knob, and loosen the
locking wing nut.
8. If the pattern is too wide, rotate the adjustment
knob clockwise to raise the broom. If the pattern
is too thin, rotate the adjustment knob,
counterclockwise to lower the broom. Tighten
the locking wing nut.
9. Check the broom pattern again. Repeat the
procedure until the pattern is correct.
A – Main Broom Pattern
B – 1 to 1-1/2” (25.4 to 38.1mm)
NOTE: If one end of the main broom pattern is more
than 1/2” (12.7mm) wider than the other end,
perform the following leveling procedure.
A – Main Broom Adjustment Knob
The adjustable bearing block used to correct a
tapered broom pattern is located just inside the right
broom door. Only the right side of the broom can be
raised or lowered to correct the pattern. Before
attempting the following adjustment, determine if the
right side of the broom needs to be raised or
lowered to correct the tapered pattern.
1. Turn off machine and set parking brake.
FOR SAFETY: Before leaving or servicing the
machine, stop on level surface, apply parking brake,
turn off machine and remove key.
2. Raise rear cover.
3. Disconnect batteries from machine.
4. Open the right side broom door.
5. Remove the main broom.
6. Locate the plastic main broom bearing block just
inside the right broom door. Loosen the bearing
block retainer bolts.
7. Slide the bearing block up or down to correct the
tapered pattern condition.
8. Tighten the bearing block retaining bolts.
9. Replace the main broom, and repeat the pattern
test procedure. Readjust if necessary to
eliminate the tapered pattern condition.