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13
BRUSH REPLACEMENT
NOTE:
Brush replacement should be done one brush at
a time.
1.
Remove the hopper bag from the sweeper.
2.
Loosen only the two hex bolts and lock nuts which clamp
one brush in a brush retainer.
Do not
loosen
or remove
the bolts which fasten the brush retainers to the brush
shaft. See fi gure 29.
3.
Lift the brush out of the retainers, noting on which side
of the brush the bristles overlap. See fi gure 29.
4.
Install new brush, making sure the bristles overlap on
the same side of the brush as before. See fi gure 29.
5. Tighten the two hex bolts and lock nuts to clamp the
new brush in place before removing the next brush.
FIGURE 30
FIGURE 29
1.
Brushes set too low.
2.
Brushes are jammed
3.
Wheels are jammed.
Wheels skid when sweeping.
1.
Adjust height till brushes are 1/2"
down into grass.
2.
Stop sweeper. Remove obstruction.
3.
Remove one wheel at a time to check
for obstruction or damage. Refer to
Service and Adjustments section.
SERVICE AND ADJUSTMENTS
RATCHET
GEAR
DRIVE
PIN
WHEEL GEAR AND PAWL SERVICE
IMPORTANT:
Do not
remove both wheels at the same
time to avoid mixing of parts. (The R.H. and L.H. ratchet
gears are not interchangeable.)
Make notes
on the position
of washers and snap rings during disassembly.
1. Remove
only one
wheel from the sweeper.
2. Remove the retaining rings and washers which hold the
ratchet gear onto the brush shaft.
3. Remove the gear by sliding it off the brush shaft. (Look
for the drive pin, which may fall out of the brush shaft
when the ratchet gear is removed.) See fi gure 30.
4. To reassemble, insert the drive pin through the hole near
the end of the brush shaft. Make sure the pin slides back
and forth easily in the shaft. See fi gure 30.
5. Lightly grease the shaft and fi ll the ratchet gear with
grease. Assemble the ratchet gear back onto the shaft.
See fi gure 30.
6. Lightly grease the axle and the gear teeth on the wheel,
and then reassemble the wheel. The brushes should
rotate
only
during forward rotation of the wheel. If the
brushes are driven (rotated) by both forward and reverse
rotation of the wheel, the drive pin is jamming in the
ratchet gear. Disassemble to clean and lubricate the
drive pin and the ratchet gear. See fi gure 30.
7. Remove the second wheel and repeat the procedure.
BRUSH ROTATION
OVERLAP
BRISTLES
OVERLAP
BRISTLES
OVERLAP
BRISTLES
BRUSH
RETAINER
DO NOT
REMOVE
TROUBLESHOOTING