13
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. pinion
gears are not interchangeable.)
Make notes
on the position
of washers and snap rings during disassembly.
1. Remove one wheel from the sweeper.
2. Remove the retaining rings and washers which hold
the pinion 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 figure 23.
4. To reassemble, insert the drive pin into the hole in the
brush shaft. Make sure the pin slides back and forth
easily in the shaft.
5. Lightly grease the shaft and fill the pinion gear with
grease. Assemble the gear back onto the shaft.
6. Lightly grease the axle and the wheel's gear teeth
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 pinion gear. Disassemble to clean and lubricate
the drive pin and the pinion gear.
BRUSH REPLACEMENT
NOTE:
Brush replacement should be done one brush at
a time.
1. Remove the hopper bag from the sweeper.
2. Loosen the hex bolts and lock nuts on two single
brush retainers which clamp one brush to the double
brush retainers.
Do Not
loosen
or remove the bolts
which fasten the double brush retainers to the brush
shaft. See figure 22.
3. Slide the brush out of the retainers, noting on which
side of the brush the bristles overlap. See figure 22.
4. Install new brush, making sure the bristles overlap on
the same side of the brush as before. See figure 22.
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
TROUBLESHOOTING
FIGURE 22
FIGURE 23
PINION
GEAR
DRIVE
PIN
BRUSH ROTATION
BRUSH ROTATION
OVERLAP
BRISTLES
OVERLAP
BRISTLES
SINGLE
BRUSH
RETAINERS
DOUBLE BRUSH RETAINER
BRUSH
SHAFT
