Service And Adjustments; Troubleshooting; Brush Replacement; Gear And Pawl Service - Craftsman 486.242223 Owner's Manual

BRUSH REPLACEMENT GEAR AND PAWL SERVICE
NOTE: Brush replacement should be done one brush at
a time.
• Remove the hopper bag from the sweeper.
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 24.
Slide the brush out of the retainers, noting on which
side of the brush the bristles overlap. See figure 24.
Install new brush, making sure the bristles overlap on
the same side of the brush as before. See figure 24.
BRUSH ROTATION
BRUSH
SHAFT
OVERLAP
BRISTLES
SINGLE
>BRUSH
RETAINERS
OVERLAP
BRISTLES
BRUSH ROTATION
FIGURE 24
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.
Remove one wheel at a time, following the instructions
in the MAINTENANCE section.
Remove the retaining rings which hold the gears on
the brush shaft and the jack shaft.
Remove the pinion gear, washer and drive pin from the
end of the brush shaft. (The drive pin may fall out of the
brush shaft when the pinion gear is removed.)
Remove the idler gear and washers from the jack shaft.
Clean all parts.
Replace worn parts.
To reassemble, lightly grease the jack shaft and the
brush shaft. Insert the pin into the hole in the brush
shaft. Make sure the pin stays in the shaft.
Lightly grease the teeth on both gears and fill the
recess of the pinion gear with grease. Assemble both
gears back onto the shafts.
Lightly grease the axle and then reassemble the wheel
onto it. 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
and clean and lubricate the drive pin and pinion gear.
X WASHER WASHER
IDLER
GEAR RETAINING
RING
FIGURE 25
jT°
DRIVE WASHER
PIN
PINION
GEAR
Wheels skid when sweeping.
Brushes set too low.
Brushes are jammed
Wheels are jammed.
Adjust height till brushes are 1/2"
down into grass.
Stop sweeper. Remove obstruction.
Remove one wheel at a time to check
for obstruction or damage. Refer to
Service and Adjustments section.
14