Mtd 190-459A-100 User Manual Page 8

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SERVICE AND ADJUSTMENTS
BRUSH REPLACEMENT
NOTE: Brush replacement should be done one brush at
a time.
1.
2,
3,
4.
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 9.
Slide the brush out of the retainers, noting on which
side of the bru*sh the bristles overlap. See figure 9.
Install new brush, making sure the bnstles overlap on
the same side of the brush as before. See figure 9.
BRUSH ROTATION
OVERLAP
BRISTLES
SINGLE
BRUSH
RETAINERS
DOUBLE BRUSH RETAINER
OVERLAP *
BRISTLES
BRUSH ROTATION
FIGURE 9
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 posi
tion of washers and snap rings during disassembly.
1.
2.
3.
5.
6.
Remove one wheel from the sweeper.
Remove the retaining nngs and washers which hold the
ratchet gear onto the brush shaft.
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 10.
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.
Lightly grease the shaft and fill the ratchet gear with
grease. Assemble the ratchet gear back onto the shaft.
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 rota
tion of the wheel, the drive pin is jamming in the ratchet
gear. Disassemble to clean and lubricate the drive pin
and the ratchet gear.
DRIVE
PIN
HATCHET
GEAR
FIGURE TO
Wheels skid when sweeping.
1. Brushes set too low.
2. Brushes are jammed
3. Wheels are jammed.
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
Sennce and Adjustments section.
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