Craftsman 486.242223 BRUSH REPLACEMENT, GEAR AND PAWL SERVICE, only, NOTE:, FIGURE, FIGURE, Make notes, Do Not loosen, IMPORTANT: Do not

SERVICE AND ADJUSTMENTS

BRUSH REPLACEMENT

NOTE: Brush replacement should be done one brush at

atime.

•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

OVERLAP

BRUSH BRISTLES

SHAFT

SINGLE

BRUSH

RETAINERS

DOUBLE BRUSH RETAINER

OVERLAP

BRISTLES

BRUSH ROTATION

FIGURE 24

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.

•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.

WASHER WASHER

IDLER

GEAR RETAINING

RING

DRIVE WASHER

PIN

FIGURE 25

PINION GEAR

TROUBLESHOOTING

Wheels skid when sweeping.	•	Brushes set too low.	• Adjust height till brushes are 1/2"
			down into grass.
	•	Brushes are jammed	• Stop sweeper. Remove obstruction.
	•	Wheels are jammed.	• Remove one wheel at a time to check
			for obstruction or damage. Refer to
			Service and Adjustments section.

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