Service and Adjustments, Troubleshooting

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 ﬁ gure 22.

•Slide the brush out of the retainers, noting on which side of the brush the bristles overlap. See ﬁ gure 22.

•Install new brush, making sure the bristles overlap on the same side of the brush as before. See ﬁ gure 22.

BRUSH ROTATION

OVERLAP

BRUSH BRISTLES

SHAFT

SINGLE

BRUSH

RETAINERS

DOUBLE BRUSH RETAINER

OVERLAP

BRISTLES

BRUSH ROTATION

FIGURE 22

SPROCKET, CHAIN 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 sprockets are not interchangeable.) Make notes on the position of washers and snap rings during disassembly.

•Remove the dust cover by removing the two rivets which fasten it to the wheel housing. (It is not necessary to remove the dust cover if you are only cleaning and lubricating the chain and sprockets.)

•Remove the retaining rings and washers which hold the sprockets onto the shafts.

•Remove the chain and both sprockets, holding them in position and sliding them off both of the shafts. (Look for the drive pin, which may fall out of the brush shaft when the ratchet sprocket is removed.) See ﬁ gure 23.

•To reassemble, insert the drive pin through the hole at the end of the brush shaft. Make sure the pin slides back and forth easily in the shaft.

•Lightly grease both shafts and the chain, and ﬁ ll the ratchet sprocket with grease. Assemble the chain with both sprockets back onto the shafts.

•Lightly grease the axle 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 and clean and lubricate the drive pin and ratchet gear.

DUST COVER	GEAR SPROCKET

CHAIN

RATCHET

SPROCKET

DRIVE PIN

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.