SERVICE AND ADJUSTMENTS
BRUSH REPLACEMENT
NOTE: Brush replacement should be done one brush at
atime.
1.Remove the hopper bag from the sweeper.
2.Loosen only the two hex bolts and lock nuts which clamp one brush in a brush retainer. Do not loosen or remove the bolts which fasten the brush retainers to the brush shaft. See fi gure 29.
3.Lift the brush out of the retainers, noting on which side of the brush the bristles overlap. See fi gure 29.
4.Install new brush, making sure the bristles overlap on the same side of the brush as before. See fi gure 29.
5.Tighten the two hex bolts and lock nuts to clamp the new brush in place before removing the next brush.
BRUSH ROTATION
OVERLAP
BRISTLES
BRUSH
RETAINER
OVERLAP
BRISTLES
DO NOT
REMOVE
OVERLAP
BRISTLES
FIGURE 29
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 position of washers and snap rings during disassembly.
1.Remove only one wheel from the sweeper.
2.Remove the retaining rings and washers which hold the ratchet 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 fi gure 30.
4.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. See fi gure 30.
5.Lightly grease the shaft and fi ll the ratchet gear with grease. Assemble the ratchet gear back onto the shaft. See fi gure 30.
6.Lightly grease the axle and the gear teeth on the wheel, 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 to clean and lubricate the drive pin and the ratchet gear. See fi gure 30.
7.Remove the second wheel and repeat the procedure.
RATCHET
GEAR
DRIVE
PIN
FIGURE 30
TROUBLESHOOTING
Wheels skid when sweeping. | 1. | Brushes set too low. | 1. | Adjust height till brushes are 1/2" |
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| down into grass. |
| 2. | Brushes are jammed | 2. | Stop sweeper. Remove obstruction. |
| 3. | Wheels are jammed. | 3. | Remove one wheel at a time to check |
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| for obstruction or damage. Refer to |
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| Service and Adjustments section. |
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