Maintenance Instructions | REPLACING/REPAIRING |
2.Loosen the bearing flange mounting nuts and bolts. Position the chain tension block so that the chain has as much slack as possible. Tight- en the bearing flange mounting nuts and bolts slightly to hold the bearing flange in this posi- tion.
Tension
Block
Master Link
Bearing
Flange Bolts
Chain Guard 
Remove Chain Guard
and Loosen Chain Tension
3.Turn the brush drive shaft until the master link for the chain is accessible.
4.Remove the master link from the chain and re- move the chain from the sprocket.
5.Place the new chain on the sprockets and install the master link. Be sure to install the clip on the master link properly. The closed end of the clip should point in the direction of chain travel.
|
|
|
|
|
|
|
|
|
|
| Plate |
|
| ||
|
|
|
| ||||
Closed End |
|
|
|
|
|
|
|
Open End |
|
|
| ||||
of Clip |
| of Clip |
|
|
|
| |
|
|
|
|
|
| Master Link |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
| |
|
|
|
| ||||
|
| Replace Drive Chain |
| ||||
6.Adjust the chain. Refer to ADJUSTMENTS of Rotary Broom Drive Chain Tension in this section.
7.Reinstall the chain guard by reversing the re- moval procedures.
Rotary Broom Drive Sprocket
A sprocket should be replaced when the teeth be- come asymmetric (when the front side of a tooth is a different shape than the back side of the tooth).
Symmetric (Acceptable)
Asymmetric (Replace)
Sprocket Wear
NOTE: Generally; a small sprocket wears faster than a large sprocket.
1.Remove the chain guard and drive chain. Refer to REPLACING/REPAIRING of Rotary Broom Drive Chain in this section.
2.Loosen the set screws that fasten the sprocket to the drive shaft.
3.Slide the sprocket off the drive shaft. Use a pull- er if necessary.
4.If necessary, clean off the end of the drive shaft with an emery cloth or a wire brush.
5.Place the key in the keyway on the drive shaft.
58
