Replacing V-Belts
Tools Needed: | Qty |
Hex Wrenches 4, 6 & 8mm | 1 Ea |
Phillips Head Screwdriver | 1 |
Pry Bar | 1 |
Inspect the V-belts closely; if you notice fraying, cracking, glazing, or any other damage, replace the belts. A worn/damaged V-belt will not provide optimum power transmission from the motor to the drum and feed belt.
4.Remove the cap screws securing the bearing bracket and rotate the bearing bracket 90˚.
5.Slide the sanding drum V-belt off of the motor pulley, then lift the motor mount to remove the feed V-belt.
Note: You may need to use a pry bar to lift the motor mount.
6.To replace the variable speed belt, remove the cap screw securing the pulley shown in Figure 36, then remove the outer half of the pulley.
V-belt removal and replacement is simply a mat- ter of loosening the V-belts, rolling them off of the pulleys, replacing them with new belts, then retensioning them.
To replace the V-belts:
1. | Disconnect power to the sander! | |
2. | Open the pulley cover. | |
| Note: If you plan on replacing the variable | |
| speed belt, loosen the cap screw securing | |
| the variable speed pulley (Figure 36) before | |
| loosening the motor mount cap screws. | |
3. | Loosen the motor mount cap screws shown | 7. |
| in Figure 35 and loosen the cap screw |
| |
securing the idler roller.
| | 8. |
| Bearing | Idler |
| Roller |
| Bracket |
| 9. |
| |
| | Motor Mount Cap Screws |
Figure 35. Belt drive system.
-30-
Variable
Speed Pulley
Figure 36. Variable speed pulley.
Compress the spring behind the inner half of the variable speed pulley, slide the outer half of the pulley over the shaft and key, then thread in the cap screw.
Install the new feed and drum V-belts, re- attach the bearing bracket, and tension according to the instructions on Page 27.
Tighten the variable speed pulley cap screw and replace the pulley cover.
G0458 18" Open End Belt/Drum Sander
