Sanding Belt Tension | Pressure Rollers | |
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The sanding belt tension is controlled by a switch located inside the upper portion of the machine (see Figure 12). To locate it, open the access door on the
Figure 12. This is the belt tension switch.
To Tighten Belt Tension:
Flip the switch up. The vertical cylinder will auto- matically tighten the top roller to the correct ten- sion.
To Loosen Belt Tension:
Flip the switch down. The vertical cylinder will automatically loosen the belt tension for belt removal.
NOTICE
The belt tension switch is part of the air control system. This means the machine must have air pressure for the switch to work correctly.
NOTICE
Always tighten belt before starting sander!
Always keep the pressure rollers set below the level of the sanding roller. If the pres- sure rollers are even, or higher than the sanding roller, the wood WILL be propelled from the sander at a high rate of speed. This situation could cause serious person- al injury.
The pressure rollers have been set at the factory, but for increased personal safety, you should ver- ify that they are below the sanding belt.
To check the feed pressure:
1.Disconnect the sander from the power source!
2.Place a piece of scrap wood of uniform thick- ness across the conveyor so it spans both front and rear pressure rollers at the same time.
3.Make sure the platen is even with the sand- ing belt rollers.
4.With the air pressure connected, the sanding belt installed, and the belt tension switch ON, slowly raise the conveyor and verify that the board touches both pressure rollers before it touches the sanding belt.
If the board does not touch both pressure rollers before it touches the sanding belt, then the pressure rollers must be adjust- ed before operation. See Section 8: Service Adjustments for
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| G9983 15" | |
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