Grizzly G1079, G1066Z instruction manual Variable Speed

G1066Z

Your new Model G1066Z Drum Sander provides a great amount of operator control during opera- tion. To utilize this control, you should be familiar with the variable speed and the load meter before using the drum sander.

Variable Speed

The variable speed dial located on the control panel allows you to increase the feed rate from 0- 20 FPM. The correct speed to use depends on the type of stock you are using (hardwood vs. softwood) and the stage of finish you are at with that stock.

As a general rule, a slower feed rate will sand the surface smoother, but runs the risk of burning the wood; a faster feed rate will remove material faster, but runs the risk of overloading the motor. Use trial-and-error to determine the best settings for your specific applications.

Load Meter

The load meter located on the control panel dis- plays the current amperage draw of the drum motor. The needle rises when you increase the load on the sanding drums and decreases when you decrease the load. Use this meter to avoid overloading your machine with too heavy of a cut.

NEVER exceed 25 amps—this is the maxi- mum that your machine can safely handle!

Since various types of stock will react differently with various loads, use trial-and-error to deter- mine the best settings for your applications. As a general rule, always start with a small load and work your way up. We recommend that you do not push your machine to its maximum load; instead, make multiple passes or install a coars- er grit paper.

Operation

Under most sanding conditions, a normal cut is no more than 1⁄64". This depth can be achieved by approximately 1⁄4 turn of the handle. Excessively heavy cuts can cause jamming, wood burning, rapid paper wear, poor finish and belt slippage.

We recommend that wide stock be sent through two to three times without adjusting the table height—this is important for preventing burned wood or ruined sandpaper. Also, turn the stock 180° to ensure an even cut. The following is the correct start-up and operating procedure for this model.

1.Start the dust collector.

2.Place stock on the conveyor table and turn the table handle to raise the conveyor table until the stock barely touches the pressure bar.

3.Start the drum motor and the feed motor. Pass the stock through the sander and slow- ly raise the conveyor table while listening for stock-to-drum contact. As soon as you hear contact, stop raising the table and watch the load meter (if it gets too high, immediately lower the conveyor table). Retrieve your workpiece by standing to the side of the sander—NOT directly behind it.

4.Without moving the table, make multiple passes and check your workpiece.

5.Check the sanded piece. Is the piece smooth? Mark a squiggly pencil line on a board and sand it to test for even sanding. Look for uniform removal of the line. If the line is not removed uniformly, refer to the Adjustments section earlier in the instruction manual.

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