Grizzly H3120 instruction manual Operation Instructions, Starting Sander

OPERATION INSTRUCTIONS

Starting Sander

Plug the cord into a 110V outlet. Move the black switch (located at the front of the sander) to the “–” position to turn the sander ON, and move the switch to the “O” position to turn the sander OFF. The sander should run smoothly. Strange or unnatural noises should be investigated and corrected before operating further.

If you cannot easily locate the source of an unusual noise or vibration, contact our service department for help.

Selecting Abrasive Types

ALUMINUM OXIDE abrasives are an excellent choice because they last longer and are sharper than natural abrasives.

Selecting Grit Sizes

As a general rule, start with a coarse grit size and move through finer grit sizes until you achieve your desired results.

Use the list below to define paper grit sizes:

•	Extra Coarse	..............................12-20
•	Very Coarse	..............................24-36
•	Coarse	40-50
• Medium		60-100
•	Fine	120-180
•	Very Fine	220-280
•	Extra Fine	320-400

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Attaching Abrasives

Abrasive sheets can be easily attached with the hook-and-loop system on the pad of your Model H3120 sander. Fit the sheet over the pad so that it covers the entire area, push and slightly twist to make sure the coated abrasive sheet is snug on the pad. Make sure you don’t cover the suc- tion holes.

Using the Sander

Determine the appropriate grit size for your project and sand the work evenly in the same direction as the grain of the wood. Always keep the sander moving so the finish of your work stays consistent. If you stay in one place too long, then the sander may produce a depression in the wood that will compromise your finish.

Sanding across the grain of the wood may be necessary in some cases to remove rough defects. This should be done with caution, however, because it can produce cross-grain scratching that will require fur- ther sanding to remove.

Change abrasive sheets as soon as the grit becomes dull. You will recognize this when the sander seems to slide across the work without any “bite.”

Never apply excessive force while sand- ing. Your sander will last longer if you let “it” do the work. Using a slight pressure barely greater than the weight of the machine is ideal because you can still maintain control while obtaining a fine fin- ish.

H3120 Palm Sander