Milwaukee Heavy-Duty Sanders and Grinders manual Selecting Wheels

Selecting Wheels

Grinding is the cutting action of thousands of abrasive grains on the face of a grinding wheel. When grinding metals such as steel and iron, choose an aluminum oxide grinding wheel. Select a silicon carbide grinding wheel for stone and concrete. Use cotton reinforced wheels for non-ferrous metals.

Type 27 reinforced 1/8" cut-off wheels are suited for small cut-off and shal- low notching operations only.

WARNING!

To reduce the risk of injury when grinding:

•ALWAYS hold the tool firmly with both hands using the handles provided; before and during grinding

•NEVER allow the wheel to bind

•NEVER use a wheel that has been dropped

•NEVER bang grinding wheel onto work

•NEVER grind without proper safety equipment

WARNING!

To reduce the risk of injury when grinding, ALWAYS use the proper guard. ALWAYS properly install the guard.

Grinding (Fig. 9 & 10)

1. Depending on your job, position the guard to provide maximum protec- tion for the operator (Fig. 9).

Fig. 9

1 Operator's Zones

1

1

1

Fig. 10

Hold at a 5° to 15° angle

5.Control pressure and surface contact between wheel and workpiece. Too much pressure slows cutting speed.

WARNING!

A Type 27 guard must be installed when using a Type

27cut-off wheel to provide maximum protection for the operator if the wheel should break.

Using Type 27 Cut-Off Wheels (Fig. 11)

Type 27 cut-off wheels are only suited for small cut-off and shallow notching operations.

1.Firmly grasp rear handle and side handle before starting and while us- ing tool. Allow wheel to come to full speed before starting.

2.When using a cut-off wheel, hold tool as shown, using only the edge of the wheel (Fig. 11).

Fig. 11

3.Control pressure and surface contact between wheel and workpiece. Too much pressure slows cutting speed.

2.If you have just installed a grinding wheel or are just beginning a period of work, test the wheel by letting it spin for one minute before applying it to the workpiece.

NOTE: Out-of-balance wheels can mar workpiece, damage the tool, and cause stress to wheel that may cause wheel failure.

3.Firmly grasp rear handle and side handle before starting and while using tool. Allow wheel to come to full speed before starting to grind.

4.When grinding, hold tool at a 5o to 15o angle as shown, using con- stant pressure for a uniform finish (Fig. 10). Too great an angle causes too much pressure on small areas which may gouge or burn work surface.

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