Milwaukee 5243 Extension Cords, Read And Save All Instructions For Future Use, Tool Assembly

EXTENSION CORDS

Care of Grinding Wheels

Grinding wheels should be protected from"

WARNING

Grounded tools require a three wire exten- sion cord. Double insulated tools can use either a two or three wire extension cord. As the distance from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage. Refer to the table shown to determine the required minimum wire size.

The smaller the gauge number of the wire, the greater the capacity of the cord. For ex- ample, a 14 gauge cord can carry a higher current than a 16 gauge cord. When using more than one extension cord to make up the total length, be sure each cord contains at least the minimum wire size required. If you are using one extension cord for more than one tool, add the nameplate amperes and use the sum to determine the required minimum wire size.

Guidelines for Using Extension Cords

•If you are using an extension cord out- doors, be sure it is marked with the suffix “W-A” (“W” in Canada) to indicate that it is acceptable for outdoor use.

•Be sure your extension cord is prop- erly wired and in good electrical condition. Always replace a damaged extension cord or have it repaired by a qualified person before using it.

•Protect your extension cords from sharp objects, excessive heat and

damp or wet areas.

Recommended Minimum Wire Gauge

for Extension Cords*

Nameplate		Extension Cord Length
Amperes		25'	50'	75'	100'	150'
0 - 2.0		18	18	18	18	16
2.1	- 3.4	18	18	18	16	14
3.5	- 5.0	18	18	16	14	12
5.1	- 7.0	18	16	14	12	12
7.1 - 12.0		16	14	12	10
12.1	- 16.0	14	12	10
16.1	- 20.0	12	10

*Based on limiting the line voltage drop to five volts at 150% of the rated amperes.

•wetness and extreme humidity

•any type of solvent

•extreme changes in temperature

•dropping and bumping. Grinding wheels should be stored:

•in an organized way so wheels can be removed without disturbing or damaging other wheels

•with their safety information.

Grinding wheels should NOT be:

•dropped

•rolled

•bumped.

If any wheel is dropped, rolled, bumped, sub- jected to extreme changes in temperature, or has come into contact with solvents or wetness, discard wheel immediately.

WARNING

To reduce the risk of injury and dam- age to the tool, use ONLY accessories rated at or above the RPM listed on the tool's nameplate.

To Test the Wheel:

To reduce the risk of injury, the wheel guard must be flush with the spindle housing.

Installing Guard Assemblies

The guards for all tools in this manual are mounted the same way:

1.Unplug tool and lay it on its tool rest.

2.Loosen guard clamping fasteners.

3.Position guard clamp over the spindle housing and against the housing shoul- der (Fig. 2).

Fig. 2

Spindle

Spindle housing shoulder

Guard clamp

READ AND SAVE ALL INSTRUCTIONS FOR FUTURE USE.

TOOL ASSEMBLY

NOTE: Wheel must be dry to do this test.

1.Suspend the wheel by its arbor hole on a small pin or a finger (Fig. 1).

4. Position guard so the operator is always

behind the guard. The open edge of the

guard should face the workpiece.

WARNING

To reduce the risk of injury, always unplug tool before at- taching or removing accessories or making adjustments. Use only spe- cifically recommended accessories. Others may be hazardous.

Grinding Wheel Selection

Only use wheels that:

•are high-strength

•are resinoid bond

•are the proper grit

•are the correct size

•are rated at or above the RPM listed on the tool's nameplate

•have blotters that cover the entire flange contact area.

Grit Selection

The lower the grit number, the coarser the wheel. Coarser wheels should be used for rough grinding and finer wheels for finish grinding (see "Accessories").

Wheel Material

Grinding wheels are made from various materials and are meant for different jobs. Be sure you choose the proper wheel for the job you plan to do.

MILWAUKEE Straight Grinders use type 1, straight wheels as defined by the American National Standards Institute (ANSI). Type 1 straight wheels are made to be used for edge grinding. They are not to be used for side grinding.

Fig. 1

2.Tap the side of the wheel with the back of a screwdriver (or any similar, solid, non-metallic object).

3.Rotate wheel 90° and repeat the test in three more places.

If the wheel rings, it is in good condition. If it does not ring, it is bad and should be discarded.

5. Tighten wheel guard clamps.

Installing Grinding Wheels and Acces- sories (Cat. No. 5211 only)

Fig. 3 Faceplate

Inner flange

Grinding wheel

Outer flange Spindle nut

1.Unplug tool and lay it on its tool rest.

2.Loosen wing nuts. Move studs aside and swing the faceplate away.

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