Milwaukee 6391 manual Grounding

Kickback is the result of saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking

Raise the lower guard with the retracting handle and make sure it moves freely and does not touch the blade or any other part,

GROUNDING

proper precautions as given below:

a. Maintain a firm grip with both hands

on the saw and position your arms

to resist kickback forces. Position

your body to either side of the

blade, but not in line with the blade.

Kickback could cause the saw to jump

backwards, but kickback forces can

be controlled by the operator, if proper

precautions are taken.

b. When blade is binding, or when inter-

rupting a cut for any reason, release

the trigger and hold the saw motion-

less in the material until the blade

comes to a complete stop. Never

attempt to remove the saw from the

work or pull the saw backward while

the blade is in motion or kickback

may occur. Investigate and take cor-

rective actions to eliminate the cause

of blade binding.

c. When restarting a saw in the work-

piece, centre the saw blade in the kerf

and check that saw teeth are not en-

gaged into the material. If saw blade is

binding, it may walk up or kickback from

the workpiece as the saw is restarted.

d. Support large panels to minimise the

risk of blade pinching and kickback.

Large panels tend to sag under their

own weight. Supports must be placed

under the panel on both sides, near

the line of cut and near the edge of the

panel.

e. Do not use dull or damaged blades.

Unsharpened or improperly set blades

produce narrow kerf causing excessive

in all angles and depths of cut.

11.	Check the operation of the lower
	guard spring. If the guard and the
	spring are not operating properly,
	they must be serviced before use.
	Lower guard may operate sluggishly
	due to damaged parts, gummy deposits,
	or a build-up of debris.
12.	Lower guard should be retracted
	manually only for special cuts such
	as “plunge cuts”and “compound
	cuts.” Raise lower guard by retract-
	ing handle and as soon as blade
	enters the material, the lower guard
	must be released. For all other saw-
	ing, the lower guard should operate
	automatically.
13.	Always observe that the lower guard
	is covering the blade before plac-
	ing saw down on bench or floor. An
	unprotected, coasting blade will cause
	the saw to walk backwards, cutting
	whatever is in its path. Be aware of the
	time it takes for the blade to stop after
	switch is released.
14.	Do not use abrasive wheels with
	circular saws. Dust and grit can cause
	lower guard to hang up and not operate
	properly.
15.	Maintain labels and nameplates.
	These carry important information.
	If unreadable or missing, contact a
	MILWAUKEE service facility for a free
	replacement.
16.	WARNING: Some dust created by
	power sanding, sawing, grinding, drill-

WARNING

Improperly connecting the grounding wire can result in the risk of electric shock. Check with a qualified electri- cian if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided with the tool. Never remove the grounding prong from the plug. Do not use the tool if the cord or plug is damaged. If damaged, have it repaired by a MILWAUKEE service facility before use. If the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.

Grounded Tools:

Tools with Three Prong Plugs

Tools marked “Grounding Required” have a three wire cord and three prong grounding plug. The plug must be connected to a prop- erly grounded outlet (See Figure A). If the tool should electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user, reducing the risk of electric shock.

The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool. The green wire in the cord must be the only wire con- nected to the tool's grounding system and must never be attached to an electrically “live” terminal.

Your tool must be plugged into an appropri- ate outlet, properly installed and grounded in accordance with all codes and ordinances. The plug and outlet should look like those in Figure A.

Double Insulated Tools:

Tools with Two Prong Plugs

Tools marked “Double Insulated” do not require grounding. They have a special double insulation system which satisfies OSHA requirements and complies with the applicable standards of Underwriters Laboratories, Inc., the Canadian Standard Association and the National Electrical Code. Double Insulated tools may be used in either of the 120 volt outlets shown in Figures B and C.

	friction, blade binding and kickback.
f.	Blade depth and bevel adjusting
	locking levers must be tight and
	secure before making cut. If blade
	adjustment shifts while cutting, it may
	cause binding and kickback.
g.	Use extra caution when making a
	“plunge cut” into existing walls or
	other blind areas. The protruding
	blade may cut objects that can cause
	kickback.
10.	Check lower guard for proper closing
	before each use. Do not operate the
	saw if lower guard does not move
	freely and close instantly. Never
	clamp or tie the lower guard into
	the open position. If saw is acciden-
	tally dropped, lower guard may be bent.

ing, and other construction activities

contains chemicals known to cause

cancer, birth defects or other reproduc-

tive harm. Some examples of these

chemicals are:

• lead from lead-based paint

• crystalline silica from bricks and ce-

ment and other masonry products,

and

• arsenic and chromium from chemi-

cally-treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ven- tilated area, and work with approved safety equipment, such as those dust masks that are specifically designed to filter out microscopic particles.

Fig. A Fig. B Fig. C

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