Functional Description - Milwaukee 2630-20 Manual Del Operador

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Causes and Operator Prevention of

KICKBACK:

KICKBACK is a sudden reaction to a

pinched, bound or misaligned saw blade,

causing an uncontrolled saw to lift up and out

of the workpiece toward the operator.

When the blade is pinched or bound tightly

by the kerf closing down, the blade stalls and

the motor reaction drives the unit rapidly back

toward the operator.

If the blade becomes twisted or misaligned

in the cut, the teeth at the back edge of the

blade can dig into the top surface of the wood

causing the blade to climb out of the kerf and

jump back toward operator.

KICKBACK is the result of saw misuse and/or

incorrect operating procedures or conditions

and can be avoided by taking proper precau-

tions as given below:

• Maintain a ﬁ rm 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 jumb backwards, but kickback

forces can be controlled by the operator,

if proper precautions are taken.

• When blade is binding, or when inter-

rupting a cut for any reason, release the

trigger and hold the saw motionless in

the material until the blade comes to

a complete stop. Never attempt to re-

move the saw from the work or pull the

saw backward while the blade is in mo-

tion or kickback may occur. Investigate

and take corrective actions to eliminate the

cause of blade binding.

• When restarting a saw in the workpiece,

center the saw blade in the kerf and

check that saw teeth are not engaged

into the material. If saw blade is binding,

it may walk up or kickback from the work-

piece as the saw is restarted.

• 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.

• Do not use dull or damaged blade.

Unsharpened or improperly set blades

produce narrow kerf causing excessive

friction, blade binding and kickback.

• Blade depth and bevel adjusting lock-

ing levers must be tight and secure

before making cut. If blade adjustment

shifts while cutting, it may cause binding

and kickback.

• Use extra caution when making a

"plunge cut" (or pocket cut) into ex-

isting walls or other blind areas. The

protruding blade may cut objects that can

cause kickback.

• Check lower guard for proper closing

before each use. Do not operate 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 accidentally dropped, lower guard

may be bent. Raise the lower guard with the

lower guard lever and make sure it moves

freely and does not touch the blade or any

other part, in all angles and depths of cut.

• 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 buildup of debris.

• Lower guard should be retracted

manually only for special cuts such as

"plunge cuts" and "compound cuts".

Raise lower guard by lower guard lever

and as soon as blade enters the mate-

rial, the lower guard must be released.

For all other sawing, the lower guard should

operate automatically.

• Always observe that the lower guard is

covering the blade before placing saw

down on bench or ﬂ oor. 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.

• Maintain labels and nameplates. These

carry important information. If unreadable

or missing, contact a MILWAUKEE service

facility for a free replacement.

• WARNING Some dust created by power

sanding, sawing, grinding, drilling, and

other construction activities contains

chemicals known to cause cancer, birth

defects or other reproductive harm. Some

examples of these chemicals are:

• lead from lead-based paint

• crystalline silica from bricks and cement

and other masonry products, and

• arsenic and chromium from chemically-

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 ventilated area,

and work with approved safety equip-

ment, such as those dust masks that are

specially designed to ﬁ lter out microscopic

particles.