background image

5

not

touch

tool

housing.

Leaving

blade

exposed is VERY DANGEROUS and can
lead to serious personal injury.

3.

Check the operation and condition 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.

4.

Lower guard should be retracted manually
only for special cuts such as “Pocket
Cuts” and “Compound Cuts.” Raise lower
guard by retracting Lever. As soon as
blade enters the material, lower guard
must be released.

For all other sawing, the

lower guard should operate automatically.

5.

Always observe that the lower guard is
covering the blade before placing 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.

6.

NEVER hold piece being cut in your hands
or across your leg.

It is important to support

the work properly to minimize body exposure,
blade binding, or loss of control.

7.

Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or
its own cord.

Contact with a “live” wire will

also make exposed metal parts of the tool
“live” and shock the operator.

8.

When ripping always use a rip fence or
straight edge guide.

This improves the

accuracy of cut and reduces the chance for
blade binding.

9.

Always use blades with correct size and
shape (diamond vs. round) arbor holes.

Blades that do not match the mounting hard-
ware of the saw will run eccentrically, causing
loss of control.

10. Never use damaged or incorrect blade

washers or bolts.

The blade washers and

bolt were specially designed for your saw, for
optimum performance and safety of opera-
tion.

11. Causes and Operator Prevention of Kick-

back:

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 tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper precau-
tions as given below:

Maintain a firm grip with both hands on
the saw and position your body and arm
to allow you to resist KICKBACK forces.

KICKBACK forces can be controlled by the
operator, if proper precautions are taken.

When blade is binding, or when interrupt-
ing a cut for any reason, release the trig-
ger and hold the saw motionless in the
material until the blade comes to a com-
plete stop. Never attempt to remove the
saw from the work or pull the saw back-
ward while the blade is in motion or KICK-
BACK 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 workpiece as the
saw is restarted.

Support large panels to minimize 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 as shown in

Fig. 1.

To minimize the risk of blade pinching and
kickback. When cutting operation requires
the resting of the saw on the workpiece, the
saw should be rested on the larger portion
and the smaller piece cut off.

Summary of Contents for 4200NH

Page 1: ... t o o l s c o m Circular Saw 110 mm 4 3 8 MODEL 4200NH DOUBLE INSULATION I N S T R U C T I O N M A N U A L WARNING For your personal safety READ and UNDERSTAND before using SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE ...

Page 2: ...ile operating a power tool Distrac tions can cause you to lose control Electrical Safety 4 Double insulated tools are equipped with a polarized plug one blade is wider than the other This plug will fit in a polarized outlet only one way If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified elec trician to install a polarized outlet Do not change...

Page 3: ...r eye protection Dust mask non skid safety shoes hard hat or hearing protection must be used for appropriate conditions Ordinary eye or sun glasses are NOT eye protection Tool Use and Care 15 Use clamps or other practical way to secure and support the workpiece to a stable platform Holding the work by hand or against your body is unstable and may lead to loss of control 16 Do not force tool Use th...

Page 4: ...housing If both hands are holding the saw they cannot be cut by the blade Keep your body positioned to either side of the saw blade but not in line with the saw blade KICKBACK could cause the saw to jump backwards See Causes and Oper ator Prevention of Kickback Do not reach underneath the work The guard can not protect you from the blade below the work Do not attempt to remove cut material when bl...

Page 5: ... opera tion 11 Causes and Operator Prevention of Kick back 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 twiste...

Page 6: ...rce the saw Forcing the saw can cause uneven cuts loss of accuracy and possible kickback Push the saw forward at a speed so that the blade cuts without slow ing 12 Use extra caution when cutting damp wood pressure treated lumber or wood containing knots Adjust speed of cut to maintain smooth advancement of tool without decrease in blade speed 13 Adjustments Before cutting be sure depth and bevel a...

Page 7: ...de down in a vise This is extremely dangerous and can lead to seri ous accidents 18 WARNING Blade coasts to stop after switch is released Contact with coasting blade can cause serious injury Before setting the tool down after completing a cut be sure that the lower telescoping guard has closed and the blade has come to a complete stop 19 Some material contains chemicals which may be toxic Take cau...

Page 8: ...fety rules stated in this instruction manual may cause serious personal injury SYMBOLS USD201 2 The followings show the symbols used for tool V volts A amperes Hz hertz alternating current no load speed Class II Construction min revolutions or reciprocation per minute n ...

Page 9: ...s set cut depth so that no more than a blade tooth length projects below workpiece surface Using proper cut depth helps to reduce potential for dangerous KICKBACKS which can cause personal injury Bevel cutting Loosen the clamping screw on the bevel scale plate on the front of the base Set for the desired angle 0 45 by tilting accordingly then tighten the clamping screw securely Sighting For straig...

Page 10: ... pointing up at the front of the tool Use only the Makita wrench to install or remove the blade To remove the blade hold the outer flange with the wrench so that it cannot revolve then use the socket wrench to loosen the hex bolt clockwise Then remove the hex bolt outer flange and blade To install the blade follow the removal procedure in reverse BE SURE TO TIGHTEN THE HEX BOLT COUNTER CLOCKWISE S...

Page 11: ...uniform If the cut fails to properly follow your intended cut line do not attempt to turn or force the tool back to the cut line Doing so may bind the blade and lead to dangerous kickback and possible serious injury Release switch wait for blade to stop and then withdraw tool Realign tool on new cut line and start cut again Attempt to avoid positioning which exposes operator to chips and wood dust...

Page 12: ...n and free to slip in the holders Both carbon brushes should be replaced at the same time Use only iden tical carbon brushes Use a screwdriver to remove the brush holder caps Take out the worn carbon brushes insert the new ones and secure the brush holder caps To maintain product SAFETY and RELIABILITY repairs any other maintenance or adjustment should be performed by Makita Authorized or Factory ...

Page 13: ... accessory or attachment for its stated purpose If you need any assistance for more details regarding these accessories ask your local Makita service center Steel Carbide tipped saw blades Rip fence Guide rule Wrench 22 Socket wrench 9 Combination General purpose blade for fast and smooth rip crosscuts and miters Crosscutting For smoother cross grain cuts Slices cleanly against grain Mild steel Fo...

Page 14: ...14 Memo ...

Page 15: ...15 Memo ...

Page 16: ...16 Memo ...

Page 17: ...17 First Class Postage Required Post Office will not deliver without proper postage Makita U S A Inc 14930 Northam Street La Mirada CA 90638 5753 Fold Cut ...

Page 18: ...urability Power Other Design Features Size Price Makita Brand 5 Any comments MAIL THIS PORTION Your answer to the following questions are appreciated BE SURE TO COMPLETE THE CUSTOMER S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS DATE PURCHASED MODEL NO SERIAL NO INTL LAST NAME COMPANY NAME STREET ADRESS CITY STATE AGE ZIP CODE PHONE AREA CODE STATUS Married SEX M F Single MONTH DAY YEAR Under...

Page 19: ...N 37454 Ann Arbor Trail Livonia MI 48150 313 432 1012 MINNESOTA 6427 Penn Ave South Richfield MN 55423 612 869 5199 MISSOURI 9876 Watson Road St Louis MO 63126 2221 314 909 9889 NEBRASKA 4129 S 84th St Omaha NE 68127 402 597 2925 NEVADA 3375 S Decatur Blvd Suites 22 24 Las Vegas NV 89102 702 368 4277 NEW JERSEY 251 Herrod Blvd Dayton NJ 08810 1539 609 655 1212 NEW MEXICO 5805 Menaul Blvd NE Albuqu...

Page 20: ...uble is caused by defective workmanship or material Makita will repair or at our option replace without charge This Warranty does not apply where repairs have been made or attempted by others repairs are required because of normal wear and tear The tool has been abused misused or improperly maintained alterations have been made to the tool IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT INCIDE...

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