4100NH - Concrete saw MAKITA - Free user manual and instructions

USER MANUAL 4100NH MAKITA

INSTRUCTION MANUAL MANUEL D'INSTRUCTION MANUAL DE INSTRUCCIONES

Cutter Scie diamant Cortadora de Marmol

4100NH

007690

DOUBLE INSULATION

DOUBLE ISOLATION

DOBLE AISLAMENTO

△WARNING:

For your personal safety, READ and UNDERSTAND before using. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

△AVERTISSEMENT:

Model	4100NH
Wheel diameter	110 mm (4-3/8")
Hole diameter	20 mm (3/4")
Max. cutting capacity	34 mm (1-3/8")
No load speed (RPM)	13,000 /min.
Overall length	218 mm (8-5/8")
Net weight	2.7 kg (5.9 lbs)

• Due to our continuing programme of research and development, the specifications herein are subject to change without notice.
• Note: Specifications may differ from country to country.

USA002-2

GENERAL SAFETY RULES

(For All Tools)

WARNING! Read and understand all instructions.

Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury.

SAVE THESE INSTRUCTIONS.

Work Area

1. Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

1. 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 electrician to install a polarized outlet. Do not change the plug in any way. Double insulation eliminates the need for the three wire grounded power cord and grounded power supply system.
2. Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is grounded.
3. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
4. Do not abuse the cord. Never use the cord to

carry the tools or pull the plug from an outlet. Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged cords immediately. Damaged cords increase the risk of electric shock.

1. When operating a power tool outside, use an outdoor extension cord marked "W-A" or "W". These cords are rated for outdoor use and reduce the risk of electric shock.

Personal Safety

1. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury.
2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
3. Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your finger on the switch or plugging in tools that have the switch on invites accidents.
4. Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that is left attached to a rotating part of the tool may result in personal injury.
5. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better control of the tool in unexpected situations.
6. Use safety equipment. Always wear 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

1. 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.

1. Do not force tool. Use the correct tool for your application. The correct tool will do the job better and safer at the rate for which it is designed.
2. Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source before making any adjustments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the tool accidentally.
4. Store idle tools out of reach of children and other untrained persons. Tools are dangerous in the hands of untrained users.
5. Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained tools with sharp cutting edges are less likely to bind and are easier to control.

6. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool's operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools.

7. Use only accessories that are recommended by the manufacturer for your model. Accessories that may be suitable for one tool, may become hazardous when used on another tool.

SERVICE

1. Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury.
2. When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthorized parts or failure to follow Maintenance instructions may create a risk of electric shock or injury.

USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table 1 shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

Table 1: Minimum gage for cord

Ampere Rating		Volts	Total length of cord in feet
		120 V	25 ft.	50 ft.	100 ft.	150 ft.
More Than	Not More Than	AWG
0	6		18	16	16	14
6	10		18	16	14	12
10	12		16	16	14	12
12	16		14	12	Not Recommended

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USB073-1

SPECIFIC SAFETY RULES

DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to cutter safety rules. If you use this tool unsafely or incorrectly, you can suffer serious personal injury.

1. DANGER! Keep hands away from cutting area and wheel. Keep your second hand on auxiliary handle or motor housing. If both hands are holding the tool, they cannot be cut by the wheel.
2. Keep your body positioned to either side of the wheel, but not in line with the wheel. KICKBACK could cause the tool to jump backwards. (See "Causes and Operator

Prevention of Kickback")

1. Do not reach underneath the work. Do not attempt to remove cut material when wheel is moving.
   CAUTION: Wheels coast after turn off.
2. Always observe that the wheel has stopped spinning before placing tool down on bench or floor. A coasting wheel will cause the tool to walk backwards, cutting whatever is in its path. Be aware of the time it takes for the wheel to stop after switch is released.
3. NEVER hold piece being cut in your hands or across your leg. It is important to support the work properly to minimize body exposure, wheel binding, or loss of control.
4. 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 make exposed metal parts of the tool "live" and shock the operator.

1. When ripping always use a rip fence or straight edge guide. This improves the accuracy of cut and reduces the chance for wheel binding.
2. Always use wheels with correct size and shape (diamond vs. round) arbor holes. Wheels that do not match the mounting hardware of the tool will run eccentrically, causing loss of control.
3. Never use damaged or incorrect wheel washers or bolts. The wheel washers and bolt were specially designed for your tool, for optimum performance and safety of operation.
4. Causes and Operator Prevention of Kickback: Kickback is a sudden reaction to a pinched, bound, or misaligned wheel, causing an uncontrolled tool to lift up and out of the workpiece toward the operator.

When the wheel is pinched or bound tightly by the kerf closing down, the wheel stalls and the motor reaction drives the unit rapidly back toward the operator.

If the wheel becomes twisted or misaligned in the cut, the teeth at the back edge of the wheel can dig into the top surface of the material being cut causing the wheel to climb out of the kerf and jump back toward the operator.

Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

Maintain a firm grip on the tool 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 wheel is binding, or when interrupting a cut for any reason, release the trigger and hold the tool motionless in the material until the wheel comes to a complete stop. Never attempt to remove the tool from the work or pull the tool backward while the wheel is in motion or KICKBACK may occur. Investigate and take corrective actions to eliminate the cause of wheel binding.

When restarting a tool in the workpiece, center the wheel in the kerf and check that teeth are not engaged into the material. If wheel is binding, it may walk up or KICKBACK from the workpiece as the tool is restarted.

Support large panels to minimize the risk of wheel 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.

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

Do not use dull or damaged wheel. Unsharpened or improperly set wheels produce narrow kerf causing excessive friction, wheel binding and KICKBACK.

Wheel depth and bevel adjusting locking levers must be tight and secure before making cut. If wheel adjustment shifts while cutting, it may cause binding and KICKBACK.

Use extra caution when making a "Pocket Cut" into existing walls or other blind areas. The protruding wheel may cut objects that can cause KICKBACK.

NEVER place your hand or fingers behind the tool. If kickback occurs, the tool could easily jump backwards over your hand, leading to serious personal injury.

1. When operating the tool, keep the cord away from the cutting area and position it so that it will not be caught on the workpiece during the cutting operation. Operate with proper hand support, proper workpiece support, and supply cord routing away from the work area. WARNING: It is important to support the workpiece properly and to hold the tool firmly to prevent loss of control which could cause personal injury.
2. Use only diamond wheels. NEVER use tool with wood cutting blades or other sawblades. Such blades when used on this tool frequently kick and cause loss of control leading to personal injury.
3. Check the wheel carefully for cracks or damage before operation. Replace cracked or damaged wheel immediately.
4. Use only flanges specified for this tool.
5. Be careful not to damage the spindle, flanges (especially the installing surface) or bolt. Damage to these parts could result in wheel breakage.
6. Make sure the wheel is not contacting the workpiece before the switch is turned on. Wait until the wheel attains full speed before cutting.
7. Stop operation immediately if you notice anything abnormal.

8. Never attempt to cut with the tool held upside down in a vise. This can lead to serious accidents, because it is extremely dangerous.

9. Do not stop the wheel by lateral pressure on the disc.

10. Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.
11. The tool must be used only for dry cutting. DO NOT use water.

SAVE THESE INSTRUCTIONS.

WARNING:

MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

USD201-2

Symbols

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

FUNCTIONAL DESCRIPTION

CAUTION:

Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool.

Adjusting the depth of cut

1. Wing bolt
2. Base

007691

Loosen the wing bolt on the depth guide and move the base up or down. At the desired depth of cut, secure the

base by tightening the wing bolt.

CAUTION:

After adjusting the depth of cut, always tighten the wing bolt securely.

Sighti ng

007693

Align the edge of the front of the base with your cutting line on the workpiece.

Switch action

CAUTION:

• Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released.

007692

1. Switch trigger
2. Lock-off button

To prevent the switch trigger from being accidentally pulled, a lock-off button is provided. To start the tool, push in the lock-off button and pull the switch trigger. Release the switch trigger to stop.

ASSEMBLY

CAUTION:

Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Installing or removing diamond wheel

007695

1. Wrench
2. Socket wrench
3. Outer flange
4. Diamond wheel

Hold the outer flange with the wrench and loosen the hex bolt clockwise with the socket wrench. Then remove the hex bolt, outer flange and diamond wheel.

To install the wheel, follow the removal procedure in reverse. Always install the wheel so that the arrow on the wheel points in the same direction as the arrow on the blade case.

BE SURE TO TIGHTEN THE HEX BOLT SECURELY.

007696

1. Inner flange
2. Diamond wheel
3. Outer flange
4. Hex bolt

CAUTION:

Use only the Makita wrench to install or remove the wheel.

OPERATION

007694

Hold the tool firmly. Set the base plate on the workpiece to be cut without the wheel making any contact. Then turn the tool on and wait until the wheel attains full speed. Move the tool forward over the workpiece surface, keeping it flat and advancing smoothly until the cutting is completed. Keep your cutting line straight and your speed of advance uniform.

CAUTION:

• Be sure to move the tool forward in a straight line and gently. Forcing and exerting excessive pressure or allowing the wheel to bend, pinch or twist in the cut can cause overheating of the motor and dangerous kickback of the tool.

MAINTENANCE

CAUTION:

Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

After use

Blow away dust from the inside of the tool by running the tool at an idle for a while. Brush off accumulation of dust on the base. Accumulation of dust in the motor or on the base may cause a malfunction of the tool.

Replacing carbon brushes

1. Limit mark
001145

Remove and check the carbon brushes regularly. Replace when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical 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.

1. Screwdriver
2. Brush holder cap
007697

To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

ACCESSORIES

CAUTION:

These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

4" - 4-3/8" Continuos rimmed diamond wheels
Wrench 22
- Socket wrench
Rip fence (Guide rule)

MAKITA LIMITED ONE YEAR WARRANTY

Warranty Policy

Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of defects from workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of Makita's Factory or Authorized Service Centers. If inspection shows the trouble 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, INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND AFTER THE TERM OF THIS WARRANTY.

MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTYES, INCLUDING IMPLIED WARRANTYES OF "MERCHANTABILITY" AND "FITNESS FOR A SPECIFIC PURPOSE," AFTER THE ONE YEAR TERM OF THIS WARRANTY.

This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.

FRANÇAIS
SPÉCIFICATIONS

construction, catalogue II

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• lead from lead-based paints,
  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 equipment, such as those dust masks that are specially designed to filter out microscopic particles.

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