DeWalt DC310 User Manual

If you have questions or comments, contact us.

Pour toute question ou tout commentaire, nous contacter.

Si tiene dudas o comentarios, contáctenos.

1-800-4-DEWALT • www.dewalt.com

INSTRUCTION MANUAL GUIDE D'UTILISATION MANUAL DE INSTRUCCIONES

DC300 36V Cordless Circular Saw DC310 28V Cordless Circular Saw

DC300 Scie circulaire sans fil de 36 volts DC310 Scie circulaire sans fil de 28 volts

DC300 Sierra circular inalámbrica de 36 V DC310 Sierra circular inalámbrica de 28 V

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.

FIG. 1

DC300, 36 Volt 4000 RPM

DC310, 28 Volt 3800 RPM

English

A. SWITCH LOCK-OFF

BUTTON B. TRIGGER SWITCH C. BATTERY PACK D. DEPTH ADJUSTMENT

J J

LEVER E. SHOE F. LOWER GUARD RETRACTING LEVER G. LOWER GUARD H. KEYLESS BLADE

CLAMP (DC300 ONLY)

I. KERF INDICATOR J. BEVEL ADJUSTMENT

LEVER (DC300)

OR KNOB (DC310) K. ADJUSTMENT SCREW L. BLADE LOCK BUTTON

(not shown) M. AUXILARY HANDLE N. BATTERY RELEASE

BUTTON

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY D

EWALT (1-800-433-9258)

EWALT TOOL, CALL US TOLL FREE AT: 1-800-4-

General Safety Rules

WARNING! Read all instructions. Failure to follow all

instructions listed below may result in electric shock, fire and/or serious injury. The term “power tool” in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

1) WORK AREA SAFETY

a) Keep work area clean and well lit. Cluttered or dark areas

invite accidents.

b) 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.

c) Keep children and bystanders away while operating a

power tool. Distractions can cause you to lose control.

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet. Never modify

the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and

matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or grounded surfaces

such as pipes, radiators, ranges and refrigerators. There

is an increased risk of electric shock if your body is earthed or grounded.

c) Do not expose power tools to rain or wet conditions.

Water entering a power tool will increase the risk of electric shock.

d) Do not abuse the cord. Never use the cord for carrying,

pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or

entangled cords increase the risk of electric shock. Replace or repair damaged cords. Make sure your extension cord is in good condition. Use only 3-wire extension cords that have 3-prong grounding-type plugs and 3-pole receptacles that accept the tool’s plug.

e) When operating a power tool outdoors, use an extension

cord suitable for outdoor use. Use of a cord suitable for

outdoor use reduces the risk of electric shock. 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. The following table 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.

Recommended Minimum Wire Size

for Extension Cords

Total Length of Cord

25 ft. 50 ft. 75 ft. 100 ft. 125 ft. 150 ft. 175 ft.

7.6 m 15.2 m 22.9 m 30.5 m 38.1 m 45.7 m 53.3 m

Wire Size AWG

18 18 16 16 14 14 12

3) PERSONAL SAFETY

a) Stay alert, watch what you are doing and use common

sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while

operating power tools may result in serious personal injury.

b) Use safety equipment. Always wear eye protection. Safety

equipment such as dust mask, non-skid safety shoes, hard

English

hat, or hearing protection used for appropriate conditions will reduce personal injuries.

c) Avoid accidental starting. Ensure the switch is in the

off-position before plugging in. Carrying power tools with

your finger on the switch or plugging in power tools that have the switch on invites accidents.

d) Remove any adjusting key or wrench before turning the

English

power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

e) Do not overreach. Keep proper footing and balance at

all times. This enables better control of the power tool in

unexpected situations.

f) Dress properly. Do not wear loose clothing or jewellery.

Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in

moving parts. Air vents often cover moving parts and should also be avoided.

g) If devices are provided for the connection of dust

extraction and collection facilities, ensure these are connected and properly used. Use of these devices can

reduce dust-related hazards.

4) POWER TOOL USE AND CARE

a) Do not force the power tool. Use the correct power tool

for your application. The correct power tool will do the job

better and safer at the rate for which it was designed.

b) Do not use the power tool if the switch does not turn it

on and off. Any power tool that cannot be controlled with the

switch is dangerous and must be repaired.

c) Disconnect the plug from the power source and/or the

battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of

starting the power tool accidentally.

d) Store idle power tools out of the reach of children and do

not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are

dangerous in the hands of untrained users.

e) Maintain power tools. Check for misalignment or binding

of moving parts, breakage of parts and any other condition that may affect the power tools operation. If damaged, have the power tool repaired before use. Many accidents

are caused by poorly maintained power tools.

f) Keep cutting tools sharp and clean. Properly maintained

cutting tools with sharp cutting edges are less likely to bind and are easier to control.

g) Use the power tool, accessories and tool bits etc., in

accordance with these instructions and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from

those intended could result in a hazardous situation.

5) BATTERY TOOL USE AND CARE

a) Ensure the switch is in the off position before inserting

battery pack. Inserting the battery pack into power tools that

have the switch on invites accidents.

b) Recharge only with the charger specified by the

manufacturer. A charger that is suitable for one type of

battery pack may create a risk of fire when used with another battery pack.

c) Use power tools only with specifically designated battery

packs. Use of any other battery packs may create a risk of

injury and fire.

d) When battery pack is not in use, keep it away from other

metal objects like paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals

together may cause burns or a fire.

e) Under abusive conditions, liquid may be ejected from

the battery, avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause

irritation or burns.

6) SERVICE

a) Have your power tool serviced by a qualified repair

person using only identical replacement parts. This will

ensure that the safety of the power tool is maintained.

Additional Safety Rules for Circular Saws

DANGER: Keep hands away from cutting area and blade. Keep

your second hand on auxiliary handle or motor housing. If both

hands are holding the saw, they cannot be cut by the blade.

• Keep your body positioned to either side of the blade, but

not in line with the saw blade. KICKBACK could cause the saw to jump backwards (see KICKBACK).

• Do not reach underneath the work. The guard can not protect

you from the blade below the work.

• Adjust the cutting depth to the thickness of the workpiece.

Less than a full tooth of the blade teeth should be visible below the workpiece.

• Never hold piece being cut in your hands or across your

leg. Secure the workpiece to a stable platform. It is important to support the work properly to minimize body exposure, blade binding, or loss of control.

• Check lower guard for proper closing before 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 Retracting Handle 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 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.

• Lower guard should be retracted manually only for special

cuts such as “Pocket Cuts” and “Compound Cuts.” Raise lower guard by Retracting Handle. As soon as blade enters the material, 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 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.

• Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring.

Contact with a “live” wire will make exposed metal parts of the tool “live” and shock the operator.

• When ripping always use a rip fence or straight edge guide. This improves the accuracy of cut and reduces the chance for blade binding.

• Always use blades with correct size and shape (diamond vs. round) arbor holes. Blades that do not match the mounting hardware of the saw will run eccentrically, causing loss of control.

• 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 operation.

• Avoid cutting nails. Inspect for and remove all nails from lumber before cutting.

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.

English

• 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

English

procedures or conditions and can be avoided by taking proper precautions 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 interrupting 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 remove the saw from the work or pull the saw backward while the blade is in motion 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 the 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. Support 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 locking 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 “Pocket Cut” into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback.

WARNING: ALWAYS use safety glasses. Everyday eyeglasses

are NOT safety glasses. Also use face or dust mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT:

• ANSI Z87.1 eye protection (CAN/CSA Z94.3),

• ANSI S12.6 (S3.19) hearing protection,

• NIOSH/OSHA/MSHA respiratory protection.

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 paints,

• crystalline silica from bricks and cement and other masonry products, and

• arsenic and chromium from chemically-treated lumber (CCA).

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.

• Avoid prolonged contact with dust from power sanding,

sawing, grinding, drilling, and other construction activities. Wear protective clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth, eyes, or

lay on the skin may promote absorption of harmful chemicals.

WARNING: Use of this tool can generate and/or disburse dust,

which may cause serious and permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory protection appropriate for the dust exposure. Direct particles away from face and body.

WARNING: Always use eye protection. All users and bystanders

must wear eye protection that conforms to ANSI Z87.1.

WARNING: Always wear proper personal hearing protection

that conforms to ANSI S12.6 (S3.19) during use. Under some

conditions and duration of use, noise from this product may contribute to hearing loss.

CAUTION: When not in use, place circular saw on a stable surface, shoe side down, where it will not cause a tripping or falling hazard. Some tools with large battery packs will stand

upright on the battery pack but may be easily knocked over.

• The label on your tool may include the following symbols. The

symbols and their definitions are as follows:

V ........... volts A ............. amperes

Hz ......... hertz W ............ watts

min ....... minutes

.... direct current

......... Class I Construction ............ ear thing terminal

............. (grounded) ........... safety alert symbol

......... Class II Construction …/min ..... revolutions or

............. (double insulated) ................reciprocation

BPM ..... beats per minute ................per minute

........... alternating current

o ...........no load speed

Important Safety Instructions for Battery Chargers

SAVE THESE INSTRUCTIONS: This manual contains important safety instructions for battery chargers.

• Before using charger, read all instructions and cautionary markings on charger, battery pack, and product using battery pack.

WARNING: Shock hazard. Do not allow any liquid to get inside

charger.

CAUTION: Burn hazard. To reduce the risk of injury, charge

only D

EWALT batteries. Other types of batteries may burst causing

personal injury and damage.

CAUTION: Under certain conditions, with the charger plugged in

to the power supply, the charger can be shorted by foreign material. Foreign materials of a conductive nature such as, but not limited to, steel wool, aluminum foil, or any buildup of metallic particles should be kept away from charger cavities. Always unplug the charger from the power supply when there is no battery pack in the cavity. Unplug charger before attempting to clean.

• DO NOT attempt to charge the battery pack with any chargers other than the ones in this manual. The charger and battery pack are specifically designed to work together.

• These chargers are not intended for any uses other than

charging D

may result in risk of fire, electric shock or electrocution.

• Do not expose charger to rain or snow.

• Pull by plug rather than cord when disconnecting charger. This will reduce risk of damage to electric plug and cord.

• Make sure that cord is located so that it will not be stepped

on, tripped over, or otherwise subjected to damage or stress.

• Do not use an extension cord unless it is absolutely necessary. Use of improper extension cord could result in risk

of fire, electric shock, or electrocution.

• An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that is 16 gauge has more capacity than 18 gauge. When using more than one extension to make up the total length, be sure each individual extension contains at least the minimum wire size.

• Do not place any object on top of charger or place the

charger on a soft surface that might block the ventilation

EWALT rechargeable batteries. Any other uses

English

slots and result in excessive internal heat. Place the charger in a position away from any heat source. The charger is ventilated through slots in the top and the bottom of the housing.

• Do not mount charger on wall or permanently affix charger to any surface. The charger is intended to use on a flat, stable surface (i.e., table top, bench top).

• Do not operate charger with damaged cord or plug — have

English

them replaced immediately.

• Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way. Take it to an authorized service center.

• Do not disassemble charger; take it to an authorized service center when service or repair is required. Incorrect reassembly may result in a risk of electric shock, electrocution or fire.

• Disconnect the charger from the outlet before attempting any cleaning. This will reduce the risk of electric shock. Removing the battery pack will not reduce this risk.

• NEVER attempt to connect 2 chargers together.

• The charger is designed to operate on standard household

electrical power (120 Volts). Do not attempt to use it on any other voltage.

SAVE THESE INSTRUCTIONS

Introduction

The DC9000 charger is designed to charge DEWALT battery packs in approximately 1 hour. This charger requires no adjustment and is designed to be as easy as possible to operate. Simply place your battery pack into the receptacle of a plugged in charger and it will automatically charge the pack.

Important Safety Instruction for Battery Packs

WARNING: For safe operation, read this manual and manuals

originally supplied with tool before using the charger.

When ordering replacement battery packs, be sure to include catalog number and voltage. Consult the chart on the last page of this manual for compatibility of chargers and battery packs.

The battery pack is not fully charged out of the carton. Before using the battery pack and charger, read the safety instructions below. Then follow charging procedures outlined.

READ ALL INSTRUCTIONS

• Do not incinerate the battery pack even if it is severely damaged or is completely worn out. The battery pack can

explode in a fire. Toxic fumes and materials are created when lithium ion battery packs are burned.

• Do not charge or use battery in explosive atmospheres,

such as in the presence of flammable liquids, gases or dust.

Inserting or removing the battery from the charger may ignite the dust or fumes.

• If battery contents come into contact with the skin, immediately wash area with mild soap and water. If battery liquid gets into the eye, rinse water over the open eye for 15 minutes or until irritation ceases. If medical attention is needed, the battery electrolyte is composed of a mixture of liquid organic carbonates and lithium salts.

• Contents of opened battery cells may cause respiratory irritation. Provide fresh air. If symptoms persists, seek medical attention

WARNING: Burn hazard. Battery liquid may be flammable if

exposed to spark or flame.

• Charge the battery packs only in D

EWALT chargers.

• DO NOT splash or immerse in water or other liquids.

• Do not store or use the tool and battery pack in locations where the temperature may reach or exceed 105°F (40˚) (such as outside sheds or metal buildings in summer).

WARNING: Never attempt to open the battery pack for any

reason. If battery pack case is cracked or damaged, do not insert into charger. Do not crush, drop or damage battery pack. Do not use a battery pack or charger that has received a sharp blow, been dropped, run over or damaged in any way (i.e., pierced with a nail, hit with a hammer, stepped on). Damaged battery packs should be returned to service center for recycling.

WARNING: Fire hazard. Do not store or carry battery so

that metal objects can contact exposed battery terminals.

For example, do not place battery in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails, screws, keys, etc.

Transporting batteries can possibly cause fires if the battery terminals inadvertently come in contact with conductive materials such as keys, coins, hand tools and the like. The

US Department of Transportation Hazardous Material Regulations (HMR) actually prohibit transporting batteries in commerce or on airplanes (i.e., packed in suitcases and carry-on luggage) UNLESS they are properly protected from short circuits. So when transporting individual batteries, make sure that the battery terminals are protected and well insulated from materials that could contact them and cause a short circuit.

The RBRC™ Seal

The RBRC™ (Rechargeable Battery Recycling Corporation) Seal on the lithium ion battery (or battery pack) indicates that the costs to recycle the battery (or battery pack) at the end of its useful life have already been paid by D

RBRC™ in cooperation with D established programs in the United States to facilitate the collection

EWALT.

EWALT and other battery users, has

of spent lithium ion batteries. Help protect our environment and conserve natural resources by returning the spent lithium ion battery to an authorized D

EWALT service center or to your local

retailer for recycling. You may also contact your local recycling center for information on where to drop off the spent battery.

RBRC™ is a registered trademark of the Rechargeable Battery Recycling

Corporation.

Storage Recommendations

1. The best storage place is one that is cool and dry away from direct sunlight and excess heat or cold.

2. Long storage will not harm the battery pack or charger. Under proper conditions, they can be stored for 5 years or more.

Charger

Your battery pack requires a 1 hour DEWALT charger. Be sure to read all safety instructions before using your charger. Consult the chart on the back of this manual for compatibility of chargers and battery packs.

Charging Procedure

1. Plug the charger into an appropriate outlet before inserting the battery pack.

2. Insert the battery pack into the charger. The charger is equipped with a three-light fuel gauge that will blink according to the state of charge of the battery pack.

3. The completion of charge is indicated by the three red lights remaining ON continuously. The pack is fully charged and may be used at this time or left on the charger.

0% - 33% 1st light blinks

33% - 66% 1 66% - 99% 1

100% 1

light on, 2nd light blinks

, 2nd lights on, 3rd light blinks

, 2nd, 3rd lights on

English

Charger Diagnostics

This charger is designed to detect certain problems that can arise with the battery packs or the charger. Problems are indicated by the three red lights flashing together in different patterns.

PROBLEM POWERLINE

When the charger is used with some portable power sources such as generators or sources that convert DC to AC, the charger

English

may temporarily suspend operation. The three red lights will flash together with two fast blinks followed by a pause. This indicates that the power souce is out of limits.

BAD BATTERY

The charger can detect a weak or damaged battery. The three red lights will flash together with rapid blinking. The battery will no longer charge and should be returned to a service center or a collection site for recycling.

BAD CHARGER

The charger will detect if it is not functioning properly. The three red lights will flash together with one fast blink followed by a long blink. The charger will no longer work and should be returned to an authorized service center or replaced.

LEAVING THE BATTERY IN THE CHARGER

The charger and battery pack can be left connected with the red lights glowing indefinitely. The charger will keep the battery pack fresh and fully charged. This charger features an automatic tune-up mode which equals or balances the individual cells in the battery pack to allow it to function at peak capacity. Battery packs should be tuned up weekly or whenever the battery no longer delivers the same amount of work. To use the automatic tune-up mode, place the battery pack in the charger and leave it for at least 8 hours.

Important Charging Notes

1. Longest life and best performance can be obtained if the battery pack is charged when the air temperature is between 65°F and

75°F (18°- 24°C). DO NOT charge the battery pack in an air temperature below +40°F (+4.5°C), or above +105°F (+40.5°C). This is important and will prevent serious damage to the battery pack.

2. The charger and battery pack may become warm to touch while charging. This is a normal condition, and does not indicate a problem. To facilitate the cooling of the battery pack after use, avoid placing the charger or battery pack in a warm environment such as in a metal shed, or an uninsulated trailer.

3. If the battery pack does not charge properly:

a. Check current at receptacle by plugging in a lamp or other

appliance

b. Check to see if receptacle is connected to a light switch

which turns power off when you turn out the lights.

c. Move charger and battery pack to a location where the

surrounding air temperature is approximately 65°F - 75°F (18°- 24°C).

d. If charging problems persist, take the tool, battery pack and

charger to your local service center.

4. The battery pack should be recharged when it fails to produce sufficient power on jobs which were easily done previously. DO NOT CONTINUE to use under these conditions. Follow the charging procedure. You may also charge a partially used pack whenever you desire with no adverse affect on the battery pack.

5. Foreign materials of a conductive nature such as, but not limited to, steel wool, aluminum foil, or any buildup of metallic particles should be kept away from charger cavities. Always unplug the charger from the power supply when there is no battery pack in the cavity. Unplug charger before attempting to clean.

6. Do not freeze or immerse charger in water or any other liquid.

WARNING: Shock hazard. Do not allow any liquid to get inside

charger.

CAUTION: Never attempt to open the battery pack for any

reason. If the plastic housing of the battery pack breaks or cracks, return to a service center for recycling.

Installing and Removing the Battery Pack (Fig. 2, 3)

NOTE: Make sure your battery pack is fully charged.

WARNING: Make certain the switch lock-off button (A) is engaged

to prevent switch actuation before removing or installing battery.

To install the battery pack into the tool handle, align the base of the tool with the rails inside the tool’s handle and slide the battery pack firmly into the handle until you hear the lock snap into place.

FIG. 2

FIG. 3

Switch

Release switch lock-off button (A) by pressing button as shown (Fig.

3). Pull the trigger switch (B) to turn the motor ON. Releasing the

trigger switch turns the motor OFF. Releasing the trigger switch

also automatically actuates lock-off button. NOTE: This tool has no provision to lock the switch in the ON

position, and should never be locked ON by any other means.

Changing Blades

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

DC300 ONLY (FIG. 4, 5)

The DC300 is equipped with a keyless blade clamp (H) and is designed to be tightened by hand. The use of external tools may cause damage to this blade clamp.

FIG. 4

FIG. 5

LOOSEN (clockwise)

English

To remove the battery pack from the tool, press the release button (N) and firmly pull the battery pack out of the tool handle. Insert it into the charger as described in the charger section of this manual.

OPERATION

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

TIGHTEN

P H

(counterclockwise)

To Install the Blade:

1. Place inner clamp washer (O) on saw spindle with the large flat

surface facing out toward the blade (Fig. 4).

2. Retract the lower blade guard (G) and place blade on saw spindle

against the inner clamp washer, making sure that the blade will rotate in the proper direction (the direction of the rotation arrow on the saw blade and the teeth must point in the same direction

English

as the direction of rotation arrow on the lower guard). Do not assume that the printing on the blade will always be facing you when properly installed. When retracting the lower blade guard to install the blade, check the condition and operation of the lower blade guard to assure that it is working properly. Make sure it moves freely and does not touch the blade or any other part, in all angles and depths of cut.

3. Place outer clamp washer (P) on saw spindle with the large flat

surface against the blade and the side with ratchet teeth facing out.

4. Thread the keyless blade clamp (H) into saw spindle by

hand (clamp has left-hand threads and must be turned counterclockwise to tighten, as shown in Figure 5).

5. Depress the blade lock button (L) while turning the saw spindle

by hand until the blade lock engages and the blade stops rotating.

6. Extend the lever on the keyless blade clamp (H) and hand

tighten firmly (Fig. 5).

CAUTION: Never engage the blade lock while saw is running or engage in an effort to stop the tool. Never turn the saw on while the blade lock is engaged. Serious damage to your saw will result.

To Replace the Blade (Fig. 4):

1. Depress the blade lock button (L) and turn the saw spindle

until the blade lock engages and the blade stops rotating. With the blade lock engaged, extend the lever on the keyless blade clamp and turn clockwise (clamp has left-hand threads and must be turned clockwise to loosen, as shown in Figure 5).

2. Remove the keyless blade clamp (H) and outer clamp washer (P) only. Remove old blade.

3. Clean any sawdust that may have accumulated in the guard or clamp washer area and check the condition and operation of the lower blade guard as previously outlined. Do not lubricate this area.

4. Select the proper blade for the application (see Blades). Always use blades that are the correct size (diameter) with the proper size and shape center hole for mounting on the saw spindle. Always assure that the maximum recommended speed (rpm) on the saw blade meets or exceeds the speed (rpm) of the saw.

5. Follow steps 2 through 6 under To Install the Blade, making sure that the blade will rotate in the proper direction.

DC310 ONLY (FIG. 6, 7) To Install the Blade:

1. Place inner clamp washer (Q) on saw spindle with the large flat surface facing out toward the blade (Fig. 6).

FIG. 6

2. Retract the lower blade guard (G) and place blade on saw spindle against the inner clamp washer, making sure that the blade will rotate in the proper direction (the direction of the rotation arrow on the saw blade and the teeth must point in the same direction as the direction of rotation arrow on the saw). Do not assume that the printing on the blade will always be facing you when properly installed. When retracting the lower blade guard to install the blade, check the condition and operation of the lower blade guard to assure that it is working properly. Make sure it moves freely and does not touch the blade or any other part, in all angles and depths of cut.

3. Place outer clamp washer (R) on saw spindle with the large flat surface against the blade with beveled side facing out.

4. Thread blade clamping screw (S) into saw spindle by hand (screw has left-hand threads and must be turned counterclockwise to tighten, as shown in Figure 8).

5. Depress the blade lock (L) while turning the saw spindle with the blade wrench until the blade lock engages and the blade stops rotating (Fig. 7).

6. Tighten the blade clamping screw firmly with the blade wrench.

CAUTION: Never engage the blade lock while saw is running or engage in an effort to stop the tool. Never turn the saw on while the blade lock is engaged. Serious damage to your saw will result.

To Replace the Blade (Fig. 7):

1. To loosen the blade clamping screw (S), depress the blade lock button (L) and turn the saw spindle with the blade wrench until the blade lock engages and the blade stops rotating. With the blade lock engaged, turn the blade clamping screw clockwise with the blade wrench (screw has left-hand threads and must be turned clockwise to loosen).

2. Remove the blade clamping screw (S) and outer clamp washer (R) only. Remove old blade.

FIG. 7

FIG. 8

LOOSEN

(clockwise)

TIGHTEN

(counterclockwise)

3. Clean any sawdust that may have accumulated in the guard or clamp washer area and check the condition and operation of the lower blade guard as previously outlined. Do not lubricate this area.

5. Follow steps 2 through 6 under To Install the Blade, making sure that the blade will rotate in the proper direction.

LOWER BLADE GUARD (DC300 and DC310)

WARNING: The lower blade guard is a safety feature which reduces the risk of serious personal injury. Never use the saw if the lower guard is missing, damaged, misassembled or not working properly. Do not rely on the lower blade guard to

English

protect you under all circumstances. Your safety depends on following all warnings and precautions as well as proper operation of the saw. Check lower guard for proper closing before each use as outlined in Additional Safety Rules for Circular Saws. If the lower blade guard is missing or not working properly, have the saw serviced before using. To assure product safety and reliability, repair, maintenance and adjustment should be performed by an authorized service

English

center or other qualified service organization, always using identical replacement parts.

Blades

WARNING: To minimize the risk of eye injury, always use eye

protection. Carbide is a hard but brittle material. Foreign objects in the workpiece such as wire or nails can cause tips to crack or break. Only operate saw when proper saw blade guard is in place. Mount blade securely in proper rotation before using, and always use a clean, sharp blade.

CAUTION: Do not cut ferrous metals (steel), masonry, glass,

Hardiplank® (or similar masonry-type planking), cement board or tile with this saw.

Do not use abrasive wheels or blades. A dull blade will cause slow, inefficient cutting, overload on the saw motor, excessive splintering, and could increase the possibility of kickback. Please refer to the following table to determine the correct size replacement blade for your model saw.

Model Diameter Arbor

DC300 7-1/4" 5/8" DC310 6-1/2" 5/8"

Use only D or non-carbide plywood/vinyl cutting blades.

If you need assistance regarding blades, please call 1-800-4D

EWALT (1-800-433-9258).

EWALT general purpose cutting, smooth wood cutting,

Cutting Depth

FIG. 9

Adjustment

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

1. Hold the saw firmly and loosen

(clockwise) the depth adjustment lever (Fig. 9, D) and move shoe to obtain the desired depth of cut.

2. Make sure the depth adjustment lever has been retightened

(counterclockwise) before operating saw.

For the most efficient cutting action, set the depth adjustment so that one tooth of the blade will project below the material to be cut. This distance is from the tip of the tooth to the bottom of the gullet in front of it. This keeps blade friction at a minimum, removes sawdust from the cut, results in cooler, faster sawing and reduces the chance of kickback. A method for checking for correct cutting depth is shown in Figure 10. Lay a piece of the material you plan to cut along the side of the blade, as shown, and observe how much tooth projects beyond the material.

NOTE: When using carbide-tipped blades, make an exception to the above rule and allow only one-half of a tooth to project below the material to be cut.

FIG. 10

Bevel Angle Adjustment (Fig. 11)

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before

making any adjustments or removing/installing attachments or accessories.

The full range of the bevel adjustment is from 0˚ to 50˚. The pivot bracket is graduated in increments of 1˚. On the front of the saw is a bevel angle adjustment mechanism (Fig. 11) consisting of a calibrated pivot bracket and a bevel adjustment lever (DC300) or knob (DC310).

FIG. 11

DC300

TO SET THE SAW FOR A BEVEL CUT (FIG.11)

1. Raise the lever or knob (J) to loosen the bevel adjustment and tilt shoe to the desired angle by aligning the pointer with the desired angle mark.

2. Retighten the bevel adjustment by lowering the lever.

DC310

Bevel Detent (DC300 only)

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

The saw is equipped with a bevel detent feature. As you tilt the shoe you will hear a click and feel the shoe stop at both 22.5 and 45 degrees. If either of these is the desired angle, retighten the lever (J) by lowering it. If you desire another angle, continue tilting the shoe until the pointer aligns with the desired mark. Retighten lever (J) by lowering it.

Shoe Adjustment for 90˚ Cuts

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

IF ADDITIONAL ADJUSTMENT IS NEEDED (FIG. 12)

1. Adjust the saw to 0˚ bevel.

2. Retract blade guard. Place the saw on blade side.

3. Loosen bevel adjustment lever or knob (J). Place a square

against the blade and shoe to adjust the 90˚ setting.

4. Turn the adjustment screw (K) on the underside of the shoe

until the blade and the shoe are both in flush contact with the square. Retighten the bevel adjust lever or knob.

5. Confirm the accuracy of the setting by checking the squareness

of an actual cut on a scrap piece of material.

FIG. 13

FIG. 12

Kerf Indicator

The front of the saw shoe has a kerf indicator for vertical and bevel cutting. This indicator enables you to guide the saw along cutting lines penciled on the material being cut. The indicator lines up with the left (outer) side of the saw blade, which makes the slot or “kerf” cut by the moving blade fall to the right of the indicator. Guide along the penciled cutting line so that the kerf falls into the waste or surplus material.

English

FIG. 14

DO support board or panel NEAR the cut.

FIG. 15

DON’T support board or panel AWAY from the cut.

English

SUPPORT

Workpiece Support

WARNING: It is important to support the work properly and to

hold the saw firmly to prevent loss of control which could cause personal injury. Figure 13 illustrates proper hand support of the saw. Maintain a firm grip with both hands on the saw and position your body and arm to allow you to resist kickback if it occurs.

Figure 13 shows proper sawing position. Note that hands are kept away from cutting area. To avoid kickback, DO support board or panel NEAR the cut (Fig. 14). DON’T support board or panel away from the cut (Fig. 15). Place the work with its “good” side – the one on which appearance is most important – down. The saw cuts upward, so any splintering will be on the work face that is up when you cut it.

Cutting

Place the wider portion of the saw shoe on that part of the workpiece which is solidly supported, not on the section that will fall off when the cut is made. As examples, Figure 13 illustrates the RIGHT way to cut off the end of a board. Always clamp work. Don’t try to hold short pieces by hand! Remember to support cantilevered and overhanging material. Use caution when sawing material from below.

Be sure saw is up to full speed before blade contacts material to be cut. Starting saw with blade against material to be cut or pushed forward into kerf can result in kickback. Push the saw forward at a speed which allows the blade to cut without laboring. Hardness and toughness can vary even in the same piece of material, and knotty or damp sections can put a heavy load on the saw. When this happens, push the saw more slowly, but hard enough to keep working without much decrease in speed. Forcing the saw can cause rough cuts, inaccuracy, kickback, and over-heating of the motor. Should your cut begin to go off the line, don’t try to force it back on. Release the switch and allow blade to come to a complete stop. Then you can withdraw the saw, sight anew, and start a new cut slightly inside the wrong one. In any event, withdraw the saw if you must shift the cut. Forcing a correction inside the cut can stall the saw and lead to kickback.

IF SAW STALLS, RELEASE THE TRIGGER AND BACK THE SAW UNTIL IT IS LOOSE. BE SURE BLADE IS STRAIGHT IN THE CUT AND CLEAR OF THE CUTTING EDGE BEFORE RESTARTING.

As you finish a cut, release the trigger and allow the blade to stop before lifting the saw from the work. As you lift the saw, the spring-tensioned telescoping guard will automatically close under the blade. Remember the blade is exposed until this occurs. Never reach under the work for any reason. When you have to retract the telescoping guard manually (as is necessary for starting pocket cuts) always use the retracting lever.

NOTE: When cutting thin strips, be careful to ensure that small cutoff pieces don’t hang up on inside of lower guard.

RIPPING (FIG. 16)

Ripping is the process of cutting wider boards into narrower strips – cutting grain lengthwise. Hand guiding is more difficult for this type of sawing and the use of a rip fence is recommended.

FIG. 16

POCKET CUTTING (FIG. 17)

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

WARNING: Never tie the blade guard in a raised position. Never

move the saw backwards when pocket cutting. This may cause the unit to raise up off the work surface which could cause injury.

A pocket cut is one that is made in a floor, wall, or other flat surface.

1. Adjust the saw shoe so the

blade cuts at desired depth.

2. Tilt the saw forward and rest

front of the shoe on material to be cut.

3. Using the retracting lever,

retract lower blade guard to an upward position. Lower rear of shoe until blade teeth almost touch cutting line.

FIG. 17

INSTALL

RIP FENCE

IN THIS

DIRECTION

4. Release the blade guard(its contact with the work will keep it in position to open freely as you start the cut). Remove hand from guard lever and firmly grip auxilary handle, (M) as shown in Figure 17. Position your body and arm to allow you to resist kickback if it occurs.

5. Make sure blade is not in contact with cutting surface before starting saw.

6. Start the motor and gradually lower the saw until its shoe rests flat on the material to be cut. Advance saw along the cutting line until cut is completed.

7. Release trigger and allow blade to stop completely before withdrawing the blade from the material.

8. When starting each new cut, repeat as above.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from battery pack before making any adjustments or removing/installing attachments or accessories.

Cleaning

WARNING: Never use solvents or other harsh chemicals for

cleaning the non-metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.

CHARGER CLEANING INSTRUCTIONS

WARNING: Shock hazard. Disconnect the charger from the AC

outlet before cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth or soft non-metallic brush. Do not use water or any cleaning solutions.

Lubrication

Self lubricating ball and roller bearings are used in the tool and relubrication is not required. However, it is recommended that, once

English

a year, you take or send the tool to a certified service center for a thorough cleaning, inspection, and lubrication of the gear case.

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustments (including brush inspection and replacement) should be performed by a D center, a D

English

service personnel. Always use identical replacement parts.

EWALT authorized service center or other qualified

EWALT factory service

Accessories

WARNING: Since accessories, other than those offered by

EWALT, have not been tested with this product, use of such

accessories with this tool could be hazardous. To reduce the risk of injury, only D

EWALT, recommended accessories should be used

with this product.

Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory for your tool, please contact D Baltimore, MD 21286, call 1-800-4-D

EWALT Industrial Tool Co., 701 East Joppa Road,

EWALT (1-800-433-9258) or

visit our website www.dewalt.com.

Three Year Limited Warranty

DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit www.dewalt.com or call 1-800-4-D 433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

EWALT (1-800-

In addition to the warranty, D

EWALT tools are covered by our:

1 YEAR FREE SERVICE

EWALT will maintain the tool and replace worn parts caused by

D normal use, for free, any time during the first year after purchase.

2 YEARS FREE SERVICE ON D

EWALT BATTERY PACKS

DC9096, DC9091, DC9071, DC9360 and DC9280

90 DAY MONEY BACK GUARANTEE

If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund – no questions asked.

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained either in the packaging, call the local company or see the website for warranty information.

FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are missing, call 1-800-4-D

EWALT for a free

replacement.

Patent Notification

Manufactured under one or more of the following U.S. patents:

6859013 6329788 6175211

Other patents pending.

6133713 6057608

6653815

English

FIG. 1

DC300, 36 Volt 4000 tr/min

DC310, 28 Volt 3800 tr/min

Français

A. Bouton de verrouillage

de la gâchette B. Gâchette C. Bloc-piles D. Levier de réglage de la

J J

profondeur E. Semelle F. Levier d’escamotage du

protège-lame inférieur G. Protège-lame inférieur H. Bride de lame sans clé

(DC300 seulement)

I. Indicateur de trait de

scie

J. Levier de réglage

d’angle de biseau (DC300) or bouton de réglage d’angle

de biseau (DC310) K. Vis de réglage l. Bouton de verrouillage

de la lame (non illustré) M. Poignée auxiliaire N. Bouton de dégagement

du bloc-piles

+ 44 hidden pages

DeWalt DC310 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual