DeWalt D28700 User Manual

Questions? See us on the World Wide Web at www.dewalt.com

¿Dudas? Visítenos en Internet: www.dewalt.com

Dúvidas? Visite-nos na Internet em www.dewalt.com.br

INSTRUCTION MANUAL MANUAL DE INSTRUCCIONES MANUAL DE INSTRUÇÕES

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

INSTRUÇÕES DE OPERAÇÃO, CENTRO DE SERVIÇOS E CERTIFICADO DE GARANTIA. ADVERTÊNCIA: LEIA ESTAS INSTRUÇÕES ANTES DE UTILIZAR O PRODUTO.

D28700 14" (355 mm) Chop Saw Cortadora/Tronzadora de metales de 14" (355 mm) Serra de Corte Rápido de 355 mm (14")

Important Safety Instructions

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

• KEEP GUARDS IN PLACE and in working order.

English

• REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of

checking to see that keys and adjusting wrenches are removed from tool before turning it on.

• KEEP WORK AREA CLEAN. Cluttered areas and benches

invite injuries.

• DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use

power tools in damp or wet locations, or expose them to rain. Keep work area well lighted.

• KEEP CHILDREN AWAY. All visitors should be kept at a safe

distance from work area.

• MAKE WORKSHOP KID PROOF with padlocks, master

switches, or by removing starter keys.

• DON’T FORCE TOOL. It will do the job better and safer at the

rate for which it was designed.

• USE RIGHT TOOL. Don’t force tool or attachment to do a job for

which it was not designed.

• USE PROPER EXTENSION CORD. Make sure your extension

cord is in good condition. When using and 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.

Voltage (Volts)

120 - 127V 0 - 7 7 - 15 15 - 30 30 - 50 220 - 240V 0 - 15 15 - 30 30 - 60 60 - 100

Rated Ampere

range

0 - 6A 1.0 1.5 1.5 2.5

6 - 10A 1.0 1.5 2.5 4.0 10 - 12A 1.5 1.5 2.5 4.0 12 - 16A 2.5 4.0 Not Recommended

• WEAR PROPER APPAREL. Do not wear loose clothing,

neckties, rings, bracelets, or other jewelry which may get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.

often cover moving parts and should also be avoided.

• ALWAYS USE SAFETY GLASSES which meet the ANSI Z87.1 requirements. Also use face or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact resistant lenses, they are not safety glasses.

• SECURE WORK. Use clamps or a vise to hold work. It’s safer than using your hand and it frees both hands to operate tool.

• DON’T OVERREACH. Keep proper footing and balance at all times.

• MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest performance. Follow instructions for lubricating and changing accessories.

• DISCONNECT TOOLS before servicing; when changing accessories, such as blades, bits, cutters, and the like.

• REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off position before plugging in.

Total length of cord in meters (m)

Minimal cross-sectional area of the

cord in meters (mm

)

Air vents

• USE RECOMMENDED ACCESSORIES. Consult the instruction

manual for recommended accessories. The use of improper accessories may cause risk of injury to persons.

• NEVER STAND ON TOOL. Serious injury could occur if the tool

is tipped or if the cutting tool is unintentionally contacted.

• CHECK DAMAGED PARTS. Before further use of the tool,

a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function — check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.

• NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don’t leave tool until it comes to a complete stop.

• REPLACEMENT PARTS. When servicing use only identical replacement parts.

• TO REDUCE THE RISK OF ELECTRIC SHOCK:

a. This equipment may have 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, contact a qualified electrician to install the proper outlet.

b. The tool may be equipped with a 3-prong grounding type

plug. This plug is to be used in a grounded outlet only. If the plug does not fit, contact a qualified electrician to install the proper outlet.

c. Do not alter the plug in any way.

Additional Safety Rules for Chop Saws

• Always wear proper eye and respiratory protection.

• Before using, inspect the cutting wheel for cracks or flaws. If such a crack or flaw is evident, discard the wheel. The wheel should also be inspected whenever you think the tool may have been dropped. Flaws may cause wheel

breakage.

• When starting the tool with a new or replacement wheel or if you are unsure of the condition of the wheel, hold the tool in a well protected area and let it run for one minute. If the

wheel has an undetected crack or flaw, it should burst in less than one minute. Never start the tool with a person in line with the wheel. This includes the operator.

• In operation, avoid bouncing the wheel or giving it rough treatment. If this occurs, stop the tool and inspect the wheel for

cracks or flaws.

• Clean your chop saw periodically following the procedure in this manual.

• Do not remove wheel guards or base.

• ALWAYS US E THE VISE OR SPECIAL FIXTURE TO CLAMP WORK SECURELY. Other aids such as spring, bar, or C-clamps may be appropriate for certain sizes and shapes of workpiece. Use care in selecting and placing these clamps and make a dry run before making a cut.

• Use only 14" type 1 wheels rated at 4100 rpm or higher.

• Allow cut off parts to cool before handling.

• Do not attempt to cut wood or plastic with this tool.

• NEVER CUT MAGNESIUM WITH THIS TOOL.

• Use chop saw in a well-ventilated area.

• Turn chop saw off before removing any pieces from the base.

• DO NOT CUT ELECTRICALLY LIVE MATERIAL.

• Do not use circular saw blades or any other toothed blades with this tool. Serious injury may result.

• DO NOT OPERATE THIS TOOL NEAR FLAMMABLE LIQUIDS, GASES OR DUST. Sparks or hot chips from cutting or arcing motor brushes may ignite com bus tible materials.

• Do not use the side of the abrasive wheel as a deburring grinder. This will substantially weaken the wheel creating an unsafe condition. The wheel may come apart.

English

CAUTION: Wear appropriate hearing protection during use.

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

CAUTION: Spark deflector will get hot. Avoid touching or adjusting

while hot. Keep cordset and materials away from spark deflector.

WARNING: Some dust created by power sanding, sawing,

grinding, drilling, and other construction activities contains chemi-

English

cals known to the State of California to cause cancer, birth defects, or other reproduc tive 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: Always use NIOSH/OSHA approved respiratory

protection appropriate for the dust exposure. Direct particles away from face and body.

For your convenience and safety, the following warnings are on your Heavy-Duty 14" (355 mm) Chop Saw:

FOR SAFE OPERATION READ THE INSTRUCTION

MANUAL.

DO NOT USE TOOTHED BLADES. USE ONLY REINFORCED WHEELS RATED 4100 RPM OR

HIGHER.

WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT

PARTS.

ALWAYS: WEAR EYE PROTECTION, USE GUARDS, CLAMP

WORK IN VISE, USE PROPER RESPIRATORY PROTECTION.

DO NOT EXPOSE TO RAIN OR USE IN

DAMP LOCATIONS.

ONLY USE CHOP SAW WHEEL OF A MAX.

THICKNESS OF 3.1 mm AND A MAX. DIAMETER OF 355 mm.

FEATURES (Fig. 1, 4)

A. Lock pin J. Wheel B. Spark deflector screw K. Guard C. Spark deflector L. Wheel lock lever D. Base M. Depth stop bolt E. Fence N. Trigger switch F. Vise O. Padlock hole G. 8 mm hex wrench P. Jam nut H. Crank Q. Fence bolts I. Vise lever

Power Supply

Be sure your power supply agrees with the nameplate marking. A voltage decrease of more than 10% will cause a loss of power

and overheating.

Cutting Capacity

The wide vise opening and high pivot point provide cutting capacity for many large pieces. Use the cutting capacity chart to determine total maximum size of cuts that can be made with a new wheel.

MAXIMUM CUTTING CAPACITY

NOTE: Capacity shown on chart assumes no wheel wear and optimum fence position.

Workpiece Shape:

A x B

90º Cutting Angle A = 4.5" A = 4-11/16" 4-1/2" x 5-1/8" A = 5-3/8" (115 mm) (115 mm) (119 mm x 130 mm) (137 mm)

4" x 7-5/8" (102 mm x 194 mm)

3" x 9" (76 mm x 229 mm)

45º Cutting A = 3-13/16" A = 3-13/16" 4-1/2" x 3-13/16" A = 3-13/16" Angle (98 mm) (98 mm) (115 mm x 98 mm) (98 mm)

English

CAUTION: CERTAIN LARGE, CIRCULAR OR IRREGULARLY SHAPED OBJECTS MAY REQUIRE ADDITIONAL HOLDING MEANS IF THEY CANNOT BE HELD SECURELY IN VISE.

CAUTION: DO NOT CUT MAGNESIUM WITH THIS TOOL.

Standard Equipment

1 14" (455 mm) Metal Cutting Abrasive Wheel 1 Wheel Wrench 1 Instruction manual

To Carry (Fig. 1)

Fold down unit to position where you can carry the saw. Push in lock pin (A) to lock arm down.

Unlocking (Fig. 1)

To unlock tool and raise head, depress motor arm slightly and pull lock pin (A) out. Motor arm will then pivot upward.

Spark Deflector Adjustment (Fig. 1)

To best deflect sparks away from surrounding persons and materials, loosen the screw (B), adjust the spark deflector (C) and then retighten screw. Do not allow cordset to come into contact with deflector or sparks as damage to cordset may occur.

Depth Stop (Fig. 1)

Depth stop is set at the factory for a new 14" (455 mm) wheel to prevent wheel from cutting into the supporting surface. To allow more depth of cut, use the 8 mm hex wrench provided (G) to loosen the depth stop bolt (M) and raise bolt to desired height and then turn jam nut (P) clockwise until seated firmly on the casting. Securely tighten the depth stop bolt before use.

CAUTION: When changing to a new wheel, readjust depth stop

to original position to prevent cutting into supporting surface.

FIG. 1

English

FIG. 2

DIAMETER OF WORKPIECE

SPACER

BLOCK

FIG. 3

WIDTH OF SPACER BLOCK

CUT-OFF

END

BLOCK

Trigger Switch (Fig. 1)

To start the tool, depress the trigger switch (N). To turn the tool off, release the trigger switch. Keep hands and material from wheel until it has coasted to a stop.

To prevent unauthorized use of tool, install a standard padlock (not included) into the padlock hole (O) located in the trigger.

Material Clamping and Supporting

• Angles are best clamped and cut with both legs resting against base.

• A spacer block slightly narrower than the workpiece can be used to increase wheel utilization (Fig. 2).

• Long workpieces must be supported by a block so it will be level with top of base (Fig. 3). The cut off end should be free to fall downward to avoid wheel binding.

Vise Operation (Fig. 4)

The vise (F) has a quick-travel feature. To release the vise when it is clamped tightly, turn the crank (H) counterclockwise one or two times to remove clamping pressure. Lift vise lever (I) up. Pull crank assembly out as far as desired. Vise may be pushed forward into work without cranking. Lower vise lever (I) then tighten vise (F) on work by using crank (H).

FIG. 4

FORWARD

Fence Operation (Fig. 5, 6)

WARNING: Turn off and unplug the tool before making any adjustments or removing or installing attachments or accessories. Be sure the trigger switch is in the OFF position.

The fence (E) can be adjusted two ways: to change desired cutting angle and to change spacing between the fence and vise.

FIG. 5

TO CHANGE THE DESIRED CUTTING ANGLE

Use the wrench provided to loosen (do not remove) the two fence bolts (Q). Align the desired angle indicator line with the slot line (R) in the base (D). Securely tighten both fence bolts before use.

For more accurate square cuts, disconnect the power supply, loosen the two fence bolts, push arm down until wheel extends into base. Place a square against the wheel and adjust fence against the square. Securely tighten both fence bolts before use.

When making a miter cut, the vise (F) may not clamp securely, depending on the thickness of the workpiece and the miter angle. Other aids (such as spring, bar or C-clamps) will be necessary to secure the workpiece to the fence when making these cuts.

English

FIG. 6

TO CHANGE SPACING BETWEEN THE FENCE AND VISE

Using the wrench provided, loosen and remove the two fence bolts (Q). Adjust the fence (E) to desired locations. Insert both fence bolts in provided locations. Securely tighten both fence bolts before use.

Removal and Installation of Wheels (Fig. 7, 8)

WARNING: Turn off and unplug the tool before making any adjustments or removing or installing attachments or accessories. Be sure the trigger switch is in the OFF position. Do not make any adjustment while the wheel is in motion. Do not make any adjustment while chop saw is plugged into power supply.

FIG. 7

1. Push in wheel lock lever (L) and rotate wheel (J) by hand until wheel lock lever engages slot in inside flange (S) to lock wheel. Loosen the bolt (T) counterclockwise in the center of the abrasive wheel with the 8 mm hex wrench (G). Bolt has righthand thread.

FIG. 8

2. Remove the bolt (T), washer (U), outside flange (V) and old wheel (J).

3. Make sure flange surfaces are clean and flat. Install the new abrasive wheel by reversing the above steps.

4. Do not overtighten bolt.

WARNING: Check the work surface that the chop saw rests

on when replacing with a new abrasive wheel. It is possible that the wheel may contact ANY ITEMS OR STRUCTURE THAT EXTENDS ABOVE work surface (under the base) when the arm is fully lowered.

Mounting

CAUTION: Tool must be supported on stable, level, non-skid

surface to prevent unexpected movement when operating.

PROCEDURE FOR PERMANENT MOUNTING

1. Mark through the holes in the base (D) and drill two holes, 5/16" (7.94 mm) diameter, through the mounting surface.

2. Use 1/4" (6.35 mm) fasteners to securely mount base to mounting surface.

CRADLE MOUNTING (FIG. 9)

1. Cut two boards approximately 20" long x 2" high x 4" wide (508 x 50.8 x 101.6 mm).

2. Place the chop saw at desired work location.

3. Place boards tightly along side and nail to work surface.

FIG. 9

Operation Tips for More Accurate Cuts

• Allow the wheel to do the cutting. Excessive force will cause the wheel to glaze reducing cutting efficiency and/or to deflect causing inaccurate cuts.

• Properly adjust fence angle.

• Make sure material is laying flat across base.

• Properly clamp material to avoid movement and vibration.

MAINTENANCE Motor Brush Inspection and

Replacement (Fig. 10)

WARNING: Turn off and unplug the tool. Be sure the trigger

switch is in the OFF position.

Brushes should be regularly inspected for wear. To inspect brushes, unscrew the two end cap screws (W) and remove end cap (X). Remove brush cap (Z). Brushes (Y) should slide freely in brush

box. If brushes are worn down to .3" (8 mm) as shown in Figure 10 they should be replaced. To reinstall, push new brush back into brush box. If replacing existing brush, maintain same orientation as when removed. Replace the brush cap (do not overtighten). Replace end cap and two screws. Tighten securely.

FIG. 10

.3"

(8 mm)

Cleaning

Blowing dust and grit out of the main housing by means of an air hose is recommended and may be done as often as dirt is seen collecting in and around the air vents. Always wear proper eye and respiratory protection.

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by authorized service centers or other qualified service organizations, always using identical replacement parts.

NOTE: Unit may be converted to a 3-wire twist lock cord set at an authorized service center.

English

Lubrication

Closed-type, grease-sealed ball bearings are used throughout. These bearings have sufficient lubrication packed in them at the factory to last the life of the chop saw.

English

Accessories

WARNING: The use of any other accessory not recommended

for use with this tool could be hazardous.

Use only high-strength Type 1 organic bonded wheels rated 4100 rpm or higher.

Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center.

Troubleshooting Guide

TROUBLE! TOOL WILL NOT START WHAT’S WRONG? WHAT TO DO…

1. Tool not plugged in. 1. Plug in saw.

2. Fuse blown or circuit breaker tripped. 2. Replace fuse or reset circuit breaker.

3. Cord damaged. 3. Have cord replaced by authorized service center.

4. Brushes worn out. 4. Replace brushes.

TROUBLE! TOOL MAKES UNSATISFACTORY CUTS WHAT’S WRONG? WHAT TO DO…

1. Glazed wheel. 1. Dress the wheel or replace with a new one.

2. Workpiece incorrectly placed or clamped. 2. Firmly clamp and support workpiece.

TROUBLE! BLADE DOES NOT COME UP TO SPEED WHAT’S WRONG? WHAT TO DO…

1. Extension cord too light or too long. 1. Replace with adequate size cord. See chart on page 1.

2. Low voltage. 2. Contact your electric company.

3. Low generator voltage. 3. Check generator output voltage. Reduce number of tools powered by the generator.

Troubleshooting Guide…

TROUBLE! TOOL VIBRATES EXCESSIVELY DURING CUT WHAT’S WRONG? WHAT TO DO…

1. Tool not mounted securely to stand or work bench. 1. Tighten all mounting hardware. See page 8, Procedure for Permanent Mounting.

2. Damaged wheel. 2. Replace wheel.

3. Workpiece not clamped properly. 3. Refer to Material Clamping and Supporting page 6.

TROUBLE! DOES NOT MAKE ACCURATE CUTS WHAT’S WRONG? WHAT TO DO…

1. Fence not adjusted correctly. 1. Check and adjust. See Fence Operation on page 6.

2. Wheel is not square to fence. 2. Check and adjust.

3. Excessive force used to make cut. 3. Reduce cutting force, let the wheel do the work.

4. Work piece moving. 4. Clamp workpiece securely. See Material Clamping and Supporting, page 6. Make sure material is laying flat against the base.

TROUBLE! CANNOT MOVE ARM WHAT’S WRONG? WHAT TO DO…

1. Lock down pin is engaged. 1. Push down slightly on the arm, pull down lock down pin and raise arm.

TROUBLE! MATERIAL MOVES DURING CUT WHAT’S WRONG? WHAT TO DO…

1. Fence slipping or workpiece incorrectly placed or clamped. 1. See Material Clamping and Supporting, page 6.

2. Vise too loose 2. Tighten vise clamping.

3. Excessive cutting force. 3. Reduce cutting force.

English

1010

+ 25 hidden pages