DeWalt DW893, DW893-220 Instruction Manual

DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 (DEC03) Form No. 384447-00 DW893, DW893-220

Copyright © 1997, 2003

The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the “D” shaped air intake grill; the array
of pyramids on the handgrip; the kit box configuration; and the array of lozenge-shaped humps on the surface of the tool.

INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES

DW893/DW893-220
12 Gauge Shear
Cisaille de calibre 12
Cizalla calibre 12

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

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

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

EWALT TOOL, CALL US TOLL FREE AT :

1-800-4-D

EWALT (1-800-433-9258).

PADDLE
SWITCH

SWITCH LOCK

BUTTON

CURL

DEFLECTOR

BLADES

SHOE

Important Safety Instructions

WARNING: When using electric tools, basic safety precautions

should always be followed to reduce risk of fire, electric shock, and
personal injury, including the following:

READ ALL INSTRUCTIONS

Double Insulation

Double insulated tools are constructed throughout with two separate
layers of electrical insulation or one double thickness of insulation
between you and the tool’s electrical system. Tools built with this insu­lation system are not intended to be grounded. As a result, your tool is
equipped with a two prong plug which permits you to use extension
cords without concern for maintaining a ground connection.
NOTE: Double insulation does not take the place of normal safety
precautions when operating this tool. The insulation system is for
added protection against injury resulting from a possible electrical
insulation failure within the tool.

CAUTION: When servicing all tools, USE IDENTICAL REPLACE-

MENT PARTS. Repair or replace damaged cords.

Polarized Plugs

Polarized plugs (one blade is wider than the other) are used on equip­ment to reduce the risk of electric shock. When provided, this plug will
fit into a polarized outlet only one way. If the plug does not fit fully into
the outlet, reverse the plug. If it still does not fit, contact a qualified elec­trician to install the proper outlet. Do not change the plug in any way.

Safety Instructions for All Tools

• KEEP WORK AREA CLEAN. Cluttered areas and benches invite

injuries.

• CONSIDER WORK AREA ENVIRONMENT. Don’t expose power

tools to rain. Don’t use power tools in damp or wet locations. Keep
work area well lit.

• GUARD AGAINST ELECTRIC SHOCK. Prevent body contact

with grounded surfaces; for example, pipes, radiators, ranges, and
refrigerator enclosures.

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• KEEP CHILDREN AWAY. All visitors should be kept away from

work area. Do not let visitors contact tool or extension cord.

• STORE IDLE TOOLS. When not in use, tools should be stored in

dry, and high or locked-up place — out of reach of children.

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

rate for which it was intended.

• USE RIGHT TOOL. Don’t force small tool or attachment to do the

job of a heavy duty tool. Don’t use tool for purpose not intended; for
example, don’t use circular saw for cutting tree limbs or logs.

• DRESS PROPERLY. Do not wear loose clothing or jewelry. They

can be caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors. Wear protec­tive hair covering to contain long hair. Air vents often cover mov­ing parts and should also be avoided.

• USE SAFETY GLASSES. Also use face or dustmask if operation

is dusty.

• DON’T ABUSE CORD. Never carry tool by cord or yank it to dis-

connect from receptacle. Keep cord from heat, oil, and sharp
edges.

• 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

better and safe performance. Follow instructions for lubricating
and changing accessories. Inspect tool cords periodically and if
damaged have repaired by authorized service facility. Inspect
extension cords periodically and replace if damaged. Keep han­dles dry, clean, and free from oil and grease.

• DISCONNECT OR LOCK OFF TOOLS when not in use, before

servicing, and when changing accessories, such as blades, bits,
cutters.

• REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of

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

• AVOID UNINTENTIONAL STARTING. Don’t carry plugged-in

tool with finger on the switch. Be sure the switch is off when plug­ging in.

• EXTENSION CORDS. 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. The 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.

Minimum Gage for Cord Sets

Volts Total Length of Cord in Feet

120V 0-25 26-50 51-100 101-150
240V 0-50 51-100 101-200 201-300

Ampere Rating

More Not more AWG
Than Than
0 - 6 18 16 16 14
6- 10 18 16 14 12
10- 12 16 16 14 12
12- 16 14 12 Not Recommended

• OUTDOOR USE EXTENSION CORDS. When tool is used out-

doors, use only extension cords intended for use outdoors and so
marked.

• STAY ALERT. Watch what you are doing. Use common sense.

Do not operate tool when you are tired.

• 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 defective
should be properly repaired or replaced by an authorized service

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center unless otherwise indicated elsewhere in this instruction
manual. Have defective switches replaced by authorized service
center. Do not use tool if switch does not turn it on and off.

• DO NOT OPERATE portable electric tools near flammable liquids

or in gaseous or explosive atmospheres. Motors in these tools nor­mally spark, and the sparks might ignite fumes.

•When driving or drilling into walls, floors or wherever live electrical

wires may be encountered, DO NOT TOUCH ANY METAL
PARTS OF THE TOOL! Hold the tool only by the insulated grasp­ing surfaces to prevent electric shock if you drive into a live wire.

SAVE THESE INSTRUCTIONS

Operating Rules for Shears

• Always wear safety glasses and protective gloves.

• Always use tool with curl deflector.

•Wear safety shoes to protect your feet from sharp metal debris on
floor.

• Always start tool before engaging material to be cut.

• Don’t cut material thicker than rated capacity. Remember, materi­al thickness increases as gauge number decreases. (14 gauge is
thicker than 16 gauge.)

• Keep all screws tight. Periodically check them for loosening.

• If possible, cut material so scrap curl is to the right. This direction
will move curl down and out of the way.

• Unplug tool before making any adjustments.

• Do not put anything into a motor housing opening.

• Keep tool clean. Blow off any metal debris and dirt from tool.

• Use shears upright. If tool is upside down, metal curl may turn
toward you.

• Firmly secure the piece of metal to be cut to prevent movement
during cutting.

CAUTION: Wear appropriate personal hearing protection dur-

ing use. Under some conditions and duration of use, noise from this

product may contribute to hearing loss.

WARNING: Some dust created by power sanding, sawing, grind-

ing, 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, saw-

ing, 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.

• 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 ........alternating current

....direct current

n

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

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

........earthing terminal ..............reciprocation per minute

........safety alert symbol

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• Cut material so that scrap is to the right. This cutting direction will
move curl down and out of the way.

• When cutting a radius, turn the shear counterclockwise for easier
maneuvering.

• Best cutting (least effort) can be achieved when back of tool is
lowered 5˚ - 10˚.

Lubrication

DEWALT tools are properly lubricated at the factory and are ready for
use. Tools should be relubricated regularly every sixty days to six
months, depending on usage. (Tools used constantly on production
or heavy-duty jobs and tools exposed to heat may require more fre­quent lubrication.) This lubrication should only be attempted by
trained power tool repair persons such as those at D

EWALT autho-

rized service centers or in other qualified service organizations.

Paddle Switch

To start the tool, depress the paddle switch. To turn the tool off,
release the paddle. The switch can be locked on be engaging the
lock button located near the rear of the tool while holding the paddle
depressed. Always be sure that the tool is not locked on before plug­ging it in. To turn the tool off when it is locked on, squeeze and
release the paddle once.

Operation

TURN OFF TOOL AND DISCONNECT FROM POWER SUPPLY
BEFORE MAKING ANY ADJUSTMENTS. Always wear safety glass­es and protective gloves. Never use shear without the curl deflector.
Most blade wear (dulling of edges) is on the back edge. Symptoms of
blade wear include: difficulty in cutting material, ragged cut edge,
heavier burr, and increased vibration while cutting.
Your shear is equipped with two identical blades with four cutting
edges on each blade. The moving blade wears faster than the sta­tionary blade. However, it is advisable to rotate both blades to fresh
edges at the same time.

TO ROTATE THE BLADES

Remove the two blade clamp screws. Rotate each blade to a fresh
edge. Replace screws exactly as they were removed. Note that the
stationary blade clamp screw is longer and will cause damage to the
tool if it is used to secure the moving blade. (See Figure 2)
Stationary blade must be snug against the gap adjusting screw.
Check and adjust blade gap if necessary. (See following section on
adjusting the blade gap.) Tighten all screws.

Cutting Tips

• Proper blade gap is important.

• Dull blades increase user pressure on tool to cut and could result
in damage to tool.

• Always start tool before engaging material.

• Keep metal surface dry. Otherwise, shear will tend to rebound
(slide back) at each cutting stroke.

CAM SHAFT

STATIONARY

BLADE

GAP

ADJUSTING

SCREW

STATIONARY

BLADE CLAMP

SCREW

MOVING

BLADE

BLADE

GAP

BLADE
CLAMP

SCREW

HEAD

STATIONARY

BLADE

GAP

ADJUSTING

SCREW

STATIONARY

BLADE CLAMP

SCREW

BLADE

GAP

BLADE
CLAMP

SCREW

MOVING

BLADE

FIGURE 2