DeWalt DW871 User manual

INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
DW871
14" (355 mm) Heavy Duty Chop Saw
Scie fendeuse de 355 mm (14 po) et de service intensif
Cortadora de metales de 355 mm (14")
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.
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IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS
OR ANY DEWALT TOOL, CALL US TOLL FREE AT:
1-800-4-DEWALT (1-800-433-9258)
TRIGGER SWITCH
FENCE
VISE LEVER
CRANK
WHEEL
GUARD
WHEEL
VISE
CARRY
HANDLE
LOCK
DOWN PIN
WHEEL LOCK LEVER
BASE HEX
WRENCH
WARNING: FOR YOUR OWN SAFETY READ INSTRUCTION
MANUAL BEFORE OPERATING CHOP SAW.
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.
•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.
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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 American Wire Gage
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
• 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.
•ALWAYS USE SAFETY GLASSES. 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 when practical.
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.
•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.
•DIRECTION OF FEED. Feed work into a blade or cutter against the
direction of rotation of the blade or cutter only.
•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, this equipmenthasa
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
electricianto installtheproper outlet.DO NOT CHANGE THE PLUG IN
ANY WAY.
Additional Safety Rules for Chop Saw
• Always wear safety goggles or other eye protection when using this tool.
• Before using, inspect each cutting wheel for cracks or flaws. If a crack
or flaw is evident—discard the wheel! The wheel should also be
inspected whenever you think the tool may have been dropped.
• When starting the tool (with a new or replacement wheel installed)
place the tool in a well protected area. 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.
• Clean your chop saw periodically following the procedure in this manual.
• Do not remove wheel guard.
• Always use the vise or special fixturing to clamp work.
• 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.
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•NEVER USE A CIRCULAR SAW BLADE IN THIS CHOP SAW. DO
NOT USE TOOTHED BLADES.
•DO NOT OPERATE THIS TOOL NEAR FLAMMABLE LIQUIDS,
GASES OR DUST. Sparks from cutting or motor may ignite dust
and fumes.
Power Supply
Be sure your power supply agrees with the nameplate marking. 120
volts, “60 Hz”means alternating current (normal 120 volt, 60 Hz
house current).
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.
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.
Maximum Cutting Capacity
NOTE: CAPACITY SHOWN ON CHART ASSUMES NO WHEEL WEAR
AND OPTIMUM FENCE POSITION.
LOCK PIN
FIG. 1
LOCK PIN
SAVE THESE INSTRUCTIONS
Standard Equipment
1 14”Metal Cutting Abrasive Wheel. Use only high strength Type 1
organic bonded wheels rated 4,100 rpm or higher.(Aluminum
Oxide)
1 Wheel Wrench
To Carry
Fold down unit to position where you can carry the saw. Push in lock
pin (Figure 1) to lock arm down.
Unlocking
To unlock tool and raise head, depress motor arm slightly and pull
lock pin out. Motor arm will then pivot upward (see Figure 2).
Material Clamping and Supporting
• Angles are best clamped and cut with both legs resting against
base
• A spacer block slightly narrower than the work space
(see Figure 3) can be used to increase wheel utilization.
• Long workpieces must be supported by a block so it will be
level with top of base (see Figure 4). The cut off end should be free
FIG. 2
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VISE
LEVER
CRANK
Spark Deflector Adjustment
To best deflect sparks away from surrounding persons and materials, loosen
the screw, adjust the spark deflector and then retighten screw (see Figure 5).
Vise Operation
Vise has a quick travel feature. To release the vise when it is clamped
tightly, turn the crank counterclockwise one or two times to remove
clamping pressure. Lift vise lever up. Pull crank assembly out as far
as desired. Vise may be shoved into work without cranking. Lower
vise lever then tighten vise on work by using crank (see Figure 6).
BLOCK
VISE
DIAMETER OF
WORK PIECE FENCE
SPACER
BLOCK
WIDTH OF
SPACER BLOCK
FIG. 3
FIG. 4
Fence Operation
Fence requires no wrenches to adjust. The quick release clamp lever
unlocks and locks the fence. When the lever is rotated fully forward,
the fence is unlocked. The fence can then be freely moved forward,
backward or rotated to allow for the best cutting position for a new
wheel and as the wheel wears.
Rotating the lever fully to the rear locks the fence in position selected.
If the bottom leg of the lever is not horizontal (parallel to the base), the
fence is not locked. Lever will only lock fence when there is strong
resistance to moving it to rear. If resistance is light, adjust clamping
force by tightening slightly the two bolts holding the fence to the base.
Test by reclamping and attempt to move fence (see Figure 6).
FIG. 6
VISE
FENCE
FENCE
BOLTS
CLAMP LEVER
FORWARD
CUT OFF
END
FIG. 5
SCREW
SPARK
DEFLECTOR
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Fence Angle Adjustment
Angle adjustment indicator is part of fence clamping system. Align
desired angle indicator line with edge of slot in base (see Figure 7).
For a more accurate square cut (Figure 7), disconnect power supply,
unlock fence, push arm down until wheel extends into base, place a
square against wheel, adjust fence against square, then lock fence
into position.
Switch
To start the tool, depress the trigger switch shown in Figure 8. To turn
the tool off, release the trigger switch. Keep hands and material from
wheel until it has coasted to a stop.
TRIGGER SWITCH
FIG. 8
SPINDLE SHAFT
FLANGE,
INSIDE
FLAT
WASHER
FLANGE,
OUTSIDE
WHEEL FIG. 10
M10
BOLT
INTERNAL
THREAD
Removal and Installation of Wheels
1. Be sure tool is disconnected from power supply.
2. Push in wheel lock lever (Figure 9) and rotate wheel by hand until
wheel lock lever engages slot in inside flange to lock wheel.
Loosen the bolt counterclockwise in the center of the abrasive
wheel with the 8 mm hex wrench found in the holder in the base.
Bolt has right hand thread.
3. Remove the bolt, washer, outside flange, and old wheel (Fig. 10).
4. Install the new abrasive wheel by reversing the above steps.
5. Do not over tighten bolt.
DO NOT MAKE ANY ADJUSTMENT WHILE THE WHEEL IS IN MOTION.
DO NOT MAKE ANY ADJUSTMENT WHILE CHOP SAW IS PLUGGED
INTO POWER SUPPLY.
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.
WHEEL
FIG. 7
SQUARE
FIG. 9
WHEEL LOCK LEVER
ANGLE
ADJUSTMENT
INDICATOR
SLOT EDGE
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NAIL
FIG. 12
Mounting
PROCEDURE FOR PERMANENT MOUNTING
1. Drill four holes 5/16" through the work surface. (Figure 11)
2. Insert 1/4-20 screws down through the holes in the base and
through holes in mounting surface. The approximant length of
the screws should be the thickness of the mounting surface plus
4 inches.
CRADLE MOUNTING
1. Cut two boards approximately 20" long x 2" high x 4" wide.
2. Place chop saw at desired work location.
3. Place boards tightly along side, and nail to work surface,
(Figure 12).
17-3/8"
(441 MM)
10-1/8"
(257 MM)
FIG. 11
Motor Brush Inspection and
Replacement
Be sure tool is unplugged before inspecting brushes. Brushes should
be regularly inspected for wear. To inspect brushes, unscrew the
two end cap screws and remove end cap (see Figure 13). To remove
each brush, first unplug the shunt wire terminal connection. Then
carefully back the brush spring out of the brush box and remove
brush (see Figure 13). Brushes should slide freely in brush box. If
brushes are worn down to .3”(see Figure 14) they should be
replaced. To reinstall each brush carefully back the spring out of the
brush box, insert the brush and return the spring making sure it is
pressing on the brush and not touching the brush box. Then replace
the end cap and two screws.
.3"
(8 MM)
BRUSH
FIG. 14 FIG. 13
SCREWS
END CAP
BRUSH
SPRING
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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.
• Adjust fence angle. (Figure 7)
• Make sure material is laying flat across base.
• Properly clamp material to avoid movement and vibration.
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.
Accessories
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,
contact:
DeWALT Industrial Tool Company
626 Hanover Pike, P.O. Box 158
Hampstead, MD. 21074-0158
CAUTION: The use of any other accessory not recommended
for use with this tool could be hazardous.
Important
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. ALWAYS WEAR SAFETY GLASSES. ALWAYS
SECURE WORK IN VISE. DISCONNECT TOOL FROM POWER
SUPPLY BEFORE CHANGING WHEEL.
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.
Gears should be relubricated every 60 to 90 days, depending upon
use. This lubrication should only be attempted by experienced power
tool repair persons like the mechanics at DEWALT service centers. The
gear case should be wiped clean and 1/2 oz. (16 grams) of DEWALT
Lubricant Part No. 790206 (6 oz. tube) placed in the gear case.
Full Warranty
DEWALT heavy duty industrial tools are warranted for one year from
date of purchase. We will repair, without charge, any defects due to
faulty materials or workmanship. For warranty repair information, call
1-800-4-DEWALT. 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.
In addition to the warranty, DEWALT tools are covered by our:
30 DAY NO RISK SATISFACTION GUARANTEE
If you are not completely satisfied with the performance of your
DEWALT heavy duty industrial tool, simply return it to the participating
seller within 30 days for a full refund. Please return the complete unit,
transportation prepaid. Proof of purchase may be required.
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