Operation - DeWalt DW310 Instruction Manual

SAVE THESE INSTRUCTIONS FOR FUTURE USE
Motor
Be sure your power supply agrees with the nameplate marking. Voltage decrease of more than
10% will cause loss of power and overheating. D
not operate, check power supply.
CAUTION: Use only on AC power supply (NOT DC).
COMPONENTS (Fig. 1, 2)
A. Trigger switch
B. Variable speed selector wheel (Fig. 2)
C. Shoe release lever
D. Adjustable shoe
E. Blade action selector (Fig. 2)
TRIGGER SWITCH
The variable speed trigger switch (A) will give you added versatility. The further the trigger is
depressed the higher the speed of the saw. To turn the tool OFF, release the trigger.
NOTE: This tool has no provision to lock the switch in the ON position, and should never be locked
ON by any other means.
CAUTION: Use of very slow speed is recommended only for begin ning a cut. Prolonged use at
very slow speed may damage your saw.
VARIABLE SPEED SWITCH AND SELECTOR WHEEL
Both saws are equipped with a variable speed control (0 to 2600 SPM). As the trigger switch is
depressed, the speed of the saw blade increases.
The DW311 has a variable speed selector wheel (B) to control the speed of the tool. To select a
slow speed for operating your saw, rotate the wheel to a low number on the dial. To select a higher
speed, rotate the wheel to a higher number.
The lower speeds are recommended for most metal cutting, while the higher speeds are
recommended for wood. A few practice cuts on scrap material at various speeds will aid you in
choosing the best speed for obtraining the desired results for your application.
Dual Blade Motion (DW311 Only) (Fig. 2)
The DW311 has dual blade motion: straight reciprocating motion or orbital motion.
Straight reciprocating motion is used for all metal cutting operations and for wood cutting
applications where finish is more important than speed. To set the saw for straight reciprocating
motion, turn the blade action selector (E) 45˚ clockwise to align the mark (I) with the arrow on the
tool (J), as shown.
Orbital motion is used for fast cutting of wood. To set the saw for orbital action, turn the blade
action selector 45˚ counterclockwise to align the mark (K) with the arrow on the tool (J), as shown.
Adjustable Shoe (Fig. 1, 3)
CAUTION: Turn off and unplug the tool before making any adjustments or removing or
installing attachments or accessories.
Push the shoe release lever (C) downward and slide the shoe (D) out to the desired setting. Rotate
the lever to lock shoe into position.
CAUTION: Cut hazard. To prevent loss of control, never use tool without shoe.
CAUTION: Risk of personal injury and property damage. Ensure the shoe is locked into position
before using tool.
ASSEMBLY
WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Blade Installation and Removal (Fig. 4, 5)
Different blade lengths are available. Use the appropriate blade for the application. The
blade should be longer than 3-1/2" and should extend past the shoe and the thickness of the
workpiece during the cut. Select the blade best suitable for the material to be cut and use the
shortest blade suitable for the thickness of the material. Do not use jigsaw blades with this tool.
WARNING: Cut hazard. Blade breakage may occur if the blade does not extend past the shoe
and the workpiece during the cut (Fig. 4). Increased risk of personal injury, as well as damage to
the shoe and workpiece may result.
WARNING: Cut hazard. Turn off and unplug the tool before making any adjustments or removing
or installing attachments or accessories.
TO INSTALL BLADE INTO SAW (FIG. 4, 5)
1. Point tool away from body.
2. Rotate blade clamp collar (F) to release position.
3. Insert blade shank from the front.
4. Rotate blade clamp collar to lock blade into position.
NOTE: Blade can be installed upside-down to assist in flush-to cutting, see Figure 7.
TO REMOVE BLADE FROM SAW
WARNING: Burn hazard. Do not touch the the blade immediately after use. Contact with the
blade may result in personal injury.
1. Rotate blade clamp collar (F) to release position.
2. Remove blade.

OPERATION

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
WARNING: Always wear eye protection while operating this or any other power tool.
WARNING: Burn hazard. Do not touch the the blade immediately after use. Contact with the
blade may result in personal injury.
Before you begin work, ensure the material to be cut is rigid. Small workpieces should be securely
clamped to the work table.
PROPER HAND POSITION
Grasp the underside of the hand grip (G) with one hand and the rear handle (H) with the other hand.
Cutting (Fig. 6)
WARNING: Always wear eye protection while operating this power tool.
WARNING: Cut hazard. Exercise extra caution when cutting towards operator. Always hold saw
firmly with both hands while cutting.
Before cutting any type of material, be sure it is firmly anchored or clamped to prevent slipping.
Place blade lightly against work to be cut, depress the trigger switch and allow it to obtain
maximum speed before applying pressure. Whenever possible, the saw shoe must be held firmly
against the material being cut. This will prevent the saw from jumping or vibrating and minimize
blade breakage. Any cut which puts pressure on the blade, such as angle or scroll cuts, increase
potential for vibration, kickback and blade breakage.
NOTE: The blade cuts on the down stroke leaving the cleanest edge on the underside of the
material.
WARNING: Shock hazard. Use extra caution when cutting overhead and pay particular attention
to overhead wires which may be hidden from view.
WARNING: Use extra caution when cutting overhead and anticipate the path of falling
branches and debris ahead of time.
WARNING: Inspect work site for hidden gas pipes, water pipes, or electrical wires before
making blind or plunge cuts. Failure to do so may result in explosion, property damage, electric
shock, and/or serious personal injury.
FLUSH-TO CUTTING (FIG. 7)
The compact design of the saw motor housing and spindle housing permits extremely close cutting
to floors, corners and other difficult areas. The blade can be installed upside-down to assist in
flush-to cutting
POCKET/PLUNGE CUTTING – WOOD ONLY (FIG. 8)
WARNING: Shock hazard. Exercise extreme caution when blind cutting to ensure that there are
no foreign objects such as electrical wire, conduit, plumbing pipes, etc., that may come in contact
with the blade.
NOTE: DO NOT attempt to pocket/plunge cut metal.
WALT tools are factory tested; if this tool does
e
F. Blade clamp collar
G. Hand grip
H. Rear handle
FIG. 1
G
F
DW310
C
D
FIG. 2
DW311
G
D
C
FIG. 3
FIG. 4
F
FIG. 5
FIG. 8
FIG. 7
FIG. 9
The initial step in pocket/plunge cutting is to measure the surface area to be cut and mark
clearly with a pencil, chalk or scriber. Use the appropriate blade for the application. The blade should
be longer than 3-1/2" (88.9mm) and should extend past the shoe and the thickness of the workpiece
during the cut. Insert blade in blade clamp.
Next, tip the saw backward until the back edge of the shoe is resting on the work surface and the
blade clears the work surface. Depress trigger switch to turn motor on, always permitting blade to
attain maximum speed. Grip saw steadily and begin a slow, deliberate upward swing with the handle
of the saw. Blade will begin to feed into material. Always be sure blade is completely through material
before continuing with pocket/plunge cut.
NOTE: In areas where blade visibility is limited, use the edge of the saw shoe as a guide. Lines for
any given cut should be extended beyond edge of cut to be made.
METAL CUTTING (FIG. 9)
This unit has different metal cutting capacities depending upon type of blade used and the metal
to be cut. Use a finer blade for ferrous metals and a coarse blade for non-ferrous materials. In
thin gauge sheet metals it is best to clamp wood to both sides of sheet. This will insure a clean
cut without excess vibration or tearing of metal. Always remember not to force cutting blade as
this reduces blade life and causes costly blade breakage. Start the cut on the surface where the
greatest number of teeth will contact the workpiece.
STRAIGHT
RECIP. MOTION
ORBITAL ACTION
MOUVEMENT
ALTERNATIF VERTICAL FONCTIONNEMENT
ORBITAL
MOVIMIENTO
ALTERNATIVO RECTO ACCIÓN ORBITAL
J
I
E
B
FIG. 6
STARTING POSITION FOR POCKET CUTTING
POSITION DE DÉPART POUR LA COUPE EN POCHE
POSICIÓN DE ARRANQUE PARA CORTES INTERNOS
ROCK TOOL UP TO NORMAL CUTTING POSITION
AFTER BLADE HAS CUT THROUGH MATERIAL.
BALANCER L'OUTIL JUSQU'À SA POSITION NORMALE DE
COUPE APRÈS LA PÉNÉTRATION COMPLÈTE
DE LA LAME DANS LE MATÉRIAU.
GIRE LA HERRAMIENTA HASTA LA POSICIÓN DE
CORTE NORMAL DESPUÉS DE QUE LA HOJA HAYA
CORTADO EL MATERIAL.
H
A
K
H
A