Operation - DeWalt DWE7491 Instruction Manual

English
All D WALT blade body thickness and kerf widths are provided at www.D
e
If a different blade is used and the body thickness and kerf width dimensions are not provided,
use the following procedure to determine the correct riving knife thickness:
1. Measure the body thickness of the blade.
2. Make a shallow cut in scrap material and measure the kerf width.
3. Select the riving knife (Fig. X).
Fig. Y
4. Slide the splitter/riving knife through the shallow cut made in step 2 to confirm the correct
riving knife has been selected. The riving knife should not bind or drag through the cut
(Fig. Y).
iMPORTAnT: If any dragging or binding of the material is encountered as it reaches the riving
knife, turn unit off and disconnect machine from power source. Repeat steps 1–4 to make the
proper riving knife selection before attempting another cut.
Kickback
Kickback is a dangerous condition! It is caused by the workpiece binding against the blade. The
result is that the workpiece can move rapidly in a direction opposite to the feed direction. During
kickback, the workpiece could be thrown back at the operator. It can also drag the operator's
hand back into the blade if the operator's hand is at the rear of the blade. If kickback occurs, turn
the saw OFF and verify the proper functioning of the riving knife, anti-kickback assembly and
blade guard assembly before resuming work.

WARNING: See Safety Instructions for Table Saws and follow all warnings provided
regarding KICKBACK.

OPERATION


WARNING: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or
changing set-ups or when making repairs. An accidental start-up can cause injury.

WARNING: Before using the saw, verify the following each and every time:
• ALWAYS wear proper eye, hearing and respiratory equipment.
• Blade is securely tightened.
• Bevel angle and height lock knobs are tight.
• If ripping, ensure fence lock lever is tight and fence is parallel to the blade.
• If crosscutting, miter gauge knob is tight.
• The blade guard assembly is properly attached and the anti-kickback assembly
is functioning.
• ALWAYS inspect the blade guard assembly and riving knife for proper alignment,
operation and clearance with saw blade.
ALWAYS make sure both clear side guards are in the down position in contact with the
•
table before operating.

WARNING: To reduce the risk of serious personal injury, have push stick ready to use before
starting cut.
Failure to adhere to these common safety rules can greatly increase the likelihood of injury.

WARNING: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or
changing set-ups or when making repairs. An accidental start-up can cause injury.

WARNING: Before connecting the table saw to the power source or operating the saw,
always inspect the blade guard assembly and riving knife for proper operation alignment
and clearance with saw blade. Personal injury may result.

WARNING: Ripping or crosscutting may cause saw to tip over while operating. Make sure
saw is securely mounted to a stable surface.

WARNING: Never use the fence and miter gauge together. This may cause a kickback
condition and injure the operator.

CAUTION: If this saw makes an unfamiliar noise or if it vibrates excessively, cease operating
immediately, turn unit off and disconnect from power source until the problem has been
located and corrected. Contact a D WALT factory service center, a D
e
center or other qualified service personnel if the problem cannot be found.

CAUTION: The proper throat plate must be in place at all times to reduce the risk of a thrown
workpiece and possible injury.
8
WALT.com. There are two basic types of cutting with table saws: ripping and crosscutting. Regardless of
e
material, man made or natural wood, the distinction between ripping and crosscutting is as
follows: Ripping is cutting to a different width (usually with the grain) and crosscutting describes
cutting material across the shorter dimension (usually against the grain).

WARNING: When ripping, always use the fence to provide a guide for the material and
blade guard assembly to protect against a kickback situation.

WARNING: Never perform any cutting operation free hand. Never perform plunge cutting.

CAUTION: When crosscutting, always use the miter gauge.
On-Off Switch (Fig. Z)

WARNING: To reduce the risk of injury, be sure the switch is in the OFF position before
plugging machine in.
Push green button
Lock Off Feature Instructions
A cover above the switch folds down for insertion of a padlock to lock the saw off. A
padlock with a maximum diameter of 1/4" (6.35 mm) and minimum clearance of 3"
(76.2 mm) is recommended.
Guard Operating Feature (Fig. AA)

WARNING: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or
changing set-ups or when making repairs. An accidental start-up can cause injury.
1. The clear side guard(S) will lock in place when in the raised position.
2. This feature increases visability when measuring the blade to fence distance.
3. Push down on guard(S) and they will release to the operating position.
nOTE: Pull on the anti-kickback assembly to ensure it is locked in place. AlWAYs make sure
both guards are in the down position in contact with the table before operating.
Fig. AA
Rip Fence Operation (Fig. BB–EE)
Rail Lock Lever (Fig. BB)
The rail lock lever
rail lever, push it down and toward the rear of the saw. To unlock, pull it up and toward the
front of the saw.
nOTE: When ripping, always lock the rail lock lever.
Work Support Extension/Narrow Ripping Fence
The table saw is equipped with a narrow ripping fence that also supports work that extends
beyond the saw table.
To use the narrow ripping fence in the work support position, rotate it from its stored position as
shown in Figure BB, and slide the pins into the lower sets of slots
To use the narrow ripping fence in the narrow ripping position, snap the pins into the upper sets
of slots 56 on both ends of the fence.
This feature will allow 2" (51 mm) of extra clearance to the blade. Refer to Figure CC. If more
clearance is necessary, follow directions for making an auxiliary fence under narrow Rip
Auxiliary Fence in the Storage section.
nOTE: When not in use, the narrow ripping fence should be placed in its stored position.
nOTE: When using the narrow ripping fence, subtract 2" (51mm) from the indicated rip
WALT authorized service
e
scale reading.
8 in to turn this saw on and push down the red paddle to turn this saw off.
Fig. Z
RAISED POSITION
5 locks the fence in place preventing movement during cutting. To lock the
8
OPERATING POSITION
55 on both ends of the fence.