DeWalt DW621 Instruction Manual page 26

• Use sharp cutters. Dull cutters may cause the router to swerve or
stall under pressure.
• Keep hands away from cutting area above and below the
base. Never reach under the workpiece for any reason. Keep
the router base firmly in contact with the workpiece when cutting.
• Never touch the bit immediately after use. It may be extremely
hot.
• Be sure that the motor has stopped completely before you lay
the router down. If the bit is still spinning when the tool is laid down,
it could cause injury or damage.
• Be sure that the router bit is clear of the workpiece before
starting the motor. If the bit is in contact with the workpiece when
the motor starts, it could make the router jump, causing damage or
injury.
• Always follow the bit manufacturer's speed recommendations
as some bit designs require specific speeds for safety or
performance. If you are unsure of the proper speed or are
experiencing any type of problem, contact the bit manufacturer.
• Do not use router bits with a diameter in excess of 2-3/8" (60
mm) in this tool.
• Do not hand-hold the router in an upside-down or horizontal
position. The motor can separate from the base if not properly
attached according to the instructions.
• Before starting the motor, check to see that the cord will not
snag or impede the routing operation.
• Before starting the motor, clear the work area of all foreign
objects.
• Keep cutting pressure constant. Do not overload motor.
• Provide clearance under workpiece for bit when through-
cutting.
• Do not press spindle lock button while the motor is running.
Doing so can damage the spindle lock.
• Always make sure the work surface is free from nails and
other foreign objects. Cutting into a nail can cause the bit and the
tool to jump.
• Air vents often cover moving parts and should be avoided.
Loose clothes, jewelry or long hair can be caught in moving parts.
• An extension cord must have adequate wire size for safety.
An undersized cord will cause a drop in line voltage resulting in loss
of power and overheating. When using more than one extension to
make up the total length, be sure each individual extension contains
at least the minimum wire size. The following table shows the correct
size to use depending on cord length and nameplate ampere rating. If
in doubt, use the next heavier gauge. The smaller the gauge number,
the heavier the cord.
Voltage (Volts) Total length of cord in meters (m)
120–127V 0–7
220–240V 0–15
Rated Ampere Minimal cross-sectional area of the
range
0–6A 1.0
6–10A 1.0
10–12A 1.5
12–16A 2.5
WARNING: Some dust created by power sanding, sawing, grinding,
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.
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
24
7–15 15–30 30–50
15–30 30–60 60–100
cord in meters (mm 2 )
1.5 1.5 2.5
1.5 2.5 4.0
1.5 2.5 4.0
4.0 Not Recommended