Intended Use; Assembly And Adjustments - DeWalt DWE490 Instruction Manual

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
if this tool does not operate, check power supply.
COMPONENTS (FIG. A)

WARNING: Never modify the power tool or any part
of it. Damage or personal injury could result.
Refer to Figure A at the beginning of this manual for a
complete list of components.

INTENDED USE

Your angle grinder has been designed for professional
grinding and cutting applications.
Do NoT use under wet conditions or in presence of
flammable liquids or gases.
This heavy­duty angle grinder is a professional power tool.
Do NoT let children come into contact with the tool.
Supervision is required when inexperienced operators use
this tool.

ASSEMBLY AND ADJUSTMENTS


WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.
An accidental start-up can cause injury.
Attaching the Side Handle (Fig. B)
To install the side handle, thread the handle into one of the
two positions and tighten securely by turning clockwise.
Fig. B
Guards

CAUTION: Guards must be used with all grinding
wheels, cutting wheels, sanding flap discs,
wire brushes, and wire wheels. The tool may
be used without a guard only when sanding with
conventional sanding discs.

CAUTION: When using a grinding wheel with a type
27, 28 or 29 guard, be sure that the bottom surface of
the grinding wheel is inside the the guard lip.
Mounting and Removing Guard (Fig. C)
1. Align the lugs with slots on the gear case cover. Position
the guard facing backward, as shown.
2. Push the guard down until the guard lug engages and
rotates freely in the groove on the gear case hub.
WALT tools are factory tested;
e
3. Rotate guard into desired working position. The guard
body should be positioned between the spindle and the
operator to provide maximum operator protection.
4. Secure the guard on the gear case cover. You should be
unable to rotate the guard by hand when the latch is
in closed position. Do not operate grinder with a loose
guard or clamp lever in open position.
5. To remove the guard, follow steps 1–4 of these
instructions in reverse.
Fig. C
NoTE: The guard is preadjusted to the diameter of the gear
case hub at the factory. If, after a period of time, the guard
becomes loose, tighten the adjusting screw.
Flaring Cup Wheel Guard

WARNING: The flaring cup wheel guard is not
included with this tool. Flaring cup wheels require
proper flanges and guards. 4" (102 mm) flaring cup
wheel guard and 6" (152 mm) flaring cup wheel guard
are available as accessories and include proper flange.
Failure to use the proper flange and guard can result
in injury resulting from wheel breakage and wheel
contact.
Flanges and Wheels
The grinder is equipped with a mount that should be used
with all wheel types with the exception of flaring cup
wheels. See the Accessories Chart for more information.The
mount enabling easy wheel instal lation and removal.
Spindle Lock (Fig. D)
The spindle lock is provided to prevent the spindle from
2
rotating when installing or removing wheels. Operate the
spindle lock only when the tool is turned off, unplugged
from the power supply, and has come to a complete stop.
NOTICE: To reduce the risk of damage to the tool, do
not engage the spindle lock while the tool is operating.
Damage to the tool will result and attached accessory
may spin off possibly resulting in injury.
To engage the lock, depress the spindle lock button
and rotate the spindle until you are unable to rotate the
spindle further.
ENglIsh
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