Prior To Operation; Lock-On Button - DeWalt DWE402 Instruction Manual

English
2. Thread the wheel on the spindle by hand.
3. Depress spindle lock button
hub of the wire wheel or brush to tighten the wheel.
4. To remove the wheel, reverse the above procedure.
NOTICE: To reduce the risk of damage to the tool,
properly seat the wheel hub before turning the tool on.

Prior to Operation

• Install the guard and appropriate disc or wheel. Do not
use excessively worn discs or wheels.
• Be sure the backing and threaded locking flange are
mounted correctly. Follow the instructions given in the
Grinding and Cutting Accessory Chart.
• Make sure the disc or wheel rotates in the direction of
the arrows on the accessory and the tool.
• Do not use a damaged accessory. Before each use
inspect the accessory such as abrasive wheels for chips
and cracks, backing pad for cracks, tear or excess wear,
wire brush for loose or cracked wires. If power tool or
accessory is dropped, inspect for damage or install an
undamaged accessory. After inspecting and installing
an accessory, position yourself and bystanders away
from the plane of the rotating accessory and run the
power tool at maximum no-load speed for one minute.
Damaged accessories will normally break apart during
this test time.
OPERATION

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.
Proper Hand Position (Fig. H)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
sudden reaction.
Proper hand position requires one hand on the side
handle , with the other hand on the body of the tool, as
5
shown in Figure H.
Fig. H
Paddle Switch (Fig. A)

CAUTION: Hold the side handle and body of the tool
firmly to maintain control of the tool at start up and
during use and until the wheel or accessory stops
10
2 and use a wrench on the
5
rotating. Make sure the wheel has come to a complete
stop be fore laying the tool down.

CAUTION: Before connecting the tool to a power
source depress and release the paddle switch
[DWE402: without depressing the lock-on button
to ensure that the switch is off. Depress and release
the paddle switch as described above after any
interruption in power supply to the tool, such as the
activation of a ground fault interrupter, throwing of
a circuit breaker, accidental unplugging, or power
failure. If the paddle switch is locked on, the tool will
start unexpectedly when it is reconnected.
nOTE: To reduce unexpected tool movement, do not
switch the tool on or off while under load conditions. Allow
the grinder to run up to full speed before touching the work
surface. Lift the tool from the surface before turning the tool
off. Allow the tool to stop rotating before putting it down.
1. To turn the tool on, push the lock-off lever
the back of the tool, then depress the paddle switch
The tool will run while the switch is depressed.
2. Turn the tool off by releasing the paddle switch.

Lock-On Button

DWE402, DWE402g, DWE4222, DWE43114,
DWE43144
The lock-on button 10 offers increased comfort in
extended use applications. To lock the tool on, depress
the lock-on button while the tool is running. The tool will
continue to run after the switch is released. To unlock and
turn off the tool, depress and release the switch.
nOTE: A grinder should never be locked ON by any
other means.
Spindle Lock (Fig. A)
The spindle lock is provided to prevent the spindle from
1
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.
Surface Grinding, Sanding and Wire
Brushing (Fig. I)

CAUTION: Always use the correct guard per the
instructions in this manual.

WARNING: Metal dust build-up. Extensive use
of flap discs in metal applications can result in the
increased potential for electric shock. To reduce
this risk, insert an RCD before use and clean the
ventilation slots daily by blowing dry compressed air
into the ventilation slots inaccordance with the below
maintenance instructions.
To perform work on the surface of a workpiece:
8 once
10 ]
toward
9
8 .