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To turn the tool on, push the
A
B
lock-off lever (B) toward the back of
the tool, then depress the paddle
switch (A). The tool will run while the
switch is depressed. Turn the tool off
by releasing the paddle switch.
WARNING: Do not disable the lock-off lever. If the lock-off lever
is disabled, the tool may start unexpectedly when it is laid down.
SLIDER SWITCH (D28131, D28140)
CAUTION: Before connecting the tool to a power supply, be sure
the switch is in the off position by pressing the rear part of the switch
and releasing. Ensure the switch is in the off position 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.
To start the tool, slide the ON/OFF switch
L
(L) toward the front of the tool. To stop
the tool, release the ON/OFF switch.
For continuous operation, slide the
switch toward the front of the tool and
press the forward part of the switch
inward. To stop the tool while operating in continuous mode,
press the rear part of the switch and release.
LOCK-ON BUTTON (D28114, D28144)
The lock-on button (J) offers increased
J
A
B
comfort in extended use applications.
To lock the tool on, push the lock-off
lever (B) toward the back of the tool
then depress the paddle switch (A).
With the tool running, depress the
lock-on button (J). The tool will contin-
ue to run after the paddle switch is released. To unlock the tool,
depress and release the paddle switch. This will cause the tool to
stop.
CAUTION: Allow the tool to reach full speed before touching tool
to the work surface. Lift the tool from the work surface before turn-
ing the tool off.
SPINDLE LOCK
C
The spindle lock (C) is provided to prevent
the spindle from 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. Do not engage the spindle lock while the tool is
operating because damage to the tool will result. To engage the
lock, depress the spindle lock button and rotate the spindle until
you are unable to rotate the spindle further.
Mounting and Using Depressed Center
Grinding Wheels and Sanding Flap Discs
MOUNTING AND REMOVING HUBBED WHEELS
WARNING: Turn off and unplug the tool before making any
adjustments or removing or installing attachments or acces-
sories. Before reconnecting the tool, depress and release the
paddle switch to ensure that the tool is off.
Hubbed wheels install directly on the 5/8"-11 threaded spindle.
Thread of accessory must match thread of spindle.
1. Backing flange is retained to the grinder by an O-ring on the
spindle. Remove backing flange by pulling and twisting flange
away form the machine.
2. Thread the wheel on the spindle by hand.
3. Depress the spindle lock button and use a wrench to tighten
the hub of the wheel.
4. Reverse the above procedure to remove the wheel.
CAUTION: Failure to properly seat the wheel before turning the
tool on may result in damage to the tool or the wheel.