DeWalt DW820 Grinder User Manual


 
ENGLISH
8
1. Place the tool on a table, guard up.
2. Fit the backing flange(g) correctly onto the
spindle(h) (fig. 4).
3. Place the disc(i) on the flange(g). When fitting
a disc with a raised centre, make sure that the
raised centre(j) is facing the flange(g).
4. Screw the outer flange (k) onto the spindle(h)
(fig. 5). The ring on the flange (k) must face
towards the disc when fitting a grinding disc.
5. Press the spindle lock button(b) and rotate the
spindle(h) until it locks in position.
6. Tighten the flange (k) with the two pin spanner
supplied.
7. Release the spindle lock.
8. To remove the disc, loosen the flange (k) with
the two pin spanner.
Prior to Operation
Install the guard and appropriate disc or wheel.
Do not use excessively worn discs or wheels.
Be sure the inner and outer flange are mounted
correctly.
Make sure the disc or wheel rotates in the
direction of the arrows on the accessory and
the tool.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
WARNING: To reduce the risk
of serious personal injury, turn
tool off and disconnect tool from
power source before making any
adjustments or removing/installing
attachments or accessories. Before
reconnecting the tool, depress and
release the trigger switch to ensure that
the tool is off.
WARNING:
Ensure all materials to be ground or
cut are secured in place.
Apply only a gentle pressure to the
tool. Do not exert side pressure on the
disc.
Avoid overloading. Should the tool
become hot, let it run a few minutes
under no load condition.
Proper Hand Position (fi g. 1, 6)
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(d), with the other hand on the body of the
tool, as shown in Figure 6.
Switching On and Off (fi g. 1)
WARNING: Do not switch the tool on
or off when under load.
WARNING: Before using the tool,
check that the handle is tightened
securely.
To start the tool, slide the on/off slider switch(a)
toward the front of the tool. To stop the tool, release
the on/off slider 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 slider switch and release.
Spindle Lock (fi g. 1)
The spindle lock(b) 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.
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.
Metal Applications
When using the tool in metal applications, make
sure that a residual current device (RCD) has been
inserted to avoid residual risks caused by metal
swarf.
If the power supply is shut off by the RCD, take the
tool to an authorised DEWALT repair agent.
WARNING: In extreme working
conditions, conductive dust can