Prior To Operation - DeWalt D28142 Operator's Manual

EN GLI SH
Fitting and Removing a Grinding or
Cutting Disc (fi g. 1, 4, 5)
WARNING: Do not use a damaged
disc.
1. Place the tool on a table, guard up.
2. Fit the backing flange (i) correctly onto the
spindle (o) (fig. 4).
3. Place the disc (n) on the backing flange (i).
When fitting a disc with a raised center, make
sure that the raised centre (j) is facing the
backing flange (i).
4. Screw the threaded clamp nut (h) onto the
spindle (o) (fig. 5):
a. The ring on the threaded clamp nut (h) must
face towards the disc when fitting a grinding
disc (fig. 5A);
b. The ring on the threaded clamp nut (h) must
face away from the disc when fitting a cutting
disc (fig. 5B).
5. Press the spindle lock button (c) and rotate the
spindle (o) until it locks in position.
6. Tighten the threaded clamp nut (h) with the two-
pin spanner supplied.
7. Release the spindle lock.
8. To remove the disc, loosen the threaded clamp
nut (h) 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.
10
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 (f), with the other hand on the body of the
tool, as shown in figure 6.
Paddle Switch (fi g. 1, 3)
WARNING: Before using the tool,
check that the handle is tightened
securely.
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 rotating. Make sure the wheel has
come to a complete stop be fore laying
the tool down.
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 (b)
toward the back of the tool, then depress the
paddle switch (a). The tool will run while the
switch is depressed.
2. 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.
CAUTION: Allow the tool to reach full
speed before touching tool to the work
surface. Lift the tool from the work
surface before turning the tool off.