Prior To Operation - DeWalt DWE4118 Original Instructions Manual

ENGLISH

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.
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.
Variable Speed Dial (Fig. 1)
The variable speed dial M offers added tool control and Enables
the tool to be used at optimum conditions to suit the accessory
and material.
Turn the variable speed dial M to the desired level. Turn the dial
upward for higher speed and downward for lower speed.
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. Be sure the
trigger switch is in the OFF position. An accidental start-up
can cause injury.

WARNING:
• Ensure all materials to be ground or cut are secured
in place.
• Secure and support the workpiece. Use clamps or a vice
to hold and support the workpiece to a stable platform.
It is important to clamp and support the workpiece
securely to prevent movement of the workpiece and
loss of control. Movement of the workpiece or loss of
control may create a hazard and cause personal injury.
Support panels or any oversized workpiece to
•
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.
• 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 to cool the
accessory. Do not touch accessories before they have
cooled. The discs become very hot during use.
Proper Hand Position (Fig. 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.
10
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.
Switches

WARNING: Do not switch the tool on or off when under
load.

WARNING: Before using the tool, check that the handle is
tightened securely.
SLIDER SWITCH (FIG. 1)
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 (Fig. 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.
Using Depressed Centre Grinding Wheels
SURFACE GRINDING WITH GRINDING WHEELS
1. Allow the tool to reach full speed before touching the tool
to the work surface.
2. Apply minimum pressure to the work surface, allowing the
tool to operate at high speed.
Grinding rate is greatest when the tool operates at high
speed.
3. Maintain a 20° to 30° angle between the tool and work surface.
4. Continuously move the tool in a forward and back motion to
avoid creating gouges in the work surface.
5. Remove the tool from work surface before turning tool off.
Allow the tool to stop rotating before laying it down.
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 accumulate inside the machine housing when
working with metal. This can result in the protective
insulation in the machine becoming degraded with
a potential risk of an electrical shock.