DeWalt DWE4579 - Pre-Operation Checks and Setup; Operating Instructions and Controls; Proper Hand Position and Switching; Lock-on Button and Spindle Lock

13
ENGLISH
2. Tighten the threaded keyless flange
19
by turning it by
hand clockwise firmly. (Only use aflawless keyless flange.)
a. Be sure that the printed side of the keyless flange is
facing you
b. The arrow must point to the index mark (Fig.G).
3. Release the spindle lock.
An undamaged keyless flange can be loosened by hand when
turning the flange ring in an anti-clockwise direction.
NOTICE: NEVER loosen atight keyless flange with pliers.
Always use the the two-pin spanner
20
(Fig.H).
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.
• 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
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.
• 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.
• Always wear regular working gloves while operating
this tool.
• 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.
• Never work with the grinding cup without asuitable
protection guard in place.
• Do not use the power tool with acut-off stand.
• Never use blotters together with bonded
abrasiveproducts.
• Be aware, the wheel continues to rotate after the tools
is switched off.
• The tool is not designed to be used with
agrindingcup.
• Do not use separate reducing bushings or adapters to
adapt large hole abrasive wheels.
Proper Hand Position (Fig.A)

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
5
, with the other hand on the body of the tool, as shown in
figureA.
Switching On and Off (Fig.A)
The on/off switch is equipped with an unlocking switch.
To run the tool, depress the unlocking switch
2
and
subsequently operate the on/off switch
1
.
Release the unlocking switch
2
.To stop the tool, release
theswitch.
Lock-on Button (Fig.A)
DWE4579, DWE4579R, DWE4597,
DWE4599
For continuous operation depress the lock-on button
7
and
release the on/off trigger switch.
To stop the tool press the on/off switch again.
The lock-on button can be permanently removed without
compromising compliance with regulatory agencies shown on
the tool’snameplate. Removal of the lock pin must be done by
aD
EWALT Service Centre.
Spindle Lock (Fig.A)
The spindle lock
3
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.