DeWalt DWE4235 Original Instructions Manual page 14

English
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/cutting rate is greatest
when the tool operates at high speed.
3. Position yourself so that the open‑underside of the wheel is
facing away from you.
4. Once a cut is begun and a notch is established in the
workpiece, do not change the angle of the cut. Changing
the angle will cause the wheel to bend and may cause wheel
breakage. Edge grinding wheels are not designed to withstand
side pressures caused by bending.
5. Remove the tool from the work surface before turning the
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 D WALT repair agent.
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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.
To avoid build‑up of metal swarf inside the machine, we
recommend to clear the ventilation slots on a daily basis. Refer
to Maintenance.
Cutting Metal
For cutting with bonded abrasives, always use the
guard Type A.
When cutting, work with moderate feed, adapted to the
material being cut. Do not exert pressure onto the cutting disc,
tilt or oscillate the machine.
Do not reduce the speed of running down cutting discs by
applying sideward pressure.
The machine must always work in an upgrinding motion.
Otherwise, the danger exists of it being pushed uncontrolled
out of the cut.
When cutting profiles and square bar, it is best to start at the
smallest cross section.
Rough Grinding
never use a cutting disc for roughing.
Always use the guard Type B.
The best roughing results are achieved when setting the
machine at an angle of 30° to 40°. Move the machine back and
forth with moderate pressure. In this manner, the workpiece
will not become too hot, does not discolour and no grooves
are formed.
Cutting Stone
The machine shall be used only for dry cutting.
For cutting stone, it is best to use a diamond cutting disc.
Operate the machine only with additional dust protection mask.
Working Advice
Exercise caution when cutting slots in structural walls.
Slots in structural walls are subject to the country‑specific
regulations. These regulations are to be observed under all
circumstances. Before beginning work, consult the responsible
structural engineer, architect or the construction supervisor.
14
MAINTENANCE
Your D WALT power tool has been designed to operate
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over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper tool
care and regular cleaning.

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.
Pop-off Brushes
The motor will be automatically shut off indicating that the
carbon brushes are nearly worn out and that the tool needs
servicing. The carbon brushes are not user‑serviceable. Take the
tool to an authorised D WALT repair agent.
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Lubrication
Your power tool requires no additional lubrication.
Cleaning

WARNING: Electrical shock and mechanical hazard.
Disconnect the electrical appliance from the power source
before cleaning.

WARNING: To ensure safe and efficient operation, always
keep the electrical appliance and the ventilation slots clean.

WARNING: Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the tool. These chemicals may
weaken the materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid get inside the
tool; never immerse any part of the tool into a liquid.
Ventilation slots can be cleaned using a dry, soft non‑metallic
brush and/or a suitable vacuum cleaner. Do not use water or
any cleaning solutions. Wear approved eye protection and an
approved dust mask.
Optional Accessories

WARNING: Since accessories, other than those offered by
D WALT, have not been tested with this product, use of such
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accessories with this tool could be hazardous. To reduce the risk
of injury, only D WALT recommended accessories should be used
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with this product.

WARNING: Do not use a bonded abrasive wheel that is
past its expiration (EXP) date as marked near center of wheel
(if provided). Expired wheels are more likely to burst and cause
serious injury. Store bonded abrasive wheels in dry location
without temperature or humidity extremes. Destroy expired or
damaged wheels so they cannot be used.
Consult your dealer for further information on the
appropriate accessories.
Max.
[mm]
D b
115 6
d
125 6
D
b
150 6
Min. Peripheral
[mm]
Rotation speed hole length
–1
[min. ] [m/s]
d
22,23 11500 80
22,23 11500 80
22,23 9300 80
Threaded
[mm]
–
–
–