DeWalt DWE4377 Instruction Manual page 40

ENGlIsh

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.
• The gear becomes very hot during use.
• Apply only a gentle pressure to the tool. Do not
exert side pressure on the disc.
• Always install the guard and appropriate disc or
wheel. Do not use excessively worn disc or wheel.
• 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.
• 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.
Proper Hand Position (Fig. F)

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 F.
Variable Speed Dial (Fig. A)

WARNING: Regardless of the speed setting, the rated
speed of the accessory must be at least equal to the
maximum speed marked on the power tool.
The variable speed dial 11
enables the tool to be used at optimum conditions to suit
the accessory and material.
38
offers added tool control and
• Turn the variable speed dial
the dial upward for higher speed and downwards for
lower speed.
Trigger Switch and Lock-off Lever (Fig. A)

WARNING: Before using the tool, check that the side
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.
1. To turn the tool on, push the trigger lock-off lever
toward the back of the tool, then depress the trigger
switch . The tool will run while the switch is depressed.
8
2. Turn the tool off by releasing the releasing switch.

WARNING: 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.
Spindle Lock (Fig. A)
The spindle lock button 2
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.
Surface Grinding, Sanding and Wire
Brushing

CAUTION: Always use the correct guard per the
instructions in this manual.

WARNING: Metal dust build‑up. Extensive use
of flap discs in metal applications can result in the
increased potential for electric shock. To reduce
this risk, insert an RCD before use and clean the
ventilation slots daily by blowing dry compressed air
into the ventilation slots inaccordance with the below
maintenance instructions.
To perform work on a the surface of a workpiece:
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. Material removal rate is
greatest when the tool operates at high speed.
11 to the desired level. Turn
is provided to prevent the spindle
Angle
9