DeWalt DWE4377 Original Instructions Manual page 10

ENGLISH
• Young children and the infirm. This appliance is not
intended for use by young children or infirm persons
without supervision.
• This product is not intended for use by persons (including
children) suffering from diminished physical, sensory or
mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their
safety. Children should never be left alone with this product.
Features
E-switch Protection
The ON/OFFswitch has a no-volt release function. In the event of
a power outage or other unexpected shut down, the switch will
need to be cycled (turned on and off ) to restart tool.
E-Clutch
This unit is equipped with an E-Clutch (Electronic Clutch), which
in the event of a stall or wheel pinch, the unit will be shut off to
reduce the reaction torque to the user. The switch needs to be
cycled (turned on and off ) to restart tool.
Brake
When the trigger switch is released the motor immediately
turns off and electronically brakes, stopping the accessory
quickly to prevent accidental contact and improve productivity.
Kickback Brake
When a pinch, stall, or bind-up event is sensed the electronic
brake engages with maximum force to quickly stop the wheel,
reduce the movement of the grinder, and shut the grinder off.
The switch needs to be cycled (turned on and off ) to restart
the tool.
Constant Clutch
When overloaded or stalled the motor torque is reduced to
allow the user to maintain control of the tool. If load is reduced
the torque and RPM will increase. If the tool is stalled for an
extended amount of time it will shut-off and require the switch
to cycle to restart. This feature mimics a mechanical clutch
without the associated component wear.
Electronic Soft Start
This feature limits the initial start up momentum, allowing the
speed to build up gradually over a 1 second period.
LED Indicator (Fig. A)
The LED indicator 10 will remain lit green during normal
activity, or blink in a pattern of red light to alert you a tool
protection feature has been activated. Refer to the LED Guide at
the back of this manual for explanations of blink patterns.
ASSEMBLY AND ADJUSTMENTS
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.
10
Attaching Side Handle (Fig. A)
WARNING: Before using the tool, check that the handle is
tightened securely.
Screw the side handle 5 tightly into one of the holes on either
side of the gear case. The side handle should always be used to
maintain control of the tool at all times.
Guards
CAUTION: Guards must be used with all grinding
wheels, cutting wheels, sanding flap discs, wire
brushes, and wire wheels. The tool may be used
without a guard only when sanding with conventional
sanding discs. Refer to Figure A to see guards provided
with the unit. Some applications may require purchasing
the correct guard from your local dealer or authorized
service centre.
NOTE: Edge grinding and cutting can be performed with
Type 27 wheels designed and specified for this purpose;
6 mm thick wheels are designed for surface grinding
while thinner Type 27 wheels need to be examined for the
manufacturer's label to see if they can be used for surface
grinding or only edge grinding/cutting. A Type 1 guard must
be used for any wheel where surface grinding is forbidden.
Cutting can also be performed by using a Type 41 wheel and
a Type 1 guard.
NOTE: See the Grinding and Cutting Accessory Chart to select
the proper guard / accessory combination.
Adjusting and Mounting Guard (Fig. B, C)
CAUTION: Turn unit off and unplug the tool before
making any adjustments or removing or installing
attachments or accessories.
CAUTION: BEFORE operating the tool, identify which
guard adjustment option your tool is set to.
Adjustment Options
For guard adjustment, the guard release lever
the alignment holes on the guard collar using a ratcheting
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feature. Your grinder offers two options for this adjustment.
TM
• One-touch : In this position the engaging face is slanted
and will ride over to the next alignment hole when guard
is rotated in a clockwise direction (spindle facing user) but
self-locks in the anti-clockwise direction.
TM
• Two-touch : In this position the engaging face is straight
and squared off. It will NOT ride over to the next alignment
hole unless guard release lever is pressed and held while
simultaneously rotating the guard in either a clockwise or
anti-clockwise direction (spindle facing user).
TM
One-Touch
engages one of
7
TM
Two-Touch