Operation; Maintenance - DeWalt DCF403 Manual

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Belt Hook (Fig. E)
Included with Some Models

WARNING: To reduce the risk of serious personal
injury, ONLY use the tool's belt hook to hang the
tool from a work belt. DO NOT use the belt hook for
tethering or securing the tool to a person or object during
use. DO NOT suspend tool overhead or suspend objects
from the belt hook.

WARNING: To reduce the risk of serious personal
injury, ensure the screw holding the belt hook is secure.
iMPORTAnT: When attaching or replacing a belt hook, use only
the screw that is provided. Be sure to securely tighten the screw.
A belt hook 
can be attached to either side of the tool
 21 
using only the screw 
provided, to accommodate left‑ or
 22 
right‑handed users. If the belt hook is not desired at all, it can be
removed from the tool.
To move the belt hook, remove the screw 
place then reassemble on the opposite side. Be sure to securely
tighten the screw.

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 battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
Proper Hand Position (Fig. G)

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 main handle 
LED Worklight (Fig. A)

CAUTION: Do not stare into the LED. Serious eye injury
could result.
The LED worklight 
improves visibility in the direct work area.
 10 
When the tool is activated by pressing the trigger switch 
the LED worklight 
will automatically turn on. The LED
 10 
worklight will turn off 60 seconds after the on/off button has
been released.
The LED worklight 
will flash slowly when the battery state
 10 
of charge is low.
The LED worklight 
will flash fast if the nose equipment is
 10 
clogged. Refer to Cleaning the Nose Equipment or Replacing
Jaws for the proper cleaning procedure.
Installing a Blind Rivet (Fig. A, F)
To Install a Blind Rivet
1. Place the blind rivet 
 20 
10
that holds it in
 22 
in the nosepiece 
.
 1 
2. Position the tool as shown in Proper Hand Position.
3. Pull and hold the trigger switch 
in the application.
4. When the blind rivet has been set completely, release
the trigger switch. The tool will return to its initial
position automatically.
5. Tilt the unit backwards and the mandrel will go to the
mandrel collector 
pushed into the mandrel collector by pulling the next rivet.
If you release the switch before the end of the setting stroke,
the tool will immediately return to its initial position. If the blind
rivet has not been set completely, repeat the previous steps.
Emptying the Mandrel Collector (Fig. D)
Always empty the mandrel collector 
rivet mandrels before it is completely full in order to
prevent blockages.
1. Unscrew the mandrel collector by turning it anticlockwise.
2. Empty the mandrel collector into a suitable recycling or
waste bin.
3. Screw the mandrel collector back onto the power tool by
turning it clockwise.

MAINTENANCE

Your power tool has been designed to operate 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 battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
The charger and battery pack are not serviceable.
Maintenance Frequency
.
 8 
Item
General tool inspection
Clean and lubricate nose equipment
*Recommend contacting authorised service centre
Cleaning
,
 9 

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.
until the rivet is fully set
 9 
by gravity. The mandrel will also be
 5 
for broken‑off
 5 
Frequency
Daily
5000 rivets

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