Intended Use; Assembly And Adjustments; Optional Accessories - DeWalt DCD778M1 Manual

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English
Screw
11
Magnetic bit holder (included with some models)
12
Date code
13

Intended Use

These drills/drivers/hammerdrills are designed for professional
drilling, percussion drilling and screwdriving applications.
DO nOT use under wet conditions or in the presence of
flammable liquids or gases.
These drills/drivers/hammerdrills are professional power tools.
DO nOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
this tool.
• 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.

ASSEMBLY AND ADJUSTMENTS


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.

WARNING: Use only D
e
Inserting and Removing the Battery Pack from the
Tool (Fig. B)
nOTE: Make sure your battery pack
To Install the Battery Pack into the Tool Handle
1. Align the battery pack
 7 
handle (Fig. B).
2. Slide it into the handle until the battery pack is firmly seated
in the tool and ensure that you hear the lock snap into place.
To Remove the Battery Pack from the Tool
1. Press the battery release button
pack out of the tool handle.
2. Insert battery pack into the charger.
Fuel Gauge Battery Packs (Fig. B)
Some D
WALT battery packs include a fuel gauge which
e
consists of three green LED lights that indicate the level of
charge remaining in the battery pack.
To actuate the fuel gauge, press and hold the fuel gauge
button 
 14 
. A combination of the three green LED lights will
illuminate designating the level of charge left. When the level
of charge in the battery is below the usable limit, the fuel gauge
will not illuminate and the battery will need to be recharged.
nOTE: The fuel gauge is only an indication of the charge left on
the battery pack. It does not indicate tool functionality and is
subject to variation based on product components, temperature
and end-user application.
Belt Hook and Magnetic Bit Holder (Fig. A)

Optional Accessories


WARNING: To reduce the risk of serious personal injury,
ONLY use the tool's belt hook to hang the tool from a work
8 8
WALT battery packs and chargers.
is fully charged.
 7 
with the rails inside the tool's
 8 
and firmly pull the battery
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.

CAUTION: To reduce the risk of personal injury or
damage, DO NOT use the belt hook to hang the drill while
using as a spotlight.
iMPORTAnT: When attaching or replacing the belt hook 
magnetic bit holder 
 12
, use only the mounting screw 
is provided. Be sure to securely tighten the screw.
The belt hook and magnetic bit holder can be attached to either
side of the tool using only the screw provided, to accommodate
left- or right-handed users. If the hook or magnetic bit holder is
not desired at all, it can be removed from the tool.
To move belt hook or bit clip, remove the screw that holds it in
place then reassemble on the opposite side. Be sure to securely
tighten the screw.
Variable Speed Trigger Switch (Fig. A)
To turn the tool on, squeeze the variable speed
trigger switch 
 1 
. To turn the tool off, release the trigger switch.
Your tool is equipped with a brake. The chuck will stop as soon
as the trigger switch is fully released.
nOTE: Continuous use in variable speed range is not
recommended. It may damage the switch and should
be avoided.
Forward/Reverse Control Button (Fig. A)
A forward/reverse control button 
the tool and also serves as a lock-off button.
To select forward rotation, release the trigger switch and
depress the for ward/re verse control button on the right side of
the tool.
To select reverse, release the trigger switch and depress the
forward/reverse control button on the left side of the tool.
The centre position of the control button locks the tool in the off
position. When changing the position of the control button, be
sure the trigger is released.
nOTE: The first time the tool is run after changing the direction
of rotation, you may hear a click on start up. This is normal and
does not indicate a problem.
Torque Adjustment Collar (Fig. A)
Your tool has an adjustable torque screwdriver mechanism for
driving and removing a wide array of fastener shapes and sizes
and in some models, a hammer mechanism for drilling into
masonry. Circling the torque adjustment collar 
a drill bit symbol, and on some models, a hammer symbol.
These numbers are used to set the clutch to deliver a torque
range. The higher the number on the collar, the higher the
torque and the larger the fastener which can be driven. To select
any of the numbers, rotate until the desired number aligns with
the arrow.
Dual Range Gearing (Fig. A)
The dual range feature of your drill/driver allows you to shift
gears for greater versatility.
1. To select speed 1 (high torque setting), turn the tool off
and permit it to stop. Slide the gear shifter 
the chuck).
 10
 11 
that
 2 
determines the direction of
 3 
are numbers,
 4 
forward (towards
or

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