DEC004DC
INSTRUCTION MANUAL
Code: DEC004DC
Date: 061012
Black
Cyan
Magenta
Yellow
Edition: 08
Op: PW
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Introduction
Description of symbols
Your new GMC power tool will more than satisfy
your expectations. It has been manufactured under
stringent GMC Quality Standards to meet superior
performance criteria.
The rating plate on your tool may show symbols.
These represent important information about the
product or instructions on its use.
Wear hearing protection.
Wear eye protection.
Wear breathing protection.
You will find your new tool easy and safe to operate,
and, with proper care, it will give you many years
of dependable service.
Double insulated for additional protection.
CAUTION. Carefully read through this entire Instruction
Manual before using your new GMC Power Tool. Take
special care to heed the Cautions and Warnings.
Conforms to relevant standards
for electromagnetic compatibility.
Your GMC power tool has many features that will make
your job faster and easier. Safety, performance, and
dependability have been given top priority in the
development of this tool, making it easy to maintain
and operate.
Specifications
Input power:
No load speed:
Collet size:
9.6V
5,000–25,000 min-1
Environmental protection
Ø1.5mm, Ø2.0mm,
Ø2.4mm and Ø3.2mm
Recycle unwanted materials instead
of disposing of them as waste. All tools,
hoses and packaging should be sorted,
taken to the local recycling centre and
disposed of in an environmentally safe way.
Speed settings:
Flexible shaft length:
Weight:
5
1.0 m
0.5kg
76.9dB(A)
Sound pressure level:
Battery Charger
Input voltage:
230–240Vac ~ 50 Hz
12V DC 200mA 2.4VA
5–7 hours
Output voltage:
Charging time:
3
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3. Personal safety
General safety rules
a. Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A moment
of inattention while operating power tools may result in
serious personal injury.
WARNING. Read all instructions. Failure to follow all
instructions listed below may result in electric shock, fire and/
or serious injury. The term “power tool” in all of the warnings
listed below refers to your mains operated (corded) power
tool or battery operated (cordless) power tool.
Save these instructions
1. Work area
b. Use safety equipment. Always wear eye protection.
Safety equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
a. Keep work area clean and well lit. Cluttered and dark
areas invite accidents.
b. Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks which
may ignite the dust or fumes.
c. Avoid accidental starting. Ensure the switch is in the
off position before plugging in. Carrying power tools with
your finger on the switch or plugging in power tools that
have the switch on invites accidents.
c. Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
d. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may result
in personal injury.
2. Electrical safety
a. Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk of
electric shock.
e. Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
f. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewellery or long hair can be
caught in moving parts.
b. Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock
if your body is earthed or grounded.
g. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of these devices
can reduce dust related hazards.
c. Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
d. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk of
electric shock.
4. Power tool use and care
a. Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the job
better and safer at the rate for which it was designed.
b. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
e. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric shock.
4
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c. Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing power tools. Such preventive safety measures
reduce the risk of starting the power tool accidentally.
d. When battery pack is not in use, keep it away from
other metal objects like paper clips, coins, keys,
nails, screws, or other small metal objects that can
make a connection from one terminal to another.
Shorting the battery terminals together may cause burns
or a fire.
d. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
e. Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes,
additionally seek medical help. Liquid ejected from the
battery may cause irritation or burns.
e. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool’s
operation. If damaged, have the power tool repaired
before use. Many accidents are caused by poorly
maintained power tools.
6. Service
a. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
f. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
Additional safety instructions for rotary tools
WARNING. The use of an accessory or attachment, other
than those recommended in this Instruction Manual, may
present a risk of personal injury.
• Do not use a disc marked with a lower RPM than that of
the maximum no load speed shown on the rating label.
g. Use the power tool, accessories and tool bits etc.,
in accordance with these instructions and in the
manner intended for the particular type of power
tool, taking into account the working conditions and
the work to be performed. Use of the power tool for
operations different from those intended could result in a
hazardous situation.
• Always wear eye, ear and breathing protection.
• Do not apply too much pressure when grinding,
cutting, etc.
5. Battery tool use and care
• Keep your hands well clear of the cutting devices.
a. Ensure the switch is in the off position before
inserting battery pack. Inserting the battery pack into
power tools that have the switch on invites accidents.
• If possible, always use clamps or a vice to hold
your work.
• Always switch off before you put the tool down.
• Ensure that the lighting is adequate.
b. Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used with
another battery pack.
• Do not put pressure on the tool, such that it slows the
motor down. Allow the attachments to work without
pressure. You will get better results and you will be taking
better care of your tool.
c. Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
• Keep the area free of tripping hazards.
• Do not let anyone under 18 years operate this tool.
5
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• Only use accessory bits in good condition.
The manufacturer shall not be liable for any changes made
to the tool nor for any damage resulting from such changes.
• Before drilling, check that there is sufficient clearance for
the drill bit under the workpiece.
Even when the tool is used as prescribed it is not possible
to eliminate all residual risk factors. The following hazards
may arise in connection with the tool’s construction and
design:
• Do not touch the attachments after operation.
They may be very hot.
• Keep your hands away from spinning parts.
• Damage to the lungs if an effective dust mask is not worn.
• Damage to hearing if effective ear defenders are not worn
• Rags, cloths, cord, string and the like should never
be left around the work area.
• Support the work properly.
Additional safety instructions for the charger
• Before using the charger, read all the instructions and
cautionary markings on the charger and battery pack as
well as the instructions on using the battery pack.
• Only charge your batteries indoors as the charger is
designed for indoor use only.
• If you are interrupted when operating the tool, complete
the process and switch off before looking up.
• Periodically check that all nuts, bolts and other fixings
are properly tightened.
• When using the tool, use safety equipment including
safety glasses or shield, ear defenders, and protective
clothing including safety gloves. Wear a dust mask if the
rotary tool operation creates dust.
DANGER. If the battery pack is cracked or damaged in any
other way, do not insert it in the charger. There is a danger
of electric shock or electrocution.
If in doubt, do not plug in the tool. Using a power source
with a voltage less than the nameplate rating is harmful to
the motor.
WARNING. Do not allow any liquid to come into contact
with the charger. There is a danger of electric shock.
• Use only the charger supplied in this pack.
The tool must be used only for its prescribed purpose.
Any use other than those mentioned in this Manual will
be considered a case of misuse. The user and not the
manufacturer shall be liable for any damage or injury
resulting from such cases of misuse.
• Protect the charger against moisture including rain and
high humidity.
• Always check that the battery pack is correctly sitting in
the charger before switching the power on.
• When you are not using the charger, remove the plug
from the mains socket. Do not pull the plug out by the
power cord.
To use this tool properly, you must observe the safety
regulations, the assembly instructions and the operating
instructions to be found in this Manual. All persons who use
and service the machine have to be acquainted with this
Manual and must be informed about its potential hazards.
• Always remove the plug from the power socket before
you clean or maintain the charger.
Children and frail people must not use this tool. Children
should be supervised at all times if they are in the area in
which the tool is being used. It is also imperative that you
observe the accident prevention regulations in force in your
area. The same applies for general rules of occupational
health and safety.
• Do not charge the battery if the ambient temperature is
less than 0°C (32°F) or greater than 40°C (104°F).
6
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Additional safety instructions for the
battery pack
• The battery pack for this tool has been shipped in a low
charge condition. You should charge the battery pack fully
before use.
• To ensure the longest battery life and best battery
performance, always charge the battery when the air
temperature is between 18–24°C. Do not charge the
battery pack when the temperature is below 0°C, or above
40°C. This is important. Failure to observe this safety rule
could cause serious damage to the battery pack.
• Do not incinerate the battery pack even if it is seriously
damaged or can no longer hold a charge. The battery
pack can explode in a fire.
• Never attempt to open the battery pack for any reason.
If the plastic housing of the battery pack breaks open
or cracks, immediately discontinue its use and do not
recharge it.
• The battery pack utilizes nickel-cadmium cells. Cadmium is
considered to be a toxic material. Use an environmentally
safe disposal unit at a municipal waste disposal centre to
dispose of a damaged or worn out battery.
7
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Know your product
This DEC004DC Rotary Tool can be used for
Grinding, Polishing, Drilling, Cutting, Sharpening,
Engraving and Sanding.
6
Use the tool and accessories only for intended applications.
All other applications are expressly ruled out.
1. On/Off Switch / Variable Speed Dial
2. Spindle Lock Button
3. Collet Nut
4. Collet Cover
5. Collet
1
6. Release Tab
7. Battery Pack
8. Wire Loop
2
8
7
4
6
5
3
8
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Unpacking
Accessories
Due to modern mass production techniques, it is unlikely
that your GMC Power Tool is faulty or that a part is missing.
If you find anything wrong, do not operate the tool until the
parts have been replaced or the fault has been rectified.
Failure to do so could result in serious personal injury.
The GMC DEC004DC comprises the following components:
1 x Instruction manual
1 x 2-in-1 wrench
1 x Flexible shaft
1 x Height adjustable mounting stand
1 x Ni-Cad battery pack
1 x Battery charger
82 x Multi-purpose accessories (to follow)
Accessories for DEC004DC
A
Qty Accessory Use Accessory Description Qty Accessory Use
10
18
20
2
10
The perfect way to
remove burs and
sharpen tools.
Sanding drums and
discs are perfect for
detailed sanding jobs.
Various cutting
let you cut, trim
shape metal, g
ceramics.
for removing
smoothing out
fections or
ng tools.
9
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y Accessory Use Accessory Description Qty Accessory Use
Ideal for removing
rust, smoothing out
imperfections or
cleaning tools.
4
Ø1.5mm
Ø2.0mm
Ø2.4mm
Ø3.2mm
1
3
3
For use with accessories.
An extremely
convenient way to d
holes with more det
and precision.
For use with sanding
bands.
2
Use with sanding discs,
grinding and cut-off
wheels.
Ø2.4mm
&
Ø3.2mm
Ideal for polishing
most metal surfaces
and plastics. Can be
used with polishing
compound.
Use with felt wheels and
polishing pads
1
For tightening &
loosening the collet
nut and screws on the
sanding band and disc
mandrel
10
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3. Align the tab of the battery
pack with the indent in the
battery charger and lower
into the cradle (fig. C).
Fitting and removing
the battery pack
To remove the battery pack (7)
from the rotary tool, firmly press
the release tabs (6) on the upper
and lower sides of the battery
pack, and slide the battery pack
backward out of the tool (fig. A).
A
C
4. Connect the mains plug
of the battery charger to a
suitable power point.
Obtaining the longest
life from the battery
Never allow the rotary tool to come to a complete stand
Similarly, to install the battery pack, slide the pack fully into
the tool until it “clicks” into position.
still before recharging. The battery should be placed on
Battery charging
IMPORTANT. Before placing the battery pack into the
battery charger cradle, always ensure that the plug is
switched off at the mains.
IMPORTANT. The battery will be fully charged after
5-7 hours of charging. Remove the battery pack from the
charger cradle after approximately 7 hours of charging and
switch the charger off at the mains socket. Do not leave the
battery charging for longer than 24 hours.
charge whenever the battery is noticeably running down
or the rotary tool no longer performs a task it previously
performed.
Avoid conducting short charges. Make sure that the battery
is fully charged every time by allowing the charger to
complete its full charging cycle.
Avoid allowing lose items like screws or nails etc to be
stored with battery packs as these or similar items can short
battery packs and cause a fire or explosion.
1. Locate the male connector of
Always unplug the charger when not in use and store in a
dry secure place.
B
the power lead into the rear
socket of the battery charger
cradle (fig. B).
Avoid charging or storing your battery in temperatures below
0°C (32°F) or greater than 40°C (104°F).
2. Ensure the battery charger
cradle is sitting upright.
Operation
Note. The battery pack (7)
will not drop into the battery
charger cradle if the tab of the
battery is not aligned properly with the indent of the battery
charger.
WARNING. Before connecting the tool to a power source
(power point, outlet, etc.) be sure that the voltage supply is
the same as that specified on the nameplate of the tool. A
power source with a voltage greater than that specified for
the tool can result in serious injury to the user, as well as
damage to the tool. If in doubt, do not plug in the tool. Using
a power source with a voltage less than the nameplate
rating is harmful to the motor.
11
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Switch on
Quick reference guide
D
1. Turn the On/Off switch
(1) anti-clockwise until it
“clicks” into position number
‘1’. The machine is now in
continuous operation, and
will start on the minimum
speed (fig. D).
Operation
Speed
4-5
Cutting metal
Sanding wood
Cutting hard metal
Engraving metal
De-burring
4-5
4-5
3-4
3-4
Switch off
1. Turn the On/Off switch (1)
clockwise until it “clicks” into
position number ‘0’ (fig. E).
E
Drilling holes
Removing rust
Sharpening
3-4
2-3
2-3
Varying the speed
1. You can use the variable
speed dial (1) to alter the
speed of the tool, as follows:
Polishing
1-2
Holding the tool
1. For jobs such as milling or engraving where precision is
required, hold the rotary tool like a pen.
• Position 1 - Slow
• Position 3 - Medium
• Position 5 - Fast
2. For heavier work like cutting or grinding, hold the
machine in the palm of your hand.
2. Select the correct speed for the work and type of bit you
are using. In general, lower speeds are best suited for
large accessories and higher speeds are best suited for
smaller accessories.
Changing the collet
Note. Accessories may require different sized collets
(ie. Ø1.5mm, Ø2.0mm, Ø2.4mm or Ø3.2mm).
1. Unscrew the collet nut (3)
G
by hand turning it in an
anti-clockwise direction
while pressing the spindle
lock button (2) (fig. G).
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2. Remove the collet (5) and
replace with the desired
collet (fig. F). The size of
the collet will depend on
the shaft diameter of the
accessory to be used.
Locating a cutting/sanding disc
1. Locate an appropriate disc mandrel (holder) into
the collet (5).
2. Remove the screw from
the end of the disc mandrel
with the 2-in-1 wrench by
turning in an anti-clockwise
direction (fig. H).
F
H
3. Press the spindle lock
button (2) and hand tighten
the collet nut (3) by turning
it in a clockwise direction.
3. Place a cutting/sanding disc
onto the screw of the disc
mandrel (placing one of the
rubber washers provided
with the disc mandrel on
either side of the for protection).
Changing accessories
WARNING. If the accessory has not been inserted as far as
possible there may be too much shaft exposed which could
cause the bit to damage and/or bend.
IMPORTANT. Ensure the machine is switched off and the
plug is removed from the power before you commence
accessory changeover.
4. Place the screw, with the disc onto the disc shaft and
tighten with the 2-in-1 wrench by turning the screw in
a clockwise direction (Do not over-tighten as the disc
will crack).
Note. Loosen and tighten the collet nut (3) with your hands.
Never tighten the collet nut (3) with the use of pliers or any
other clamping device as the collet nut (3) may strip.
Always ensure bits are tight before commencing any work
with your tool.
Locating a sanding drum
1. Loosen the small screw on
the sanding drum mandrel
(holder) with the 2-in-1
wrench by turning it anti-
clockwise (fig. I). This will
allow the rubber to slacken
and allow the sanding drum
to slide onto the sanding
drum holder.
I
1. Turn the collet nut (3) in an anti-clockwise direction to
loosen and, when loose, insert the desired rotary tool
piece into the collet (5).
Note. If the shaft of the rotary tool is too large to fit into the
collet (5) or fits too loosely, it is necessary to change the
collet. Refer to ‘Changing the collet’ of this manual
for instructions.
3. Slide the sanding band onto
the sanding drum mandrel.
2. Whilst depressing the spindle lock button (2), hand
tighten the collet nut (3) by turning it clockwise until tight.
4. Secure the sand drum mandrel in place by tightening the
screw on the top of the sanding band mandrel with the
use of the 2-in-1 wrench by turning clockwise.
Note. If the rotary tool piece is not spinning, yet the collet
nut (3) is spinning, the collet nut (3) may need to be
tightened further.
Note. Tightening the screw on the sanding band mandrel
will cause the rubber to bulge and grip the sanding band.
Do not over-tighten.
13
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Attaching the flexible shaft
Changing the collet and
accessories on the flexible shaft
Note. To change the collet or install a cutter or accessory
into the flexible shaft, follow the same general procedure as
covered earlier under ‘Changing accessories’.
WARNING. Never bend the flexible shaft with a radius of
less than 150mm (6”) when operating. Please store the
flexible shaft in the designated compartment of the carry
case when not in use.
1. Remove the collet cover (4)
WARNING. Do not attempt to loosen the collet nut of the
flexible shaft without pulling the spindle lock back as far
as possible. Damage to the
J
and then loosen the collet
nut (3) by turning them anti-
clockwise (fig. J).
flexible shaft will result.
N
2. Insert the inner cable of the
flexible shaft into the motor
shaft until the stopper does
not permit the shaft to be
inserted any further (fig. K).
1. To lock the spindle lock,
pull the lock back as far as
possible.
2. Use the 2-in-1 wrench to
loosen and tighten the collet
nut (fig. N).
3. Hand tighten the collet
nut (3) by turning the nut
clockwise (fig. L).
K
Setting up the height
adjustable mounting stand
4. Thread the flexible shaft
collet cover onto the rotary
tool housing and turn it
clockwise. Finger tighten
only (fig. M).
1. Locate the screw of the
stand shaft into the stand
mounting block and turn
the shaft clockwise until it
threads in. Tighten the shaft
until it is locked into the
mounting block (fig. O).
O
M
L
2. Loosen the mounting
block screw (anti-clockwise)
and slide the mounting
block onto your work
bench (fig. P).
P
WARNING. Never tighten the collet cover with the use of
pliers or a wrench as the thread will strip.
14
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3. Loosen the shaft by turning anti-clockwise (as indicated
on the shaft). Extend the shaft to the desired height and
lock it into place by turning the shaft clock-wise (fig. Q).
Maintenance
Store the machine, instruction manual and, where
necessary, the accessories in the original packaging. In this
way you will always have all the information and parts ready
on hand.
Q
R
Cleaning
1. Keep the tool’s air vents unclogged and clean at all times.
2. Remove dust and dirt regularly. Cleaning is best done
with a rag.
3. Never use caustic agents to clean plastic parts.
CAUTION. Do not use cleaning agents to clean the plastic
parts of the tool. A mild detergent on a damp cloth is
recommended. Water must never come into contact with
the tool.
4. Use the wire loop (8) to hang the rotary tool when using
the flexible shaft. (fig. R)
Repairs
1. Only an authorised service centre should replace the
cordset or effect other repairs. If the cordset is damaged
or worn, have it repaired or replaced by an authorised
service centre.
2. When the brushes are worn, the tool may not work. Have
new brushes fitted by an authorised service centre.
Please refer to your warranty card, which is separate to
these instructions
15
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GMC customer assist
If your product needs repairing, replacing,
technical service or you simply need help or advice,
please contact us on our Customer Assist Line
1300 880 001 (Australia) or 0800 445 721 (New Zealand).
For prompt service we suggest you log your service request
access to the Internet, please contact our service department
on 1300 880 001 (Australia) or 0800 445 721 (New Zealand).
7am –7pm, 7days a week (AEST).
Please note that if repair or replacement is required,
you must provide a valid original purchase receipt.
You will need the following details at hand to log your service request;
Personal details: First & Last name, address, pick up address,
contact phone numbers, email address
Product details: Product number, date of purchase, retailer bought from,
State & postcode, receipt number, reason for the request,
copy of official purchase receipt
Attach your purchase receipt and save with this Manual for future reference.
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