MasterCraft 054-7520-2 User manual

IMPORTANT:
Read and understand this instruction manual
thoroughly before using the product.
INSTRUCTION
MANUAL
1/2” (13 MM) DRILL/DRIVER
054-7520-2

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TABLE OF CONTENTS
Technical Specifications 4
Safety Guidelines 5
Key Parts Diagram 11
Operating Instructions 12
Maintenance 20
Troubleshooting 21
Parts List 22
Warranty 23
NOTE:
If any parts are missing or damaged, or if you have any questions,
please call our toll-free helpline at 1-800-689-9928.
SAVE THESE INSTRUCTIONS
• This manual contains important safety and operating instructions. Read all
instructions and follow them with use of this product.
TABLE OF CONTENTS

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TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Rated Voltage 20 V d.c.
Chuck Capacity 1/2" (13 mm)
No-load Speed 0-400 RPM / 0-1700 RPM
Max. Torque 420 in-lb
Clutch 24, including drill mode
Cordless Drill/Driver Weight (without battery) 2 lb 13 oz (1.27 kg)
*Maximum battery voltage without workload; with workload nominal voltage is 18V.

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SAFETY GUIDELINES
SAFETY GUIDELINES:
WARNING!
Safety symbols in this Instruction Manual are used to flag possible dangers. The safety
symbols and their explanations require your full understanding. The safety warnings do
not, by themselves, eliminate any danger, nor are they substitutes for proper accident
prevention measures.
WARNING!
This Safety Alert Symbol indicates caution, warning, or danger. Failure to obey a safety
warning can result in serious injury to yourself or others. To reduce the risk of injury, fire, or
electric shock, always follow the safety precautions.
KNOW YOUR TOOL
To operate this tool, carefully read this Instruction Manual and all labels affixed to the cordless drill/
driver before using. Keep this instruction manual available for future reference.
IMPORTANT
This tool should only be serviced by a qualified service technician. For more information, call the toll-
free helpline at 1-800-689-9928.
READ ALL INSTRUCTIONS THOROUGHLY.
SAVE THESE INSTRUCTIONS.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING!
Read all safety warnings, instructions, illustrations and specifications provided
with this power tool. Failure to follow all instructions listed below may result in electric
shock, fire and/or serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-
operated (cordless) power tool.
WORK AREA SAFETY
• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• 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.
• Keep children and bystanders away while operating a power tool. Distractions can cause
you to lose control.

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SAFETY GUIDELINES
ELECTRICAL SAFETY
• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use
any adaptor plugs with earthed (grounded) power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
• 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.
• Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
• 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.
• 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.
• If operating a power tool in a damp location is unavoidable, use a ground-fault circuit
interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock.
PERSONAL SAFETY
• 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.
• Use personal protective equipment. Always wear eye protection. Protective equipment
such as a dust mask, non-skid safety shoes, hard hat or hearing protection, used for appropriate
conditions will reduce personal injuries.
• Prevent unintentional starting. Ensure the switch is in the off-position before
connecting to power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or energising power tools that have the
switch on invites accidents.
• 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.
• Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewellery. Keep your hair, and clothing
away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
• If devices are provided for the connection of dust extraction and collection facilities,
ensure these are connected and properly used. Use of dust collection can reduce dust-
related hazards.
• Do not let familiarity gained from frequent use of tools allow you to become
complacent and ignore tool safety principles. A careless action can cause severe injury
within a fraction of a second.

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SAFETY GUIDELINES
POWER TOOL USE AND CARE
• 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.
• 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.
• Disconnect the plug from the power source and/or remove the battery pack,
if detachable, from the power tool before making any adjustments, changing
accessories, or storing power tools. Such preventive safety measures reduce the risk of
starting the power tool accidentally.
• 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.
• Maintain power tools and accessories. 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.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits, etc., in accordance with these instructions,
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.
• Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery
handles and grasping surfaces do not allow for safe handling and control of the tool in
unexpected situations.
BATTERY TOOL USE AND CARE
• 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.
• Use power tools only with specifically designated battery packs. Use of any other battery
packs may create a risk of injury and fire.
• 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.
• 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.
• Do not use a battery pack or tool that is damaged or modified. Damaged or modified
batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
• Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or
temperature above 130°C (265°F) may cause explosion.

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SAFETY GUIDELINES
• Follow all charging instructions and do not charge the battery pack or tool outside the
temperature range specified in the instructions. Charging improperly or at temperatures
outside the specified range may damage the battery and increase the risk of fire.
SERVICE
• 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.
• Never service damaged battery packs. Service of battery packs should only be performed by
the manufacturer or authorized service providers.
DRILL SAFETY WARNINGS
SAFETY INSTRUCTIONS FOR ALL OPERATIONS
• Hold the power tool by insulated gripping surfaces, when performing an operation
where the cutting accessory or fasteners may contact hidden wiring or its own cord.
Cutting accessory or fasteners contacting a “live” wire may make exposed metal parts of the
power tool “live” and could give the operator an electric shock.
SAFETY INSTRUCTIONS WHEN USING LONG DRILL BITS
• Never operate at higher speed than the maximum speed rating of the drill bit. At higher
speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece,
resulting in personal injury.
• Always start drilling at low speed and with the bit tip in contact with the workpiece. At
higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece,
resulting in personal injury.
• Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits
can bend causing breakage or loss of control, resulting in personal injury.
ADDITIONAL SAFETY GUIDELINES FOR CORDLESS DRILL/DRIVER
• When working with the power tool, always hold it firmly with both hands and provide
for a secure stance. The power tool is guided more securely with both hands.
• Secure the workpiece. Clamping devices or a vise will hold the workpiece in place more
effectively than your hand can.
• Do not allow gasoline, oils, petroleum-based products, etc., to come in contact with
plastic parts. These materials contain chemicals that can damage, weaken, or destroy plastic.
• Always wait until the machine has come to a complete stop before placing it down.
The tool insert can jam and lead to loss of control over the power tool.
• Before performing any kind of work on the machine (e.g., maintenance, tool change,
etc.), or when transporting and storing the tool, always set the direction-of-rotation
switch to the centre (locked) position. Unintentional activation of the On/Off switch may
result in personal injury.

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SAFETY GUIDELINES
• Wear ear protectors when using the drill/driver. Exposure to noise can cause hearing loss.
• Use protective gloves when removing the bit from the tool, or first allow the bit to cool
down. The bit may be hot after prolonged use.
• Use protective gloves when operating the tool. Protective gloves can help to keep you from
being burnt or injured.
• Keep your hands away from the motor-housing vents. Hot gas comes from the vents
during operation.
• Release the trigger immediately when a screw is tightened to avoid breaking the
screw.
• The label on your tool may include the following symbols. The symbols and their
definitions are as follows:
V ..................... Volts
A ..................... Amperes
Hz ................... Hertz
W .................... Watts
min ................. Minutes
................. Alternating current
or d.c. .............. Direct current
n0 ................... No-load speed
............... Class II Construction
…/min ........... Revolutions or reciprocation per minute
............... Grounding terminal
BPM ............... Beats per minute
RPM ............... Revolutions per minute
.............. WARNING – To reduce the risk of injury, user must read instruction manual.
.............. WARNING – To reduce the risk of injury always wear eye protection.
.............. WARNING – To reduce the risk of injury always wear ear protection.
• Protect the battery from heat and fire. There is a risk of explosion.
• Do not open the battery. There is a risk of a short circuit.
• Keep the cord and charger from heat to prevent damage to the housing or internal
parts.

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SAFETY GUIDELINES
WARNING!
To reduce the risk of electric shock or damage to the charger and battery, use only the
Mastercraft®batteries and chargers listed.
BATTERY PACK CHARGER
054-3124-0
054-7553-4
054-7557-6
054-2434-8
054-3126-6
054-7559-2
• For best results, your battery tool should be stored and used in a location where the
temperature is more than 5°C (41°F) but less than 40°C (104°F). Do not store outside or
in vehicles.

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KEY PARTS DIAGRAM
WARNING!
• Remove the cordless drill/driver from the package, and examine it carefully. Do not discard the carton or
any packaging material until all parts have been examined.
• If any part of the cordless drill/driver is missing or damaged, do not attach the battery pack to the tool
or use the tool until the part has been repaired or replaced. Failure to heed this warning could result in
serious injury.
• Do not allow familiarity with the cordless drill/driver to cause a lack of alertness. A fraction of a second of
carelessness is enough to cause severe injury.
FPO
PACKAGE CONTENTS:
Cordless drill/driver, 2 screwdriver bits, 1 belt clip, 1 bit holder, and instruction manual
KEY PARTS DIAGRAM
No. Description No. Description
1 Two-speed gearbox switch 5 LED worklight
2 Torque-adjustment ring 6 Magnet
3 Keyless chuck 7 Direction-of-rotation selector
4 Trigger switch
Before attempting to use this tool, become familiar with all of its operating features and safety
requirements. For optimum performance and safety, read the following operating instructions carefully
before using.
1
2
3
4
5
6
7

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OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
TO ATTACH BATTERY PACK (fig 1)
1. Lock the trigger switch on the drill/driver by placing
the direction-of-rotation (forward/centre-lock/
reverse) selector in the centre position.
2. Align the raised portion on the battery pack with the
groove on the bottom of the drill/driver, and then
attach the battery pack to the drill/driver as shown.
3. Make sure that the latch on the battery pack snaps
into place and that the battery pack is secured to
the drill/ driver before beginning operation.
TO DETACH BATTERY PACK (fig 1)
1. Lock the trigger switch on the drill/driver by placing the direction-of-rotation selector (forward/centre-lock/reverse)
in the centre position.
2. Depress the battery-release button located on the front of the battery pack to release the battery pack.
3. Pull forward on the battery pack to remove it from the drill/driver.
NOTICE: When placing a battery pack on the tool, be sure that the raised rib on the battery pack aligns with the groove on the
cordless drill/driver and the latches snap into place properly. Improper assembly of the battery pack can cause damage to internal
components.
WARNING!
• Carefully read the Instruction Manuals for your Mastercraft®Rechargeable Battery (054-3124-0, 054-
7553-4, 054-2434-8, 054-7557-6) and Mastercraft®Battery Charger (054-3126-6, 054-7559-2) for safety
and operation instructions.
CAUTION!
• Avoid the possibility of accidental starting. Always take care not to activate the trigger switch when you are
attaching the battery pack or performing other adjustments to the tool.
• Avoid the possibility of accidental starting. Always take care not to activate the trigger switch when you are
detaching the battery pack or performing other adjustments to the tool.
FPO
fig 1
Battery-
release
button

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OPERATING INSTRUCTIONS
NOTE:
• To prevent gear damage, always allow the drill/driver to come to a complete stop before changing the direction of rotation.
• The drill/driver will not run unless the direction-of-rotation selector is engaged fully to the left or right.
TURN THE TOOL ON/OFF (fig 2)
To turn the drill/driver ON, depress the variable-
speed trigger switch. To turn it OFF, release the
variable-speed trigger switch.
VARIABLE SPEED (fig 2)
The variable-speed trigger switch delivers higher
speed with increased trigger pressure and lower
speed with decreased trigger pressure.
DIRECTION-OF-ROTATION SELECTOR
(FORWARD/CENTRE-LOCK/REVERSE)
(fig 2, 3)
The direction of rotation of the bit is reversible and is
controlled with a selector located above the trigger
switch. With the drill/driver held in normal operating
position:
Position the direction-of-rotation selector to the left
of the tool for forward rotation.
Position the direction-of-rotation selector to the right of the tool for reverse rotation.
Position the direction-of-rotation selector in the centre to lock the tool off.
fig 2
Direction-
of-rotation
selector
Variable-speed
trigger switch
fig 3
Forward Reverse

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LED WORKLIGHT (fig 4)
The LED worklight, located on the base of the
cordless drill/driver, will illuminate when the trigger
switch is depressed, and will automatically turn
off a while after the trigger switch is released.
This provides additional light on the surface of the
workpiece for operation in lower light situations.
ELECTRIC BRAKE
To stop the tool, release the trigger switch and allow
the chuck to come to a complete stop. The electric
brake quickly stops rotation. This feature engages
automatically when you release the trigger switch.
KEYLESS CHUCK (fig 5)
The arrows on the chuck indicate the direction of
rotation of the body of the chuck to: tighten or open
the jaws of the chuck on the drill bit.
INSTALL THE BIT HOLDER (fig 6)
1. Remove the battery from the tool.
2. Align the rib of the bit holder with the hole on the
base of the drill/driver.
3. Insert the screw (included) and tighten the screw
securely with a screwdriver (not included). The bit
holder can be positioned on either side of the tool.
REMOVE THE BIT HOLDER (fig 6)
1. Remove the battery from the tool.
2. Use a screwdriver (not included) to loosen the screw that attaches the bit holder to the drill/driver.
3. Remove the screw and the bit holder.
OPERATING INSTRUCTIONS
NOTICE: The worklight is for lighting the immediate work surface and is not intended to be used as a flashlight.
fig 4
LED
worklight
fig 5
Keyless
chuck
Open
Tighten
fig 6
Screw
Bit holder

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OPERATING INSTRUCTIONS
INSTALL THE BELT CLIP (fig 7 )
1. Remove the battery from the tool.
2. Align the rib of the clip with the hole on the base of
the drill/driver.
3. Insert the screw (included) and tighten the screw
securely with a screwdriver (not included). The belt
clip can be positioned on either side of the tool.
REMOVE THE BELT CLIP (fig 7)
1. Remove the battery from the tool.
2. Use a screwdriver (not included) to loosen the screw that attaches the
belt clip to the drill/driver.
3. Remove the screw and the belt clip.
TWO-SPEED GEAR BOX (fig 8)
This drill/driver features a two-speed gearbox that
is designed for drilling or driving at speed “1” (low
speed range) or at speed “2” (high speed range). A
slide switch is located on the top of the cordless drill/
driver to select either low or high speed.
When using the cordless drill/driver in the low speed
range, the cordless drill/ driver will have more power
and torque.
When using the cordless drill/driver in the high speed
range, the cordless drill/ driver will have less power
and torque.
Use low speed for high power and torque applications,
and use high speed for fast drilling applications.
fig 7
Screw
Belt clip
15
fig 8
Slide switch Low speed
High speed
CAUTION!
• Do not change between low speed and high speed while the tool is running. Failure to obey this caution
could result in serious damage to the cordless drill/driver.
FPO

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NOTICE:
• Do not change the torque setting when the tool is running.
• When adjusting the torque ring, make sure that the speed switch is either completely in the low or the high speed position.
OPERATING INSTRUCTIONS
MAGNET STORAGE ON TOP (fig 9)
The magnet on the top of the drill/driver allows for
convenient placement of screws and bits.
ADJUSTABLE TORQUE CLUTCH (fig 10)
The torque clutch can be adjusted to any of 24
different settings (23 driving and 1 drilling). The
higher the torque setting, the more force the
cordless drill/driver produces to turn an object in
either low or high rotation speed.
When using the cordless drill/driver for driving
applications, it is necessary to increase or decrease
the torque to help prevent damage to screw heads,
threads, and the workpiece. Adjust the torque by
rotating the torque-adjustment ring. The proper
setting depends on the job and the type of bit, fastener, and material you will be using.
In general, use greater torque for larger screws, but if the torque is too high, the screws may be
damaged or broken. For delicate operations, such as removing a partially stripped screw, use a low
torque setting.
15
fig 10 Torque-adjustment
ring
Arrow
15
fig 9
Magnet
Bit

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WARNING!
• Do not hold the body of the chuck with one hand while using the power of the drill/driver to tighten the
jaws of the chuck on the drill bit. The body of the chuck could slip in your hand, or your hand could slip and
come into contact with the rotating bit. This could cause an accident and result in serious personal injury.
• Be sure to insert the drill bit straight into the jaws of the chuck. Do not tighten the jaws of the chuck with
the drill bit inserted at an angle, as shown in fig 12. Doing so could cause the drill bit to be thrown from the
drill/driver, which could result in possibly serious personal injury or damage to the chuck.
• Use protective gloves when removing the bit from the tool, or first allow the bit to cool down. The bit may
be hot after prolonged use.
FPO
OPERATING INSTRUCTIONS
INSTALLING A BIT (fig 11, 12)
1. Lock the trigger switch by placing the direction-of-
rotation selector in the OFF (centre) position.
2. Rotate the chuck in the “RELEASE” direction to open
the jaws of the chuck.
3. Insert the drill bit. Be sure to insert the drill bit
straight into the chuck jaws.
4. Rotate the chuck in the “GRIP” direction to tighten
the jaws of the chuck securely on the bit.
REMOVING A BIT ( fig 11)
1. Lock the trigger switch by placing the direction-of-
rotation selector in the OFF (centre) position.
2. Open the jaws of the chuck (rotate in the “RELEASE”
direction.)
3. Remove the drill bit.
fig 12
fig 11
GRIP RELEASE

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GENERAL DRILLING (fig 13)
1. Check the direction-of-rotation selector for the
correct setting (forward or reverse).
2. Use a vise or clamps to secure the material to be
drilled to keep it from turning as the drill bit rotates.
3. Hold the cordless drill/driver firmly, and place the bit
at the point to be drilled.
4. Depress the trigger switch to start the cordless drill/
driver.
5. Move the drill bit into the workpiece, applying only
enough pressure to keep the bit rotating.
6. Do not force the cordless drill/driver or apply
sideways pressure to elongate a hole. Allow the tool
to do the work.
7. When drilling hard, smooth surfaces, use a centre
punch to mark the desired location of the hole. This
will prevent the drill bit from slipping off-centre when
the hole is started.
8. When drilling metal, use light oil on the drill bit to prevent it from overheating. The oil will prolong the life
of the bit and will increase the drilling efficiency.
9. If the bit jams in the workpiece, or if the drill/driver stalls, stop the tool immediately. Reverse the direction
of rotation and gently squeeze the trigger to remove the bit from the workpiece. Investigate and correct
the cause of jamming before resuming work.
WARNING!
• Always wear safety goggles or safety glasses with side shields during power tool operation or when
blowing dust. If the operation is dusty, also wear a dust mask.
• Be prepared for binding when the bit breaks through the workpiece, because the drill/driver has a tendency
to grab and kick opposite to the direction of rotation, which could cause a loss of control. If the operator is
not prepared, this loss of control could result in serious injury.
FPO
OPERATING INSTRUCTIONS
fig 13

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OPERATING INSTRUCTIONS
DRILLING MODE OPERATION
FOR DRILLING IN WOOD, USE TWIST BITS, SPADE BITS, POWER AUGER BITS OR HOLE SAWS.
1. When drilling “through” holes, place a block of wood behind the workpiece to prevent ragged or splintered edges
on the back side of the hole.
2. Select the desired speed range to match the planned operation.
3. Begin drilling at a very low speed to prevent the bit from slipping off of the starting point, and then increase the
speed as the drill bit bites into the material.
4. If the drill/driver stalls, it is usually because it is being overloaded. Release the trigger switch immediately, remove
the drill bit from the work, and determine the cause of stalling.
5. Keep the motor running when pulling the bit back out of the drilled hole. This will prevent jamming.
FOR DRILLING IN METAL, USE HIGH-SPEED, STEEL TWIST DRILL BITS.
1. Use light oil on the drill bit to keep it from overheating; the oil will prolong the life of the bit and increase the drilling
action.
2. When drilling a large hole, first use a smaller bit to drill a small pilot hole to prevent the larger bit from slipping.
3. Select the desired speed to match the planned operation.
4. Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Maintain a speed and
pressure that allows cutting without overheating the bit.
5. If the drill stalls, it is usually because it is being overloaded. Release the trigger switch immediately, remove the drill
bit from the work, and determine the cause of stalling.
6. Keep the motor running when pulling the bit back out of the drilled hole. This will prevent jamming.
SCREWDRIVER OPERATION
1. Select the desired speed/torque range to match the planned operation.
2. Attach the desired fastener accessory into the chuck.
3. Make a few practice runs in a scrap piece before working.

headline bars
continuation tabs
notes
warnings
headline bars
continuation tabs
notes
warnings
headline bars
continuation tabs
notes
warnings
model no. 054-7520-2 | contact us 1-800-689-9928
20
MAINTENANCE
WARNING!
• To avoid personal injury, always remove the battery pack from the tool when cleaning or performing any
maintenance.
• Do not let brake fluids, gasoline, petroleum-based products, penetrating oil, etc., come into contact with
plastic parts. These substances contain chemicals that can damage, weaken, or destroy plastic.
• The tool may be cleaned most effectively with compressed dry air. Always wear safety goggles when
cleaning tools with compressed air.
• When servicing, use only identical replacement parts. The use of any other parts may create a hazard or
cause damage to the product.
• Use only accessories that are recommended for this drill/driver by the manufacturer. Accessories that may
be suitable for one tool may become hazardous when used with another tool.
• To ensure safety and reliability, all repairs should be performed by a qualified service technician.
FPO
MAINTENANCE
BEFORE EACH USE:
1. Inspect the cordless drill/driver, the trigger switch, and the cord for damage.
2. Check for damaged, missing, or worn parts.
3. Check for loose screws, misalignment or binding of moving parts, or any other condition that may affect the
operation.
4. If abnormal vibration or noise occurs, turn the cordless drill/driver off immediately, and have the problem corrected
before further use.
CHUCK REMOVAL (fig 14)
The chuck can be removed and replaced with a
new one.
1. Remove the battery.
2. Lock the trigger switch by placing the direction- of-
rotation selector in the centre position.
3. Open the chuck jaws. Using a screwdriver, remove the
chuck screw by turning it clockwise.
4. Insert a 5/16” (8 mm) or larger hex key into the chuck of
the drill/driver and tighten the chuck jaws securely.
5. Tap the hex key sharply with a mallet in a
counter-clockwise direction. This will loosen the chuck
for easy removal.
6. Attach a new chuck to the spindle and tighten the chuck
screw.
fig 14 Mallet
Hex wrench
Chuck jaws