20V max* Lithium-ion ComPACt CoRDLESS imPACt WREnCh

20V max* Lithium-ion ComPACt CoRDLESS imPACt WREnCh
INSTRUCTION MANUAL
20V max* Lithium-Ion
COMPACT CORDLESS IMPACT
WRENCH
054-3121-6
Read and understand this instruction manual
thoroughly before using the product. It contains
important information for your safety as well as
operating and maintenance advice.
TECHNICAL SPECIFICATIONS 3
SAFETY GUIDELINES 4–8
DESCRIPTION9
OPERATING INSTRUCTIONS
10–14
MAINTENANCE 15
TROUBLESHOOTING 16
PARTS LIST 17–18
WARRANTY 19–20
Keep this instruction manual for future use. Should
this product be passed on to a third party, then this
instruction manual must be included.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
TABLE OF CONTENTS
If any parts are
missing or damaged,
or if you have any
questions, please call
our toll-free helpline
at 1-800-689-9928.
2
MOTOR
20V DC
WARNING!
No-Load Speed 0–2500 RPM
0–3200 BPM
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.
Max. Torque 116 ft-lb
WARNING!
Drive
1/2" Square
Impact Wrench Weight (without battery) 2 lb 10 oz (1.2 kg)
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.
Battery Voltage
20V max* DC
Compatible Mastercraft 1.3 Ah Li-ion (054-3124-0)
Batteries2.6 Ah Li-ion (054-3125-8)
Compatible Mastercraft Charger
1-hour, diagnostic (054-3126-6)
*Maximum battery voltage without workload; with workload nominal voltage is 18V.
Know your tool
To operate this tool, carefully read this Instruction Manual and all labels affixed to the Cordless Impact
Wrench before using it. 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 and instructions. Failure to follow the warnings and instructions
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 batteryoperated (cordless) power tool.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
4
SAFETY GUIDELINES
TECHNICAL SPECIFICATIONS
3
Work area safety
SAFETY GUIDELINES
• Keep the 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.
• 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, clothing and gloves
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
that these are connected and properly used. Use of these devices can reduce dust-related hazards.
Electrical safety
Power tool use and care
• 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 the risk of electric shock.
• Do not force the power tool. Use the correct power tool for your application. The correct
power tool will do the job better and more safely at the rate for which it was designed.
• 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 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.
• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase
the risk of electric shock.
• Disconnect the plug from the power source and/or the battery pack 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.
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power
tool. Keep the cord away from heat, oil, sharp edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
• 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.
• 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.
• 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.
• If operating a power tool in a damp location is unavoidable, use a ground-fault circuit
interrupter (GFCI) protected supply. Use of a 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 the tool while 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 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.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
• 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, 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.
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.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
6
SAFETY GUIDELINES
5
8
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If
contact accidentally occurs, flush with water. If liquid contacts eyes, also seek medical
help. Liquid ejected from the battery may cause irritation or burns.
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.
• Place the tool onto the fastener only when the tool is switched off. Rotating wrench tools
can slide off of the fastener.
• Be careful when driving long screws. There is a risk of the impact wrench sliding off the
fastener head, depending on the type of socket or bit used. First test the run-down of a fastener and
pay attention during the driving process to ensure that you do not injure yourself if the tool bit or
socket slides off of the fastener.
• The label on your tool may include the following symbols. The symbols and their
definitions are as follows:
Safety guidelines for cordless impact wrench
V ..................... Volts
• Hold power tools by the insulated gripping surfaces when performing an operation where
the tool may contact hidden wiring or its own cord. Contact with a “live” wire may make
exposed metal parts of the power tool “live” and could give the operator an electric shock.
A ..................... Amperes
• Use clamps or another practical way to support and secure the workpiece to a stable
platform. Holding the work by hand or against your body is unstable and may lead to loss of control.
W .................... Watts
Hz ................... Hertz
min ................. Minutes
• Do not drill, fasten or break into existing walls or other blind areas where electrical wiring
may exist. If this situation is unavoidable, disconnect all fuses or circuit breakers feeding the worksite.
• Always wear safety goggles or eye protection when using this tool.
• Bits, sockets and tools get hot during operation. Wear gloves when touching them after use.
n0 ................... No-load speed
• Wear ear protectors when using the tool for extended periods. Prolonged exposure to high
intensity noise can cause hearing loss.
• Use thick, cushioned gloves and limit the exposure time by taking frequent rest periods.
Vibration caused by the impact wrench action may be harmful to your hands and arms.
• Secure the material being fastened. Never hold it in your hand or across your legs. Unstable
support can cause loss of control and injury.
• Avoid accidental starting. Be sure that the forward/centre-lock/reverse switch is in the “off”
(centre) position before inserting the battery pack. Carrying appliances with your finger on the switch
or inserting the battery pack into an appliance with the switch on invites accidents.
• Remove the battery pack before changing accessories. Accidental starting may occur because
battery appliances with a battery inserted are in the operative condition.
• Be prepared for a reaction torque when “seating” or removing a fastener. The tool housing
may tend to twist in the opposite direction of the bit rotation when “seating” or removing a fastener,
depending on the torque setting of the tool.
............... Alternating current
............. Direct current
............... Class II Construction
…/min ........... Revolutions per minute
............... Grounding terminal
BPM ............... Beats per minute
.............. WARNING – To reduce the risk of injury, user must read instruction manual.
Contents
Cordless Impact Wrench, Instruction Manual
WARNING!
Remove the Cordless Impact Wrench from the package, and examine it carefully. Do not
discard the carton or any packaging material until all parts have been examined.
• Do not use worn or damaged impact sockets and accessories. When installing an accessory,
insert the impact socket well onto the anvil. Be sure that the anvil has locked onto the socket correctly.
WARNING!
• Do not run the tool while carrying it at your side. A spinning bit could become entangled with
clothing and injury may result.
If any part of the Cordless Impact Wrench 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.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
SAFETY GUIDELINES
SAFETY GUIDELINES
7
6
WARNING!
Carefully read the Instruction Manuals for your Mastercraft 20V max Lithium-Ion Battery and
Mastercraft 20V max Lithium-Ion Charger for safety and operation instructions.
To attach battery pack (fig 1)
1
4
2
10
CAUTION!
fig 1
Battery-release button
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.
NOTE: 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 impact wrench and the latches snap into place properly. Improper assembly
of the battery pack can cause damage to internal components.
1.Lock the trigger switch on the cordless impact wrench by placing the direction-of-rotation selector
(forward/centre-lock/reverse) in the centre position.
3
5
No.
1
2
3
Description
1/2" Square Anvil
Trigger switch
LED worklight
No.
Description
4Direction-of-rotation selector
5
Bit clip
6
Forward/reverse LED indicator
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.
2.Align the raised portion on the battery pack with the groove on the bottom of the cordless impact wrench,
and then attach the battery pack to the cordless impact wrench as shown.
3.Make sure that the latch on the battery pack snaps into place and that the battery pack is secured to the
cordless impact wrench before beginning operation.
To detach battery pack (fig 1)
CAUTION!
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.
WARNING!
1.Lock the trigger switch on the cordless impact wrench by placing the direction-of-rotation selector
(forward/centre-lock/reverse) in the centre position.
Do not allow familiarity with the Cordless Impact Wrench to cause a lack of alertness. A
fraction of a second of carelessness is enough to cause severe injury.
2.Depress the battery-release button located on the front of the battery pack to release the battery pack.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
3.Pull forward on the battery pack to remove it from the cordless impact wrench.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
OPERATING INSTRUCTIONS
Know your cordless impact wrench
DESCRIPTION
9
OPERATING INSTRUCTIONS
ON/OFF Trigger switch (fig 2)
To turn the cordless impact wrench ON, depress
the trigger switch. To turn it OFF, release the 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)
Direction-of-rotation
selector
Position the direction-of-rotation selector to the
right of the tool for reverse rotation. The forward/
reverse LED indicator on the impact wrench will
shine red (fig 3b).
Variable speed
trigger switch
The LED worklight, located on the base of the
cordless impact wrench will illuminate when the
trigger switch is depressed. This provides additional
light on the surface of the workpiece for operation in
lower light situations. The LED worklight will turn off
when the trigger switch is released.
fig 4
LED Worklight
Electric brake
To stop the tool, release the trigger switch and allow
the anvil to come to a complete stop. The electric
brake quickly stops rotation. This feature engages
automatically when you release the trigger switch.
fig 3a
Forward
The direction-of-rotation is reversible and is
controlled with a selector located above the trigger
switch. With the cordless impact wrench held in
normal operating position:
Position the direction-of-rotation selector to the left
of the tool for forward rotation. The forward/reverse
LED indicator on the impact wrench will shine green
(fig 3b).
LED Worklight (fig 4)
fig 2
12
fig 5
Bit clip (fig 5)
Reverse
Bit clip
When not in use, a bit (available separately) may be
stored on either side of the cordless impact wrench
by snapping it into place in the bit clip.
Installing and removing a
socket (fig 6)
fig 3b
fig 6
1.Lock the trigger switch by placing the directionof-rotation selector in the OFF (centre) position.
Green
Position the direction-of-rotation selector in the
centre to lock the tool off.
NOTE: The cordless impact wrench will not run
unless the direction-of-rotation selector is engaged
fully to the left or right.
Red
2.To install a 1/2" socket (available separately),
simply push it completely onto the anvil. To
remove, pull it off of the anvil.
WARNING!
Bits, sockets and tools get hot during operation. Wear gloves when touching them after use.
WARNING!
Only use sockets designed for impact wrenches. Sockets not designed for impact wrenches
could break and result in user injury. Inspect sockets prior to use to ensure that they have no
cracks or other visible damage.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
OPERATING INSTRUCTIONS
11
14
Tightening fasteners
Loosening fasteners
1.Lock the trigger switch by placing the direction-of-rotation selector in the OFF (centre) position. Select a
hex socket (available separately) that matches the bolt or nut.
1.With the proper impact socket securely mounted to the cordless impact wrench, slide the impact socket
onto the bolt head.
2.Mount the socket on the anvil, and grip the bolt or nut to be tightened with the hex socket.
2.Verify that the rotational direction is “reverse.”
3.Holding the cordless impact wrench in line with the bolt or nut, press the trigger to impact the nut for
several seconds.
3.Hold the tool securely with both hands and squeeze the trigger switch. The tool will start to impact
immediately.
4.If the nut is only loosely fitted to the bolt, the bolt may turn with the nut. In this case, stop impact on the
nut and hold the bolt head with a hand wrench before restarting impact, or manually tighten the bolt and
nut to prevent them from slipping.
4.Once the fastener has “broken loose” it will start to unthread. Be careful that you do not allow a fastener
to spin freely once it is no longer engaged with the other threaded part, as it may be thrown out of the
socket.
Tightening torque
Installing or removing bits (fig 7)
The tightening torque depends on the duration of the impacting/tightening action.
1.Lock the trigger switch by placing the directionof-rotation selector in the OFF (centre) position.
The greatest tightening torque is achieved after approximately 3–5 seconds of impacting/tightening action.
The torque build-up depends on the following factors:
1.Hardness of the bolts/nuts.
2.Type of washer (disc washer, spring washer, seal).
3.Hardness of the materials to be joined.
4.Lubricating effect at the surface of the junction.
For example:
• A relatively short interval of impacting/tightening action is required when joining metal to metal with a
disc washer.
• A moderate interval of impacting/tightening action is required when joining metal to metal where a
spring-ring washer, disc-spring washer, stud bolt, or bolt/nut with conical seats are used.
2.To install or remove a 1/2" hex adaptor (available
separately), pull the back sleeve of the 1/2"
hex adaptor forward and press the hex adaptor
onto the square drive. Make sure that the steel
retention ball engages into the hole on the square
drive. To remove the hex adaptor, simply grip the
back sleeve and pull it off.
fig 7
Front sleeve
Steel retention ball
Back sleeve
3.To install the bit, pull the front sleeve forward, hold
it in place, insert a 1/2" bit into the hexagonal chuck, and then release the sleeve. Check that the sleeve
returns to its original position and the bit is securely held in place. To remove the bit, pull the front sleeve
forward and pull the bit off.
• A longer interval of impacting/tightening action is necessary to arrive at the maximum tightening torque
when joining metal to wood or insulation material.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
13
General maintenance
16
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
WARNING!
The cordless impact
wrench does not work.
The battery is depleted.
Charge the battery.
To avoid personal injury, always remove the battery pack from the tool when cleaning or
performing any maintenance.
The motor is overheating.
Be sure cooling vents are free from dust and
obstacles.
Clean, clear vents. Do not cover with hand
during operation.
WARNING!
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.
If the problem remains unsolved after performing the checks described above, call the ­toll‑free
helpline at 1-800-689-9928.
The tool may be cleaned most effectively with compressed dry air. Always wear safety
goggles when cleaning tools with compressed air. Before each use:
• Inspect the cordless impact wrench, the trigger switch, and the battery for damage.
• Check for damaged, missing, or worn parts.
• Check for loose screws, misalignment or binding of moving parts, or any other condition
that may affect the operation.
• If abnormal vibration or noise occurs, turn the cordless impact wrench off immediately, and
have the problem corrected before further use.
WARNING!
When servicing, use only identical replacement parts. The use of any other parts may create a
hazard or cause damage to the product.
WARNING!
Use only accessories that are recommended for this wrench by the manufacturer. Accessories
that may be suitable for one tool may become hazardous when used with another tool.
WARNING!
To ensure safety and reliability, all repairs should be performed by a qualified service
technician.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
TROUBLESHOOTING
MAINTENANCE
15
18
No. Part No.
Description
15610106000Tapping Screw
23126543000Cover
3 3421381000 Front Gear Housing
42823347000Spindle
5 5700226000 Steel Ball
6 3551809000 Impact Block
7 5700178000 Steel Ball
85650430000Washer
93660528000Compression Spring
105690274000 Rubber Ring
115650163000 Spring Washer
12 5670319000 Torque Pin 13 3520657000Planet Gear 14 3551808000 Spindle 15 3520656000 Ring Gear 16 5650429000 Washer 17 5690142000 O Ring
185700179000 Bearing 19 3126562000 Rear Gear Housing 20 5690007000 O Ring
No. Part No.
Description
21
5620037000Screw
22
5650007000Spring Washer
23 3703951000 Bracket
24
3520658000Pinion
25 2730195000DC Motor
26 3126501000 F/R Button
27 4870452000 Trigger Switch
28
3680140000Magnet Ring
29
4860007000Inner Wire
304860003000 Inner Wire
314360225000 LED
32 3402385000 Contact Receptacle Assembly
33 3321620000 Left Housing Assembly
34 3703673000 Bits Holder
35 3126500000 LED Cover
36 3321616000 Right Housing Assembly
37 5610013000 Tapping Screw
383126503000 Lens
39 4890709000PCB Assembly
If the problem remains unsolved after performing the checks described above, call the ­toll‑free
helpline at 1-800-689-9928.
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
PARTS LIST
Exploded view
PARTS LIST
17
19
20
g)this warranty will not apply to any product or part thereof if any part from another manufacturer is
installed therein or any repairs or alterations have been made or attempted by unauthorized persons;
h)this warranty will not apply to normal deterioration of the exterior finish, such as, but not limited
to, scratches, dents, paint chips, or to any corrosion or discolouring by heat, abrasive and chemical
cleaners; and
i) this warranty will not apply to component parts sold by and identified as the product of another
company, which shall be covered under the product manufacturer’s warranty, if any.
This Mastercraft product is guaranteed three (3) years from the date of original retail purchase
against defects in materials and workmanship, except for the following components:
a)Component A: Batteries, chargers and carrying case, which are guaranteed for a period of 2 years
from the date of original retail purchase against defects in workmanship and materials;
b)Component B: Accessories, which are guaranteed for a period of 1-year from the date of original
retail purchase against defects in workmanship and materials.
Subject to the conditions and limitations described below, this product, if returned to us with proof
of purchase within the stated warranty period and if covered under this warranty, will be repaired or
replaced (with the same model, or one of equal value or specification), at our option. We will bear the
cost of any repair or replacement and any costs of labour relating thereto.
These warranties are subject to the following conditions and
limitations:
Additional limitations
This warranty applies only to the original purchaser and may not be transferred. Neither the retailer
nor the manufacturer shall be liable for any other expense, loss or damage, including, without
limitation, any indirect, incidental, consequential or exemplary damages arising in connection with the
sale, use or inability to use this product.
Notice to consumer
This warranty gives you specific legal rights, and you may have other rights, which may vary from province to
province. The provisions contained in this warranty are not intended to limit, modify, take away from, disclaim
or exclude any statutory warranties set forth in any applicable provincial or federal legislation.
IMPORTED BY MASTERCRAFT CANADA TORONTO, CANADA M4S 2B8
a)a bill of sale verifying the purchase and purchase date must be provided;
b)this warranty will not apply to any product or part thereof which is worn or broken or which has
become inoperative due to abuse, misuse, accidental damage, neglect or lack of proper installation,
operation or maintenance (as outlined in the applicable owner’s manual or operating instructions) or
which is being used for industrial, professional, commercial or rental purposes;
c)this warranty will not apply to normal wear and tear or to expendable parts or accessories that
may be supplied with the product which are expected to become inoperative or unusable after a
reasonable period of use;
d)this warranty will not apply to routine maintenance and consumable items such as, but not limited to,
fuel, lubricants, vacuum bags, blades, belts, sandpaper, bits, fluids, tune-ups or adjustments;
e)this warranty will not apply where damage is caused by repairs made or attempted by others (i.e.
persons not authorized by the manufacturer);
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
20V max* Lithium-Ion Compact Cordless Impact Wrench - 054-3121-6
WARRANTY
WARRANTY
f) this warranty will not apply to any product that was sold to the original purchaser as a reconditioned
or refurbished product (unless otherwise specified in writing);
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