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INSTRUCTION
MANUAL
IMPORTANT:
Read and understand this instruction manual
thoroughly before using the product.
model no. 054-1264-8
IMPACT WRENCH
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3
TABLE OF CONTENTS
Technical Specifications 4
Safety Guidelines 5–8
Key Parts Diagram 9
Important Information 10
Assembly Instructions 11
Operating Instructions 12–14
Maintenance 15
Troubleshooting 16
Part list 17–18
Warranty 19–20
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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model no. 054-1264-8 | contact us 1.800.689.9928
TECHNICAL SPECIFICATIONS
No-load Speed 2100 RPM
Impacts per minute 2700 BPM
Maximum fastening torque 350 ft-lb
Rated voltage 120 V~, 60 Hz
Rated power input 8A
Capacity (Standard bolt) M12–M20 1/2–3/4" (12.7–19.1 mm)
1/2–5/8" (12.7–15.9 mm)
Capacity (High-tensile bolt) M12–M16 (1/2"–5/8")
(12.7 mm–15.9 mm)
Socket Size 1/2" (12.7 mm)
Weight 7 lbs 6 oz (3.3 kg)
RULES FOR SAFE OPERATION
KNOW YOUR TOOL
To operate this tool, carefully read this Instruction Manual and all labels affixed
to the impact wrench. Keep this 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 CAREFULLY
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 battery-operated (cordless) power tool.
WORK AREA SAFETY
• 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.
ELECTRICAL SAFETY
• 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.
• 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 the cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk of electric shock.
SAFETY GUIDELINES
TECHNICAL SPECIFICATIONS
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• 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 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.
• 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.
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 more safely 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 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.
• 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. 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, 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.
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.
SAFETY GUIDELINES FOR IMPACT WRENCH
• Hold the tool by insulated gripping surfaces when performing an operation
where the cutting tool may contact hidden wiring or its own cord. A cutting
accessory contacting a “live” wire may make exposed metal parts of the power
tool “live” and could give the operator an electric shock.
• Check the socket carefully for wear, cracks or damage before installation.
• Hold the tool firmly with both hands.
• Always be sure you have a firm footing. Be sure no one is below you when
using the tool in high locations.
• Check the torque with a torque wrench. The proper fastening torque may
differ depending on the type or size of the bolt.
ADDITIONAL SAFETY INSTRUCTIONS FOR OPERATION
• Know your power tool. Read the Instruction Manual carefully. Learn the
applications and the specific potential hazards related to this tool. Following
this rule will reduce the risk of electric shock, fire or serious injury.
• Protect your hearing. Wear appropriate personal hearing protection during use.
Under some conditions, noise from this product may contribute to hearing loss.
• All visitors and bystanders must wear the same safety equipment as the
operator.
• Inspect the tool cords periodically, and if damaged, have them repaired by a
qualified service technician. Be aware of the cord location.
SAFETY GUIDELINES
SAFETY GUIDELINES
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PACKAGE CONTENTS
Impact Wrench and Instruction Manual
2
1
NO. PART NO. PART
1 Anvil 2 Forward/reverse switch
• Save these instructions. Refer to them frequently, and use them to instruct
others who may use this tool. If someone borrows this tool, make sure they
have these instructions also.
• 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
............. Direct current
n
0
................... No-load speed
............... Class II Construction
…/min ........... Revolutions or reciprocation per minute
............... Grounding terminal
BPM ............... Beats per minute
.............. WARNING – To reduce the risk of injury, user must read
instruction manual.
SAFETY GUIDELINES
KEY PARTS DIAGRAM
WARNING!
• Remove the impact wrench 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 impact wrench is missing or damaged, do not plug
the tool in or use it until the part has been repaired or replaced.
Failure to heed this warning could result in serious injury.
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IMPORTANT INFORMATION
Before attempting to use this impact wrench, become familiar with all of its
operating features and safety requirements. For optimum performance and
safety, read the following operating instructions carefully before using the
impact wrench.
ASSEMBLY INSTRUCTIONS
SELECTING THE CORRECT SOCKET (AVAILABLE SEPARATELY)
Always use the correct size socket for bolts and nuts. An incorrect socket will
result in inaccurate and inconsistent fastening torque and/or damage to the bolt
or nut.
INSTALLING AND REMOVING THE
SOCKET (g1)
To install the socket, push it onto the
anvil of the tool until it locks into place.
To remove the socket, simply pull it off.
CAUTION!
• Always verify that the tool is switched off and unplugged before
installing any accessories on the tool.
IMPORTANT INFORMATION
ASSEMBLY INSTRUCTIONS
WARNING!
• Do not allow familiarity with the impact wrench to cause a lack
of alertness. A fraction of a second of carelessness is enough to
cause severe injury.
g1
Socket
Anvil
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OPERATING INSTRUCTIONS
TURNING ON AND TURNING OFF(g2)
1. Connect the power cord of your impact
wrench to a standard household power
outlet.
2. Press the part of the switch marked F
to run the tool in the forward direction
(clockwise rotation).
3. Press the part of the switch marked
R to reverse the motor direction
(counter-clockwise rotation).
4. Release the switch to stop the tool.
INSTALLING FASTENERS
To fasten:
1. Start threading the fastener by hand onto or into its threaded counterpart
(e.g. nut onto bolt, or bolt into nut or threaded hole).
2. With the proper impact socket securely mounted to the wrench, slide the
impact socket onto the nut or bolt head.
3. Place the direction-of-rotation selector in the FORWARD position, firmly hold
the tool and depress the switch. The impact socket will turn the fastener and
impacting will begin once the fastener encounters resistance.
To loosen:
1. With the proper impact socket securely mounted to the wrench, slide the
impact socket onto the bolt head.
2. Place the direction- of-rotation selector in the REVERSE position, firmly hold
the tool and depress the switch. The tool will start to impact immediately.
3. 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 its
threaded counterpart, as it may be thrown out of the socket.
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
CAUTION!
• Always verify that the tool is switched off and unplugged before
installing any accessories on the tool.
CAUTION!
• Do not allow familiarity with your impact wrench to make you
careless. Remember that a careless fraction of a second is sufficient
to cause severe injury.
g2
Switch
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IMPACTING TIPS
The proper fastening torque may differ depending on the type or size of the
bolt, the material of the workpiece to be fastened, etc.
Hold the tool firmly, and place the socket over the bolt or nut. Turn the tool on,
and fasten the bolt or nut to the proper torque.
Practice with various fasteners, noting the length of time required to reach the
desired torque. Check the tightness with a hand torque wrench. If the fasteners
are too tight, reduce the impacting time. If they are not tight enough, increase
the impacting time. The torque that is required to loosen a fastener averages
75% to 80% of the tightening torque, depending on the condition of the
contacting surfaces. However, if rust or corrosion causes seizing, more torque
may be required.
After fastening, always check the torque with a torque wrench. The fastening
torque is affected by a wide variety of factors, including the following:
1. Voltage
•A voltage reduction will cause a reduction in the fastening torque.
2. Socket
•Failure to use the correct size socket will cause a reduction in the fastening
torque.
•A worn socket (wear on the hex end or square end) will cause a reduction in
the fastening torque.
3. Bolt
•Although the torque coefficient and the class of bolt may be the same, the
proper fastening torque will differ according to the diameter of the bolt.
•Although the diameters of bolts are the same, the proper fastening torque
will differ according to the torque coefficient, the class of bolt and the bolt
length.
4. The use of a universal joint or an extension bar (both available separately) will
reduce the fastening force of the impact wrench somewhat. Compensate by
fastening for a longer period of time.
5. The manner of holding the tool or the material to be fastened will affect the
torque.
MAINTENANCE
BEFORE EACH USE:
•Inspect the impact wrench, the switch, and the cord 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 impact wrench off immediately,
and have the problem corrected before further use.
•Using compressed air may be the most effective cleaning method. Always wear
safety goggles when cleaning tools using compressed air.
OPERATING INSTRUCTIONS
MAINTENANCE
NOTE:
•Hold the tool straight along the axis of the bolt or nut.
•Excessive fastening torque may damage the bolt/nut or socket. Before
starting your job, always perform a test operation to determine the proper
fastening time for your bolt or nut.
WARNING!
• To ensure safety and reliability, all repairs should be performed
by a qualified service technician.
• When servicing, use only identical replacement parts. The use
of any other parts may create a hazard or cause damage to the
product.
• Unplug the impact wrench from the power source before
cleaning or performing any maintenance.
• Do not allow brake fluids, gasoline, petroleum-based products,
penetrating oil, etc. to come into contact with plastic parts.
These substances contain chemicals that can damage, weaken,
or destroy plastic.
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TROUBLESHOOTING
Problem Cause of the Problem
Suggested Corrective
Action
The impact wrench does
not work
The impact wrench is not
plugged into a power
source
Plug the wrench into
an appropriate power
source
Socket cannot be
installed
Improper socket
selection
Use a suitable socket
The motor is overheating Cooling vents may be
obstructed by dust or
other obstacles
Clean and clear vents.
Do not cover with hand
during operation
If the problem remains unsolved after performing the checks described above,
call the toll-free helpline, at 1-800-689-9928.
EXPLODED VIEW
PART LIST
TROUBLESHOOTING
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No. Part No. Description No. Part No. Description
1 5610100000
Tapping
Screw
26 3123738000 Bearing Holder
2 3125144000 Cover 27 3125145000 Fan Baffle
3 3421042000
Front Gear
Housing
28 5610048000 Tapping Screw
4 5690208000 O-Ring 29 5650007000 Spring Washer
5 3551518000 Bushing 30 5650005000 Plain Washer
6 5650351000 Washer 31 2740283000 Stator
7 2822873000 Spindle 32 2800164000 Brush Holder
8 5700217000 Steel Ball 33 4960260000 Carbon Brush
9 3551371000 Impact Block 34 3660271000 Spiral Spring
10 5700045000 Steel Ball 35 3320975000 Motor Housing
11 5650312000 Washer 36 5610006000 Tapping Screw
12 3660413000 Spring 37 4930400000 Terminal
13 3551440000 Gear 38 4930030000 Receptacle
14 3551372000 Spindle 39 4930094000 Sleeve
15 5650187000 Washer 40 3320974000 Rear Cover
16 5700028000
Needle
Bearing
41 5610042000 Tapping Screw
17 3551470000 Gear 42 3125146000 Handle
18 3704670000 Gasket 43 4870417000 Rocker Switch
19 5670258000 Pin 44 4930047000 Ring Terminal
20 5700211000
Oil
Impregnated
Bearing
45 4930432000 Connector
21 3421041000
Rear Gear
Housing
46 5610093000 Tapping Screw
22 5690213000 Rubber Ring 47 3700314000 Cord Anchor
23 5700014000 Ball Bearing 48 3121028000 Cord Guard
24 2750905000 Rotor 49 4810002000
Power Cord &
Plug
25 5700008000 Ball Bearing 50 4860004000 Inner Wire
If the problem remains unsolved after performing the checks described above,
call the toll-free helpline, at 1-800-689-9928.
5-YEAR LIMITED WARRANTY
This Mastercraft Maximum product is guaranteed against defects
in workmanship and materials for a period of 5 years from the
date of original retail purchase, with the exception of the following
components:
a) Component A: Batteries, chargers and carrying case, which are
guaranteed against defects in workmanship and materials for a
period of 2 years from the date of original retail purchase;
b) Component B: Accessories, which are guaranteed against
defects in workmanship and materials for a period of 1 year
from the date of original retail purchase.
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 labour costs relating thereto.
This warranty is subject to the following conditions and limitations:
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 that is worn or
broken, or that 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 that 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 and that 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,
including 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);
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);
g) This warranty will not apply to any product or part thereof if any part from
another manufacturer is installed therein or if 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,
including but not limited to scratches, dents, paint chips, or to any corrosion
or discolouring by heat, abrasive and chemical cleaners; and
PART LIST
WARRANTY
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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.
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 but not limited to 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
WARRANTY
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