MasterCraft 054-3175-8 User manual

INSTRUCTION MANUAL
20V max* LITHIUM-ION
CORDLESS IMPACT DRIVER
054-3175-8

20V max* LITHIUM-ION CORDLESS IMPACT DRIVER - 054-3175-8
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20V max* LITHIUM-ION CORDLESS IMPACT DRIVER - 054-3175-8
TABLE OF CONTENTS
TECHNICAL SPECIFICATIONS 3
SAFETY GUIDELINES 4–8
DESCRIPTION 9
OPERATING INSTRUCTIONS 10–14
MAINTENANCE 15
TROUBLESHOOTING 16
PARTS LIST 17–18
WARRANTY 19–20
If any parts are
missing or damaged,
or if you have any
questions, please call
our toll-free helpline
at 1-800-689-9928.
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.
Keep this instruction manual for future use. Should
this product be passed on to a third party, then this
instruction manual must be included.

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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 Impact
Driver before using. 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 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 battery-
operated (cordless) power tool.
SAFETY GUIDELINES
MOTOR 20V DC
NO-LOAD SPEED 0–2500 RPM
IMPACT RATE 0–3200 BPM
COLLET CAPACITY Hex 1/4" (6.35 mm)
MAX. TORQUE 1400 in-lb
TOOL WEIGHT (WITHOUT BATTERY) 2 lb 12 oz (1.22 kg)
BATTERY TYPE Lithium-Ion
BATTERY VOLTAGE 20V max* DC
CHARGE INPUT 120V, 60 Hz AC only
OPTIMUM CHARGING TEMPERATURE 0–40°C (32–104°F)
*Maximum battery voltage without workload; with workload nominal voltage is 18V.
TECHNICAL SPECIFICATIONS

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• 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.
Battery tool use and care
• Rechargeonlywiththechargerspecied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specicallydesignatedbatterypacks.Use of any other battery
packs may create a risk of injury and fire.
SAFETY GUIDELINES
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
ammable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.
• 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inuence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.
SAFETY GUIDELINES

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…/min ........... Revolutions per minute
............... Grounding terminal
BPM ............... Beats per minute
.............. WARNING – To reduce the risk of injury, user must read instruction manual.
• Securetheworkpiece.Clamping devices or a vise will hold the workpiece in place better than the hand.
• Alwayswaituntilthetoolhascometoacompletestopbeforeplacingitdown. The tool insert
can jam, which can lead to loss of control.
• Alwayssettherotationaldirectionswitchtocentrepositionbeforeperforminganykindof
workonthemachine(e.g.,maintenance,toolchange,etc.)andwhentransportingandstoring
it. Unintentional activation of the On/Off switch may result in personal injury.
• Wearearprotectorswhenusingtheimpactdriver. Exposure to noise can cause hearing loss.
• Useprotectivegloveswhenremovingthebitfromthetool,orallowtheclamptocooldown
rst. 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 and hurt.
• Keepyourhandsawayfromthemotorhousingvents. Hot gas comes from the vents during
operation.
• Releasethetriggerimmediatelywhenthescrewistightenedtoavoidbreakingthescrew.
Contents:
Cordless impact driver, 2 single ended bits, nylon tote and instruction manual.
WARNING!
Remove the cordless impact driver from the package and examine it carefully. Do not
discard the carton or any packaging material until all parts have been examined.
WARNING!
If any part of the impact 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.
SAFETY GUIDELINES
• 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,ush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qualiedrepairpersonusingonlyidentical
replacementparts.This will ensure that the safety of the power tool is maintained.
Safety guidelines for cordless impact driver
• Toreducetheriskofelectricshockordamagetothechargerandbattery,useonlythe
batteriesandchargerlisted.
Batterypack Charger
054-3124-0 054-3126-6
054-3125-8
• Holdpowertoolsby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.
• Thelabelonyourtoolmayincludethefollowingsymbols.Thesymbolsandtheir
denitionsareasfollows:
V ..................... Volts
A ..................... Amperes
Hz ................... Hertz
W .................... Watts
min ................. Minutes
............... Alternating current
............. Direct current
n0 ................... No-load speed
............... Class II Construction
SAFETY GUIDELINES

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To attach the battery pack (fig 1)
WARNING!
To 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.
1. Lock the trigger switch on the impact driver
by placing the direction-of-rotation selector
(forward/centre lock/reverse) in the centre position.
2. Align the raised rib on the battery pack with the grooves of the impact driver, and then attach the
battery pack to the impact driver.
3. Make sure that the latch on the battery pack snaps into place, and that the battery pack is attached
securely to the tool before beginning operation.
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 impact driver and the latches snap into place properly. Improper
assembly of the battery pack can cause damage to internal components.
To detach the battery pack (fig 1)
1. Lock the trigger switch on the impact 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 the battery pack out and remove it from the tool.
Know your tool
1
2
4
3
6
5
No. Description No. Description
1 Sleeve 4 LED Worklight
2 Variable-speed Trigger Switch 5 Bit Clip
3 Direction-of-rotation Selector 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.
WARNING!
Do not allow familiarity with the Cordless impact driver to cause a lack of alertness. A
fraction of a second of carelessness is enough to cause severe injury.
DESCRIPTION
OPERATING INSTRUCTIONS
fig 1
Attach
Detach

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Electric brake
To stop the impact driver, release the trigger switch and allow the tool to come to a complete stop.
The electric brake quickly stops the rotation. This feature engages automatically when you release the
trigger switch.
LED worklight (fig 5)
The LED worklight, located on the base of the
impact driver, will illuminate when the trigger
switch is depressed. The LED worklight will turn
off when the trigger switch is released.
Bit storage (fig 6)
When not in use, a bit may be stored on either side
of the cordless impact driver by snapping it into
place in the bit clip.
Trigger switch (fig 2)
1. To turn the impact driver ON, depress the trigger
switch.
2. 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 2-4)
The direction of bit rotation is reversible, and is
controlled by a selector located above the trigger
switch. With the impact driver 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 driver will
shine green (fig 4).
Position the direction-of-rotation selector to the
right of the tool for reverse rotation. The forward/
reverse LED indicator on the impact driver will
shine red (fig 4).
Position the switch in the OFF (centre lock)
position helps reduce the possibility of accidental
starting when not in use.
NOTICE:To prevent gear damage, always allow the impact driver to come to a complete stop before
changing the direction of rotation.
NOTICE:The impact driver will not run unless the direction-of-rotation selector is engaged fully to the
left or right.
OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS
fig 3
Forward Reverse
fig 2
Direction-
of-Rotation
Selector
Variable-
Speed
Trigger
Switch
fig 5 LED Worklight
fig 6 Bits clip
fig 4
Green Red

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Tightening screws or nuts (fig 8)
1. Install the correct bit.
2. Apply just enough pressure to keep the bit
engaged on the screw or nut.
3. Position the direction-of-rotation selector to the
left of the tool for forward rotation.
4. Apply minimal pressure to the trigger switch
initially. Increase the speed only when full
control can be maintained.
WARNING!
Do not over-tighten, because the force of the impact driver can break the fastener. Keep
the impact driver pointed straight at the fastener to avoid damaging the fastener head.
NOTICE:Before starting your job, always perform a test operation to determine the proper fastening time.
Loosening screws and nuts (fig 9)
1. Install the correct bit.
2. Apply just enough pressure to keep the bit
engaged on the screw or nut.
3. Position the direction-of-rotation selector to the
right of the tool for reverse rotation.
4. Apply minimal pressure to the trigger switch
initially. Increase the speed only when full
control can be maintained.
Tightening torque
The fastening torque is affected by a wide variety of factors including the following. After fastening,
always check the torque with a torque wrench.
• Voltage:Low voltage, due to a nearly discharged battery, will reduce fastening torque.
• Socketsize:Failure to use the correct socket size will cause a reduction in fastening torque.
• BoltSize:Larger bolt diameters generally require higher fastening torque. Fastening torque will also
vary according to length, grade, and torque coefficient.
• Bolt:Ensure that all threads are free of rust and other debris to allow proper fastening torque.
• Material:The type of material and surface finish of the material will affect fastening torque.
OPERATING INSTRUCTIONS
Installing a driver bit or socket
bit (fig 7)
1. Lock the trigger switch by placing the direction-
of-rotation selector in the OFF (centre) position.
2. With one hand, pull the sleeve toward the front
of the tool, and hold it in place.
3. With the other hand, insert the 1/4" (6.35 mm)
bit into the hexagonal hole in the bit retainer.
4. Release the sleeve, and verify that it returns to
its original position.
WARNING!
If the sleeve does not return to its original position, the bit is not correctly installed. Retry
until the bit is properly installed.
WARNING!
Only use sockets designed for impact drivers. Sockets not designed for impact drivers
could break and result in user injury. Inspect sockets prior to use to ensure that they have
no cracks or other visible damage.
Removing a driver bit or socket bit (fig 7)
1. Lock the trigger switch by placing the direction-of rotation selector in the OFF (centre) position.
2. Pull the sleeve toward the front of the tool, and hold it in place.
3. Remove the bit from the hexagonal hole in the bit retainer.
4. Release the sleeve.
WARNING!
Use protective gloves when removing the bit from the tool, or allow the bit to cool down
first. The bit may be hot after prolonged use.
OPERATING INSTRUCTIONS
fig 8
fig 7
fig 9

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PROBLEM POSSIBLE CAUSES SOLUTIONS
The impact driver does
not work
The battery is depleted Charge the battery
The bit cannot be
installed
The sleeve is not released Release the sleeve
The bit does not fit the sleeve Use a suitable bit
The motor overheats Be sure the cooling vents are free
of dust and obstacles
Clean and clear vents. Do not
cover with hand during operation
WARNING!
Turn the trigger switch to the “OFF” (centre) position and remove the battery from the
power tool before performing troubleshooting procedures.
Iftheproblemremainsunsolvedafterperformingthechecksdescribedabove,callthetoll-
freehelplineat1-800-689-9928.
TROUBLESHOOTING
Beforeeachuse
1. Inspect the cordless impact driver, the trigger switch, and the battery pack 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 tool off immediately and have the problem corrected
before further use. Remove the battery from the power tool before cleaning or performing any
maintenance. Using compressed air may be the most effective cleaning method. Always wear safety
goggles when cleaning tools using compressed air.
WARNING!
Do not allow 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.
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 cordless impact driver 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.
MAINTENANCE

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PARTS LIST PARTS LIST
Exploded view No. PartNo. Description No. PartNo. Description
1 5660035000 Circlips For Shaft 23 3126562000 Rear Gear Housing
2 5650192000 Washer 24 5690007000 O Ring
3 5700178000 Steel Ball 25 5620037000 Screw
4 3660177000 Spring 26 5650007000 Spring Washer
5 3550606000 Bushing 27 3703951000 Bracket
6 5610106000 Tapping Screw 28 3520658000 Pinion
7 3126543000 Cover 29 2730195000 DC Motor
8 3421381000 Front Gear Housing 30 3126503000 Lens
9 3551807000 Spindle 31 4890709000 PCB Assembly
10 5700226000 Steel Ball 32 3321620000 Left Housing Assembly
11 3551809000 Impact Block 33 3680140000 Magnet Ring
12 5650430000 Washer 34 3126501000 F/R Button
13 3660528000 Compression Spring 35 4870452000 Trigger Switch
14 5690274000 Rubber Ring 36 3402385000 Contact Receptacle Assembly
15 5650163000 Spring Washer 37 4360225000 LED
16 3520657000 Planet Gear 38 3126500000 LED Cover
17 5670319000 Torque Pin 39 4860003000 Inner Wire
18 3551808000 Spindle 40 4920154000 Shrinkable Tube
19 5650429000 Washer 41 4920158000 Shrinkable Tube
20 3520656000 Ring Gear 42 3321616000 Right Housing Assembly
21 5690142000 O Ring 43 5610013000 Tapping Screw
22 5700179000 Bearing 44 3703673000 Bits Holder
Ifanypartsaremissingordamaged,orifyouhaveanyquestions,
pleasecalltheToll-freeHelpline,at1-800-689-9928.

20V max* LITHIUM-ION CORDLESS IMPACT DRIVER - 054-3175-820V max* LITHIUM-ION CORDLESS IMPACT DRIVER - 054-3175-8
19 20
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 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.
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
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:
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);
WARRANTY WARRANTY