MasterCraft 054-3165-2 User manual

18 V NI-CD CORDLESS IMPACT WRENCH
054-3165-2
Owner’s Manual
Imported by Mastercraft Canada Toronto, Canada M4S 2B8
PRODUCT SPECIFICATIONS
Battery:
18 V, 1.7 Ah Ni-Cd
Speed:
0–2,200 RPM (no load)
Impact speed:
0–2,900 BPM
Torque:
200 ft/lbs (maximum)
Square drive:
1/2"
Charger:
1 hour diagnostic, Class 2
Charger input:
120 V AC, 60 Hz
Charger output:
18 V DC, 2.2 A
Replacement battery:
054-3168-6 Ni-Cd
Weight:
3 lb 13 oz (1.73 kg) without battery
Need Assistance?
Call us on our toll free customer support line:
1-800-689-9928
Technical questions
Replacement parts
Parts missing from package

2
Product specifications ………….………………………………………………………………...
1
Table of contents ……………………………………………………………………..................
2
General safety warnings …………………………………………………………………………
3–4
Eye, ear & lung protection ……………………………………………………………………….
3–4
Electrical safety …………………………………………………………………………………...
4
Power tool safety ……………………………………………………………………..................
5–6
General safety rules ……………………………………………………………………………...
5
Work area ………………………………………………………………….……………………...
5
Electrical safety …………………………………………………………………………………...
5
Personal safety …………………………………………………………………………………...
5–6
Power tool use and care .………………………………………………………………………..
6
Battery tool use and care ………………………………………………………………………..
6
Service …………………………………………………………………………………………….
6
Specific safety rules ……………………………………………………………………………...
7
Battery & charger safety ………………………………………………………….……………...
8
Battery pack recycling ……………………………………………………………………………
8
Symbols ……………………………………………………………………………………………
9
Know your cordless impact wrench …………………………………………………………….
10
Assembly and operating …………………………………………………………………………
11–16
Charging the battery pack ……………………………………………………………………….
11
Checking the battery charge status …………………………………………………………….
11
Installing a battery pack in the impact wrench ………………………………………………...
12
Installing impact sockets …………………………………………………………………………
12
Forward/reverse switch ………………………………………………………………………….
12
Variable-speed trigger switch …………………………………………………………………...
13
Removing fasteners ……………………………………………………………………………...
13–14
Maintenance ………………………………………………………………………………………
15–16
General maintenance …………………………………………………………………………….
15
Lubrication ………………………………………………………………………………………...
15
Battery pack removal and preparation for recycling ………………………………………….
15
Nickel-Cadmium battery maintenance ………………………………………………………...
16
How to exercise a Nickel-Cadmium battery …………………………………………………..
16
Exploded view …………………………………………………………………………………….
17
Parts list ……………………………………………………………………………………………
18
Warranty ……………………………………………………………………….………………….
19–20
TABLE OF CONTENTS

3
EYE, EAR & LUNG PROTECTION
This instruction manual includes the following:
General Safety Rules
Specific Safety Rules and Symbols
Functional Description
Assembly
Operation
Maintenance
Accessories
!
ALWAYS WEAR EYE PROTECTION THAT CONFORMS WITH CSA
REQUIREMENTS or ANSI SAFETY STANDARD Z87.1
FLYING DEBRIS can cause permanent eye damage. Prescription
eyeglasses ARE NOT a replacement for proper eye protection.
WARNING: Non-compliant eyewear can cause serious injury if
broken during the operation of a power tool.
WARNING: Use hearing protection, particularly during extended
periods of operation of the tool, or if the operation is noisy.
!
GENERAL SAFETY WARNINGS
WARNING: Before using this tool or any of its accessories, read this
manual and follow all Safety Rules and Operating Instructions. The important
precautions, safeguards and instructions appearing in this manual are not
meant to cover all possible situations. It must be understood that common
sense and caution are factors which cannot be built into the product.
!
SAVE THESE INSTRUCTIONS FOR REFERENCE

4
ELECTRICAL SAFETY
GENERAL SAFETY WARNINGS
WEAR A DUST MASK THAT IS DESIGNED TO BE USED WHEN
OPERATING A POWER TOOL IN A DUSTY ENVIRONMENT.
WARNING: Dust that is created by power sanding, sawing, grinding,
drilling, and other construction activities may contain chemicals that are
known to cause cancer, birth defects, or other genetic abnormalities. These
chemicals include:
Lead from lead-based paints
Crystalline silica from bricks, cement, and other masonry products
Arsenic and chromium from chemically treated lumber
The level of risk from exposure to these chemicals varies, according to how
often this type of work is performed. In order to reduce exposure to these
chemicals, work in a well-ventilated area, and use approved safety
equipment, such as a dust mask that is specifically designed to filter out
microscopic particles.
!
WARNING: To avoid electrical hazards, fire hazards or damage to the
tool, use proper circuit protection.
This tool is wired at the factory for 120 V AC operation. It must be
connected to a 120 V AC, 15 A circuit that is protected by a time-delayed
fuse or circuit breaker. To avoid shock or fire, replace power cord
immediately if it is worn, cut or damaged in any way.
SAVE THESE INSTRUCTIONS FOR REFERENCE

5
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.
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.
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 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 residual current device
(RCD) protected supply. Use of a ground fault
circuit interrupter (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 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 energizing 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 jewelry. Keep your hair, clothing and
gloves away from moving parts. Loose
clothes, jewelry 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.
POWER TOOL SAFETY
!

6
PERSONAL SAFETY –cont’d
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 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 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.
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.
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.
POWER TOOL SAFETY

7
WARNING: Know your cordless impact
wrench. Do not plug in the charger or install
the battery in the tool until you have read
and understand this Instruction Manual.
Learn the tool’s applications and limitations,
as well as the specific potential hazards
related to this tool. Following this rule will
reduce the risk of electric shock, fire, or serious
injury.
Always wear eye protection. Any
power tool can throw foreign
objects into your eyes and cause
permanent eye damage.
ALWAYS wear safety goggles (not glasses) that
comply with ANSI safety standard Z87.1.
Everyday glasses have only impact resistant
lenses. They ARE NOT safety glasses.
WARNING: Glasses or goggles not in
compliance with ANSI Z87.1 could cause
serious injury when they break.
Always use hearing protection when operating
the impact wench.
Use only impact sockets and accessories that
are designed for use with an impact wrench. Do
not use chrome plated sockets and accessories.
Chrome plated sockets and accessories are
designed for hand use only and MUST NOT be
used with an impact wrench. They may shatter
and possibly cause serious injury.
Before each use, check the impact sockets and
accessories for excessive wear or cracks. Worn
or damaged sockets or accessories may shatter
and possibly cause serious injury. Worn
accessories may allow the socket to come off
during operation of the impact wrench.
After installing any accessory in the hex drive,
pull outward on the accessory to ensure it is
properly installed and cannot be pulled out of
the hex drive.
Never use the impact wrench as a torque
wrench. Always use a torque wrench to adjust
the fastener to the specified torque.
Keep the impact wrench handle and body clean
and free of oil and grease. Always use a clean
dry cloth when cleaning. Do not use solvents,
brake fluid, gasoline or other petroleum products
to clean the tool. They will damage the tool.
Do not wear neckties or loose clothing.
When wearing gloves, they must be tight fitting
and slip resistant type. Leather gloves offer the
best protection.
Always use two hands when operating the
impact wrench. Use one hand on the handle
and the other on the front of the tool body.
Never place your hand so it is touching the
socket or accessory when the tool is turned ON.
Your hand could be seriously injured.
Always remove the battery from the tool before
installing or removing any socket or accessory.
Be ready for components to shift when removing
any fastener. The speed of the fastener removal
could cause unexpected shifting of the
components.
SPECIFIC SAFETY RULES
!
!

8
WARNING: Only use the charger
supplied with this kit to charge the 18V
battery. Charging any other batteries may
damage the charger and possibly cause
serious injury.
Do not store or carry the battery in a manner in
which metal objects could contact the exposed
metal end. Do not place the battery in aprons,
pockets, drawers, etc. with loose nails, screws,
keys etc. The battery could short circuit causing
a fire, personal injury or damage to the battery.
Never attempt to open the battery for any
reason. If the housing of the battery breaks or
cracks, immediately discontinue use and do not
recharge.
Do not charge the battery if it is wet or shows
any evidence of corrosion.
A small leakage from the battery may occur
under extreme usage, charging or temperature
conditions. This does not indicate a failure.
However, if the outer seal is broken and this
leakage gets on your skin, follow these steps:
1. Wash immediately with soap and water.
2. Neutralize with a mild acid such as lemon
juice or vinegar.
3. If liquid gets into your eyes, flush
immediately with clean water for a
minimum of 10 minutes and seek medical
attention.
NOTE: The battery liquid is slightly acidic.
Do not incinerate the battery. It can explode in a
fire.
Do not use an extension cord. Plug the charger
cord directly into an electrical outlet.
Use the charger only in a standard
120V, 60 Hz electrical outlet.
Do not use the charger in wet or damp
conditions. It is intended for indoor use only. Do
not use the charger near sinks or
tubs. Do not immerse the charger in water.
Do not allow the cord to hang over the edge of a
table or counter or touch hot surfaces. The
charger should be placed away from sinks and
hot surfaces.
Do not use the charger to charge any batteries
other than the cordless impact wrench batteries.
Other batteries may explode.
Do not operate charger if the cord or plug is
damaged. Replace the damaged cord and plug
immediately.
Do not operate the charger if it has received a
sharp blow, been dropped or otherwise
damaged in any way. Have a qualified
technician examine the charger and repair it if
necessary. Do not disassemble the charger.
Do NOT charge the batteries when the work
area or the battery temperature is at or below 0°
C (32° F) or above
45° C (113° F).
Unplug the charger when not in use and before
cleaning or maintenance.
BATTERY PACK RECYCLING
To preserve our natural resources, please
recycle or dispose of batteries properly.
The batteries charged by this charger may
contain chemicals and metals that are harmful
to the environment. Never dispose of re-
chargeable batteries in your normal household
garbage or in landfill sites as they will add to the
pollution of the environment.
Please call 1-800-822-8837 for the location of
your nearest RBRC battery recycling location.
BATTERY & CHARGER SAFETY
SAVE THESE INSTRUCTIONS FOR REFERENCE
!

9
This symbol designates that this tool is listed
with Canadian requirements by
ETL Testing Laboratories, Inc.
Conforms to UL Std. 60745-1, and
60745-2-2. Certified to CAN/CSA Std. C22.2
No. 60745-1, and 60745-2-2.
3042597
JD5077
LISTED
V
Volts
A
Amperes
Hz
Hertz
W
Watts
kW
Kilowatts
Microfarads
L
Liters
kg
Kilograms
H
Hours
N/cm2
Newtons per square
centimeter
Pa
Pascals
OPM
Oscillations per minute
Min
Minutes
S
Seconds
or a.c.
Alternating current
Three-phase alternating
current
Three-phase alternating
current with neutral
Direct current
No load speed
Alternating or direct
current
Class II construction
Splash-proof
construction
Watertight construction
Protective grounding at
grounding terminal,
Class I tools
Revolutions or
reciprocations per
minute
Diameter
Off position
Arrow
Warning symbol
Wear your safety
glasses
SYMBOLS
WARNING: Some of the following symbols may appear on the cordless impact
wrench. Study these symbols and learn their meaning. Proper interpretation of these
symbols will allow for more efficient and safer operation of this tool.
!

10
KNOW YOUR CORDLESS IMPACT WRENCH
Forward /
reverse switch
Battery
#054-3168-6
Battery charge
test button
Battery charge
indicator LED’s
Battery charger
Red
LED
Green
LED
1/2"
square drive
Air vents
Variable speed
trigger switch

11
CHARGING THE BATTERY PACK
1. Place the battery charger (1) in a dry
location near a 120 V 60 Hz electrical
outlet (Fig. 1)
2. Turn the battery pack up side down and
slide it onto the charger (2).
NOTE: Make sure the battery pack is fully
engaged with the charger.
3. Plug the battery charger into the 120 V 60
Hz wall receptacle.
NOTES:
a) The GREEN indicator light (3) will turn ON
indicating the charger is "live" when the charger
is plugged into the power source.
b) If green indicator light does not come ON,
check to make sure battery pack is fully
engaged with the charger and the electrical
outlet is working properly.
c) When the discharged battery pack is placed
on the charger the green light will turn OFF and
the RED light (4) will begin to flash, indicating
that the battery pack is being charged.
d) A new battery pack or one that is completely
run down should be charged for 3 hours. After
normal use, a battery pack should be fully
charged in about 1 hour.
e) When the battery pack is fully charged, the
red LED will turn OFF and the green LED will
turn ON.
f) It is normal for the battery charger to hum and
be warm to the touch during operation.
g) If the battery pack does not charge properly,
check to make sure the electrical outlet is "live".
h) The battery pack should only be charged in
an area where the temperature is between
32–113°F (0–45°C).
WARNING: Do NOT leave the charger
plugged in for longer than 5 hours. The
battery will be fully charged within 5 hours.
Leaving the charger plugged in for longer
than 5 hours may damage the battery and
void the warranty.
CHECKING THE BATTERY CHARGE STATUS
The level of charge remaining in the battery can
be checked by using the battery charge
indicator LED’s that are contained in the front
end of the battery.
NOTE: The battery charge remaining may be
checked while the battery is installed in the tool
with the ON/OFF switch turned OFF. It may also
be checked while the battery is removed from
the tool. DO NOT check the battery charge
remaining while the battery is in the charger.
You will get a false reading and you may also
damage the battery status system.
1. Press and hold the battery status button (1)
located in the end of the battery (Fig. 2).
2. One or more of the three LED lights will
come ON to indicate the amount of charge
that is remaining in the battery as follows:
3.
Red + Amber + Green (2, 3 & 4) –2/3 to
full capacity
Red + Amber (2 & 3) –1/3 to 2/3 capacity
Red (2) –less than 1/3 capacity
4. Release the battery status button to turn
the LED’s OFF.
ASSEMBLY AND OPERATING
!
Fig. 1
Fig. 2

12
INSTALLING THE BATTERY PACK IN THE
IMPACT WRENCH
1. Remove the discharged battery pack (1)
from the tool by pressing the battery
release button (2) on the rear of the battery
downward (Fig. 3) and pulling the battery
pack out of the tool handle (3) (Fig. 4).
2. Insert the fully charged battery pack into
the matching slots in the rear of the tool
handle where the discharged battery pack
has been removed.
NOTE: The battery release button will
"click" into place when the battery pack is
fully installed.
WARNING: Do not immerse battery
pack in water. Sudden cooling could cause a
hot battery to explode or leak.
INSTALLING IMPACT SOCKETS
WARNING: Use only impact sockets
and accessories that are designed for use
with an impact wrench. Do not use chrome
plated sockets and accessories. Chrome plated
sockets and accessories are designed for hand
use only and MUST NOT be used with an
impact wrench. They may shatter and possibly
cause serious injury.
WARNING: Always remove the battery
from the tool before changing any sockets or
accessories. You may injure your hand if the
tool is started accidentally.
To install a socket, press the square portion of
the socket (1) onto the square drive (2) of the
impact wrench (Fig. 5).
NOTE: Slide the socket fully onto the square
drive so the socket retainer (3) will hold the
socket firmly in place.
FORWARD/REVERSE SWITCH
This impact wrench is equipped with a
forward/reverse switch (1) (Fig. 6).
1. To operate the impact wrench in the
reverse direction, press the
forward/reverse switch to the RIGHT. This
direction of rotation will loosen the
fastener.
2. To operate the impact wrench in the
forward direction, press the
forward/reverse switch to the LEFT. This
direction of rotation will tighten the
fastener.
NOTE: Never press the forward/reverse
switch while the impact wrench it turned
ON. Damage to the tool will result.
!
ASSEMBLY AND OPERATING
Fig. 3
Fig. 4
!
!
Fig. 5
Fig. 6

13
VARIABLE SPEED TRIGGER SWITCH
This impact wrench is equipped with a variable
speed ON/OFF trigger switch.
1. To start the impact wrench, gently squeeze
the trigger switch (2) (Fig. 7).
NOTE: The impact wrench will turn at its
slowest speed when the trigger switch is
depressed slightly. The impact wrench will
turn at its fastest speed when the trigger
switch is fully depressed.
2. To stop the impact wrench, release the
trigger switch.
NOTE: Never allow your hand to cover the
air vents of the impact wrench. Running the
tool at slow speeds will cause it to heat up.
If the tool gets warm while running at slow
speeds, stop and allow it to cool.
REMOVING FASTENERS
One of the most common uses for the impact
wrench is to remove car wheel nuts for rotating
the tires. Car wheel nut removal is used for
illustrative purposes.
DANGER: Before attempting to remove
a car wheel, make sure all jacking, wheel
blocking and wheel removal safety
procedures illustrated in the Owner’s Manual
for your car are followed exactly. Failure to
follow those safety instructions could result
in serious injury or death.
1. Install the correct size of impact socket on
the impact wrench (Fig. 5).
2. Set the forward/reverse button to the
RIGHT for removing fasteners (Fig. 6).
ASSEMBLY AND OPERATING
Fig. 7
For safety reasons, the operator must
read the sections of this Owner’s Manual
entitled "GENERAL SAFETY
WARNINGS", "POWER TOOL SAFETY",
"SPECIFIC SAFETY RULES", "BATTERY
AND CHARGER SAFETY" and
"SYMBOLS" before using this impact
wrench.
Verify the following every time the impact
wrench is used:
1. Safety glasses and hearing
protection are being worn.
2. Socket or accessory is "impact
wrench"rated.
3. Socket or accessory is in good
condition.
Failure to observe these safety rules will
significantly increase the risk of injury.
WARNING
!
!
!

14
REMOVING FASTENERS –cont’d
3. Insert the battery in the tool (Fig. 4).
4. Grasp the impact wrench handle (1) with
one hand and the front housing of the
impact wrench (2) with the other hand
(Fig. 8).
5. Place impact socket (3) onto the wheel nut.
NOTE: Make sure the socket is fully
engaged with the nut to avoid potentially
damaging the socket or the wheel nut.
6. While holding the tool level with the ground
and with a firm grasp, squeeze the trigger
switch (4).
When removing fasteners, do not allow the
impact wrench to operate more than 15 seconds
unless the fastener begins to turn. If the fastener
fails to turn within 15 seconds, reverse the
direction of rotation and operate the impact
wrench in a forward direction on the fastener for
a few seconds. Now switch back to reverse
direction and remove the fastener. This
procedure will usually break loose seized or
"frozen" fasteners.
WARNING: Operating the impact wrench for
more that 15 seconds at a time on a seized or
"frozen" fastener will place severe stress on the
impact wrench and cause damage. It may also
break the fastener.
ASSEMBLY AND OPERATING
!
Fig. 7

15
GENERAL
WARNING: When servicing, use only
identical replacement parts. The use of any
other part may create a hazard or cause
product damage.
DO NOT use solvents when cleaning plastic
parts. Plastics are susceptible to damage from
various types of commercial solvents and may
be damaged by their use. Use a clean cloth to
remove dirt, dust, oil, grease etc.
WARNING: Do not allow brake fluids,
gasoline, petroleum-based products,
penetrating oils, etc. to come into contact
with plastic parts. They contain chemicals
that can damage, weaken or destroy plastic.
DO NOT abuse power tools. Abusive practices
can damage the tool and the workpiece.
WARNING: DO NOT attempt to modify
tools or create accessories. Any such
alteration or modification is misuse and
could result in a hazardous condition leading
to possible serious injury. It will also void
the warranty.
LUBRICATION
All of the bearings in this tool are lubricated with
a sufficient amount of high-grade lubricant for
the life of the unit under normal conditions.
Therefore, no further lubrication is required.
BATTERY PACK REMOVAL AND
PREPARATION FOR RECYCLING
To preserve our natural resources, please
recycle or dispose of batteries properly.
The batteries accompanying this tool may
contain chemicals and metals that are harmful
to the environment. Never dispose of
rechargeable batteries in your normal household
garbage or in landfill sites, because they will add
to the pollution of the environment.
Consult your local waste authority for
information regarding available recycling and
disposal options.
WARNING: Upon removal of the battery
pack, cover the terminals of the battery pack
with electrical tape or heavy-duty adhesive
tape. Never touch both terminals with metal
objects or body parts, because a short
circuit may result. Keep away from children.
Do not attempt to destroy or disassemble
battery pack or remove any of its
components. Rechargeable batteries must
be recycled or disposed of properly. Failure
to comply with these warnings could result
in fire and serious injury.
MAINTENANCE
!
!
!
!

16
NICKEL-CADMIUM BATTERY
MAINTENANCE
Nickel-cadmium batteries are powerful, rugged
and provide hundreds of charge/discharge
cycles if properly maintained and periodically
"exercised". Exercising is required to recover
most of the capacity lost during usage. This
process reduces the size of the active cadmium
hydroxide crystals on the anode, to expose the
entire surface area and restore capacity.
How to care for your Nickel-cadmium
battery
1. Never allow a battery to freeze.
2. Do NOT charge a battery when the work
area or the battery temperature is at or
below 0°C (32° F) or above
45°C (113° F). Allow it to sit at room
temperature for at least 30 minutes before
charging.
3. Do not charge a battery if it feels warm to
the touch.
4. Never charge a battery after a short use.
Let it sit until it is needed again.
5. Never charge the battery until the tool in
which it is being used cannot produce
useful work.
HOW TO EXERCISE A NICKEL-CADMIUM
BATTERY
NOTE: Ni-Cd and Ni-Mh batteries have a self
discharge rate of approximately 1% per day.
The self discharge rate depends upon the
temperature.
1. Every two months or after 30
charge/discharge cycles, whichever
comes first, fully discharge your battery.
To fully discharge the battery, place it in
the tool that it came with and work with the
tool until it nearly stops and no longer
produces useful action.
2. If the tool came in a kit with a worklight,
insert the battery into the light. Turn the
switch ON and leave it ON until the
filament is cherry red.
3. Let the battery rest for 30 minutes at room
temperature 21°C (70° F) before
charging.
4. Charge the fully discharged battery for
approximately 1 hour at 21° C (70° F).
MAINTENANCE

17
EXPLODED VIEW

18
PARTS LIST
WARNING: When servicing, use only Mastercraft®replacement parts. The use of any other
parts may create a safety hazard or cause damage to the tool.
Any attempt to repair or replace electrical parts on this tool may create a safety hazard unless
repairs are performed by a qualified technician. For more information, call the Toll-free Helpline,
at 1-800-689-9928.
Always order by PART NUMBER, not by key number.
!
Key #
Part #
Part Name
Quantity
1
4030010114
Screw ST3.9*25
4
2
4040030001
Spring washer Φ4mm
4
3
2020050059
Aluminum casting
1
4
3140020017
"O" ring
1
5
2010080012
Bushing
1
6
2030020034
Washer No.1
1
7
2040040088
Outer shaft
1
8
4080070001
Steel ball Φ5.5
2
9
2040200002
Torsion slot
1
10
4080040001
Steel ball Φ4
24
11
2030010035
Washer No.2
1
12
2050060178
Torsion spring
1
13
2040050062
Inner shaft
1
14
4110050003
Pin
3
15
2010010027
Planetary gear
3
16
2030020229
Washer No.3
1
17
4010010058
Bearing
1
18
2010090067
Inner gear ring
1
19
4020020013
Screw M5*8
2
20
4040030003
Spring washer 5mm
2
21
3150070078
Gear box
1
22
2010180009
Motor gear
1
23
1030130002
Motor
1
24
3010020022
Enclosure
1
25
1060050017
Switch
1
26
4020010027
Screw M3*6
1
27
2020180005
Heat sink
1
28
3120030108
Direction setting button
1
29
4030010106
Screw ST3.9*19
7
30
4030010098
Screw ST3.9*14
2
31
2050080150
Spring
2
32
3150170007
Plate electrode
1
33
2030150012
Conducting plate
2
34
1290090009
Battery pack
1
35
3140100006
Casting cover
1

19
3-Year Limited Warranty
This Mastercraft® product is guaranteed for a period of three (3) years from the
date of original retail purchase against defects in workmanship and materials,
except for the following components:
a) Component A: Batteries, chargers and carrying cases, which are
guaranteed for a period of two (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 is 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 the purchase date must be
provided;
b) This warranty will not apply to any product or part thereof that is worn,
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 that are expected to
become inoperative or usable after a reasonable period of use;
d) This warranty will not apply to routine maintenance and consumable items
such as, 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 specified
otherwise in writing);
Page 1 of 2

20
Rev 1.1 29/06/2012
3-Year Limited Warranty –cont’d
These warranties are subject to the following conditions and limitations:
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, including but not limited to, scratches, dents, paint
chips, or to any corrosion or discoloring by heat, abrasive and
chemical cleaners; and
i) This warranty will not apply to component parts sold by and identified
as the product or company, which shall be covered under the product
manufacturer’s warranty, if any.
Additional Limitations
This warranty applies only to the original purchaser, and cannot be transferred.
Neither the retailer not the manufacturer shall be liable for any other expense, loss
or damage, including, without limitation, 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.
Mastercraft® is a superior line of products selected for their workmanship and
materials. These products are designed to meet rigorous quality and performance
standards, and are approved by our Quality Assurance laboratory.
TOLL-FREE HELPLINE: 1-800-689-9928
Page 2 of 2
Fig. 8