MasterCraft 054-1277-8 Owner's Manual
2.8A ROTARY HAMMER
054-1277-8
Owner’s Manual
PRODUCT SPECIFICATIONS
Rating:
120 V, 60 Hz AC
Amperes:
2.5 A
Variable speed:
0–900 RPM (no load)
Beats per minute:
0–4,800 BPM (no load)
Accessory clamping system:
SDS-plus®
Weight:
3 lb. 3 oz. (1.45 kg)
Need Assistance?
Call us on our toll free customer support line:
1-800-689-9928
Technical questions
Replacement parts
Parts missing from package
Imported by Mastercraft Canada Toronto, Canada M4S 2B8
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 ……………………………………………………………………...
5–7
General safety rules …………………………………………………………………..
5
Work area ………………………………………………………………….…………..
5
Electrical safety ……………………………………………………………………….
5
Personal safety ………………………………………………………………………..
5–6
Power tool use and care of.…………………………………………………………..
6
Service …………………………………………………………………………………
7
Specific safety rules …………………………………………………………………..
7–8
Extension cord safety ………………………………………………………………...
8
Symbols ………………………………………………………………………………..
9
Know your rotary hammer ……………………………………………………………
10
Accessories ……………………………………………………………………………
10
Contents ……………………………………………………………………………….
11
Assembly and operating ……………………………………………………………..
12–19
Forward / reverse switch ……………………………………………………………..
12
Variable speed trigger switch ………………………………………………………..
12
Trigger switch lock-on button ………………………………………………………..
13
Drill / hammer control …………………………………………………………………
13–14
Installing bits & accessories in the SDS-plus® accessory clamping system ……
14–15
Installing a drill bit in the chuck ……………………………………………………...
15–16
Removing drill bits from the chuck ………………………………………………….
16
Drilling ………………………………………………………………………………….
17–19
Maintenance …………………………………………………………………………..
19
Exploded view …………………………………………………………………………
20
Parts list ………………………………………………………………………………..
21–22
Warranty ……………………………………………………………………….………
23–24
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.
SAVE THESE INSTRUCTIONS FOR REFERENCE
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.
!
4
ELECTRICAL SAFETY
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.
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.
!
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 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.
!
POWER TOOL SAFETY
6
PERSONAL SAFETY – cont’d
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 these are
connected and properly used. Use of
dust collection 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 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.
Hold power tool by insulated gripping
surfaces, when performing an operation
where the fastener may contact hidden
wiring or its own cord. Fasteners
contacting a "live" wire may make exposed
metal parts of the power tool "live" and
could give the operator an electric shock.
Wear ear protectors. Exposure to noise
can cause hearing loss.
Use auxiliary handle(s), if supplied with
the tool. Loss of control can cause
personal injury.
Hold power tools by insulated gripping
surfaces when performing an operation
where the cutting tool may contact
hidden wiring or its own cord. Cutting
accessory contacting a "live" wire may
make exposed metal parts of the power
tool "live" and could give the operator an
electric shock.
POWER TOOL SAFETY
7
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.
WARNING: Know your rotary
hammer. Do not plug the tool into the
power source 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.
WARNING: Always use a safety
shield, hearing protection and dust
mask when operating the drill in
"hammer" mode.
Use only hammer drill bits and accessories
that are designed for use with a rotary
hammer when using this rotary hammer in
the hammer mode. Standard drill bits are
NOT designed for use in a rotary hammer
and MUST NOT be used with a rotary
hammer. They may shatter and possibly
cause serious injury.
Do not drill material too small to be
securely held.
Always keep hands out of the path of the
drill bit. Avoid awkward hand positions
where a sudden slip could cause your
hand to move into the path of the drill bit.
Secure the workpiece. Use clamps or a
vice to hold the workpiece. It is safer than
using your hand and it frees both hands to
operate the tool.
Make sure there are no nails or foreign
objects in the part of the workpiece to be
drilled.
To avoid injury from accidental starting,
always remove the plug from the power
source before installing or removing a drill
bit.
Do not install or use any drill bit that
exceeds 7” (17.5 cm) in length or extends
more than 6” (15 cm) beyond the chuck
jaws. They can bend or break suddenly.
SPECIFIC SAFETY
RULES
!
SAVE THESE INSTRUCTIONS FOR REFERENCE
!
POWER TOOL SAFETY
!
8
Before starting the operation, jog the drill
switch to make sure the drill bit does not
wobble or vibrate.
Do not use fly cutters or multiple-part hole
cutters, because they can come apart or
become unbalanced during use.
Make sure the spindle has come to a
complete stop before touching the chuck
or attempting to change the drill bit.
When using the chuck, always make sure
the chuck spindle is properly inserted into
the tool and the drill bit firmly tightened in
the chuck before starting the tool.
When using a drill bit or screwdriver bit
adaptor in the tool, make sure it is properly
inserted into the tool before starting the
tool.
WARNING: Keep the extension
cord clear of the working area. Position
the cord so it will not get caught on the
workpiece, tools or any other obstructions
while you are working with the power tool.
Make sure any extension cord used with
this tool is in good condition. When using
an extension cord, be sure to use one of
heavy enough gauge to carry the current
the tool will draw. An undersized cord will
cause a drop in line voltage resulting in
loss of power and overheating.
The table below shows the correct size to
use according to cord length and
nameplate ampere rating. If in doubt, use
the next heavier gauge. The smaller the
gauge number the heavier the cord.
Be sure your extension cord is properly
wired and in good condition. Always
replace a damaged extension cord or have
it repaired by a qualified electrician before
using it. Protect your extension cord from
sharp objects, excessive heat and damp or
wet areas.
Use a separate electrical circuit for your
power tools. This circuit must not be less
than 14 gauge wire and should be
protected with either a 15 AMP time
delayed fuse or circuit breaker. Before
connecting the power tool to the power
source, make sure the switch is in the OFF
position and the power source is the same
as indicated on the nameplate. Running at
lower voltage will damage the motor.
SPECIFIC SAFETY RULES
EXTENSION CORD
SAFETY
!
MINIMUM GAUGE (AWG)
EXTENSION CORDS (120V use only)
Amperage
rating Total length
More
than
Not
more
than
25'
(7.5 m)
50'
(15 m)
100'
(30 m)
150'
(45 m)
0 6 18
16
16
14 6 10
18
16
14
12
10
12
16
16
14
12
12
16
14
12
Not Applicable
SAVE THESE INSTRUCTIONS FOR REFERENCE
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