MasterCraft 055-6767-0 User manual

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IMPORTANT:
Please read this manual carefully before using
this mitre saw and save it for reference.
Model no. 055-6767-0
INSTRUCTION
MANUAL
TM
Dual-beveling Sliding Compound Mitre Saw
with Laser Line

model no. 055-6767-0 | contact us 1-800-689-9928
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TABLE OF CONTENTS
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 products.
TABLE OF CONTENTS
QUICK START GUIDE 4
SYMBOLS 6
SPECIFICATIONS 7
SAFETY GUIDELINES 8
ACCESSORIES AND ATTACHMENTS 15
TOOLS NEEDED FOR ASSEMBLY 17
CARTON CONTENTS 18
KNOW YOUR SLIDING MITRE SAW 19
ASSEMBLY 21
ADJUSTMENTS 29
OPERATION 38
MAINTENANCE 55
TROUBLESHOOTING GUIDE 58
REPLACEMENT PARTS 60
WARRANTY 64

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4
Read and understand the instruction manual to get the best use of the dual-bevel
sliding compound mitre saw.
Make sure the all accessories and the
blade are installed correctly and are
tight before operating the saw.
NOTE: The blade has been installed
in the mitre saw at the factory.
Recheck and adjust the alignment of
the blade before cutting if necessary.
1
Place hands at least 7 1/2" (19 cm)
away from the path of the blade—
out of the “no-hands zone.”
2
7 1/2”
(19 cm)
7 1/2”
(19 cm)
Use the hold-down clamp to hold the
workpiece firmly against the fence
to prevent movement towards the
blade. It is safer than using your hand
and it frees both hands to operate
the mitre saw.
3
QUICK START GUIDE

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Turn the laser guide on for
pre-alignment of your cut. Use the
laser adjustment knobs to adjust the
laser beam if necessary.
4
With the power switch OFF, bring
the saw blade down to the workpiece
to see the cutting path of the blade.
Then, squeeze trigger switch to
start the saw and lower the blade
into the workpiece with a firm
downward motion.
5
Hold the cutting arm in the down
position. Release the trigger switch
and wait for all moving parts to
stop before moving your hands and
raising the cutting arm.
6
QUICK START GUIDE
TM

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WARNING ICONS
Your power tool and its Operator’s Manual may contain “WARNING ICONS” (a picture
symbol intended to alert you to, and/or instruct you how to avoid, a potentially hazardous
condition). Understanding and heeding these symbols will help you operate your tool
better and safer. Shown below are some of the symbols you may see.
SAFETY ALERT: Precautions that involve your safety.
PROHIBITION
WEAR EYE PROTECTION: Always wear safety goggles or safety glasses with
side shields.
READ AND UNDERSTAND INSTRUCTION MANUAL: To reduce the risk of injury,
user and all bystanders must read and understand instruction manual before
using this product.
SUPPORT AND CLAMP WORK
KEEP HANDS AWAY FROM BLADE: Failure to keep your hands away from the
blade will result in serious personal injury.
WEAR RESPIRATORY AND HEARING PROTECTION: Always wear respiratory
and hearing protection.
DANGER

!
WARNING

!
CAUTION

!
DANGER: indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING: indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION: indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
SYMBOLS

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SPECIFICATIONS
MOTOR
POWER SOURCE 120V AC, 60 Hz, 15A
SPEED 3200 RPM (No load)
BRAKE ELECTRIC
DOUBLE INSULATED Yes
ARBOUR SHAFT SIZE 5/8" (15.9 mm)
BLADE
DIAMETER 10" (25.4 cm), 60-tooth carbide-tipped
ARBOUR SIZE 5/8" (15.9 mm)
ROTATING TABLE
MITRE ANGLE RANGE 0°–50° Right & Left
POSITIVE MITRE STOPS 0°, 15°, 22.5°, 31.6°, 45° Right & Left
BEVEL ANGLE RANGE 0°–45° Right / 0°–47° Left
BEVEL POSITIVE STOPS 0°, 33.9°, 45° Right & Left
CUTTING CAPACITY
CROSSCUT (MAXIMUM HEIGHT) 3 1/2" x 11 1/2" (8.9 x 29.2 cm)
CROSSCUT (MAXIMUM WIDTH) 3 1/2" x 12 1/2" (8.9 x 31.8 cm)
MITRE 45° RIGHT & LEFT 3 1/2" x 8 3/4" (8.9 x 22.2 cm)
BEVEL 45° RIGHT 1" x 12 1/2" (2.5 x 31.8 cm)
BEVEL 45° LEFT 1 5/8" x 12 1/2" (4.1 x 31.8 cm)
45° MITRE AND 45° BEVEL 1 5/8" x 8 3/4" (4.1 x 22.2 cm)
CROWN MOULDING NESTED 5 3/4" (14.6 cm)
BASE MOULDING AGAINST FENCE 3 1/2" (8.9 cm)
NET WEIGHT 20.06 kg (44 lb 4 oz)
LASER
CLASS IIIA
LASER WAVELENGTH 630–660 nm
MAX. LASER OUTPUT < 5 mW
SPECIFICATIONS

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GENERAL SAFETY INSTRUCTIONS BEFORE USING THIS POWER TOOL
Safety is a combination of common sense, staying alert and knowing how to use your
power tool.
• READ and become familiar with the entire Operator’s Manual. LEARN the
tool’s application, limitations and possible hazards.
• KEEP GUARDS IN PLACE and in working order.
• REMOVE ADJUSTING KEYS AND WRENCHES. Form the habit of checking to see that
keys and adjusting wrenches are removed from the tool before turning ON.
• KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
• DO NOT USE IN DANGEROUS ENVIRONMENTS. Do not use power tools in damp
locations, or expose them to rain or snow. Keep work area well lit.
• KEEP CHILDREN AWAY. All visitors and bystanders should be kept a safe distance
from work area.
• MAKE WORKSHOP CHILD PROOF with padlocks, master switches or by removing
starter keys.
• DO NOT FORCE THE TOOL. It will do the job better and safer at the rate for which it
was designed.
• USE THE RIGHT TOOL. Do not force the tool or an attachment to do a job for which
it was not designed.
• USE PROPER EXTENSION CORDS. Make sure your extension cord is in good
condition. When using an extension cord, be sure to use one heavy enough to carry
the current that the product will draw. An undersized cord will result in a drop in line
voltage and in loss of power, which will cause the tool overheat. The table on page 14
shows the proper wire gauge size usage for each extension cord length and ampere
rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the
heavier the cord.
• WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neckties, rings,
bracelets or other jewellery which may get caught in moving parts. Nonslip footwear
is recommended. Wear protective hair covering to contain long hair.
WARNING!
• To avoid mistakes that could cause serious injury, do not plug the tool in
until you have read and understood the safety guidelines.
SAFETY GUIDELINES

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• ALWAYS WEAR EYE PROTECTION. Any power tool can throw foreign objects
into the eyes and could cause permanent eye damage. ALWAYS wear Safety
Goggles (not glasses) that comply with ANSI Safety standard Z87.1. Everyday
eyeglasses have only impact–resistant lenses. They ARE NOT safety glasses. NOTE:
Glasses or goggles not in compliance with ANSI Z87.1 could seriously injure you when
they break.
• WEAR A FACE MASK OR DUST MASK. Sawing produces dust.
• SECURE WORK. Use clamps or a vice to hold work when practical. It is safer
than using your hand and it frees both hands to operate the tool.
• DISCONNECT TOOLS FROM POWER SOURCE before servicing, and when changing
accessories such as blades, bits and cutters.
• REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in the OFF
position before plugging the tool in.
• USE RECOMMENDED ACCESSORIES. Consult this Operator’s Manual for
recommended accessories. The use of improper accessories may cause a risk of
injury to yourself or others.
• NEVER STAND ON THE TOOL. Serious injury could occur if the tool is tipped or if the
cutting tool is unintentionally contacted.
• CHECK FOR DAMAGED PARTS. Before further use of the tool, a guard or other
part that is damaged should be carefully checked to determine that it will operate
properly and perform its intended function—check for alignment of moving parts,
binding of moving parts, breakage of parts, mounting and any other conditions that
may affect its operation. A guard or other part that is damaged should be properly
repaired or replaced.
• NEVER LEAVE THE TOOL RUNNING UNATTENDED. TURN THE POWER “OFF”. Do
not walk away from a running tool until the blade comes to a complete stop and the
tool is unplugged from the power source.
• DO NOT OVERREACH. Keep proper footing and balance at all times. NEVER reach
across the path of the cutting blade while tool is in operation.
• MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest
performance. Follow instructions for lubricating and changing accessories.
• DO NOT use power tool in the presence of flammable liquids or gases.
• DO NOT operate the tool if you are under the influence of any drugs, alcohol or
medication that could affect your ability to use the tool properly.
TM
SAFETY GUIDELINES

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• People with electronic devices, such as pacemakers, should consult their physician(s)
before using this product. Operation of electrical equipment in close proximity to a
heart pacemaker could cause interference or failure of the pacemaker.
• WEAR HEARING PROTECTION to reduce the risk of induced hearing loss.
SPECIFIC SAFETY INSTRUCTIONS FOR THIS SLIDING MITRE SAW
• DO NOT operate the mitre saw until it is completely assembled and installed
according to these instructions.
• IF YOU ARE NOT thoroughly familiar with the operation of mitre saws, seek guidance
from your supervisor, instructor or other qualified person.
• ALWAYS hold the work firmly against the fence and table. DO NOT perform any
operation free hand (use clamp wherever possible).
• KEEP HANDS out of the path of the saw blade. If the workpiece you are cutting
would cause your hands to be within 7 1/2" (19 cm) of the saw blade, the workpiece
should be clamped in place before making the cut.
• BE SURE the blade is sharp, runs freely and is free of vibration.
• ALLOW the motor to come up to full speed before starting a cut.
• KEEP THE MOTOR AIR SLOTS CLEAN and free of chips or dust.
• ALWAYS MAKE SURE all handles are tight before cutting, even if the table is
positioned in one of the positive stops.
• BE SURE both the blade and the collar are clean and the arbour bolt is tightened
securely.
• USE only blade collars specified for your saw.
• NEVER use blades larger in diameter than 10 inches.
• NEVER apply lubricants to the blade when it is running.
SAFETY GUIDELINES
WARNING!
• Dust generated from certain materials can be hazardous to your health.
Always operate saw in well-ventilated area and provide for proper
dust removal.

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SAFETY GUIDELINES
• ALWAYS check the blade for cracks or damage before operation. Replace a cracked
or damaged blade immediately.
• NEVER use blades recommended for operation at less than 3200 RPM.
• ALWAYS keep the blade guards in place and use at all times.
• NEVER reach around the saw blade.
• MAKE SURE the blade is not contacting the workpiece before the switch is
turned ON.
• IMPORTANT: After completing the cut, release the trigger and wait for the blade to
stop before returning the saw to the raised position.
• MAKE SURE the blade has come to a complete stop before removing or securing the
workpiece, changing the workpiece angle or changing the angle of the blade.
• NEVER cut metals or masonry products with this tool. This mitre saw is designed for
use on wood and wood-like products.
• NEVER cut small pieces. If the workpiece being cut would cause your hand or fingers
to be within 7 1/2" (19 cm) of the saw blade, the workpiece is too small.
• PROVIDE adequate support to the sides of the saw table for long work pieces.
• NEVER use the mitre saw in an area with flammable liquids or gases.
• NEVER use solvents to clean plastic parts. Solvents could possibly dissolve or
otherwise damage the material.
• SHUT OFF the power before servicing or adjusting the tool.
• DISCONNECT the saw from the power source and clean the machine when
finished using.
• MAKE SURE the work area is clean before leaving the machine.
• SHOULD any part of your mitre saw be missing, damaged, or fail in any way, or any
electrical component fail to perform properly, lock the switch and remove the plug
from the power supply outlet. Replace missing, damaged, or failed parts before
resuming operation.
• Because of the downward cutting motion, your safety requires that you stay very
alert to keeping hands and fingers away from the path that the blade travels.

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SAFETY GUIDELINES
• Be sure all guards are in place and working. If a guard seems slow to return to
its normal position or “hangs-up,” adjust or repair it immediately. Be alert at all
times—especially during repetitive, monotonous operations. Don’t be lulled into
carelessness due to a false sense of security. Blades are extremely unforgiving.
Clean the lower guard frequently to help visibility and movement. Unplug before
adjustment or cleaning.
• Abrasive cut-off wheels should not be used on mitre saws. Mitre saw guards are not
appropriate for abrasive cut-off wheels.
• To avoid loss of control or placing hands in the path of the blade, hold or clamp
all material securely against the fence when cutting. Do not perform operations
freehand.
• Support long material at the same height as the saw table.
• After completing a cut, release the trigger switch and allow the blade to come to a
complete stop, then raise the saw blade from the workpiece.
• Lock the mitre saw head in the down position during transport or when not in use.
• DRY RUN - It is important to know where the blade will intersect with the workpiece
during cutting operations. Always perform a simulated cutting sequence with the
power tool switched OFF to gain an understanding of the projected path of the saw
blade. At some extreme angles, the right or left side fence might have to be removed
to ensure proper clearance prior to making a cut.
POWER SUPPLY AND MOTOR SPECIFICATIONS
• The AC motor used in this saw is a universal, nonreversible type. See “MOTOR” in the
“TECHNICAL SPECIFICATIONS” section on page 7.
ELECTRICAL REQUIREMENTS – DOUBLE INSULATED
• The power tool is double insulated to provide a double thickness of insulation
between you and tool’s electrical system. All exposed metal parts are isolated from
the internal metal motor components with protecting insulation.
WARNING!
• To avoid electrical hazards, fire hazards, or damage to the tool, use
proper circuit protection. Your saw is wired at the factory for 120 V
operation. Connect to a 120 V, 15 A circuit and use a 15 A time delay fuse
or circuit breaker. To avoid shock or fire, if power cord is worn or cut, or
damaged in any way, have it replaced immediately.

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• Replacement parts – When servicing, use only identical replacement parts.
• Polarized plugs – This saw has a plug that looks like the one shown below:
• To reduce the risk of electrical shock, this saw has a polarized plug (one blade is wider
than the other). This plug will fit in a polarized outlet only one way. If the plug does
not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified
electrician to install the proper outlet. Do not change the plug in any way.
MOTOR SAFETY PROTECTION
IMPORTANT: To avoid motor damage, the motor should be blown out or vacuumed
frequently to keep sawdust from interfering with the motor ventilation.
• CONNECT this saw to a 120 V, 15 A circuit with a 15 A time-delay fuse or circuit
breaker. Using the wrong size fuse can damage the motor.
• If the motor won’t start, release the trigger switch immediately. UNPLUG THE SAW.
Check the saw blade to make sure it turns freely. If the blade is free, try to start the
saw again. If the motor still does not start, refer to the TROUBLESHOOTING GUIDE.
• If the tool suddenly stalls while cutting wood, release the trigger switch, unplug the
tool, and free the blade from the wood. The saw may now be started and the cut
finished.
• FUSES may “blow” or circuit breakers may trip frequently if:
- MOTOR is overloaded – overloading can occur if you feed too rapidly or make too
many start/stops in a short time.
SAFETY GUIDELINES
WARNING!
• Double insulation does not take the place of normal safety precautions
when operating this tool.
• To avoid electrocution:
- Use only identical replacement parts when servicing a tool with
double insulation. Servicing should be performed by a qualified
technician.
- Do not use power tools in wet or damp locations or expose them to
rain or snow.

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- LINE VOLTAGE is more than 10% above or below the nameplate voltage rating.
For heavy loads, the voltage at motor terminals must equal the voltage specified
on the nameplate.
- IMPROPER or dull saw blades are used.
• Most motor troubles may be traced to loose or incorrect connections, overload,
low voltage or inadequate power supply wiring. Always check the connections, the
load and supply circuit if the motor doesn’t run well. Check minimum gauge for the
length of cord you are using on the chart below.
GUIDELINES FOR EXTENSION CORDS
• Use a proper extension cord. Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy enough to carry the current
your product will draw. An undersized cord will cause a drop in line voltage, resulting
in loss of power and cause overheating. The table below shows the correct size to
use depending on 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 person before using it. Protect your
extension cords from sharp objects, excessive heat and damp or wet areas.
• Use a separate electrical circuit for your tools. This circuit must not be less than a
#12 wire with a 20 A time-lag fuse or a #14 wire with a 15 A time-lag fuse.
NOTE: When using an extension cord on a circuit with a #14 wire, the extension cord
must not exceed 25 feet in length. Before connecting the tool to the power line,
make sure the switch is in the OFF position and the electric current is rated the same
as the current stamped on the motor nameplate. Running at a lower voltage will
damage the motor.
SAFETY GUIDELINES
CAUTION!
• In all cases make certain the receptacle in question is properly grounded.
If you are not sure, have a certified electrician check the receptacle.
MINIMUM GAUGE FOR EXTENSION CORDS (AWG)
(when using 120 V only)
Amperage rating Total length of cord in feet
More than Not more than 25’ (7.6 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 Recommended

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RECOMMENDED ACCESSORIES
• Use only accessories recommended for this mitre saw. Follow instructions that
accompany accessories. Use of improper accessories may cause hazards.
• The use of any cutting tool except 10" saw blades which meet the requirements
under recommended accessories is prohibited. Do not use accessories such as
shaper cutters or dado sets. Ferrous metal cutting and the use of abrasive wheels is
prohibited.
ACCESSORIES
• To avoid the risk of personal injury, do not modify this power tool or use accessories
not recommended.
• Read warnings and conditions on your CARBIDE TIPPED SAW BLADE. Do not operate
the saw without the proper saw blade guard in place. Carbide is a very hard but brittle
material. Care should be taken while mounting, using, and storing carbide tipped
blades to prevent accidental damage. Slight shocks, such as striking the tip while
handling, can seriously damage the blade. Foreign objects in the workpiece, such as
wire or nails, can also cause tips to crack or break off. Before using, always visually
examine the blade and tips for bent blade, cracks, breakage, missing or loose tips, or
other damage. Do not use if damage is suspected. Failure to heed safety instructions
and warnings can result in serious bodily injury.
BLADE INFORMATION
• Always use a crosscut blade that is designed for cutting across the wood grain.
NEVER use Rip, Combination, Plywood, Dado or Abrasive type saw blades at
any time.
• Always use a 10" diameter blade with a 5/8" arbour hole. Speed rating must be at
least 3200 RPM.
• Read and understand all instructions provided with each blade before using on this
mitre saw.
• There are two main materials used for saw blades; high-speed steel (HSS) and carbide
tipped (TCT). While the HSS blades are generally less expensive than carbide tipped,
TCT blades will stay sharper longer than HSS. As a general rule the more teeth per
inch (TPI) the smoother the cut. Please read the information provided on the blade
for more details for their use.
ACCESSORIES AND ATTACHMENTS
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- General Purpose Wood Cutting: 24–40 TPI
- Fine Woodworking Cutting: 60–80 TPI
- Non-Ferrous Metal Cutting: Use only special blades designed for cutting this type
of material.
- Plastic Cutting: Use only special blades designed for cutting plastic.
• When cutting non-ferrous or plastic, be sure to clean up completely after each use.
Take special care with metal shavings after each cut, as these can cause damage to
the table top. ALWAYS WEAR EYE PROTECTION.
ACCESSORIES AND ATTACHMENTS

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TOOLS NEEDED FOR ASSEMBLY
Blade wrench
Supplied Not supplied
Star-head screwdriver
Adjustable wrench
Combination square Slotted screwdriver
COMBINATION SQUARE MUST BE TRUE
Should not gap or overlap when square is flipped over (see dotted figure).
Should not gap or overlap when square is
flipped over (see dotted figure).
Draw light line on
board along this edge.
Straight edge or a 3/4" board—this
edge must be perfectly straight.
TM
5 mm hex wrench

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CARTON CONTENTS
1
2
3
4
5
6
No. Description
1 Mitre saw
2 Instruction manual
3 Hold-down clamp
4 Mitre handle hardware bag
5Dust bag
6Blade wrench
7Bevel locking handle hardware bag
WARNING!
• Remove the product and any accessories from the package. Make sure
that all items listed in the packing list are included.
• Inspect the tool carefully to make sure no breakage or damage occurred
during shipping.
• Do not discard the carton or any packaging material until all parts have
been examined.
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No. Description
1 ON/OFF trigger switch handle
2 Laser vertical adjustment knob
3 Laser horizontal adjustment knob
4 Lower blade guard
5Base
6Mitre handle
7Positive stop locking lever
8Bevel locking handle
No. Description
9 Mitre detent override
10 Table
11 Stop plate
12 Left extension wing
13 Sliding fence
14 Hold-down clamp
15 Power cord storage
16 Built-in carry handle
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
KNOW YOUR SLIDING MITRE SAW

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17
18
19
20
22
23
24
25
26
27
28
29
30
31
32 33
No. Description
17 Slide carriage lock knob
18 Stop knob
19 Hold-down latch
20 Stop plate
21 Bevel detent pin
22 Sliding fence cam locking lever
23 Right extension wing
24 Mounting hole
25 Extension wing locking lever
No. Description
26 Mitre scale
27 Quick-cam mitre locking lever
28 Table insert
29 Blade
30 Safety lock-off switch
31 ON/OFF trigger switch
32 Laser ON/OFF rocker switch
33 Motor
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KNOW YOUR SLIDING MITRE SAW