Makita 5177B, 5277B User guide
7-iw
Hypoid
185
mm
(7-1/4”)
INSTRUCTION MANUAL
Saw
MODEL
MODEL
51778
52778
Blade
diameter
185
mm
(7-1/4”)
Max. cutting capacities
I
50’ 450
mm
62
(2-3/8”) (1-9/16”) 11-23/32
40
mm
44
mm,,
No
load speed Overall Net
(RPM)
)
4,300
length weight
439
mm
(17-1/4“) (15.0
6.8
kg
Ibs)
GENERAL
SAFETY
RULES
(For
WARNING! Read and understand
to
follow
all
instructions listed below,
All
Tools)
all
instructions.
may
result
in
electric
shock, fire and/or serious personal injury.
SAVE THESE
READ ALL
1.
Keep your work area clean and well
accidents.
2.
Do not operate power tools
of flammable liquids, gases, or dust. Power tools create sparks which may
ignite the dust or fumes.
3.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause
4.
Double Insulated tools are equipped with a polarized plug (one blade is wider
than the other.) This plug will
plug does not
contact a qualified electrician to install a polarized outlet. Do not change
the plug
wire grounded power cord and grounded power supply system.
5.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges
and refrigerators. There
grounded.
6.
Don't expose power tools to rain or wet conditions. Water entering a power
tool
will
7
Do not abuse the cord. Never use the cord to carry the tools or pull the plug
from an outlet. Keep cord away from heat, oil, sharp edges or moving parts.
Replace damaged cords immediately. Damaged cords increase the risk of
electric shock.
8.
When operating a power tool outside, use an outdoor extension cord marked
"W-A'
of electric shock.
9.
Stay alert, watch what you are doing and use common sense when operating
a power tool. Do not use tool while tired or under the influence of drugs,
alcohol, or medication.
may result in serious personal injury.
IO.
Dress properly.
your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry
or long hair can be caught in moving parts.
INSTRUCTIONS.
you
fit
fully in the outlet, reverse the plug. If
in
any way. Double insulation H eliminates the need for the three
is
increase the risk of electric shock.
or "W." These cords are rated for outdoor use and reduce the risk
A
moment of inattention while operating power tools
Do
not wear loose clothing or jewelry. Contain long hair. Keep
INSTRUCTIONS
lit.
Cluttered benches and dark areas invite
in
explosive atmospheres, such as
to loose control.
fit
in a polarized outlet only one way. If the
an increased risk of electric shock if your body is
in
the presence
it
still does not
Failure
fit,
11.
Avoid accidental starting. Be sure switch is off before plugging
tools with your finger on the switch or plugging in tools that have the switch
on invites accidents.
12. Remove adjusting keys or switches before turning the tool on. A wrench or
a key that is left attached to a rotating part of the tool may result in personal
injury.
Do
13.
14.
15. Use clamps or other practical way to secure and support the workpiece to
16. Do not force tool. Use the correct tool for your application. The correct tool
17. Do not use tool if switch does not turn
18.
19.
20.
21.
22.
23.
24.
not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control
Use safety equipment. Always wear eye protection. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
a stable platform. Holding the work by hand or against your body is unstable
loss
and may lead to
will
do the job better and safer at the rate for which
be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source before making any adjustments,
changing accessories, or storing the tool. Such preventive safety measures
reduce the risk of starting the tool accidentally.
Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools, with sharp cutting edges are less likely to bind and are easier
to control.
Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tools operation. If damaged, have
the tool service before using. Many accidents are caused by poorly maintained
tools.
Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool, may become hazardous
when used on another tool.
Tool
service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of
injury.
When servicing a tool, use only identical replacement parts.
tions in the Maintenance section
or failure
injury.
to
follow
of control.
Maintenance Instructions may create a risk
of
the tool in unexpected situations.
it
is
it
on or off. Any tool that cannot
of
this manual.
Use
of
in.
Carrying
designed.
Follow
unauthorized parts
of
electric shock or
instruc-
3
Specific Safety Rules
1.
DANGER! Keep hands away from cutting area and blade. Keep your second
hand on auxiliary handle, or motor housing. If both hands are holding the
saw, they cannot be cut by the blade.
Keep your body positioned to either side of the saw blade, but not
with
the saw blade. KICKBACK could cause the saw to jump backwards. (See
"Causes and Operator Prevention of Kickback")
Do not reach underneath the work while blade is rotating. The guard can
not protect you from the blade below the work. Don't attempt to remove cut
material when blade is moving.
CAUTION: Blades coast after turn off.
2.
Check lower guard for proper closing before each use. Do not operate saw
if lower guard does not move freely and close instantly. Never clamp or tie
the lower guard into the open position. If saw is accidentally dropped, lower
guard may be bent. Raise the lower guard with the Retracting Handle and make
sure
it
moves freely and does not touch the blade or any other part, in all angles
and depths of cut.
3.
Check the operation and condition of the lower guard spring.
and the spring are not operating properly, they must be serviced before use.
Lower guard may operate sluggishly due to damaged parts gummy deposits,
a
buildup of debris.
or
4.
Lower guard should be retracted manually only for special cuts such as
"Pocket Cuts" and "Compound Cuts." Raise lower guard by Retracting
Handle. As soon as blade enters the material, lower guard must be released.
For all other sawing, the lower guard should operate automatically.
5.
Always observe that the lower guard is covering the blade before placing
saw down on bench or floor. An unprotected, coasting blade will cause the
saw to walk backwards, cutting whatever is in its path. Be aware of the time
it takes for the blade to stop after switch is released.
6.
NEVER hold piece being cut
to support the work properly to minimize body exposure, blade binding, or
loss
of control.
7.
Hold tool by insulated gripping surfaces when performing an operation where
the cutting tool may contact hidden
a "live" wire will also make exposed metal parts of the tool "live" and shock
the operator.
8.
When ripping always use a rip fence or straight edge guide. This improves
the accuracy of cut and reduces the chance for blade binding.
9.
Always use blades
holes. Blades that do not match the mounting hardware
eccentrically, causing
IO.
Never use damaged or incorrect blade washers or bolts. The blade washers
and bolt were specially designed for your saw, for optimum performance and
safety or operation.
with
in
your hands or across your leg. It is important
wiring
correct size and shape (diamond vs. round) arbor
or its own cord. Contact with
of
loss
of control.
If
the guard
the saw will run
in
line
4
11.
Causes and Operator Prevention
of
Kickback:
Kickback is a sudden reaction to a pinched, bound or misaligned saw blade,
causing an uncontrolled saw to lift up and
out
of the workpiece toward the
operator.
When the blade is pinched or bound tightly by the kerf closing down, the blade
stalls and the motor reaction drives the unit rapidly back toward the operator.
If the blade becomes twisted or misaligned in the cut, the teeth at the back
edge of the blade can dig into the top surface of the wood causing the blade
to climb out of the kerf and jump back toward operator.
Kickback is the result of tool misuse and/or incorrect operating procedures
or conditions and can be avoided by taking proper precautions as given below.
Maintain a firm grip with both hands on the saw and position your body and
arm to allow you to resist
KICKBACK
forces. KICKBACK forces can be
controlled by the operator, if proper precautions are taken.
When blade is binding, or when interrupting a cut for any reason, release
the trigger and hold the saw motionless in the material until the blade comes
to a complete stop. Never attempt to remove the saw from the work
the saw backward while the blade
is
in motion
or
KICKBACK
may occur.
Investigate and take corrective actions to eliminate the cause of blade binding.
When restarting a saw in the workpiece, center the saw blade
in
and check that saw teeth are not engaged into the material. If saw blade
is binding, it may walk up or KICKBACK from the workpiece as the saw is
restarted.
Support large panels to minimize the risk of blade pinching and
Large panels tend to sag under their own weight. Supports must
KICKBACK.
be
under the panel on both sides, near the line of cut and near the edge of the
panel as shown in Fig.
To
minimize the risk of blade pinching and kickback. When cutting operation
1.
requires the resting of the saw on the work piece, the saw shall be rested
on the larger portion and the smaller piece cut off.
or
pull
the kerf
placed
To
avoid kickback, do support board
or panel near the cut.
Fig.
Don’t support board or panel away
or panel near the cut.
1
Fig.
:
5
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