Hitachi SAY-150A User Manual

Rotary Orbital Sander
Model SAY – 150A

Handling instructions

Note:
Before using this Electric Power Tool, carefully read through these
HANDLING INSTRUCTIONS to ensure efficient, safe operation. It is
recommended that these INSTRUCTIONS be kept readily available
as an important reference when using this power tool.

GENERAL SAFETY RULES

WARNING!
Read all instructions

Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
The term “power tool” in all of the warnings listed below
refers to your mains operated (corded) power tool or battery
operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

1) Work area
a) Keep work area clean and well lit.

Cluttered and dark areas invite accidents.

b) 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 of fumes.

c) Keep children and bystanders away while operating

a power tool.

Distractions can cause you to lose control.

2) Electrical safety
a) 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.

b) 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.

c) Do not expose power tools to rain or wet

conditions.

Water entering a power tool will increase the
risk of electric shock.

d) 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.

e) 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

f) Recommendation for use of residual current

device with a rated residual current of 30 mA
or less.

3) Personal safety
a) 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.

b) Use safety equipment. Always wear eye

protection.

Safety equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce
personal injuries.

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c) Avoid accidental starting. Ensure the switch is

in the off position before plugging in.

Carrying power tools with your finger on the
switch or plugging in power tools that have the
switch on invites accidents.

d) 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.

e) Do not overreach. Keep proper footing and balance

at all times.

This enables better control of the power tool in
unexpected situations.

f) 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.

g) If devices are provided for the connection of dust

extraction and collection facilities, ensure these
are connected and properly used.

Use of these devices can reduce dust related hazards.

4) Power tool use and care
a) 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.

b) 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.

c) Disconnect the plug from the power source before

making any adjustments, changing accessories, or
storing power tools.

Such preventive safety measures reduce the risk
of starting the power tool accidentally.

d) 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.

e) Maintain power tools. Check for misalignment or

binding of moving parts, breakage of parts and
any other condition that may affect the power
tools operation.
If damaged, have the power tool repaired before
use.

Many accidents are caused by poorly maintained
power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.

g) Use the power tool, accessories and tool bits etc.,

in accordance with these instructions and in the
manner intended for the particular type of power
tool, taking into account the working conditions
and the work to be performed.

Use of the power tool for operations different from
intended could result in a hazardous situation.

5) Service
a) 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.

PRECAUTION
Keep children and infirm persons away.
When not in use, tools should be stored out of reach of
children and infirm persons.

SAFETY WARNINGS COMMON FOR
SANDING OR POLISHING OPERATIONS

a) This power tool is intended to function as a sander

or polisher tool. Read all safety warnings,
instructions, illustrations and specifications provided
with this power tool.

Failure to follow all instructions listed below may
result in electric shock, fire and/or serious injury.

b) Operations such as grinding, wire brushing or

cutting-off are not recommended to be performed
with this power tool.

Operations for which the power tool was not
designed may create a hazard and cause personal
injury.

c) Do not use accessories which are not specifically

designed and recommended by the tool
manufacturer.

Just because the accessory can be attached to your
power tool, it does not assure safe operation.

d) The rated speed of the accessory must be at least

equal to the maximum speed marked on the power
tool.

Accessories running faster than their rated speed
can break and fly apart.

e) The outside diameter and the thickness of your

accessory must be within the capacity rating of
your power tool.

Incorrectly sized accessories cannot be adequately
guarded or controlled.

f) The arbour size of wheels, flanges, backing pads

or any other accessory must properly fit the spindle
of the power tool.

Accessories with arbour holes that do not match
the mounting hardware of the power tool will run
out of balance, vibrate excessively and may cause
loss of control.

g) Do not use a damaged accessory. Before each use

inspect the accessory such as abrasive wheels for
chips and cracks, backing pad for cracks, tear or
excess wear, wire brush for loose or cracked wires.
If power tool or accessory is dropped, inspect for
damage or install an undamaged accessory. After
inspecting and installing an accessory, position
yourself and bystanders away from the plane of
the rotating accessory and run the power tool at
maximum no-load speed for one minute.

Damaged accessories will normally break apart
during this test time.

h) Wear personal protective equipment. Depending on

application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron capable of
stopping small abrasive or workpiece fragments.

The eye protection must be capable of stopping
flying debris generated by various operations. The
dust mask or respirator must be capable of filtrating
particles generated by your operation. Prolonged
exposure to high intensity noise may cause hearing
loss.

i) Keep bystanders a safe distance away from work

area. Anyone entering the work area must wear
personal protective equipment.

Fragments of workpiece or of a broken accessory
may fly away and cause injury beyond immediate
area of operation.

j) Hold power tool by insulated gripping surfaces

only, when performing an operation where the
cutting accessory 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
shock the operator.

k) Position the cord clear of the spinning accessory.

If you lose control, the cord may be cut or snagged
and your hand or arm may be pulled into the
spinning accessory.

l) Never lay the power tool down until the accessory

has come to a complete stop.

The spinning accessory may grab the surface and
pull the power tool out of your control.

m) Do not run the power tool while carrying it at your

side.

Accidental contact with the spinning accessory could
snag your clothing, pulling the accessory into your
body.

n) Regularly clean the power tool’s air vents.

The motor’s fan will draw the dust inside the housing
and excessive accumulation of powdered metal may
cause electrical hazards.

o) Do not operate the power tool near flammable

materials.

Sparks could ignite these materials.

p) Do not use accessories that require liquid coolants.

Using water or other liquid coolants may result in
electrocution or shock.

KICKBACK AND RELATED WARNINGS

Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad or any other accessory. Pinching
or snagging causes rapid stalling of the rotating accessory
which in turn causes the uncontrolled power tool to be
forced in the direction opposite of the accessory’s rotation at
the point of the binding.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into the
pinch point can dig into the surface of the material causing
the wheel to climb out or kick out. The wheel may either
jump toward or away from the operator, depending on
direction of the wheel’s movement at the point of pinching.
Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided
by taking proper precautions as given below.

a) Maintain a firm grip on the power tool and position

your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up.

The operator can control torque reactions or kickback
forces, if proper precautions are taken.

b) Never place your hand near the rotating accessory.

Accessory may kickback over your hand.

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