Alpha Industries AEP-458 User Manual

Alpha Electric Polisher

Instr uctional Guide

AEP-458 (110V - 50/60Hz)

ELECTRIC TOOL

Please read this instruction manual thoroughly to ensure safety and correct use of machine.
Keep this Manual in a place where operators can access it easily , anytime when necessary .

250 Braen Avenue, Wyckoff, NJ 07481 • 800-648-7229 • Fax: [phone]

www.Alpha-Tools.com

ALPHA ELECTRIC POLISHER

INSTRUCTION MANUAL

Thank you for purchasing the Alpha Electric Polisher . This polisher is the workhorse of a complete polishing
system. A wide range of accessories help you perform many different tasks. This tool lets you grind, shape,
bevel, contour and polish all kinds of granite and marble. Y ou can easily change from one type of disc to
another in just a matter of seconds. The tool is used with water to help you get the best possible finish, to
reduce the health risks of dust, and to give the most savings in time and money from modern accessories.
For your safety , please read this manual thoroughly before you start operating this polisher .

About the symbols

Handling this machine incorrectly may cause an accident or injury . In this manual, safety notices are classi­fied into “DANGER”, “WARNING”, and “CAUTION” according to the hazard level:

DANGER Death or serious personal injury are imminent when the operator neglects

to follow suggested instructions.

WARNING There is a possibility of death or serious personal injury when the

operator neglects to follow suggested instructions.

CAUTION There is a possibility of personal injury or property damage when the

operator neglects to follow suggested instructions.

Note: Failing to observe CAUTION notices could result in death or serious personal injury in
some situations. Be sure to read and observe the safety notices to ensure sefety and correct use
of the machine.

Examples of the symbols

This symbol is followed by a DANGER, WARNING, or CAUTION notice, which depicts the
suggested procedure or practice, and / or possible dangers or injuries.

The symbol signifies prohibition. In or near this symbol, a prohibited action or motion
is depicted. (The symbol on the left prohibits disassembling the machine).

The symbol signifies an order or instruction, Which is illustrated in the symbol. (The
symbol on the left shows to unplug the power cord from the outlet.)

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CONTENTS

Precautions for the safe use of this machine..............................................3

1. Operating environment.............................................................................3

2. Clothing and protective equipment.........................................................3

3. Before use.................................................................................................3

4. Att aching a wheel......................................................................................4

5. During use.................................................................................................4

6. Af ter use.....................................................................................................5

7. Precautions for using Alpha Electric Polisher.............................................6

Applications............................................................................................................................7

Specifications................................................................................................................. ........7

Part names..............................................................................................................................7

St andard accessories...........................................................................................................8

Alpha Hand Polishing System...............................................................................................9

Preparations before starting a job......................................................................................15

Preparations before operation............................................................................................15

How to operate.....................................................................................................................16

Maintenance and inspection..............................................................................................19

If a problem occurs..............................................................................................................20

Schematic..............................................................................................................................21

Parts List..............................................................................................................................22

Declaration by the manufactures........................................................................................24

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Precautions for the safe use of this machine

Correct operation and regular maintenance are essential for the safe operation of this machine. Be
sure to read safety notices in this manual carefully before using or servicing the machine.

1. Operating environment

WARNING

• Restrict access to the workshop.

Do not permit anybody but the operator to access the workshop. In particular , be sure to keep
children away from the workshop.

• Be careful of fire or explosions.
Never use this machine near ignitable or explosive materials including gasoline, combustible
gases, or inflammable adhesives.
Otherwise, sparks generated by commutation or switching may cause fire or explosion.

CAUTION

• Keeping the workarea in order.

T ake p articular care by keeping the workarea in order.
Leaving the work bench or work area untidy could cause cloth or material to be caught at the end of
tools or machine to be dropped, resulting in a very dangerous situation.

2. Clothing and Protective equipment
W ARNING

• Wear personal safety clothing and equipment.

Be sure to wear all personal safety equipment including protective glasses, waterproof safety boots,
earplugs, and rubber gloves. If necessary , wear a dustproof mask in dusty areas. Inhaling dust can
damage the throat, lungs and circulatory system.

CAUTION

• Wear appropriate clothing

Do not wear loose clothing.
They can be caught in the rotating part of the machine.

3. Before use
W ARNING

• Supply the specified voltage

Supply the voltage specified on the nameplate of the machine.
Otherwise, damage could result to the machine, or risk of personal injury .

• Do not let water into the motor.

Water inside the machine will weaken the electrical insulation of the motor and may result in
electric shock.

• T ake measures against electric shock.

Be sure to install an GFCI to the power source to prevent electric shock.

3

CAUTION

• Use the machine only for its designated applications.

Do not use the machine for any purpose other than those specified in this manual.
Do not use the machine for grinding or polishing metal and wood workpieces.
This machine is specialized for processing of glass and natural stone.

4. Att aching tools

WARNING

• Prevent accidental start-up.

Be sure to unplug the power cord from the outlet before attaching or removing polishing wheels.
St arting the motor accidently may cause bodily injury .

5. During use

DANGER

•Do not touch rotating parts.

Never access or touch the rotating wheel of the machine with your hands or body during operation.

WARNING

• Secure work piece.

Use clamps to securely fix a workpiece onto the bench.
A loose workpiece may drop and cause injury .

• Do not operate the machine from an awkward position.

Ensure a secure footing and stable body position before and during operation the machine.
Operating the machine in an awkward position will increase human fatigue.

• Prevent accidental start-up.

Turn of f the power switch before plugging the power cord into the outlet.
Turn off the power switch and unplug the power cord when power failure occurs.
Do not carry the machine while the power cord is connected to the outlet.
St arting the motor accidently may cause bodily injury

• Do not overload the machine.

Never operate the machine at an output which exceeds the rated voltage specified on the plate.

• Operate the machine with attention.

Do not use the machine when you cannot concentrate or make appropriate decisions (when
tired, or under the influence of drugs or alcohol)

4

CAUTION

• Use the machine after you have appropriate training and knowledge about it.

Never permit an untrained person or a child to use the machine.

• Handle the machine with care.

If you accidentally drop, do not use the machine until checking that it is not cracked, deformed, or in
any way damaged.
Do not block the ventilation window to avoid motor burnout.

6. Af ter use

W ARNING

• Use specified parts

Use specified genuine replacement parts when servicing the machine

CAUTION

• Conduct adequate maintenance and inspection.

Blow dust from inside the motor.
Always clean and maint ain the power cord to prevent damage due to oils or grease.

• Unplug the power cord when not using the machine.

Be sure to unplug the power cord from the outlet before maintenance, change parts, inspection,

or cleaning.

• Keep the machine in a safe place.

Af ter using the machine, remove any dust or dirt from it and store it in a dry , safe place.
Do not store the machine in areas:

• where children can reach the machine or it can be easily tampered with;

• where temperature and humidity fluctuate suddenly;

• where the machine is exposed in rain and high humidity;

• where the machine is exposed in direct sunlight.

• Handle the cord properly.

Do not move the machine without unplugging the power cord, or pull the power cord out of the
outlet.
By doing so may cause disconnection or short-circuit.
A void contact with heat, oil, or sharp objects.

ATTENTION

Observe the laws and regulations of noise levels in your area.
Please observe local laws and regulations regarding noise control in order to avoid disturbing surrounding
areas.
Install a soundproof wall if required to comply with the local laws and regulations.

5

Precautions for using the Alpha Electric Polisher .

In addition to the general safety notices described on the preceding pages, please read
and observe the following safety notices before using the machine.

W ARNING

• Use protective cover.

Be sure to attach the protective cover and use it during operation.
The protective cover will protect the operator if the wheel breaks.

• Do not leave the machine unattended while running.

Do not leave the machine unattended on the workbench or workshop while it is running.

• If you accidentally drop the machine, do not use the machine until checking that it is not

cracked, deformed, or damaged.

Cracks, deformation, or damage of the machine and/or wheel may cause bodily injury .

CAUTION

• Follow the procedures specified in the instruction manual correctly to attach a wheel or

an accessory to the machine.

If accessories are not correctly attached, they will scatter or fall off and may cause bodily injury .

• When for the 1st time a new wheel is attached and machine is turned on, observe any

suspicious abnormal noises.

• Conduct a test run.

Wait until the machine reaches operating rotation speed, and check that there are no abnormal
sounds or vibrations during idling. Refer to page 12 (7. Making test run)
Operations without conducting a test run could cause bodily injury .

• Be careful of your surroundings when working in high places.

When working in high places, make sure there are no people below .
Be careful not to catch the power cord on anything.
Be careful not to drop the machine or any materials. They may cause an accident.

• Install the power cord and the water hose to avoid interference with working area.

Make sure the power cord and the water hose do not interfere with working area.

6

Application

Grinding, sanding and polishing the corners of glass and natural stone.
Grinding, sanding and polishing the straight edge of glass and natural stone.
Grinding, sanding and polishing the bevel edge of glass and natural stone.

Specifications

Working power supply: Single-phase AC, 50/60 Hz
Volt age: 1 15v (AEP-458) 220v (AEP-258)
Motor: Single-phase, series commutator motor
No load: 2,000 r .p.m.
Continuous operation: 30 minutes
Weight: 5 lb/2.27 kg
Cord: 23 ft / 7m vinyl insulated three-conductor power cord with a grounding clip

Part Names:

Handle Grip

Spindle

Motor

End Cap

Power Cord

Power cord plug

Switch

Water Control V alve

Water Suppy Hose

Splash Cover

Figure-1

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