Amada MH-5B Manual de usuario

S06M0436E-04

OPERATION MANUAL

HAND-HELD WELDING HEAD

MH-5B

Thank you for purchasing the Amada Miyachi Hand-held Welding Head MH-5B.

Before using this Welding Head, read this operation Manual carefully until you have

familiarized yourself with it.

After reading, keep the manual in a place where operators can refer to it at any time.

If you have any questions during use, refer to this manual.

Contents

[1] For Correct Use.........................................................1

[2] Features .....................................................................4

[3] Specifications and Accessories ..............................4

[4] Name and Function of Each Part.............................4

[5] Connection to Welding Transformer and

Welding Power Supply .............................................5

[6] User’s Maintenance ..................................................6

[7] Outline Drawing ........................................................ 7

-1-

[1] For Correct Use

Safety Precautions

Before using, read “Safety precau-

tions” carefully to understand the

correct method of use.

These precautions are shown for safe use of・

our products and for preven of damage or

tion

injury to operators or others.

Be sure to read each of them, since all of

them are important for safety.

The meaning of the words and symbols is・

as follows:

Denotes operations and practices that may

imminently result in serious injury or loss

of life if not correctly followed.

Denotes operations and practices that may

result in serious injury or loss of life if not

correctly followed.

Denotes operations and practices that may

result in personal injury or damage to the

equipment if not correctly followed.

These symbols denote "prohi-

bition". They are warnings about

actions out of the scope of the

warranty of the product.

These symbols denote actions

which operators must take.

Each symbol with a triangle

denotes that the content gives

DANGER WARNINGnotice of ,

or to the operator.CAUTION

Do not touch the inside of the Welding Head.

You may receive an electric shock or be burned if you touch the inside of

the Welding head unnecessarily.

Never disassemble, repair or modify the Equipment.

These actions can cause electric shock and fire.

-2-

Do not touch any welded part or electrodes during welding and

just after welding finished.

The welded part of a workpiece, electrodes and main shaft are very hot.

Do not touch them; otherwise you may be burnt.

Use proper tools(wire strippers, pressure wire connectors, etc.)

for termination of the connecting cables.

Do not cut the wire conductor. A flaw on it can cause fire and electric shock.

Do not damage the power cable and connecting cables.

Do not tread on, twist or tense any cable. The power cable and connecting

cables may be broken, and that can cause electric shock and fire.

Do not use a damaged power cable, connecting cable or plug.

A damaged cable or a plug can cause electric shock, short circuits and fire.

If any part needs to be repaired, consult Amada Miyachi Co., Ltd. or your

distributor.

Connect the cables securely.

Insecure connection of a cable can cause fire and electric shock.

Stop the operation if any trouble occurs.

Continuous operation after occurrence of a trouble such as burning smell,

abnormal sound, abnormal heat, smoke, etc. can cause electric shock and

fire. If such a trouble occurs, immediately consult Amada Miyachi Co., Ltd.

or your distributor.

Persons with pacemakers must stay clear of the welding

machine.

A person who uses a pacemaker must not approach the welding machine or

walkaroundtheweldingshopwhiletheweldingmachineisinoperation,

without being permitted by his/her doctor. The welding machine generates a

magnetic field and has effects on the operation of the pacemaker while it is

turned on.

Protective gear must be worn.

Put on protective gear such as protective gloves, long-sleeve jacket, leather

n, etc. Spatter can burn the skin if they touch the skin.

apro

Wear protective glasses.

If you look at the flash directly during welding, your eyes may be damaged.

If any spatter gets in your eye, you may lose your eyesight.

-3-

splash water on the Welding Head.Do not

Water splashed over the electric parts, can cause electric shock and short

circuits.

.Keep combustible matter away from the Equipment

Spatter can ignite combustible matter. If it is impossible to remove all

combustible matter, cover them with non-combustible material.

Do not cover this Equipment with a blanket, cloth, etc.

Do not cover this Equipment with a blanket, cloth, etc. while you are using it.

Thecovermaybeoverheatedandburn.

Keep a fire extinguisher nearby.

Keep a fire extinguisher in the welding shop in case of fire.

Maintain and inspect this Welding Head periodically.

Maintain and inspect the Equipment periodically, and repair any damage

nearby before starting operation.

Do not use this Welding Head for any purpose other than

welding.

Use of this Equipment in a manner other than specified can cause electric

shock and fire.

Precautions for Handling

Do not drop or tread on this Welding Head.・

Do not use this Welding Head in the following places:・

Damp places (where humidity is 90% or higher), dusty places, places where chemicals

are handled, places near a high noise source, hot or cold places (where temperatures

are above 40 or below 5 ), and places where water will be condensed.℃℃

Use proper tools (wire strippers, pressure wire connector, etc.) for termination of the・

connecting cables, and take care not to damage the conductors.

Clean the outside of this Welding Head with a soft, dry cloth or one wet with a little water.・

If it is very dirty, use diluted neutral detergent or alcohol. Do not use paint thinner,

benzine, etc., since they can discolor or deform the Equipment.

Do not put a screw, a coin, etc., in this Welding Head, since they can cause a malfunction.・

Operate this Welding Head according to the method described in this operation manual.・

-4-

[2] Features

has the following features.The Amada Miyachi Hand-held Welding Head MH-5B

ince the electrode force can be adjusted steplessly, it can be set finely.・S

Since a stable force is applied to the electrode for each weld , constant weld・

quality is obtained.

Since the electrode responds to follow-up penetration quickly, an expulsion or・()

an excessive indentation is not made and the welded surface is clean.

Since this Welding Head has a rugged construction, reliable and stable weld・

quality is obtained.

Since this Welding Head is small and light, the operator can use it for a long time・

without fatigue.

[3] Specifications and Accessories

Check that all accessories

are provided.Specifications Accessories

Item Electrode rod* 3 Tip: 0.5 2p'csMH-5B-01 φφ()‥‥

Secondary 14mm ,1000mm 2 p'csElectrode 0.5 5.5kgf～

‥

cable

force Steplessly adjustable()

pieceForcing 1Spring Grounding 200 by 30mm ‥‥

plate 2mm thick

method

3 Tip: 0.5 Operation 1 copyElectrode dia.φφ()

manual

()Allowable 30 Ws At 2% duty cycle

A1C and inverter * One electrode is factory-attached.weld energy ()

Mass 200g

Outline See outline drawing

[4]NameandFunctionofEachPart

Electrode (CrCu)①

The electrode for spot

welding.

Main shaft②

The conductor to hold

the electrode. Retracts

when a pressure is

applied.

Fixing screw③

Secures the electrode.

-5-

Weld force scale④

Indicates the approximate

force exerted.

Be sure to hold the to use this⑤Body Body

Handle with care the metalWelding Head.

parts and the secondary cable

⑥Cover ()①②③

because they get hot. Do not place

metallic such as a watch, tool, etc.,⑦Secondary cable anything

around this Head during operation, becauseConnects this Head and

. Two it may be broken and can injure you.welding controller

14mm andcables of

２

1000mm long is attached.

ATTENTION

Start cable⑧

If anything metallic, such as a screwdriver, wire, etc.,Connects to the Start

touches metallic portion it may be welded toSwitch connector of the ()①②③

this Welding Head.

welding controller.

Do not place anything metallic around this WeldingDoes not have polarity.

Head during operation.

Grounding plate⑨

A conductor to ground.

[5] Connection to Welding Transformer and

Welding Power Supply

-6-

[6] User's Maintenance

1. Replacing electrode

When replacing the electrode, observe the following procedures:

If a welding current flows during electrode replacement, injury

or breakage may result. When replacing the electrode, be

sure to turn off power supply of the welding controller.

Loosen the fixing screw and pull out the①

electrode.

Insert the replacement electrode into the②

main shaft.

Tighten the fixing screw.③

2. Adjusting weld force

Secure the cover and turn the Body to adjust weld force.

For the relationship between the weld force scale and the actual weld force, see the

Weld Force Conversion Graph.

Weld Force Conversion Graph

←

NOTE

GraphThe Weld Force Conversion

indicates the theoretical values.

Use a pressure gauge or a spring

balance to measure the actual

pressure.

Line-up the center of the screw

andtheweldforcescaletoadjust

theweldforce.

When you set the weld force to

the minimum or the maximum,

the indicator may be damaged

if you try to adjust beyond the

scale.

Weld force

decrease

Weld force increase

-7-

[7] Outline Drawing

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