Hitachi G 23SR, G 18SR User Manual

Model Disc Grinder Modèle Meuleuse Modelo Amoladora angular

G 18SR • G 23SR

G23SR

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL

WARNING

IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily

injury! This manual contains important information about product safety. Please read and understand this manual BEFORE operating the power tool. Please keep this manual available for other users and owners before they use the power tool. This manual should be stored in safe place.

INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI

AVERTISSEMENT

Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner la mort ou de sérieuses blessures corporelles ! Ce mode d’emploi contient d’importantes informations à propos de la sécurité de ce produit. Prière de lire et de comprendre ce mode d’emploi AVANT d’utiliser l’outil motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs et propriétaires avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi doit être conservé dans un endroit sûr.

INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES

ADVERTENCIA

¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede resultar en lesiones de gravedad o la muerte! Este manual contiene información importante sobre la seguridad del producto. Lea y comprenda este manual ANTES de utilizar la herramienta eléctrica. Guarde este manual para que puedan leerlo otras personas antes de utilizar la herramienta eléctrica. Este manual debe ser guardado en un lugar seguro.

DOUBLE INSULATION DOUBLE ISOLATION AISLAMIENTO DOBLE

English

IMPORTANT SAFETY INFORMATION ......3

MEANINGS OF SIGNAL WORDS ..............3

SAFETY............................................................4

GENERAL SAFETY RULES .........................4

SPECIFIC SAFETY RULES AND

SYMBOLS.............................................. 6

DOUBLE INSULATION FOR SAFER

OPERATION .......................................... 8

FUNCTIONAL DESCRIPTION .......................10

NAME OF PARTS ......................................10

SPECIFICATIONS ...................................... 10

CONTENTS

Page Page

ASSEMBLY AND OPERATION..................... 11

APPLICATIONS .........................................11

PRIOR TO OPERATION ............................. 11

GRINDER OPERATION .............................13

DEPRESSED CENTER WHEEL

ASSEMBLY AND DISASSEMBLY......14

MAINTENANCE AND INSPECTION.............15

ACCESSORIES .............................................. 17

STANDARD ACCESSORIES ..................... 17

OPTIONAL ACCESSORIES .......................17

PARTS LIST ...................................................49

Français

INFORMATIONS IMPORTANTES DE

SÉCURITÉ............................................18

SIGNIFICATION DES MOTS

D’AVERTISSEMENT ........................... 18

SECURITE ...................................................... 19

REGLES GENERALE DE SECURITE .........19

REGLES DE SECURITE SPECIFIQUES

ET SYMBOLES .................................... 21

DOUBLE ISOLATION POUR UN

FONCTIONNEMENT PLUS SUR ........ 24

DESCRIPTION FONCTIONNELLE ................25

NOM DES PARTIES ..................................25

SPECIFICATIONS ...................................... 25

TABLE DES MATIERES

Page Page

Español

INFORMACIÓN IMPORTANTE SOBRE

SEGURIDAD ........................................ 33

SIGNIFICADO DE LAS PALABRAS DE

SEÑALIZACIÓN................................... 33

SEGURIDAD ..................................................34

NORMAS GENERALE DE SEGURIDAD ... 34 NORMAS Y SÍMBOLOS ESPECÍFICOS DE

SEGURIDAD ........................................ 36

AISLAMIENTO DOBLE PARA OFRECER

UNA OPERACIÓN MÁS SEGURA ..... 39

DESCRIPCIÓN FUNCIONAL .........................40

NOMENCLATURA..................................... 40

ESPECIFICACIONES.................................. 40

Página Página

ASSEMBLAGE ET FONCTIONNEMENT......26

UTILISATIONS ..........................................26

AVANT L’UTILISATION ............................ 26

UTILISATION DE LA MEULEUSE ............28

ASSEMBLAGE ET DESASSEMBLAGE

DE LA MEULE A DEPRESSION

CENTRALE ..........................................29

ENTRETIEN ET INSPECTION ....................... 30

ACCESSOIRES .............................................. 32

ACCESSOIRES STANDARD ..................... 32

ACCESSOIRES SUR OPTION ...................32

LISTE DES PIECES ........................................49

ÍNDICE

MONTAJE Y OPERACIÓN ............................ 41

APLICACIONES ......................................... 41

ANTES DE LA OPERACIÓN ...................... 41

OPERACIÓN DE LA AMOLADORA

ANGULAR ........................................... 43

MONTAJE Y DESMONTAJE DE LA

RUEDA DE DISCO ABOMBADO ........44

MANTENIMIENTO E INSPECCIÓN .............. 46

ACCESORIOS ................................................48

ACCESORIOS ESTÁNDAR .......................48

ACCESORIOS OPCIONALES .................... 48

LISTA DE PEIZAS .......................................... 49

English

IMPORTANT SAFETY INFORMATION

Read and understand all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool.

Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures.

Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain the operation and maintenance instructions.

Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the power tool and in this Instruction Manual.

NEVER use this power tool in a manner that has not been specifically recommended by HITACHI.

MEANINGS OF SIGNAL WORDS

WARNING indicates a potentially hazardous situations which, if ignored, could result in

death or serious injury. CAUTION indicates a potentially hazardous situations which, if not avoided, may result in

minor or moderate injury, or may cause machine damage. NOTE emphasizes essential information.

English

SAFETY

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 safety a) Keep work area clean and well lit.

Cluttered or 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.

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.

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 and/or the battery pack from the power

toll 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.

English

–WARNING– To reduce the risk of injury, user must read instruction manual.

English

SPECIFIC SAFETY RULES AND SYMBOLS

1. ALWAYS use proper guard with grinding wheel. A guard protects operator from broken wheel fragments.

2. Accessories must be rated for at least the speed recommended on the tool warning label. Wheels and other accessories running over rated speed can fly apart and cause injury.

3. Hold tools by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will make exposed metal parts of the tool “live” and shock the operator.

4. ALWAYS wear ear protectors when using the tool for extended periods.

Prolonged exposure to high intensity noise can cause hearing loss.

5. Use only a depressed center wheel with a rated capacity which is GREATER than 6,600 RPM. Using any wheel a rated capacity LESS than 6,600 RPM and/or an incorrect sized wheel (see SPECIFICATIONS at page 10) may result in wheel breakage, flying wheel fragments, and resulting in death or serious injury.

6. NEVER touch moving parts.

NEVER place your hands, fingers or other body parts near the tool’s moving parts.

7. NEVER operate without all guards in place. NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the tool.

8. Use right tool. Don’t force small tool or attachment to do the job of a heavy-duty tool. Don’t use tool for purpose not intended —for example— don’t use circular saw for cutting tree limbs or logs.

9. NEVER use a power tool for applications other than those specified. NEVER use a power tool for applications other than those specified in the Instruction Manual.

English

10. Handle tool correctly. Operate the tool according to the instructions provided herein. Do not drop or throw the tool. NEVER allow the tool to be operated by children, individuals unfamiliar with its operation or unauthorized personnel.

11. Keep all screws, bolts and covers tightly in place. Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.

12. Do not use power tools if the plastic housing or handle is cracked. Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be used until repaired.

13. Blades and accessories must be securely mounted to the tool. Prevent potential injuries to youself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.

14. Keep motor air vent clean. The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check for dust build-up frequently.

15. Operate power tools at the rated voltage. Operate the power tool at voltages specified on its nameplate. If using the power tool at a higher voltage than the rated voltage, it will result in abnormally fast motor revolution and may damage the unit and the motor may burn out.

16. NEVER use a tool which is defective or operating abnormally. If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a Hitachi authorized service center.

17. NEVER leave tool running unattended. Turn power off. Don’t leave tool until it comes to a complete stop.

18. Carefully handle power tools. Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.

19. Do not wipe plastic parts with solvent. Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may damage and crack plastic parts. Do not wipe them with such solvents. Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly.

20. NEVER use a depressed center wheel which is cracked or deformed or worn away (see the MAINTENANCE AND INSPECTION section on page 15).

21. NEVER use the grinder in places where the sparks generated by the grinder can cause explosion, such as where flammable materials or gases are present.

22. NEVER push in the push button while the spindle is running.

23. ALWAYS wear eye protection that meets the requirement of the latest revision of ANSI

Standard Z87.1.

English

24. ALWAYS wear a mask or respirator to protect yourself from dust or potentially harmful particles generated during the grinding operation.

25. ALWAYS firmly grip the body handle and side handle while operating the grinder.

26. ALWAYS have a trial run before grinding commence (see “Test the grinder before using” on page 12).

27. ALWAYS follow the instructions contained in this manual when replacing the depressed center wheel.

28. ALWAYS be careful with buried object such as an underground wiring. Touching these active wiring or electric cable with this tool, you may receive an electric shock. Comfirm if there are any buried object such as electric cable within the wall, floor or ceiling where you are going to operate here after.

29. Definitions for symbols used on this tool

V ............ volts

Hz ..........hertz

A............amperes

no .......... no load speed

W...........watt

...........Class II Construction

---/min ...revolutions per minute

DOUBLE INSULATION FOR SAFER OPERATION

To ensure safer operation of this power tool, HITACHI has adopted a double insulation design. “Double insulation “ means that two physically separated insulation systems have been used to insulate the electrically conductive materials connected to the power supply from the outer frame handled by the operator. Either the symbol “ insulation” appear on the power tool or on the nameplate. Although this system has no external grounding, you must still follow the normal electrical safety precautions given in this Instruction Manual, including not using the power tool in wet environments. To keep the double insulation system effective, follow these precautions: 䡬 Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this

power tool, and only genuine HITACHI replacement parts should be installed.

䡬 Clean the exterior of the power tool only with a soft cloth moistened with soapy water,

and dry thoroughly. Never use solvents, gasoline or thinners on plastic components; otherwise the plastic may dissolve.

” or the words “Double

SAVE THESE INSTRUCTIONS

AND

MAKE THEM AVAILABLE TO

OTHER USERS AND OWNERS

OF THIS TOOL!

English

FUNCTIONAL DESCRIPTION

NOTE: The information contained in this Instruction Manual is designed to assist you in

the safe operation and maintenance of the power tool. NEVER operate, or attempt any maintenance on the tool unless you have first read

and understood all safety instructions contained in this manual. Some illustrations in this Instruction Manual may show details or attachments that

differ from those on your own power tool.

NAME OF PARTS

Push button

Gear cover

Packing gland

Depressed center wheel

Housing

Brush cap

Side handle

Wheel guard

Fig. 1

Handle

Switch

SPECIFICATIONS

Model G18SR G23SR Motor Single-Phase Series Commutator Motor Power Source Single-Phase 120 V AC 60 Hz / DC Current 15 A No-Load Speed 6,000/min Wheel Size:

External diam. 7" (180 mm) 9" (230 mm) Hole diam. 7/8" (22 mm) 7/8" (22 mm)

Weight 9.5 lbs (4.3 kg)

English

ASSEMBLY AND OPERATION

APPLICATIONS

䡬 Removal of casting fin and finishing of various type of steel, bronze and aluminum

materials and castings.

䡬 Grinding of welded sections or sections cut by means of an acetylene torch. 䡬 Grinding of synthetic resins, slate, brick, marble.

WARNING: To avoid the risk of serious injury, NEVER use this grinder with cup

wheels and/or saw blades.

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms to the power source requirements specified on the product nameplate.

2. Power switch

Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, the power tool will start operating immediately and can cause serious injury.

3. Extension cord

When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

WARNING: Damaged cord must be replaced or repaired.

4. Check the receptacle

If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact a licensed electrician to make appropriate repairs. If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.

5. Check your work environment

Ensure the following before operation;

䡬 No flammable gas, liquid, or object at worksite. 䡬 When grinding thin steel sheet it may cause a high booming noise.

To avoid such noise, place a rubber mat under the workpiece.

䡬 Clear the area of children or unauthorized personnel.

English

6. Mounting the wheel guard

Be sure to mount the wheel guard at an angle that will protect the operator’s body from injury by a broken wheel piece. [Installing and adjusting the wheel guard]

䡬 Slightly loosen the screw on the wheel

guard.

䡬 Install the wheel-guard-locating pin in line

with the across flats of the packing gland, turn it to the angle suitable for operation, and make adjustment.

䡬 After the adjustment, ensure that the screw

is securely tightened on the wheel guard in order to fix it completely.

Locating pin

Wheel guard

WARNING: If the wheel guard is not

attached properly, a broken wheel may result in and cause death or serious injury.

7. Thoroughly check that the depressed center wheel is free of cracks, splits and other abnomalities before mounting. Make sure it is firmly clamped and has been properly mounted. Refer to page 14 of this manual for Depressed Center Wheel Assembly and Disassembly.

8. Test the grinder before using

Before actually beginning the grinding work, test the grinder by first clearing the area of all other personnel. Make sure the wheel guard is in place and that you are wearing eye protection. Turn the grinder “on”, and make sure the grinder runs smoothly and shows no abnormalities. Duration of the trial run is as follows:

When depressed center wheel is replaced .................. 3 minutes or more

When starting daily work .............................................. 1 minute or more

9. Use only properly rated depressed center wheels

Use only depressed center wheels rated at 6,600 RPM or more. Using a depressed center wheel rated less can lead to wheel disintegration during operation and cause serious bodily injury.

10. Check the push button

Make sure that the push button is disengaged by pushing push button two or three times before turning on the grinder. (Fig. 5)

Across flats

Packing gland

Fig. 2

GRINDER OPERATION

1. Hold the grinder firmly by its handle and side handle (Fig. 1)

The grinder produces a counterforce which must be controlled by firmly holding onto the grinder.

2. Turn the grinder “on” (Fig. 3)

While holding the grinder firmly, use one finger to switch to the “on” position. Switch ON: Push the locking button forward

and then press the switch lever. *For continuous use, press the

switch lever. The switch lever is locked by pushing the locking button forward once again. (*Subject to change depending on area.)

Switch OFF: Press and release the switch lever.

Locking button

Fig. 3

Switch lever

3. Use light grinding pressure

There is no need to press hard when grinding. Usually the grinder’s own weight is sufficient to allow the required light contact with the surface to be ground.

WARNING: Do not press the grinder forcibly against the surface to be ground. Heavy

pressure can result in wheel breakage and serious injury. It can also damage the surface being ground or damage the grinder’s motor.

English

4. Use proper grinding angle

Grind only with the wheel’s edge by lifting the grinder 15° to 30°, as shown in Fig. 4.

CAUTION:

● Do not use the entire surface of the depressed center wheel. Use only the edge of the

depressed center wheel.

5. Move the grinder in the proper direction

When using a new depressed center wheel in direction A (Fig. 4), the wheel edge may cut into the workpiece. In this case, grind in direction B (Fig. 4). Once the wheel edge is worn, the workpiece can be ground in both directions.

NOTE: The wheel provided (resinoid wheel) is rated as Class A grain and # 24 grain size. It

is most suitable for heavy grinding of steel and other types of materials.

15°–30°

Fig. 4

6. Adjust operation to desired finish

For a fine finish, decrease pressure by lifting slightly. Grind slowly and at the appropriate speed.

English

CAUTION:

● The revolving depressed center wheel will create air turbulence. Do no lay the grinder down in areas of dust or dirt until it has come to a complete stop.

DEPRESSED CENTER WHEEL ASSEMBLY AND DISASSEMBLY

WARNING: Never attempt to assemble or disassemble the depressed center wheel,

unless the power switch is in the “OFF” position and the electrical cord has been disconnected from the receptacle.

1. Assembly

(1) Turn the disc grinder upsidedown so that the spindle is facing upward. (2) Align the oval-shaped indentation of the wheel washer with the notched part of the

spindle, then attach them. (3) Fit the protuberance of the depressed center wheel onto the wheel washer. (4) Screw the wheel nut onto the spindle. (5) While pushing the push button with

one hand, lock the spindle by turning

the depressed center wheel slowly with

the other hand.

Tighten the wheel nut by using the

supplied wrench as shown in Fig. 5.

Wrench

Tighten

Wheel nut

CAUTION:

● Tighten the wheel nut securely and confirm

that the depressed center wheel does not wobble.

2. Disassembly

To remove the depressed center wheel, simply reverse the above-mentioned procedure.

Depressed center wheel

Wheel washer

Wheel guard

Spindle

Push button

Fig. 5

English

MAINTENANCE AND INSPECTION

WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle

during maintenance and inspection. Using cracked, deformed or damaged wheels can lead to wheel breakage and resulting serious injury.

1. Replacing the depressed center wheel

Replace the depressed center wheel when it has been worn out to about 2-3/8" (60mm) in external diameter. Confirm that there is no crack or any damage to the depressed center wheel. If there is a crack or a transformation in the wheel, replace it immediately.

2. Inspecting the screws

Regularly inspect all screws and ensure that they are fully tightened. Should any of the screws be loosened, retighten them immediately.

WARNING: Using this grinder with loosened screws is extremely dangerous.

3. Confirm that there is no damage in the wheel guard, the electrical cord and the housing, etc.

Check that the on/off switch operates normally.

4. Inspecting the carbon brushes (Fig. 6)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it could result in motor trouble. When an auto-stop carbon brush is equipped, the motor will stop automatically. At that time, replace both carbon brushes with new ones which have the same carbon brush Numbers shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

CAUTION: Using this grinder with a carbon brush which is worn in excess of the wear

limit will damage the motor.

Wear limit

No. of

carbon brush

Usual carbon 0.24"

brush (6 mm)

No. of carbon brush

0.67"

(17 mm)

Fig. 6

NOTE: Use HITACHI carbon brush No. 44 or 74 indicated in Fig. 6.

Auto-stop 0.28"

carbon brush (7 mm)

English

䡬 Replacing carbon brushes:

Disassemble the brush cap with a slotted-head screwdriver. The carbon brush can then be easily removed.

5. Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.

6. Service parts list

A: Item No. B: Code No. C: No. Used D: Remarks

CAUTION:

● Repair, modification and inspection of Hitachi Power Tools must be carried out by a

Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

MODIFICATIONS: Hitachi Power Tools are constantly being improved and modified to

incorporate the latest technological advancements. Accordingly, some parts (i.e. code numbers and/or design) may be changed without prior notice.

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