MARKING METHODS MARK 300 Instructions Manual

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Page 1

MARKING METHODS, INC.

301 SOUTH RAYMOND AVENUE

ALHAMBRA, CA 91803-1531

626-282-8823

FAX 626-576-7564

Email: [email protected] Website: www.markingmethods.com

MANUAL FOR

ELECTRO-CHEMICAL

MARKING, EQUIPMENT

& SUPPLIES

ATTENTION:

PLEASE READ MANUAL

CAREFULLY BEFORE

OPERATING EQUIPMENT

INC

MARKING METHODS, INC.

MODEL MARK 300 (SERIES)

EQUIPMENT

•

OPERATION

•

ELECTROLYTE CHART

•

SUPPLIES

•

Page 2

WHAT IS ELECTRO-CHEMICAL MARKING?

ELECTRO-CHEMICAL MARKING is the process used for stress free permanent marking on all con-

ductive metals. The process is economical, simple, fast and safe. The one restriction to this process is that it will not function on painted parts, already anodized aluminum or through certain heavy phosphate coatings. However, by deep etching the parts prior to any of these non-conductive coatings, the mark shows through very legibly. This allows positive traceability throughout the life of the parts.

MARKING METHODS’ complete MARK 300 (SERIES) Electro-Chemical marking system is designed

to provide maximum performance and ease of operation. The assembly includes all the necessary equip-

ment and supplies to most effectively mark all parts....from tiny semiconductors to massive aircraft and

aerospace components. Depth of mark from one ten thousandth (.0001) of an inch deep for feeler and plug gages to ten thousandths (.010) deep for absolute traceability of parts is easily attainable.

The power unit is equipped with an AC-DC switch. The AC (alternating current) alternately etches out and redeposits back a combination of the metal oxide and electrolytic salts producing a black mark. The DC (direct current) charges the applicator negatively (cathodic) which dissolves metal out, etching a frosted or clear mark. To prevent corrosion, the parts must be thoroughly cleaned after marking to remove any residual salts. No special skill is required to operate the equipment except pride in doing a good job. Electro-Chemical marking does not deform, weaken or fracture the metal because molecular structure is not altered beyond the depth of the mark. Methods such as steel stamping, electric arc etching or vibratory marking alter the grain structure of the metal in the area of the mark causing possible stress or fracture to the parts.

AMPERES

CLEANER

RED

AC.

YELLOW

NORMAL

ETCH

DEEP

ETCH

OFF

MARK 300

MODEL

MARKING METHODS, INC.

ALHAMBRA, CALIFORNIA

INC

ELECTRO-CHEMICAL, LASER MARKING SPECIALISTS,

GROUND

MARK

BLACK

HOW DOES THE PROCESS WORK?

A controlled depth, permanently etched mark of any design or detail is made by the operator on metal surfaces in a matter of seconds. It is simply made by placing the MARKING APPLICATOR A over the STENCIL B in contact with the PART C to be marked. The part is positioned on a GROUND PLATE D to complete the electrical current. The

current and the electrolyte fluid do the rest seconds! A permanent mark is the result which can only be removed by buffing or grinding the metal down to the depth of the mark. Occasional blotting

of the applicator in the STENCIL CLEANER TRAY

E replenishes the electrolyte supply and helps

to keep the stencil apertures clean.

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Page 3

NORMAL-ETCH

INSTRUCTIONS for using MARK 300 POWER UNIT

(1) Plug the line cord connected to the power unit into a grounded 110/120 VAC outlet only. Converters are available for 220/240 VAC. (2) Plug the BLACK cord into the BLACK (MARK) receptacle; the opposite end of the cord into the HAND PAD. (3) Plug the RED cord into the RED (GROUND) receptacle; the opposite end to the GROUND PLATE or attach the alligator clip directly to the part to be identified. (4) Plug the YELLOW cord into the YELLOW (CLEANER) receptacle; the opposite end to the STENCIL CLEANER TRAY. (5) Set the AC-DC Switch on AC position for most metals and DC for Aluminum and Black Oxide. AC produces a black mark; DC produces a frosted or clear mark. (6) Set the Normal/Deep-Etch Switch on NORMAL. (7) Set the Rheostat on No. 5. If the mark is blurred, turn the Rheostat to a lower position. (8) Place a clean Hand Pad Screencloth on the Hand Pad. Saturate

the Screencloth with the proper Electrolyte. Select the proper Electrolyte from the chart on page 5. Refer to applicable MSDS for safety information.

NOTE: Fresh Electrolyte and a clean Screencloth are essential.

Saturate the Cleaner Tray Wick with the same Electrolyte used on

the Screencloth. Blot the Hand Pad in the Cleaner Tray to add fresh

Electrolyte. Use paper towels to blot off any excess Electrolyte on the Screencloth. (It should be saturated but not dripping).

REPLACE SCREENCLOTH WHEN IT BECOMES CONTAMINATED OR FAILS TO GIVE GOOD SHARP MARKS. (9) Position the Stencil on the part to be identified so the legend reads correctly and hold securely so the legend does not move.*

NOTE: If the Stencil is positioned on the Hand Pad for a single blot,

the legend should read reversed and be secured by a Retainer Ring. (10) Set the ON-OFF Switch to ON position. (11) Blot over the legend in the Stencil with the Hand Pad for approximately

2 seconds, then break contact by raising the Hand Pad from the

part momentarily. Continue the procedure until the desired darkness and/or depth is obtained. (12) To clean Stencil during marking, place the Stencil on the Cleaner Tray Wick and blot over the image with the Hand Pad. (13) After the desired darkness or depth is reached, remove the Stencil

from the part and using the APC Cleaner, thoroughly clean the part

with a clean shop cloth by using a rubbing action, making sure that none of the Electrolyte is left on the part.

NOTE: For best results pour some of the Cleaner into a small open

container instead of using the Cleaner from the bottle. This will prevent contamination of the fresh Cleaner. Parts may also be immersed in the APC Cleaner. CAUTION: IF THE PARTS ARE IMMERSED, CHANGE CLEANER WHEN IT BECOMES CONTAMINATED WITH ELECTROLYTE. WHEN THIS HAPPENS THE CLEANER WILL BECOME CLOUDY. (14) After cleaning the part, dry it thoroughly with a clean, dry cloth.** (15) After the marking is completed, turn the ON-OFF Switch to OFF. Unplug the BLACK, RED and YELLOW cords from their receptacles. (16) Remove the Screencloth from the Hand Pad and flush thoroughly with cold water. The Screencloths are reusable if they rinse out reasonably clean. (17) With water, thoroughly rinse the Hand Pad, Retainer Ring, Insulator, Ground Plate and any other material that came in contact with the Electrolyte. (18) Dry the above mentioned items with a clean dry cloth. (19) Discard all used Electrolyte and Cleaner.

NOTE: Never pour used Electrolyte or Cleaner back into the bottles as the oxidation from the parts will contaminate the fresh solutions. (20) After all these steps have been followed, your equipment and supplies will be ready for use the next time.

INSULATOR

HPI

HAND PAD

SCREENCLOTH

HPS

RETAINER RING

HPR

* See back cover for Die-Impression Stencil instructions.

** Use CPO or WSP for highly corrosive metal parts, after cleaning and drying part.

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Page 4

DEEP-ETCH

INSTRUCTIONS for using MARK 300 POWER UNIT

(1) Plug the line cord connected to the back of the power unit into a 110/120 VAC outlet only. Converters are available on request for 220/240 VAC. (2) Plug the BLACK cord into the BLACK (MARK) receptacle; the opposite end of the cord into the Deep-Etch Hand Pad. (3) Plug the RED cord into the RED (GROUND) receptacle; the opposite end to the Ground Plate or attach the alligator clip directly to the part to be identified. (4) Plug the YELLOW cord into the YELLOW (CLEANER) receptacle; the opposite end into the STENCIL CLEANER TRAY receptacle. (5) Set the AC-DC Switch on DC position. (6) Set the Normal/Deep-Etch Switch on DEEP-ETCH.

(7) Set the Rheostat to No. 3. (8) Set the ON-OFF Switch to ON position. (9) Place a clean Wick on the Deep-Etch Hand Pad and secure the Wick

with a Retainer Ring. Saturate the Wick with the proper Electrolyte. (Select the proper Electrolyte from the Deep-Etch column of the chart on page 5). NOTE: Fresh Electrolyte and a clean Wick are essential.

Saturate the Cleaner Tray Wick with the same Electrolyte used on the

Wick. Blot the Hand Pad in the Cleaner Tray to add fresh Electrolyte. Use paper towels to blot off any excess Electrolyte. USE A DEEP-

HAND PAD

WICK

HPW

RETAINER RING

HPR

(14) To clean the Stencil before marking the next part, place the Stencil on the Cleaner Tray Wick and blot over the image with the Hand Pad. (15) After the marking is completed, turn the ON-OFF switch to OFF . Unplug the BLACK, RED and YELLOW cords from their receptacles. (16) Remove the Wick Pad from the Hand Pad and DISCARD ALL USED WICKS. (17) Take the Hand Pad, Retainer Ring, Ground Plate and any other material that came in contact with the Electrolyte and rinse thoroughly with water. (18) Dry the above mentioned items with a clean dry cloth. (19) Discard all used Electrolyte and Cleaner.

ETCH WICK PAD FOR EACH ONE OR TWO PARTS. (10) Position the Stencil on the part to be identified so that the legend reads correctly and hold securely so the legend does not move.* (11) Blot over the Stencil with the Hand Pad 4 or 5 times, then dip the Hand

Pad into the Cleaner tray. The dwell time for each blotting should be approximately 2 to 3 seconds on, then break contact by raising the Hand Pad from the part momentarily. Continue the procedure 15 to 20 times or until the desired depth is obtained. (.003 to .006” deep

normally takes from 1 to 2 minutes.)** NOTE: Be sure the Stencil is

held securely and does not move during marking as this can cause

multiple marks. The blotting action should be as follows: 2 to 3 seconds

dwell ON the part, 1 second OFF the part. This allows the gases to escape and affords a pulsing effect. (12) After the desired depth is obtained, remove the Stencil from the part

and using the APC Cleaner, thoroughly clean the part with a shop cloth

by using a hard rubbing action, making sure that none of the Electrolyte

is left on the part. NOTE: For best results pour some of the Cleaner

into a small open container instead of using the Cleaner from the bottle. This will prevent contamination of the fresh Cleaner. (13) After cleaning the part thoroughly, dry it with a clean dry cloth.***

* See back cover for Die-Impression Stencil instructions. ** To produce a DARK Deep-Etch mark, set the AC-DC Switch on AC position and the Normal/Deep-Etch Switch on NORMAL ETCH. Blot over the Stencil again using fresh Electrolyte on the Hand Pad. This is done after the desired depth is achieved. *** Use CPO or WSP for highly corrosive metal parts, after cleaning and drying part.

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Page 5

BENCH FIXTURES

INSTRUCTIONS

for using BF1520, BF2045 & BF4060

BENCH FIXTURES

with MARK 300 POWER UNIT

NORMAL

OFF

MARK 300

MODEL

MARKING METHODS, INC.

INC

ALHAMBRA, CALIFORNIA

ELECTRO-CHEMICAL, LASER MARKING SPECIALISTS,

MARK

ETCH

DEEP ETCH

GROUND

AMPERES

AC.

CLEANER

(6) Set the Rheostat on No.5. Note: If the mark is blurred, turn the Rheostat to a lower position. (7) Place a clean Wick Pad on the graphite block in the Bench Fixture

(green side down) and secure the Wick with a Retainer Ring. (8) Saturate the Wick Pad with the proper Electrolyte. Select the proper Electrolyte from the chart on page 5. (9) Place Stencil with the legend reading REVERSED over Wick Pad

and secure a second Retainer Ring. (Stencil may also be secured by a Locating Plate, which is milled to fit the part).* (10) Set the ON-OFF Switch to ON position. (11) Place part to be marked in fixture and ground by touching part

with either the Hand Ground, Finger Ground, or with the alligator

clip. NOTE: Etching may be accomplished by rolling the part

across the stencil with Hand Ground or by placing the part in the

Locating Plate and grounding with the Hand Ground or Finger Ground. (12) After marking each part, thoroughly clean the parts with APC

Cleaner by wetting a clean shop cloth with the Cleaner and rubbing the part, making sure that none of the Electrolyte is left

on the part, or by immersing the part in a small open container filled with APC Cleaner. (13) After cleaning the parts thoroughly , dry them with a clean dry cloth. (14) After marking is completed, turn the ON-OFF switch to OFF. Unplug the BLACK and RED cords from their receptacles. (15) Remove the Wick Pad from the graphite block and wash

thoroughly with water. Wick Pads are reusable if they wash out

reasonably clean.

(16) With water, thoroughly rinse the Bench Fixture, Retainer Rings, Hand Ground and any other material that came in contact with the Electrolyte. (17) Dry the above mentioned items with a clean, dry cloth. (18) Discard all used Electrolyte and Cleaner. NOTE: Never pour used Electrolyte and Cleaner back into the bottles as the oxidation from the parts will contaminate the fresh solutions. (19) After all these steps have been followed, your equipment and supplies will be ready for use the next time.

(NORMAL ETCH ONLY)

(1) Plug the line cord connected to the back of the Power Unit into a 110/120 VAC outlet only. Converters are available on request for 220/240 VAC. (2) Plug the BLACK cord into the BLACK (MARK) receptacle: the opposite end of the cord into the Bench Fixture. (3) Plug the RED Cord into the RED (GROUND) receptacle; slide the alligator clip off the opposite end and slide on the Hand Ground. (4) Set the AC-DC Switch on AC for most metals and DC for Aluminum and Black

Oxide. AC produces a black mark; DC produces a frosted or clear mark.

(5) Set the Normal/Deep-Etch Switch on NORMAL.

LOCATING PLATE

WING NUT

RETAINER RING

STENCIL

WICK PAD

SPACER

MARKING BLOCK

BENCH FIXTURE BASE

SCREWS

RECEPTACLE BOLT

* See back cover for Die-Impression Stencil instructions.

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Page 6

ELECTROLYTES

MARKING METHODS' laboratory controlled Electrolytes are the result of years of research and development. They are carefully formulated and cataloged by formula and batch number to mark varied metals and surface treatments. The Electrolytes are buffered salt solutions, pH balanced, and are completely harmless to parts and surrounding equipment when used as directed.

METALS, ALLOYS & PLATINGS

ELECTROLYTE

FOR

Aluminum (most alloys) Aluminum with high magnesium or silica Aluminum (to be anodized) Aluminum Bronze Beryllium Beryllium Copper Black Oxide on Steel Black Oxide on Stainless Black Phosphate Brass & Bronze Cadmium Plate on Steel Carbides Chrome Plate-hard Chrome Plate-decorative Cobalt Alloys, Stellites Copper & alloys Copper Nickel ( cupro-nickel) Damascus Discaloy Dow coating (Parkerized) Electroless Nickel Plate Gold and Gold Plate Gold and Gold Plate Hastelloy Haynes 25 (Stellite) Haynes 188 Inconnel Inconnel 718 & 750 Invar Iron Lead and alloys Magnesium & alloys Molybdenum Monel & K Monel Nickel & alloys Nickel Plating on Brass & Copper Nickel Plating on Steel & Aluminum Nickel Silver Niobium Nitraloy Silver & Sterling Silver Plate Sintered Copper Tin Stainless Steel (300 & 400 series) Steels-low carbon & mild Steels-high alloy, tool & saw steel Tin & Tin Plate Titanium Titanium Nitrate Tungsten (pure) Tungsten Carbide Waspaloy Zinc & Zinc Plate Zirconium

NUCLEAR GRADE ELECTROLYTES (non-chloride or halogen free) can be furnished that contain less then 250 ppm of chlorides (halogens), sulfur, mercury, copper, zinc, and lead. These Electrolytes can be certified to meet MIL STD's 767 and 792 when requested. Use a light oil film (CPO) prior to marking on sand or grit blasted surfaces to prevent blurring. Oil fills the open grain surface of the metal. This procedure is also very effective before marking metals or plating that stain easily. Do not use gold (DF2) stencil for this application. Submit sample parts to our laboratory for Electrolyte evaluation of particularly difficult applications. *NOTE: POWER UNIT SETTINGS FOR ALL DEEP ETCH MARKING SHOULD BE DC AND DEEP ETCH WITH RHEOSTAT AT 3 OR HIGHER. AMPLE ELECTROLYTE MUST ALWAYS BE USED. DEEP ETCHING MAY PRODUCE A FUZZY OR BLURRED MARK. A LIGHT BUFFING AFTER CLEANING WILL SHARPEN THE LINE DEFINITION.

See applicable MSDS for safety information.

A10 MSC1, MSC5

B20, B10 B20, MSC7, F10 B20 MSC3, F30 MSC1 F30 B20, MSC5, B10 MSC5,B20, B10, F20 C30, C10, MSC4 MSC1, MSC7 MSC1, MSC4, MSC7 MSC1, F10, F30, MSC7 B20,B10,MSC3,MSC5 MSC5, F30, F20, B20 C10 , MSC4 MSC4, F30

MSC7 OR F30 MSC1, F10, C10

MSC4, MSC3, F20 MSC7, MSC1,MSC4 MSC5, F10 MSC4, C10, F20 MSC4, F30, F10

MSC4, MSC7, MSC1,F30

MSC4, F10 MSC3, F30 MSC5, MSC1 F10, C10 MSC1, C10 MSC7, F30 MSC7, B20, C10 MSC4, F30, F20 MSC5, B20, F20 MSC3, T10 MSC4, C10

MSC8, B10 B10, B20 MSC1, MSC4, MSC7,B20 MSC4, MSC1, C10, B20 MSC4, C10 MSC5, F20 T10, MSC7, C10 MSC2 T10, F20, C30 C30, MSC4 MSC3, B10 MSC2, MSC1, B10, F20 T10, C10

NORMAL ETCH

POWER UNIT

DC DC DC AC AC AC DC DC DC AC AC AC DC AC AC AC AC AC AC DC AC AC DC AC DC AC AC AC AC AC AC AC AC AC AC AC AC AC AC AC DC AC AC AC AC AC AC AC AC AC AC AC AC AC

COLOR

SETTING

OF MARK

Black

MSC1

White

MSC1

Black

MSC1

Black

MSC3, MSC5

Black

MSC3, MSC5

Black

MSC3, MSC7 White White White Black

MSC3, MSC5 Black Black

F30 Clear

F30 Black Black

MSC7, MSC4 Black

MSC5, MSC3 Black Dark

C10, MSC4 Black Clear

C10 Dark Dark Clear

MSC1,F10,C10 Black

MSC4 Clear

MSC7 Black

MSC4 Black

MSC4, 59NC Dark Black

MSC4 Black Clear

MSC1 Black Black Black Black Black Black Dark Black

B10 Black

B10 Black Black

MSC1 Black

MSC4, C10, MSC1 Black

MSC4, C10 Black Dark

MSC3,F30,F20

Dark Dark

B10,59NC,MSC3,F30

Dark Dark Black Dark

MSC1

ELECTROLYTE

FOR

Allow a few seconds for color to develop before cleaning

DEEP ETCH *

Black not possible unless lacquer filled Deep etch BEFORE anodizing (minimum .002)

Reduce amperage if blurring occurs

Use low amperage, oil part after cleaning Use low amperage If coating is heavy, parts should be deep etched

Allow time for oxide to stabilize before cleaning

Blotting action improves frosted contrast

Deep etch BEFORE unless coating is very thin

Dark mark usually not stable

Use minimum amount of Electrolyte (work dry)

Use high amperage

Use low amperage, work dry, wait before cleaning

Use low amperage & minimum Electrolyte Use low amperage & minimum Electrolyte Use DC if AC not dark enough & minimum Electrolyte Use DC if AC not dark enough

Allow time for oxide to stabilize before cleaning

COMMENTS

MARKING METHODS, INC. ALHAMBRA,CA 91803-1531 • 626-282-8823 • FAX 626-576-7564 • email: [email protected] • VISIT OUR WEB SITE AT: www.markingmethods.com

______________________________

Page 7

HP12575 HP12515 HP2575 HP2515 HP515 HP1020

HP2575DE HP515DE HP1020DE

REPLACEMENT PARTS

and HAND PAD ACCESSORIES

Dimensions are actual marking area of applicator

(Pkg. of 10)

SCREENCLOTH SCREENCLOTH SCREENCLOTH SCREENCLOTH SCREENCLOTH SCREENCLOTH

(Pkg. of 10)

WICKS WICKS WICKS

HAND PAD HAND PAD HAND PAD HAND PAD HAND PAD HAND PAD

HAND PAD HAND PAD HAND PAD

NORMAL ETCH

1/8" x 3/4"

1/8" x 1-1/2"

1/4" x 3/4" 1/4" x 1-1/2" 1/2" x 1-1/2"

1" x 2"

DEEP ETCH

1/4" x 3/4" 1/2" x 1-1/2"

1" x 2"

DEEP ETCH WICKS

HPW

HPS12575 HPS12515 HPS2575 HPS2515 HPS515 HPS1020

HPW2575DE HPW515DE HPW1020DE

NORMAL ETCH

HAND PAD

1/2" x 1-1/2"

1/4" x 3/4"

1/4" x 1-1/2"

SCREENCLOTH

HAND PAD

HPS

HAND PAD

BF1520-3 BF2045-3 BF4060-3

CT2535 CT2535-3

RO2B5 R05B5 R09B5 R12B5 R02A3

L07B5 L01B5 L08B5 L01A3

1" x 2"

1/2" x 1-1/2" 1/4" x 3/4"

BENCH FIXTURE WICK PADS

BENCH FIXTURE WICK PAD 1-1/2" x 2" (Pkg. of 10) BENCH FIXTURE WICK PAD 2" x 4-1/2 " (Pkg. of 10) BENCH FIXTURE WICK PAD 4" x 6" (Pkg. of 10)

OTHER ACCESSORIES

STENCIL CLEANER TRAY STENCIL CLEANER TRAY WICK PADS (Pkg. of 10)

DIE-IMPRESSION STENCILS

DIRECTIONS FOR USE:

side of stencil with backing underneath. Remove backing to mark with stencil.

Use a typewriter set on "stencil" position. Type on colored

ROLLS

2-1/2 inch x 20 feet (Heavy duty opaque BLUE) 2-1/2 inch x 750 feet (Heavy duty opaque BLUE) 3-3/4 inch x 20 feet (Heavy duty opaque BLUE) 3-3/4 inch x 750 feet (Heavy duty opaque BLUE) 2-1/2 inch x 20 feet (Heavy duty opaque GREEN)

BOXES

3 inch x 6 inch (Heavy duty opaque BLUE) 2-1/2 inch x 7 inch (Heavy duty opaque BLUE) 3-3/4 inch x 7 inch (Heavy duty opaque BLUE) 2-1/2 inch x 7 inch (Heavy duty opaque GREEN)

(100 sheets per box)

1" x 2"

SCREENCLOTH

HPS

1-1/2" x 2"

4" x 6"

STENCIL CLEANER TRAY & WICK PAD

2" x 4-1/2"

BENCH FIXTURE WICK PADS

CORD SET

300

3-WIRE COLOR-CODED CORD SET

ordered in a 6 ft. length (300-6), 8 ft. length (300-8), etc.

ELECTROLYTES

SEE CHART

Available in quart bottles, 12-quart cases, 5 and 55-gallon containers. Refer to the

ELECTROLYTE CHART on page 5 for recommended formulas.

CLEANERS

APC APCW NO90

CPO

WSP

An ALL PURPOSE CLEANER (light amber color) Parts cleaning wipes pre-moistened with APC cleaner CONCENTRATED CLEANER (Milky white color) has a light oil base that leaves a protective film on parts. (Recommended when cleaning corrosive metal parts). CORROSION PREVENTATIVE OIL is an excellent in-plant oil for protection of parts after they have been marked, cleaned and dried (only necessary for use on parts that require protection from normal atmospheric conditions). WATER SOLUBLE PROTECTANT is used in same application as CPO but contains no solvent base.

Standard length is 3-1/2 ft., but may also be

-6-

DIE IMPRESSION STENCILS

CORD SET

INC

ELECTROLYTES & CLEANERS

INC

APCW

wipes

Page 8

SPECIAL INSTRUCTIONS and ANSWERS TO PROBLEMS

PARTS BECOME FOGGY, CORRODED, CONTAMINATED OR BROWN FINGERPRINTS APPEAR.

•

MARK IS NOT LEGIBLE OR DARK ENOUGH.

•

MARK ON ALUMINUM DISAPPEARS AFTERANODIZING.

•

BLACK OXIDE WHITE MARK IS NOT LEGIBLE OR IS INCOMPLETE.

•

DEEP ETCH REQUIRES A DARK MARK.

•

POWER UNIT INDICATOR LIGHT GLOWS BUT NO MARK IS MADE.

•

Parts were improperly cleaned. Use APC Cleaner. NEVER oil parts without cleaning & drying first.

Incorrect Electrolyte. Incorrect current setting. Dwell time too short.

Part must be DEEP-ETCHED a minimum of .002" deep prior to anodizing. Part cannot be marked after anodizing.

Try a different Electrolyte. Rub a light abrasive over mark. Use DC current.

After etching desired depth and before moving stencil, switch DC to AC and DEEP ETCH to NORMAL ETCH. Then blot several more times.

Replace cord set.

ANY INDICATION OF OVERHEATING OR SMOKE

•

TYPING ON DIE-IMPRESSION STENCIL.

•

The MARK 300 POWER UNIT is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. This warranty does not cover defects resulting from accident; alteration, improper use, abuse, tampering or failure of the user to follow operating instructions.

This warranty is in lieu of all other, warranties expressed, implied or statutory and all other obligations or liabilities of Marking Methods, Inc.

MARKING METHODS, INC.

email: [email protected] www.markingmethods.com

301 SOUTH RAYMOND AVENUE • ALHAMBRA CA 91803-1531 • (626) 282-8823 • FAX (626) 576-7564

Disconnect unit from wall socket immediately and call manufacturer.

Set the typewriter on stencil position or remove the ribbon. Type on the colored side of the stencil, then remove the backing to mark.

W ARRAN TY

CAT. NO. M3IM - 10/00