IM775-A
MK 091-0612
WIRE FEEDER
October 2007
RETURN TO MAIN MENU
OPERATOR’S MANUAL
®
Cobramatic
K2259-1
For use with code 11480
Safety Depends on You
Lincoln arc welding equipment is
designed and built with safety
in mind. However, your overall
safety can be increased by proper
installation...and thoughtful oper-
ation on your part.
DO NOT INSTALL, OPERATE
OR REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
Copyright © 2007 Lincoln Global Inc.
®
ꢀꢁꢂꢃꢄꢀꢂ
ꢅꢀꢅꢃꢆ ꢁꢃ
World’s Leader in Welding and Cutting Products
Sales and Service through Subsidiaries and Distributors Worldwide
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
Download from Www.Somanuals.com. All Manuals Search And Download.
Table of Contents
Safety Guidelines .................................................................................................i-vi
Installation ................................................................................................. Section A
Technical Specifications............................................................................................................... 1
Machine Grounding...................................................................................................................... 1
Mounting Location........................................................................................................................ 1
Input Power Connections............................................................................................................. 1
Wire Threading Procedure........................................................................................................... 1
Welding Gun Connections ........................................................................................................... 3
Operations.................................................................................................Section B
General Description ..................................................................................................................... 3
Recommended Processes and Equipment.................................................................................. 4
Controls and Settings................................................................................................................... 4
PosaStart® Operating Procedure ................................................................................................. 6
Remote Operation........................................................................................................................ 7
Accessories...............................................................................................Section C
Optional Kits................................................................................................................................. 7
Maintenance..............................................................................................Section D
Routine Maintenance ................................................................................................................... 7
Testing the Feeder ....................................................................................................................... 8
Testing the Gun............................................................................................................................ 8
Troubleshooting.........................................................................................Section E
Troubleshooting Guide................................................................................................................. 9
Diagrams/Parts List ..................................................................................Section F
Diagrams Table of Contents........................................................................................................11
Main P.C. Board Connections .................................................................................................... 13
Cabinet and Gun Hook-Up......................................................................................................... 14
Mechanical................................................................................................................................. 15
Electrical..................................................................................................................................... 23
Safety Warnings
Warranty
Cobramatic® Owner’s Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
Declaration of Conformity for
European Community (CE) Products
Note
This information is provided for units with CE certification (see rating label on unit).
Manufacturer’s Name:
MK Products, Inc.
16882 Armstrong Ave.
Irvine, CA 92606
Declares that the product:
conforms to the following Directives and Standards:
Cobramatic®
Directives
Low Voltage Directive: 73/23/EEC
Electromagnetic Compatibility (EMC) Directive: 89/336/EEC
Standards
Arc Welding Equipment Part I: Welding Power Sources: IEC 60974-1
(September 1998 - Second Edition)
Arc Welding Equipment: Wirefeed Systems: IEC 974-5
(September 1997 - Draft Revision)
Degrees of Protection Provided by Enclosures (IP Code): IEC 529:1989
(November 1989 - First Edition)
Insulation Coordination For Equipment With Low-Voltage Systems:
Part I: Principles, Requirements and Tests: IEC 664-1: 1992
(October 1992 - First Edition)
Electromagnetic Compatibility, (EMC): EN 50199
(August 1995)
Torches And Guns For Arc Welding, EN 50078
Cobramatic® Owner’s Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
Cobramatic® Safety - page i
Download from Www.Somanuals.com. All Manuals Search And Download.
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ꢓꢓ
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(ꢁꢂꢁ ) ꢅ ꢅꢇꢅꢐꢊꢌꢍꢈꢅ ꢂꢏꢈ ꢉꢍꢌꢕ *ꢍꢌ ꢖꢌꢍꢓꢏꢈ+ ꢐꢆꢌꢐꢓꢆꢊꢄ
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.ꢍ ꢏꢍꢊ ꢊꢍꢓꢐ ꢊ ꢅꢄꢅ , ꢍꢊ- ꢋꢂꢌꢊꢄ ꢉꢆꢊ ꢒꢍꢓꢌ ꢗꢂꢌꢅ
ꢄꢕꢆꢏ ꢍꢌ ꢉꢅꢊ ꢐꢇꢍꢊ ꢆꢏꢖꢁ /ꢅꢂꢌ ꢈꢌꢒ% ꢍꢇꢅꢜꢎꢌꢅꢅ
ꢖꢇꢍꢑꢅꢄ ꢊꢍ ꢆꢏꢄꢓꢇꢂꢊꢅ ꢂꢏꢈꢄꢁ
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ꢄꢐꢌꢅꢅꢏꢆꢏꢖ ꢂꢏꢈ&ꢍꢌ ꢉꢂꢌꢏ ꢊ ꢅꢔ ꢏꢍꢊ ꢊꢍ ꢉꢂꢊꢐ ꢊ ꢅ ꢂꢌꢐ ꢏꢍꢌ ꢅ'ꢋꢍꢄꢅ
ꢊ ꢅꢔꢄꢅꢇꢑꢅꢄ ꢊꢍ ꢊ ꢅ ꢂꢌꢐ ꢌꢂꢒꢄ ꢍꢌ ꢊꢍ ꢍꢊ ꢄꢋꢂꢊꢊꢅꢌ ꢍꢌ ꢔꢅꢊꢂꢇꢁ
ꢎꢆ ꢕꢕꢓꢖꢓꢗꢆ ꢖꢗ ꢖꢘꢙ ꢆꢗꢉꢚ ꢔ ꢛ ꢙꢖ! "ꢉꢙꢅ ꢈꢖꢓꢗꢆꢛ# ꢓ $ꢙꢔꢕꢓꢆ
ꢚꢈꢛꢖ ꢇꢙ "ꢙꢉ ꢗꢉꢚꢙꢕ ꢈꢆꢕꢙꢉ ꢙꢔꢙꢅꢖꢉꢓꢅ ꢔꢔ! ꢘ & ꢉꢕꢗꢈꢛ
ꢅꢗꢆꢕꢓꢖꢓꢗꢆꢛ 'ꢓꢆ ꢕ ꢚ" ꢔꢗꢅ ꢖꢓꢗꢆꢛ ꢗꢉ $ꢘꢓꢔꢙ $ꢙ ꢉꢓꢆ% $ꢙꢖ
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%
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ꢂ1ꢂꢌꢈꢍꢓꢄ ꢊꢍ ꢅꢂꢇꢊ ꢁ ꢙꢑꢍꢆꢈ ꢗꢌꢅꢂꢊ ꢆꢏꢖ ꢊ ꢅꢄꢅ
ꢖꢘꢙ ꢗꢔꢔꢗ$ꢓꢆ% ꢙ+ꢈꢓ"ꢚꢙꢆꢖ,
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.
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ꢊ ꢅ ꢅ7ꢓꢆꢋꢔꢅꢏꢊ% ꢔꢂꢆꢏꢊꢅꢏꢂꢏꢐꢅ ꢍꢎ ꢊ ꢅ ꢅ7ꢓꢆꢋꢔꢅꢏꢊ ꢂꢏꢈ ꢊ ꢅ ꢄꢋꢅꢜ
ꢐꢆꢎꢆꢐ ꢉꢅꢇꢈꢆꢏꢖ ꢋꢌꢍꢐꢅꢈꢓꢌꢅ ꢂꢏꢈ ꢂꢋꢋꢇꢆꢐꢂꢊꢆꢍꢏ ꢆꢏꢑꢍꢇꢑꢅꢈꢁ /ꢍꢌꢕꢅꢌ
ꢅ'ꢋꢍꢄꢓꢌꢅ ꢇꢅꢑꢅꢇ ꢄ ꢍꢓꢇꢈ ꢗꢅ ꢐ ꢅꢐꢕꢅꢈ ꢓꢋꢍꢏ ꢆꢏꢄꢊꢂꢇꢇꢂꢊꢆꢍꢏ ꢂꢏꢈ
ꢋꢅꢌꢆꢍꢈꢆꢐꢂꢇꢇꢒ ꢊ ꢅꢌꢅꢂꢎꢊꢅꢌ ꢊꢍ ꢗꢅ ꢐꢅꢌꢊꢂꢆꢏ ꢆꢊ ꢆꢄ ꢉꢆꢊ ꢆꢏ ꢂꢋꢋꢇꢆꢐꢂꢗꢇꢅ
(ꢁꢎꢁ 0ꢂꢆꢏꢊꢂꢆꢏ ꢊ ꢅ ꢅꢇꢅꢐꢊꢌꢍꢈꢅ ꢍꢇꢈꢅꢌ% ꢉꢍꢌꢕ ꢐꢇꢂꢔꢋ% ꢉꢅꢇꢈꢆꢏꢖ ꢐꢂꢗꢇꢅ ꢂꢏꢈ
ꢉꢅꢇꢈꢆꢏꢖ ꢔꢂꢐ ꢆꢏꢅ ꢆꢏ ꢖꢍꢍꢈ% ꢄꢂꢎꢅ ꢍꢋꢅꢌꢂꢊꢆꢏꢖ ꢐꢍꢏꢈꢆꢊꢆꢍꢏꢁ 3ꢅꢋꢇꢂꢐꢅ
ꢈꢂꢔꢂꢖꢅꢈ ꢆꢏꢄꢓꢇꢂꢊꢆꢍꢏꢁ
(ꢁꢖꢁ ꢚꢅꢑꢅꢌ ꢈꢆꢋ ꢊ ꢅ ꢅꢇꢅꢐꢊꢌꢍꢈꢅ ꢆꢏ ꢉꢂꢊꢅꢌ ꢎꢍꢌ ꢐꢍꢍꢇꢆꢏꢖꢁ
8ꢛꢘꢙ $9: ꢂꢏꢈ ꢙ
;2 ꢘ ):< ꢇꢆꢔꢆꢊꢄꢁ
(ꢁ ꢁ ꢚꢅꢑꢅꢌ ꢄꢆꢔꢓꢇꢊꢂꢏꢅꢍꢓꢄꢇꢒ ꢊꢍꢓꢐ ꢅꢇꢅꢐꢊꢌꢆꢐꢂꢇꢇꢒ , ꢍꢊ- ꢋꢂꢌꢊꢄ ꢍꢎ
ꢅꢇꢅꢐꢊꢌꢍꢈꢅ ꢍꢇꢈꢅꢌꢄ ꢐꢍꢏꢏꢅꢐꢊꢅꢈ ꢊꢍ ꢊꢉꢍ ꢉꢅꢇꢈꢅꢌꢄ ꢗꢅꢐꢂꢓꢄꢅ ꢑꢍꢇꢊꢂꢖꢅ
ꢗꢅꢊꢉꢅꢅꢏ ꢊ ꢅ ꢊꢉꢍ ꢐꢂꢏ ꢗꢅ ꢊ ꢅ ꢊꢍꢊꢂꢇ ꢍꢎ ꢊ ꢅ ꢍꢋꢅꢏ ꢐꢆꢌꢐꢓꢆꢊ ꢑꢍꢇꢊꢂꢖꢅ
ꢍꢎ ꢗꢍꢊ ꢉꢅꢇꢈꢅꢌꢄꢁ
6ꢁꢐꢁ .ꢍ ꢏꢍꢊ ꢉꢅꢇꢈ ꢆꢏ ꢇꢍꢐꢂꢊꢆꢍꢏꢄ ꢏꢅꢂꢌ ꢐ ꢇꢍꢌꢆꢏꢂꢊꢅꢈ ꢒꢈꢌꢍꢐꢂꢌꢗꢍꢏ ꢑꢂꢋꢍꢌꢄ
ꢐꢍꢔꢆꢏꢖ ꢎꢌꢍꢔ ꢈꢅꢖꢌꢅꢂꢄꢆꢏꢖ% ꢐꢇꢅꢂꢏꢆꢏꢖ ꢍꢌ ꢄꢋꢌꢂꢒꢆꢏꢖ ꢍꢋꢅꢌꢂꢊꢆꢍꢏꢄꢁ
) ꢅ ꢅꢂꢊ ꢂꢏꢈ ꢌꢂꢒꢄ ꢍꢎ ꢊ ꢅ ꢂꢌꢐ ꢐꢂꢏ ꢌꢅꢂꢐꢊ ꢉꢆꢊ ꢄꢍꢇꢑꢅꢏꢊ ꢑꢂꢋꢍꢌꢄ ꢊꢍ
ꢎꢍꢌꢔ ꢋ ꢍꢄꢖꢅꢏꢅ% ꢂ ꢆꢖ ꢇꢒ ꢊꢍ'ꢆꢐ ꢖꢂꢄ% ꢂꢏꢈ ꢍꢊ ꢅꢌ ꢆꢌꢌꢆꢊꢂꢊꢆꢏꢖ ꢋꢌꢍꢈꢜ
ꢓꢐꢊꢄꢁ
(ꢁꢆꢁ / ꢅꢏ ꢉꢍꢌꢕꢆꢏꢖ ꢂꢗꢍꢑꢅ ꢎꢇꢍꢍꢌ ꢇꢅꢑꢅꢇ% ꢓꢄꢅ ꢂ ꢄꢂꢎꢅꢊꢒ ꢗꢅꢇꢊ ꢊꢍ ꢋꢌꢍꢊꢅꢐꢊ
ꢒꢍꢓꢌꢄꢅꢇꢎ ꢎꢌꢍꢔ ꢂ ꢎꢂꢇꢇ ꢄ ꢍꢓꢇꢈ ꢒꢍꢓ ꢖꢅꢊ ꢂ ꢄ ꢍꢐꢕꢁ
6ꢁꢈꢁ ꢛ ꢆꢅꢇꢈꢆꢏꢖ ꢖꢂꢄꢅꢄ ꢓꢄꢅꢈ ꢎꢍꢌ ꢂꢌꢐ ꢉꢅꢇꢈꢆꢏꢖ ꢐꢂꢏ ꢈꢆꢄꢋꢇꢂꢐꢅ ꢂꢆꢌ ꢂꢏꢈ
ꢐꢂꢓꢄꢅ ꢆꢏ4ꢓꢌꢒ ꢍꢌ ꢈꢅꢂꢊ ꢁ ꢙꢇꢉꢂꢒꢄ ꢓꢄꢅ ꢅꢏꢍꢓꢖ ꢑꢅꢏꢊꢆꢇꢂꢊꢆꢍꢏ%
ꢅꢄꢋꢅꢐꢆꢂꢇꢇꢒ ꢆꢏ ꢐꢍꢏꢎꢆꢏꢅꢈ ꢂꢌꢅꢂꢄ% ꢊꢍ ꢆꢏꢄꢓꢌꢅ ꢗꢌꢅꢂꢊ ꢆꢏꢖ ꢂꢆꢌ ꢆꢄ ꢄꢂꢎꢅꢁ
(ꢁ4ꢁ ꢙꢇꢄꢍ ꢄꢅꢅ ꢊꢅꢔꢄ 5ꢁꢐꢁ ꢂꢏꢈ "ꢁ
6ꢁꢅꢁ 3ꢅꢂꢈ ꢂꢏꢈ ꢓꢏꢈꢅꢌꢄꢊꢂꢏꢈ ꢊ ꢅ ꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢅꢌ=ꢄ ꢆꢏꢄꢊꢌꢓꢐꢊꢆꢍꢏꢄ ꢎꢍꢌ ꢊ ꢆꢄ
ꢅ7ꢓꢆꢋꢔꢅꢏꢊ ꢂꢏꢈ ꢊ ꢅ ꢐꢍꢏꢄꢓꢔꢂꢗꢇꢅꢄ ꢊꢍ ꢗꢅ ꢓꢄꢅꢈ% ꢆꢏꢐꢇꢓꢈꢆꢏꢖ ꢊ ꢅ
ꢔꢂꢊꢅꢌꢆꢂꢇ ꢄꢂꢎꢅꢊꢒ ꢈꢂꢊꢂ ꢄ ꢅꢅꢊ *0ꢛ
.
ꢛ+ ꢂꢏꢈ ꢎꢍꢇꢇꢍꢉ ꢒꢍꢓꢌ
ꢅꢔꢋꢇꢍꢒꢅꢌ=ꢄ ꢄꢂꢎꢅꢊꢒ ꢋꢌꢂꢐꢊꢆꢐꢅꢄꢁ 0ꢛ.ꢛ ꢎꢍꢌꢔꢄ ꢂꢌꢅ ꢂꢑꢂꢆꢇꢂꢗꢇꢅ ꢎꢌꢍꢔ
ꢒꢍꢓꢌ ꢉꢅꢇꢈꢆꢏꢖ ꢈꢆꢄꢊꢌꢆꢗꢓꢊꢍꢌ ꢍꢌ ꢎꢌꢍꢔ ꢊ ꢅ ꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢅꢌꢁ
6ꢁꢎꢁ ꢙꢇꢄꢍ ꢄꢅꢅ ꢆꢊꢅꢔ >ꢁꢗꢁ
ꢙꢃ2 ?5
Cobramatic® Safety - page ii
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ꢓꢓꢓ
ꢄꢀ2ꢋꢍꢃ
0ꢋꢌ.ꢎ45 ꢆꢕ ꢂ3ꢍꢍꢎ45
ꢂꢃꢌꢎ4.ꢋꢁ ꢚ ! ꢙ6"ꢔꢗꢕꢙ ꢓꢓꢓ
ꢓ ꢕ ꢚ %ꢙꢕꢊ
ꢄ7ꢀꢁꢑꢄ ꢅ ꢆ
5ꢅꢁꢂꢁ ꢈꢛꢙ ꢓꢉꢙ ꢗꢉ ꢙ6"ꢔꢗꢛꢓꢗꢆꢊ
3ꢅꢔꢍꢑꢅ ꢎꢆꢌꢅ ꢂ1ꢂꢌꢈꢄ ꢎꢌꢍꢔ ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ ꢂꢌꢅꢂꢁ
ꢎ ꢊ ꢆꢄ ꢆꢄ ꢏꢍꢊ ꢋꢍꢄꢄꢆꢗꢇꢅ% ꢐꢍꢑꢅꢌ ꢊ ꢅꢔ ꢊꢍ ꢋꢌꢅꢑꢅꢏꢊ
ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ ꢄꢋꢂꢌꢕꢄ ꢎꢌꢍꢔ ꢄꢊꢂꢌꢊꢆꢏꢖ ꢂ ꢎꢆꢌꢅꢁ
#ꢁꢂꢁ ꢃꢄꢅ ꢍꢏꢇꢒ ꢐꢍꢔꢋꢌꢅꢄꢄꢅꢈ ꢖꢂꢄ ꢐꢒꢇꢆꢏꢈꢅꢌꢄ
ꢐꢍꢏꢊꢂꢆꢏꢆꢏꢖ ꢊ ꢅ ꢐꢍꢌꢌꢅꢐꢊ ꢄ ꢆꢅꢇꢈꢆꢏꢖ ꢖꢂꢄ ꢎꢍꢌ ꢊ ꢅ
ꢋꢌꢍꢐꢅꢄꢄ ꢓꢄꢅꢈ ꢂꢏꢈ ꢋꢌꢍꢋꢅꢌꢇꢒ ꢍꢋꢅꢌꢂꢊꢆꢏꢖ
ꢌꢅꢖꢓꢇꢂꢊꢍꢌꢄ ꢈꢅꢄꢆꢖꢏꢅꢈ ꢎꢍꢌ ꢊ ꢅ ꢖꢂꢄ ꢂꢏꢈ
3ꢅꢔꢅꢔꢗꢅꢌ ꢊ ꢂꢊ ꢉꢅꢇꢈꢆꢏꢖ ꢄꢋꢂꢌꢕꢄ ꢂꢏꢈ
ꢍꢊ
ꢋꢌꢅꢄꢄꢓꢌꢅ ꢓꢄꢅꢈꢁ ꢙꢇꢇ ꢍꢄꢅꢄ% ꢎꢆꢊꢊꢆꢏꢖꢄ% ꢅꢊꢐꢁ ꢄ ꢍꢓꢇꢈ ꢗꢅ ꢄꢓꢆꢊꢂꢗꢇꢅ ꢎꢍꢌ
ꢔꢂꢊꢅꢌꢆꢂꢇꢄ ꢎꢌꢍꢔ ꢉꢅꢇꢈꢆꢏꢖ ꢐꢂꢏ ꢅꢂꢄꢆꢇꢒ ꢖꢍ ꢊ ꢌꢍꢓꢖ ꢄꢔꢂꢇꢇ ꢐꢌꢂꢐꢕꢄ
ꢂꢏꢈ ꢍꢋꢅꢏꢆꢏꢖꢄ ꢊꢍ ꢂꢈ4ꢂꢐꢅꢏꢊ ꢂꢌꢅꢂꢄꢁ ꢙꢑꢍꢆꢈ ꢉꢅꢇꢈꢆꢏꢖ ꢏꢅꢂꢌ
ꢒꢈꢌꢂꢓꢇꢆꢐ ꢇꢆꢏꢅꢄꢁ ꢘꢂꢑꢅ ꢂ ꢎꢆꢌꢅ ꢅ'ꢊꢆꢏꢖꢓꢆꢄ ꢅꢌ ꢌꢅꢂꢈꢆꢇꢒ ꢂꢑꢂꢆꢇꢂꢗꢇꢅꢁ
ꢊ ꢅ ꢂꢋꢋꢇꢆꢐꢂꢊꢆꢍꢏ ꢂꢏꢈ ꢔꢂꢆꢏꢊꢂꢆꢏꢅꢈ ꢆꢏ ꢖꢍꢍꢈ ꢐꢍꢏꢈꢆꢊꢆꢍꢏꢁ
#ꢁꢗꢁ ꢙꢇꢉꢂꢒꢄ ꢕꢅꢅꢋ ꢐꢒꢇꢆꢏꢈꢅꢌꢄ ꢆꢏ ꢂꢏ ꢓꢋꢌꢆꢖ ꢊ ꢋꢍꢄꢆꢊꢆꢍꢏ ꢄꢅꢐꢓꢌꢅꢇꢒ
ꢐ ꢂꢆꢏꢅꢈ ꢊꢍ ꢂꢏ ꢓꢏꢈꢅꢌꢐꢂꢌꢌꢆꢂꢖꢅ ꢍꢌ ꢎꢆ'ꢅꢈ ꢄꢓꢋꢋꢍꢌꢊꢁ
5ꢁꢗꢁ / ꢅꢌꢅ ꢐꢍꢔꢋꢌꢅꢄꢄꢅꢈ ꢖꢂꢄꢅꢄ ꢂꢌꢅ ꢊꢍ ꢗꢅ ꢓꢄꢅꢈ ꢂꢊ ꢊ ꢅ 4ꢍꢗ ꢄꢆꢊꢅ%
ꢄꢋꢅꢐꢆꢂꢇ ꢋꢌꢅꢐꢂꢓꢊꢆꢍꢏꢄ ꢄ ꢍꢓꢇꢈ ꢗꢅ ꢓꢄꢅꢈ ꢊꢍ ꢋꢌꢅꢑꢅꢏꢊ ꢂ1ꢂꢌꢈꢍꢓꢄ
ꢄꢆꢊꢓꢂꢊꢆꢍꢏꢄꢁ 3ꢅꢎꢅꢌ ꢊꢍ ,ꢛꢂꢎꢅꢊꢒ ꢆꢏ /ꢅꢇꢈꢆꢏꢖ ꢂꢏꢈ ;ꢓꢊꢊꢆꢏꢖ- *ꢙꢚꢛ
ꢛꢊꢂꢏꢈꢂꢌꢈ !ꢀEꢁ>+ ꢂꢏꢈ ꢊ ꢅ ꢍꢋꢅꢌꢂꢊꢆꢏꢖ ꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏ ꢎꢍꢌ ꢊ ꢅ
ꢅ7ꢓꢆꢋꢔꢅꢏꢊ ꢗꢅꢆꢏꢖ ꢓꢄꢅꢈꢁ
#ꢁꢐꢁ ;ꢒꢇꢆꢏꢈꢅꢌꢄ ꢄ ꢍꢓꢇꢈ ꢗꢅ ꢇꢍꢐꢂꢊꢅꢈ@
Aꢙꢉꢂꢒ ꢎꢌꢍꢔ ꢂꢌꢅꢂꢄ ꢉ ꢅꢌꢅ ꢊ ꢅꢒ ꢔꢂꢒ ꢗꢅ ꢄꢊꢌꢓꢐꢕ ꢍꢌ ꢄꢓꢗ4ꢅꢐꢊꢅꢈ ꢊꢍ
ꢋ ꢒꢄꢆꢐꢂꢇ ꢈꢂꢔꢂꢖꢅꢁ
Aꢙ ꢄꢂꢎꢅ ꢈꢆꢄꢊꢂꢏꢐꢅ ꢎꢌꢍꢔ ꢂꢌꢐ ꢉꢅꢇꢈꢆꢏꢖ ꢍꢌ ꢐꢓꢊꢊꢆꢏꢖ ꢍꢋꢅꢌꢂꢊꢆꢍꢏꢄ ꢂꢏꢈ
ꢂꢏꢒ ꢍꢊ ꢅꢌ ꢄꢍꢓꢌꢐꢅ ꢍꢎ ꢅꢂꢊ% ꢄꢋꢂꢌꢕꢄ% ꢍꢌ ꢎꢇꢂꢔꢅꢁ
5ꢁꢐꢁ / ꢅꢏ ꢏꢍꢊ ꢉꢅꢇꢈꢆꢏꢖ% ꢔꢂꢕꢅ ꢐꢅꢌꢊꢂꢆꢏ ꢏꢍ ꢋꢂꢌꢊ ꢍꢎ ꢊ ꢅ ꢅꢇꢅꢐꢊꢌꢍꢈꢅ
ꢐꢆꢌꢐꢓꢆꢊ ꢆꢄ ꢊꢍꢓꢐ ꢆꢏꢖ ꢊ ꢅ ꢉꢍꢌꢕ ꢍꢌ ꢖꢌꢍꢓꢏꢈꢁ ꢙꢐꢐꢆꢈꢅꢏꢊꢂꢇ ꢐꢍꢏꢊꢂꢐꢊ
ꢐꢂꢏ ꢐꢂꢓꢄꢅ ꢍꢑꢅꢌ ꢅꢂꢊꢆꢏꢖ ꢂꢏꢈ ꢐꢌꢅꢂꢊꢅ ꢂ ꢎꢆꢌꢅ ꢂ1ꢂꢌꢈꢁ
#ꢁꢈꢁ ꢚꢅꢑꢅꢌ ꢂꢇꢇꢍꢉ ꢊ ꢅ ꢅꢇꢅꢐꢊꢌꢍꢈꢅ% ꢅꢇꢅꢐꢊꢌꢍꢈꢅ ꢍꢇꢈꢅꢌ ꢍꢌ ꢂꢏꢒ ꢍꢊ ꢅꢌ
ꢅꢇꢅꢐꢊꢌꢆꢐꢂꢇꢇꢒ , ꢍꢊ- ꢋꢂꢌꢊꢄ ꢊꢍ ꢊꢍꢓꢐ ꢂ ꢐꢒꢇꢆꢏꢈꢅꢌꢁ
5ꢁꢈꢁ .ꢍ ꢏꢍꢊ ꢅꢂꢊ% ꢐꢓꢊ ꢍꢌ ꢉꢅꢇꢈ ꢊꢂꢏꢕꢄ% ꢈꢌꢓꢔꢄ ꢍꢌ ꢐꢍꢏꢊꢂꢆꢏꢅꢌꢄ ꢓꢏꢊꢆꢇ ꢊ ꢅ
ꢋꢌꢍꢋꢅꢌ ꢄꢊꢅꢋꢄ ꢂꢑꢅ ꢗꢅꢅꢏ ꢊꢂꢕꢅꢏ ꢊꢍ ꢆꢏꢄꢓꢌꢅ ꢊ ꢂꢊ ꢄꢓꢐ ꢋꢌꢍꢐꢅꢈꢓꢌꢅꢄ
ꢉꢆꢇꢇ ꢏꢍꢊ ꢐꢂꢓꢄꢅ ꢎꢇꢂꢔꢔꢂꢗꢇꢅ ꢍꢌ ꢊꢍ'ꢆꢐ ꢑꢂꢋꢍꢌꢄ ꢎꢌꢍꢔ ꢄꢓꢗꢄꢊꢂꢏꢐꢅꢄ
ꢆꢏꢄꢆꢈꢅꢁ ) ꢅꢒ ꢐꢂꢏ ꢐꢂꢓꢄꢅ ꢂꢏ ꢅ'ꢋꢇꢍꢄꢆꢍꢏ ꢅꢑꢅꢏ ꢊ ꢍꢓꢖ ꢊ ꢅꢒ ꢂꢑꢅ
ꢗꢅꢅꢏ ,ꢐꢇꢅꢂꢏꢅꢈ-ꢁ Fꢍꢌ ꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏ% ꢋꢓꢌꢐ ꢂꢄꢅ ,3ꢅꢐꢍꢔꢔꢅꢏꢈꢅꢈ
ꢛꢂꢎꢅ $ꢌꢂꢐꢊꢆꢐꢅꢄ ꢎꢍꢌ ꢊ ꢅ $ꢌꢅꢋꢂꢌꢂꢊꢆꢍꢏ ꢎꢍꢌ /ꢅꢇꢈꢆꢏꢖ ꢂꢏꢈ ;ꢓꢊꢊꢆꢏꢖ ꢍꢎ
;ꢍꢏꢊꢂꢆꢏꢅꢌꢄ ꢂꢏꢈ $ꢆꢋꢆꢏꢖ ) ꢂꢊ ꢘꢂꢑꢅ ꢘꢅꢇꢈ ꢘꢂ1ꢂꢌꢈꢍꢓꢄ
ꢛꢓꢗꢄꢊꢂꢏꢐꢅꢄ-% ꢙ/ꢛ Fꢀꢁ> ꢎꢌꢍꢔ ꢊ ꢅ ꢙꢔꢅꢌꢆꢐꢂꢏ /ꢅꢇꢈꢆꢏꢖ ꢛꢍꢐꢆꢅꢊꢒ
*ꢄꢅꢅ ꢂꢈꢈꢌꢅꢄꢄ ꢂꢗꢍꢑꢅ+ꢁ
#ꢁꢅꢁ Bꢅꢅꢋ ꢒꢍꢓꢌ ꢅꢂꢈ ꢂꢏꢈ ꢎꢂꢐꢅ ꢂꢉꢂꢒ ꢎꢌꢍꢔ ꢊ ꢅ ꢐꢒꢇꢆꢏꢈꢅꢌ ꢑꢂꢇꢑꢅ ꢍꢓꢊꢇꢅꢊ
ꢉ ꢅꢏ ꢍꢋꢅꢏꢆꢏꢖ ꢊ ꢅ ꢐꢒꢇꢆꢏꢈꢅꢌ ꢑꢂꢇꢑꢅꢁ
#ꢁꢎꢁ <ꢂꢇꢑꢅ ꢋꢌꢍꢊꢅꢐꢊꢆꢍꢏ ꢐꢂꢋꢄ ꢄ ꢍꢓꢇꢈ ꢂꢇꢉꢂꢒꢄ ꢗꢅ ꢆꢏ ꢋꢇꢂꢐꢅ ꢂꢏꢈ ꢂꢏꢈ
ꢊꢆꢖ ꢊ ꢅ'ꢐꢅꢋꢊ ꢉ ꢅꢏ ꢊ ꢅ ꢐꢒꢇꢆꢏꢈꢅꢌ ꢆꢄ ꢆꢏ ꢓꢄꢅ ꢍꢌ ꢐꢍꢏꢏꢅꢐꢊꢅꢈ ꢎꢍꢌ
ꢓꢄꢅꢁ
#ꢁꢖꢁ 3ꢅꢂꢈ ꢂꢏꢈ ꢎꢍꢇꢇꢍꢉ ꢊ ꢅ ꢆꢏꢄꢊꢌꢓꢐꢊꢆꢍꢏꢄ ꢍꢏ ꢐꢍꢔꢋꢌꢅꢄꢄꢅꢈ ꢖꢂꢄ
ꢐꢒꢇꢆꢏꢈꢅꢌꢄ% ꢂꢄꢄꢍꢐꢆꢂꢊꢅꢈ ꢅ7ꢓꢆꢋꢔꢅꢏꢊ% ꢂꢏꢈ ;2ꢙ ꢋꢓꢗꢇꢆꢐꢂꢊꢆꢍꢏ $ꢜꢇ%
,$ꢌꢅꢐꢂꢓꢊꢆꢍꢏꢄ ꢎꢍꢌ ꢛꢂꢎꢅ ꢘꢂꢏꢈꢇꢆꢏꢖ ꢍꢎ ;ꢍꢔꢋꢌꢅꢄꢄꢅꢈ 2ꢂꢄꢅꢄ ꢆꢏ
;ꢒꢇꢆꢏꢈꢅꢌꢄ%- ꢂꢑꢂꢆꢇꢂꢗꢇꢅ ꢎꢌꢍꢔ ꢊ ꢅ ;ꢍꢔꢋꢌꢅꢄꢄꢅꢈ 2ꢂꢄ ꢙꢄꢄꢍꢐꢆꢂꢊꢆꢍꢏ
>C(6 Dꢅꢎꢎꢅꢌꢄꢍꢏ .ꢂꢑꢆꢄ ꢘꢆꢖ ꢉꢂꢒ% ꢙꢌꢇꢆꢏꢖꢊꢍꢏ% <ꢙ CCC?Cꢁ
5ꢁꢅꢁ <ꢅꢏꢊ ꢍꢇꢇꢍꢉ ꢐꢂꢄꢊꢆꢏꢖꢄ ꢍꢌ ꢐꢍꢏꢊꢂꢆꢏꢅꢌꢄ ꢗꢅꢎꢍꢌꢅ ꢅꢂꢊꢆꢏꢖ% ꢐꢓꢊꢊꢆꢏꢖ ꢍꢌ
ꢉꢅꢇꢈꢆꢏꢖꢁ ) ꢅꢒ ꢔꢂꢒ ꢅ'ꢋꢇꢍꢈꢅꢁ
5ꢁꢎꢁ ꢛꢋꢂꢌꢕꢄ ꢂꢏꢈ ꢄꢋꢂꢊꢊꢅꢌ ꢂꢌꢅ ꢊ ꢌꢍꢉꢏ ꢎꢌꢍꢔ ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ ꢂꢌꢐꢁ /ꢅꢂꢌ ꢍꢆꢇ
ꢎꢌꢅꢅ ꢋꢌꢍꢊꢅꢐꢊꢆꢑꢅ ꢖꢂꢌꢔꢅꢏꢊꢄ ꢄꢓꢐ ꢂꢄ ꢇꢅꢂꢊ ꢅꢌ ꢖꢇꢍꢑꢅꢄ% ꢅꢂꢑꢒ ꢄ ꢆꢌꢊ%
ꢐꢓꢎꢎꢇꢅꢄꢄ ꢊꢌꢍꢓꢄꢅꢌꢄ% ꢆꢖ ꢄ ꢍꢅꢄ ꢂꢏꢈ ꢂ ꢐꢂꢋ ꢍꢑꢅꢌ ꢒꢍꢓꢌ ꢂꢆꢌꢁ /ꢅꢂꢌ
ꢅꢂꢌ ꢋꢇꢓꢖꢄ ꢉ ꢅꢏ ꢉꢅꢇꢈꢆꢏꢖ ꢍꢓꢊ ꢍꢎ ꢋꢍꢄꢆꢊꢆꢍꢏ ꢍꢌ ꢆꢏ ꢐꢍꢏꢎꢆꢏꢅꢈ ꢋꢇꢂꢐꢅꢄꢁ
ꢙꢇꢉꢂꢒꢄ ꢉꢅꢂꢌ ꢄꢂꢎꢅꢊꢒ ꢖꢇꢂꢄꢄꢅꢄ ꢉꢆꢊ ꢄꢆꢈꢅ ꢄ ꢆꢅꢇꢈꢄ ꢉ ꢅꢏ ꢆꢏ ꢂ
ꢉꢅꢇꢈꢆꢏꢖ ꢂꢌꢅꢂꢁ
2ꢐꢁ ꢋꢌꢋꢂꢍꢁꢎꢂꢀꢌꢌꢃ
"ꢗ$ꢙꢉꢙꢕ ꢙ+ꢈꢓ"ꢚꢙꢆꢖꢊ
"ꢁꢂꢁ )ꢓꢌꢏ ꢍꢎꢎ ꢆꢏꢋꢓꢊ ꢋꢍꢉꢅꢌ ꢓꢄꢆꢏꢖ ꢊ ꢅ ꢈꢆꢄꢐꢍꢏꢏꢅꢐꢊ
ꢄꢉꢆꢊꢐ ꢂꢊ ꢊ ꢅ ꢎꢓꢄꢅ ꢗꢍ' ꢗꢅꢎꢍꢌꢅ ꢉꢍꢌꢕꢆꢏꢖ ꢍꢏ
ꢊ ꢅ ꢅ7ꢓꢆꢋꢔꢅꢏꢊꢁ
5ꢁꢖꢁ ;ꢍꢏꢏꢅꢐꢊ ꢊ ꢅ ꢉꢍꢌꢕ ꢐꢂꢗꢇꢅ ꢊꢍ ꢊ ꢅ ꢉꢍꢌꢕ ꢂꢄ ꢐꢇꢍꢄꢅ ꢊꢍ ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ
ꢂꢌꢅꢂ ꢂꢄ ꢋꢌꢂꢐꢊꢆꢐꢂꢇꢁ /ꢍꢌꢕ ꢐꢂꢗꢇꢅꢄ ꢐꢍꢏꢏꢅꢐꢊꢅꢈ ꢊꢍ ꢊ ꢅ ꢗꢓꢆꢇꢈꢆꢏꢖ
ꢎꢌꢂꢔꢅꢉꢍꢌꢕ ꢍꢌ ꢍꢊ ꢅꢌ ꢇꢍꢐꢂꢊꢆꢍꢏꢄ ꢂꢉꢂꢒ ꢎꢌꢍꢔ ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ ꢂꢌꢅꢂ
ꢆꢏꢐꢌꢅꢂꢄꢅ ꢊ ꢅ ꢋꢍꢄꢄꢆꢗꢆꢇꢆꢊꢒ ꢍꢎ ꢊ ꢅ ꢉꢅꢇꢈꢆꢏꢖ ꢐꢓꢌꢌꢅꢏꢊ ꢋꢂꢄꢄꢆꢏꢖ
ꢊ ꢌꢍꢓꢖ ꢇꢆꢎꢊꢆꢏꢖ ꢐ ꢂꢆꢏꢄ% ꢐꢌꢂꢏꢅ ꢐꢂꢗꢇꢅꢄ ꢍꢌ ꢍꢊ ꢅꢌ ꢂꢇꢊꢅꢌꢏꢂꢊꢅ ꢐꢆꢌꢜ
ꢐꢓꢆꢊꢄꢁ ) ꢆꢄ ꢐꢂꢏ ꢐꢌꢅꢂꢊꢅ ꢎꢆꢌꢅ ꢂ1ꢂꢌꢈꢄ ꢍꢌ ꢍꢑꢅꢌ ꢅꢂꢊ ꢇꢆꢎꢊꢆꢏꢖ ꢐ ꢂꢆꢏꢄ
ꢍꢌ ꢐꢂꢗꢇꢅꢄ ꢓꢏꢊꢆꢇ ꢊ ꢅꢒ ꢎꢂꢆꢇꢁ
"ꢁꢗꢁ ꢏꢄꢊꢂꢇꢇ ꢅ7ꢓꢆꢋꢔꢅꢏꢊ ꢆꢏ ꢂꢐꢐꢍꢌꢈꢂꢏꢐꢅ ꢉꢆꢊ ꢊ ꢅ ꢃꢁꢛꢁ ꢚꢂꢊꢆꢍꢏꢂꢇ
9ꢇꢅꢐꢊꢌꢆꢐꢂꢇ ;ꢍꢈꢅ% ꢂꢇꢇ ꢇꢍꢐꢂꢇ ꢐꢍꢈꢅꢄ ꢂꢏꢈ ꢊ ꢅ ꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢅꢌ=ꢄ
ꢌꢅꢐꢍꢔꢔꢅꢏꢈꢂꢊꢆꢍꢏꢄꢁ
"ꢁꢐꢁ 2ꢌꢍꢓꢏꢈ ꢊ ꢅ ꢅ7ꢓꢆꢋꢔꢅꢏꢊ ꢆꢏ ꢂꢐꢐꢍꢌꢈꢂꢏꢐꢅ ꢉꢆꢊ ꢊ ꢅ ꢃꢁꢛꢁ ꢚꢂꢊꢆꢍꢏꢂꢇ
9ꢇꢅꢐꢊꢌꢆꢐꢂꢇ ;ꢍꢈꢅ ꢂꢏꢈ ꢊ ꢅ ꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢅꢌ=ꢄ ꢌꢅꢐꢍꢔꢔꢅꢏꢈꢂꢊꢆꢍꢏꢄꢁ
5ꢁ ꢁ ꢙꢇꢄꢍ ꢄꢅꢅ ꢆꢊꢅꢔ >ꢁꢐꢁ
5ꢁ ꢁ 3ꢅꢂꢈ ꢂꢏꢈ ꢎꢍꢇꢇꢍꢉ ꢚF$ꢙ 6>G , ꢛꢊꢂꢏꢈꢂꢌꢈ ꢎꢍꢌ Fꢆꢌꢅ $ꢌꢅꢑꢅꢏꢊꢆꢍꢏ
.ꢓꢌꢆꢏꢖ /ꢅꢇꢈꢆꢏꢖ% ;ꢓꢊꢊꢆꢏꢖ ꢂꢏꢈ 8ꢊ ꢅꢌ ꢘꢍꢊ /ꢍꢌꢕ-% ꢂꢑꢂꢆꢇꢂꢗꢇꢅ
ꢎꢌꢍꢔ ꢚF$ꢙ# > Gꢂꢊꢊꢅꢌꢒꢔꢂꢌꢐ $ꢂꢌꢕ%$8 ꢗꢍ' E>?>% Hꢓꢆꢏꢐꢒ% 0ꢂ
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Cobramatic® Safety - page iii
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Cobramatic® Safety - page iv
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Cobramatic® Safety - page v
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ꢎꢍꢌꢝꢄꢅꢇꢅꢐꢊꢆꢏꢖꢝꢂꢝ83ꢀꢌꢎꢍꢃ ꢋꢌꢍꢈꢓꢐꢊꢝꢗꢒꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢁꢝ/ꢅꢝꢉꢂꢏꢊꢝꢒꢍꢓ
ꢊꢍꢝꢊꢂꢕꢅꢝꢋꢌꢆꢈꢅꢝꢆꢏꢝꢍꢋꢅꢌꢂꢊꢆꢏꢖꢝꢊ ꢆꢄꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝ;ꢍꢔꢋꢂꢏꢒꢝꢋꢌꢍꢈꢓꢐꢊ
AAAꢝꢂꢄꢝꢔꢓꢐ ꢝꢋꢌꢆꢈꢅꢝꢂꢄꢝꢉꢅꢝ ꢂꢑꢅꢝꢆꢏꢝꢗꢌꢆꢏꢖꢆꢏꢖꢝꢊ ꢆꢄꢝꢋꢌꢍꢈꢓꢐꢊꢝꢊꢍꢝꢒꢍꢓI
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3ꢄꢍꢐ1ꢋꢁꢜꢀꢄꢄꢎꢄꢍꢀ
4
ꢂꢋꢜ7ꢐꢌꢎꢂꢃ
) ꢅꢝꢗꢓꢄꢆꢏꢅꢄꢄꢝꢍꢎꢝ) ꢅꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝ;ꢍꢔꢋꢂꢏꢒꢝꢆꢄꢝꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢆꢏꢖꢝꢂꢏꢈꢝꢄꢅꢇꢇꢆꢏꢖꢝ ꢆꢖ ꢝ7ꢓꢂꢇꢆꢊꢒꢝꢉꢅꢇꢈꢆꢏꢖꢝꢅ7ꢓꢆꢋꢔꢅꢏꢊ%ꢝꢐꢍꢏꢄꢓꢔꢂꢗꢇꢅꢄ%ꢝꢂꢏꢈꢝꢐꢓꢊꢊꢆꢏꢖꢝꢅ7ꢓꢆꢋꢜ
ꢔꢅꢏꢊꢁꢝ8ꢓꢌꢝꢐ ꢂꢇꢇꢅꢏꢖꢅꢝꢆꢄꢝꢊꢍꢝꢔꢅꢅꢊꢝꢊ ꢅꢝꢏꢅꢅꢈꢄꢝꢍꢎꢝꢍꢓꢌꢝꢐꢓꢄꢊꢍꢔꢅꢌꢄꢝꢂꢏꢈꢝꢊꢍꢝꢅ'ꢐꢅꢅꢈꢝꢊ ꢅꢆꢌꢝꢅ'ꢋꢅꢐꢊꢂꢊꢆꢍꢏꢄꢁꢝ8ꢏꢝꢍꢐꢐꢂꢄꢆꢍꢏ%ꢝꢋꢓꢌꢐ ꢂꢄꢅꢌꢄꢝꢔꢂꢒꢝꢂꢄꢕꢝ:ꢆꢏꢐꢍꢇꢏ
9ꢇꢅꢐꢊꢌꢆꢐꢝꢎꢍꢌꢝꢂꢈꢑꢆꢐꢅꢝꢍꢌꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢂꢗꢍꢓꢊꢝꢊ ꢅꢆꢌꢝꢓꢄꢅꢝꢍꢎꢝꢍꢓꢌꢝꢋꢌꢍꢈꢓꢐꢊꢄꢁꢝ/ꢅꢝꢌꢅꢄꢋꢍꢏꢈꢝꢊꢍꢝꢍꢓꢌꢝꢐꢓꢄꢊꢍꢔꢅꢌꢄꢝꢗꢂꢄꢅꢈꢝꢍꢏꢝꢊ ꢅꢝꢗꢅꢄꢊꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢆꢏꢝꢍꢓꢌꢝꢋꢍꢄꢄꢅꢄꢜ
ꢄꢆꢍꢏꢝꢂꢊꢝꢊ ꢂꢊꢝꢊꢆꢔꢅꢁꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝꢆꢄꢝꢏꢍꢊꢝꢆꢏꢝꢂꢝꢋꢍꢄꢆꢊꢆꢍꢏꢝꢊꢍꢝꢉꢂꢌꢌꢂꢏꢊꢝꢍꢌꢝꢖꢓꢂꢌꢂꢏꢊꢅꢅꢝꢄꢓꢐ ꢝꢂꢈꢑꢆꢐꢅ%ꢝꢂꢏꢈꢝꢂꢄꢄꢓꢔꢅꢄꢝꢏꢍꢝꢇꢆꢂꢗꢆꢇꢆꢊꢒ%ꢝꢉꢆꢊ ꢝꢌꢅꢄꢋꢅꢐꢊꢝꢊꢍꢝꢄꢓꢐ ꢝꢆꢏꢎꢍꢌꢜ
ꢔꢂꢊꢆꢍꢏꢝꢍꢌꢝꢂꢈꢑꢆꢐꢅꢁꢝ/ꢅꢝꢅ'ꢋꢌꢅꢄꢄꢇꢒꢝꢈꢆꢄꢐꢇꢂꢆꢔꢝꢂꢏꢒꢝꢉꢂꢌꢌꢂꢏꢊꢒꢝꢍꢎꢝꢂꢏꢒꢝꢕꢆꢏꢈ%ꢝꢆꢏꢐꢇꢓꢈꢆꢏꢖꢝꢂꢏꢒꢝꢉꢂꢌꢌꢂꢏꢊꢒꢝꢍꢎꢝꢎꢆꢊꢏꢅꢄꢄꢝꢎꢍꢌꢝꢂꢏꢒꢝꢐꢓꢄꢊꢍꢔꢅꢌ=ꢄꢝꢋꢂꢌꢊꢆꢐꢓꢇꢂꢌꢝꢋꢓꢌꢋꢍꢄꢅ%
ꢉꢆꢊ ꢝꢌꢅꢄꢋꢅꢐꢊꢝꢊꢍꢝꢄꢓꢐ ꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢍꢌꢝꢂꢈꢑꢆꢐꢅꢁꢝꢙꢄꢝꢂꢝꢔꢂꢊꢊꢅꢌꢝꢍꢎꢝꢋꢌꢂꢐꢊꢆꢐꢂꢇꢝꢐꢍꢏꢄꢆꢈꢅꢌꢂꢊꢆꢍꢏ%ꢝꢉꢅꢝꢂꢇꢄꢍꢝꢐꢂꢏꢏꢍꢊꢝꢂꢄꢄꢓꢔꢅꢝꢂꢏꢒꢝꢌꢅꢄꢋꢍꢏꢄꢆꢗꢆꢇꢆꢊꢒꢝꢎꢍꢌꢝꢓꢋꢈꢂꢊꢆꢏꢖꢝꢍꢌ
ꢐꢍꢌꢌꢅꢐꢊꢆꢏꢖꢝꢂꢏꢒꢝꢄꢓꢐ ꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢍꢌꢝꢂꢈꢑꢆꢐꢅꢝꢍꢏꢐꢅꢝꢆꢊꢝ ꢂꢄꢝꢗꢅꢅꢏꢝꢖꢆꢑꢅꢏ%ꢝꢏꢍꢌꢝꢈꢍꢅꢄꢝꢊ ꢅꢝꢋꢌꢍꢑꢆꢄꢆꢍꢏꢝꢍꢎꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢍꢌꢝꢂꢈꢑꢆꢐꢅꢝꢐꢌꢅꢂꢊꢅ%ꢝꢅ'ꢋꢂꢏꢈꢝꢍꢌꢝꢂꢇꢊꢅꢌꢝꢂꢏꢒ
ꢉꢂꢌꢌꢂꢏꢊꢒꢝꢉꢆꢊ ꢝꢌꢅꢄꢋꢅꢐꢊꢝꢊꢍꢝꢊ ꢅꢝꢄꢂꢇꢅꢝꢍꢎꢝꢍꢓꢌꢝꢋꢌꢍꢈꢓꢐꢊꢄꢁ
:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝꢆꢄꢝꢂꢝꢌꢅꢄꢋꢍꢏꢄꢆꢑꢅꢝꢔꢂꢏꢓꢎꢂꢐꢊꢓꢌꢅꢌ%ꢝꢗꢓꢊꢝꢊ ꢅꢝꢄꢅꢇꢅꢐꢊꢆꢍꢏꢝꢂꢏꢈꢝꢓꢄꢅꢝꢍꢎꢝꢄꢋꢅꢐꢆꢎꢆꢐꢝꢋꢌꢍꢈꢓꢐꢊꢄꢝꢄꢍꢇꢈꢝꢗꢒꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝꢆꢄꢝꢄꢍꢇꢅꢇꢒꢝꢉꢆꢊ ꢆꢏꢝꢊ ꢅꢝꢐꢍꢏꢊꢌꢍꢇ
ꢍꢎ%ꢝꢂꢏꢈꢝꢌꢅꢔꢂꢆꢏꢄꢝꢊ ꢅꢝꢄꢍꢇꢅꢝꢌꢅꢄꢋꢍꢏꢄꢆꢗꢆꢇꢆꢊꢒꢝꢍꢎꢝꢊ ꢅꢝꢐꢓꢄꢊꢍꢔꢅꢌꢁꢝ0ꢂꢏꢒꢝꢑꢂꢌꢆꢂꢗꢇꢅꢄꢝꢗꢅꢒꢍꢏꢈꢝꢊ ꢅꢝꢐꢍꢏꢊꢌꢍꢇꢝꢍꢎꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝꢂꢎꢎꢅꢐꢊꢝꢊ ꢅꢝꢌꢅꢄꢓꢇꢊꢄꢝꢍꢗꢊꢂꢆꢏꢅꢈꢝꢆꢏ
ꢂꢋꢋꢇꢒꢆꢏꢖꢝꢊ ꢅꢄꢅꢝꢊꢒꢋꢅꢄꢝꢍꢎꢝꢎꢂꢗꢌꢆꢐꢂꢊꢆꢍꢏꢝꢔꢅꢊ ꢍꢈꢄꢝꢂꢏꢈꢝꢄꢅꢌꢑꢆꢐꢅꢝꢌꢅ7ꢓꢆꢌꢅꢔꢅꢏꢊꢄꢁ
ꢛꢓꢗ4ꢅꢐꢊꢝꢊꢍꢝ; ꢂꢏꢖꢅꢝKꢝ) ꢆꢄꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢆꢄꢝꢂꢐꢐꢓꢌꢂꢊꢅꢝꢊꢍꢝꢊ ꢅꢝꢗꢅꢄꢊꢝꢍꢎꢝꢍꢓꢌꢝꢕꢏꢍꢉꢇꢅꢈꢖꢅꢝꢂꢊꢝꢊ ꢅꢝꢊꢆꢔꢅꢝꢍꢎꢝꢋꢌꢆꢏꢊꢆꢏꢖꢁꢝ$ꢇꢅꢂꢄꢅꢝꢌꢅꢎꢅꢌꢝꢊꢍꢝꢉ
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ꢉꢁꢇꢆꢏꢐꢍꢇꢏꢅꢇꢅꢐꢊꢌꢆꢐꢁꢐꢍꢔ
ꢎꢍꢌꢝꢂꢏꢒꢝꢓꢋꢈꢂꢊꢅꢈꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢁ
7ꢔꢙ ꢛꢙ ꢋ6 ꢚꢓꢆꢙ ꢂ ꢉꢖꢗꢆ ꢆꢕ ꢋ+ꢈꢓ"ꢚꢙꢆꢖ 2ꢗꢉ . ꢚ %ꢙ ꢎꢚꢚꢙꢕꢓ ꢖꢙꢔ!
/ ꢅꢏꢝꢊ ꢆꢄꢝꢅ7ꢓꢆꢋꢔꢅꢏꢊꢝꢆꢄꢝꢄ ꢆꢋꢋꢅꢈ%ꢝꢊꢆꢊꢇꢅꢝꢋꢂꢄꢄꢅꢄꢝꢊꢍꢝꢊ ꢅꢝꢋꢓꢌꢐ ꢂꢄꢅꢌꢝꢓꢋꢍꢏꢝꢌꢅꢐꢅꢆꢋꢊꢝꢗꢒꢝꢊ ꢅꢝꢐꢂꢌꢌꢆꢅꢌꢁꢝ;ꢍꢏꢄꢅ7ꢓꢅꢏꢊꢇꢒ%ꢝ;ꢇꢂꢆꢔꢄ
ꢎꢍꢌꢝꢔꢂꢊꢅꢌꢆꢂꢇꢝꢈꢂꢔꢂꢖꢅꢈꢝꢆꢏꢝꢄ ꢆꢋꢔꢅꢏꢊꢝꢔꢓꢄꢊꢝꢗꢅꢝꢔꢂꢈꢅꢝꢗꢒꢝꢊ ꢅꢝꢋꢓꢌꢐ ꢂꢄꢅꢌꢝꢂꢖꢂꢆꢏꢄꢊꢝꢊ ꢅꢝꢊꢌꢂꢏꢄꢋꢍꢌꢊꢂꢊꢆꢍꢏꢝꢐꢍꢔꢋꢂꢏꢒꢝꢂꢊꢝꢊ ꢅ
ꢊꢆꢔꢅꢝꢊ ꢅꢝꢄ ꢆꢋꢔꢅꢏꢊꢝꢆꢄꢝꢌꢅꢐꢅꢆꢑꢅꢈꢁ
$ꢇꢅꢂꢄꢅꢝꢌꢅꢐꢍꢌꢈꢝꢒꢍꢓꢌꢝꢅ7ꢓꢆꢋꢔꢅꢏꢊꢝꢆꢈꢅꢏꢊꢆꢎꢆꢐꢂꢊꢆꢍꢏꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢗꢅꢇꢍꢉꢝꢎꢍꢌꢝꢎꢓꢊꢓꢌꢅꢝꢌꢅꢎꢅꢌꢅꢏꢐꢅꢁꢝ) ꢆꢄꢝꢆꢏꢎꢍꢌꢔꢂꢊꢆꢍꢏꢝꢐꢂꢏꢝꢗꢅ
ꢎꢍꢓꢏꢈꢝꢍꢏꢝꢒꢍꢓꢌꢝꢔꢂꢐ ꢆꢏꢅꢝꢏꢂꢔꢅꢋꢇꢂꢊꢅꢁ
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ꢂꢑꢅꢝꢌꢅꢐꢍꢌꢈꢅꢈꢝꢂꢗꢍꢑꢅꢁꢝ) ꢅꢝꢐꢍꢈꢅꢝꢏꢓꢔꢗꢅꢌꢝꢆꢄꢝꢅꢄꢋꢅꢐꢆꢂꢇꢇꢒꢝꢆꢔꢋꢍꢌꢊꢂꢏꢊꢝꢉ ꢅꢏꢝꢆꢈꢅꢏꢊꢆꢎꢒꢆꢏꢖꢝꢊ ꢅꢝꢐꢍꢌꢌꢅꢐꢊꢝꢌꢅꢋꢇꢂꢐꢅꢔꢅꢏꢊꢝꢋꢂꢌꢊꢄꢁ
ꢐꢆꢝꢌꢓꢆꢙ 7ꢉꢗꢕꢈꢅꢖ ꢁꢙ%ꢓꢛꢖꢉ ꢖꢓꢗꢆ
ꢜꢝ3ꢅꢖꢆꢄꢊꢅꢌꢝꢒꢍꢓꢌꢝꢔꢂꢐ ꢆꢏꢅꢝꢉꢆꢊ ꢝ:ꢆꢏꢐꢍꢇꢏꢝ9ꢇꢅꢐꢊꢌꢆꢐꢝꢅꢆꢊ ꢅꢌꢝꢑꢆꢂꢝꢎꢂ'ꢝꢍꢌꢝꢍꢑꢅꢌꢝꢊ ꢅꢝ ꢏꢊꢅꢌꢏꢅꢊꢁ
AꢝFꢍꢌꢝꢎꢂ'ꢆꢏꢖ@ꢝꢝ;ꢍꢔꢋꢇꢅꢊꢅꢝꢊ ꢅꢝꢎꢍꢌꢔꢝꢍꢏꢝꢊ ꢅꢝꢗꢂꢐꢕꢝꢍꢎꢝꢊ ꢅꢝꢉꢂꢌꢌꢂꢏꢊꢒꢝꢄꢊꢂꢊꢅꢔꢅꢏꢊꢝꢆꢏꢐꢇꢓꢈꢅꢈꢝꢆꢏꢝꢊ ꢅꢝꢇꢆꢊꢅꢌꢂꢊꢓꢌꢅꢝꢋꢂꢐꢕꢅꢊ
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AꢝFꢍꢌꢝ8ꢏꢜ:ꢆꢏꢅꢝ3ꢅꢖꢆꢄꢊꢌꢂꢊꢆꢍꢏ@ꢝꢝ2ꢍꢝꢊꢍꢝꢍꢓꢌꢝ0ꢋ:ꢜꢄꢎꢍꢋꢜ ꢖꢜ$
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ꢂꢏꢈꢒꢝꢎꢍꢌꢝ7ꢓꢆꢐꢕꢝꢌꢅꢎꢅꢌꢅꢏꢐꢅꢁꢝ$ꢂꢒꢝꢋꢂꢌꢊꢆꢐꢓꢇꢂꢌꢝꢂꢊꢊꢅꢏꢊꢆꢍꢏꢝꢊꢍꢝꢊ ꢅꢝꢄꢂꢎꢅꢊꢒꢝꢆꢏꢄꢊꢌꢓꢐꢊꢆꢍꢏꢄꢝꢉꢅꢝ ꢂꢑꢅꢝꢋꢌꢍꢑꢆꢈꢅꢈꢝꢎꢍꢌꢝꢒꢍꢓꢌꢝꢋꢌꢍꢊꢅꢐꢊꢆꢍꢏꢁ
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,$ꢌꢍꢈꢓꢐꢊꢝ3ꢅꢖꢆꢄꢊꢌꢂꢊꢆꢍꢏ-ꢁꢝ$ꢇꢅꢂꢄꢅꢝꢐꢍꢔꢋꢇꢅꢊꢅꢝꢊ ꢅꢝꢎꢍꢌꢔꢝꢂꢏꢈꢝꢄꢓꢗꢔꢆꢊꢝꢒꢍꢓꢌꢝꢌꢅꢖꢆꢄꢊꢌꢂꢊꢆꢍꢏꢁ
0ꢀꢁ4ꢎ45
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ꢂꢀ3ꢍꢎꢐ4
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Section A
Installation
Technical Specifications
Wire Diameter Capacity ............................. .030” - .045” Solid and Hard wire
.......................................................................030” - 1/16” Aluminum
Wire Capacity ...................................................... 12” Standard
(Insulated or Non-Insulated)
Power Input ......................................................... 42 VAC 50/60 Hz,
............................................................................... 150 Watts Peak (3 amps)
Weight .................................................................. 42 pounds
Shipping Weight ................................................. 47 pounds
Support Equipment Required
C.V. or C.C. Power Source of Sufficient Capacity for Your Needs.
Regulated Gas Supply and Hoses.
Properly Sized Power Leads from Power Source to Wire Feeder and Ground.
Coolant Recommendations (for Water Cooled Guns)
Water Source and Hose Capable of Providing a Minimum of 1 qt/min. at 45
p.s.i. when using water cooled guns.
MK Recommended Coolant Solution:
1 part ethylene glycol
3 parts distilled water
1 teaspoon liquid glycerin
Check coolant periodically to remain within limits of the following:
A. Coolant Flow rate - 1 quart/minute at 45 p.s.i.
B. Resistivity - 10K ohms/centimeter
C. Ph Range - 5.5-8.5
D. Particle Size - .005”
Machine Grounding
The Cobramatic® and GMAW wire feeders are grounded to the power source
through the input cable. The power source grounding terminal must be prop-
erly connected to electrical ground per the power source operating manual.
Mounting Location
The cabinet should be placed in a location where it can be protected from
damage. Lead lengths and accessibility must also be considered when
installing the cabinet.
Input Power Connections
Your Wire Feeder comes factory ready with a harness to plug directly into all
14 pin Lincoln Power Sources equipped with 42 VAC auxiliary.
The 42 VAC is connected to the PC Board on terminal strip J5 #1 (neutral-
white) and #2 (hot-black) and Ground (green) to the Cabinet chassis. See
diagram in the appendix.
Wire Threading Procedure
Wire Spool Installation
Release latches, and open right side door of cabinet.
Remove spool retainer nut from spindle hub.
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Raise wire retainer bar to latched position.
Install wire spool onto spindle hub so that wire feeds from bottom of spool
towards slave motor. Make sure that the hole in the wire spool aligns with
pin on spindle hub. The white dot on the end of the spindle hub will aid in
this alignment.
Replace the spool retainer nut.
Lower the wire retainer bar onto the spool.
Wire Spool Drag Setting
NOTE:
Standard factory setting of the Spindle Tension Knob is set for All
Other Wires.
There are two visible position settings for this Knob, IN - All Other Wires
(Fig. 1) and, OUT - .030”/.035” Al Only (Fig. 2). The Spindle Tension Knob
must be set to match the Wire Size Selector Switch on the Cobramatic® front
panel.
To change this setting, it is easier done without the spool of wire on the spin-
dle. Remove the wire spool retainer nut and re-install it reversed back onto
the Spindle Tension Knob (Fig. 3). In the “Tool Mode”, the square shaped
end of the retainer fits onto the Knob. Grab the retainer nut and turn in the
COUNTER-CLOCKWISE direction until it stops. The Knob is now set to the
OUT position (.030”/.035” AL Only).
Wire Spool Retainer In "Tool Mode";
used to change spindle drag.
Figure 3
IN - All other wires
OUT - .030/.035 Aluminum ONLY
Figure 1
Figure 2
To reset the Knob back to the factory setting of All Other Wires, use the
retainer nut as described above, and turn in the CLOCKWISE direction until
it stops. The Spindle Knob is now set to the IN position. Turning the retainer
nut and Spindle Knob in this direction may require more effort, since turning
CLOCKWISE is working against a spring.
Load wire spool onto spindle according to the previous instructions.
Replace the spool retainer nut.
Lower the wire retainer bar onto the spool.
Wire Threading Procedure
Place wire size selector switch on front panel to the correct position for the
wire being used.
Loosen end of wire from spool and cut off any kinked or bent portions.
Unreel and straighten out first 6” to 8” of wire.
Raise wire type lever on the slave motor assembly of gun to center position.
Route wire into inlet guide, along drive roll groove, and into wire conduit.
Flip wire type lever to display name of wire type being used.
When using a Cobra® Gold or Prince® XL gun tighten the gun pressure
adjusting knob so the wire will be picked up and fed through the contact tip.
Proper tension is achieved when wire does not slip if a small amount of pres-
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sure is added to the wire as it exits the tip.
Wire Retainer Bar
The design of the patented Cobramatic® Wire Retainer Bar performs two very
important and very basic functions of the wire feeder: a) spool drag tension,
and b) wire maintenance on the spool.
The spool drag tension is set by lowering the wire retainer bar onto the sur-
face of the wire inside of the spool. The spring tension of the wire retainer
bar applies enough pressure on the spool so that when the gun trigger is
released, engaging the brake pall, the spool does not overrun kicking wire off
the spool.
Wire maintenance on the spool is performed by the applied pressure of the
wire retainer bar spread across the coiled wire on the spool. The replace-
able pad (P/N 437-0255) of the wire retainer bar is designed to hold the wire
on the spool, maintaining the smooth layering of the wire and keeping it from
jumping off, and possibly, electrically shorting to the cabinet chassis.
Welding Gun Connections
Control Cable
The 7-Pin “W” Clocked connector screws onto the mating receptacle on the
front panel of the wire feeder. This provides all electrical signals (motor volt-
age, potentiometer control & trigger) to and from the feeder to the gun.
Water Inlet (For Water Cooled Guns)
Front panel access to connect the water hose to the middle fitting on the
power block.
Wire Conduit Inlet
Front panel access to attach conduit to front of slave motor assembly.
Power Cable Inlet
Front panel access to attach power cable (air or water) to top of power block.
Guns with ring lugs, MUST connect to top bolt of power block.
Gas Inlet
Front panel access to attach gas hose to bottom fitting of power block.
Work Cable (Ground)
Connect a work lead of sufficient size and length between the proper output
stud on the power source and the work. Be sure the connection to the work
makes tight metal to metal electrical contact. Improper work lead connec-
tions can result in poor arc initiation and unsatisfactory weld results.
Consult welding power supply manufacturer for proper work lead sizing.
Section B
Operation
General
The AC slave motor in the feeder runs at a fast, constant speed, but has very
low torque. It is always trying to feed more wire than the gun motor wants,
and when the gun motor gets all the wire it wants, the slave motor automati-
cally slows, preventing a bird’s nest. Because of the low torque produced
by the slave motor, a combination drag and electric brake system is used to
prevent wire overrun rather than relying on spindle tension alone. The spool
drag tension is produced by the patented Wire Retainer Bar mechanism to
keep the wire slightly taut. The 24 VDC gun “pull” motor is controlled by a
solid state speed control in the cabinet and through a potentiometer located
in the gun.
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The normal operating sequence of the wire feeder can be viewed on the
board itself via sequence LED’s. When the system is triggered, the green
Trigger LED (L3) and the yellow Gas Solenoid LED (L1) illuminate simultane-
ously. The red Contactor/Wire Feed LED (L2) illuminates after the prepurge
time. The blue Arc On LED (LED) illuminates as the arc is established. When
the trigger is released the normal LED operating sequence is blue, green and
red (L4, L3, & L2) turn off simultaneously followed by the yellow (L1) after the
postpurge time has elasped (Figure 4).
Yellow LED
when solenoid
opens.
Red LED when
wire feeds/con-
tactor closes.
L2
Blue LED
when arc established
L4
Green LED
when triggered.
L3
L1
Figure 4 - L1, L2, L3 & L4
FOR REFERENCE, SEE MAIN P.C. BOARD CONNECTIONS PICTURE IN SECTION F
Recommended Processes and Equipment
The Cobramatic® is recommended for use in the GMAW and FCAW weld-
ing applications. It is recommended for use with constant voltage power
sources. The Cobramatic® is capable of feeding wires (diameter capacity)
ranging from .030” through .045” solid/cored and .030” through 1/16” alumi-
num.
Controls and Settings
On/Off Switch
Placing the switch in the “ON” position energizes the feeder circuitry and the
power indicator light.
Wire Size Selector Switch
The wire size selector switch changes the torque of the slave motor for the
wire you are using. When in the .030” - .035” aluminum only position, the
slave motor produces approximately 1 1/2 lbs inches and approximately
4 1/2 lbs inches when in the all other wires position.
NOTE:
Operating the cabinet with the switch in the wrong
position will cause wire feed difficulties.
PosaStart Switch & Run Speed Setting
The Posa Start Run-in Speed Control, located on the front panel, provides
wire speed adjustment for slow wire run-in. This setting tracks as a percent-
age of the welding wire speed setting. Once the arc has been established,
the wire feed speed automatically changes from the slow run-in speed to the
welding wire speed set on the gun potentiometer.
PosaStart operation and configuration is explained later in this section.
Trigger Normal/Trigger Latched
This switch configures the electronic Trigger Latching mechanism. In the
Trigger Normal mode, pull and hold the trigger to start welding functions
- release to stop welding functions. In the Trigger Latched mode, pull and
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release trigger to start welding functions - pull trigger again and release to
stop welding functions.
The Prepurge/Postpurge functions are pre-configured to provide a preset
amount of pre & postpurge gas time; 0.25 and 2.0 second respectively. The
default factory position of this jumper is horizontal (top right) across pins.
Changing the position of the JP3 jumper changes the configuration of the pre
& postpurge sequences. Refer to Figure 5 for the desired pre and postpurge
sequence. Once the desired sequence is selected, relocate on JP3 jumper
from its horizontal default pattern (top right) to its new vertical sequence posi-
turn.
Figure 5
Pre-Purge Settings & Adjustments (JP2)
The Pre-Purge Jumper/Pot Configuration at JP2 has 3 available settings:
0.25 sec. fixed, variable from 0-1 sec. or variable from 0-5 seconds.
By default, the twin two-pin jumpers, across rows 1 & 3, are configured for
0.25 sec. Just to the left of the jumpers is a ¾-turn potentiometer (pot) which
is used with both variable settings. For the 0-1 sec. range, move the jumpers
across rows 3 & 5. For the 0-5 second range, move the jumpers across rows
5 & 7 (Figure 6a).
Rows 3 & 5: 0-1 sec.
Figure 6a
Rows 1 & 3: 0.25 sec. fixed
Rows 5 & 7: 0-5 sec.
Timing adjustment for the variable settings are as follows: Move the jumpers
to either variable setting location. Turn potentiometer screw (Small flat or
cross-head) half way. Pull gun trigger and count time between red contactor
wire feed LED (L2) and yellow Gas Solenoid LED (L1). Adjust pot screw as
necessary.
Post-Purge Settings & Adjustments (JP1)
The Post-Purge Jumper/Pot Configuration at JP1 has 2 available settings: 2
sec. fixed and variable from 0-5 seconds.
By default, the two-pin jumper across the top-and-middle pins, is configured
for 2 sec. Just to the left of the jumper is a ¾-turn pot which is used with the
variable setting. For the 0-5 second range, move the jumper from the top-
and-middle to the middle-and-bottom pins (Figure 6b).
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Middle/Bottom: 0-5 sec.
Top/Middle: 2 sec fixed
Figure 6b
Timing adjustment for the variable settings are as follows: Move the jumpers
to variable setting location. Turn potentiometer screw (Small flat or cross-
head) half way. Upon release of gun trigger, count time between yellow Gas
Solenoid LED (L1) and green Trigger LED (L3). Adjust as necessary.
Posa Start Operating Procedure
CAUTION:
Do not operate this wire feeder on a power source having a high-fre-
quency (HF) starting circuit until the high frequency feature has been
turned off or disabled. Failure to disable the HF will result in damage
to the PosaStart circuitry of the main board.
General
The Posa Start Run-in Speed Control, located on the front panel, provides
adjustment for slow wire run-in. Once the arc has been established, the wire
feed speed is automatically changed from the slow run-in speed to the weld-
ing speed set on the gun potentiometer.
The Posa Start feature allows the Cobramatic® feeder and gun to be used
in conjunction with constant current DC welding power sources of open cir-
cuit voltage in excess of 55 volts - also, any constant voltage welding power
source capable of a minimum of 50 amps.
Once the PosaStart circuit has transferred from slow run-in to weld speed,
the blue LED (L4) illuminates (Figure 7).
Blue LED
when PosaStart engages.
L4
Figure 7
CV/CC Posa Start Operations
NOTE:
CV Posa Start does not need welding voltage sensing lead.
The default factory setting is CV mode. Attach Cobramatic® cabinet to CV
power source according to the installation instructions.
Turn the Cobramatic® cabinet to the “ON” position and the Posa Start to the
“OFF” position. Adjust power source to desired voltage for your weld condi-
tion. Depress gun trigger and adjust wire feed speed at gun to match voltage
setting.
Turn the Posa Start switch to the “ON” position. Depress gun trigger and,
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using Run-in Speed Control, adjust wire feed rate to approximately 50% of
welding wire speed set at gun.
Initiate an arc, and adjust wire feed speed at gun until correct condition is
achieved. At the moment when welding wire speed transition occurs, L4 will
illuminate.
POSA START WIRE SPEED NOTE:
Because the Posa Start Run-in Speed always remains a percentage
of the actual welding wire feed rate, the Posa Start run-in speed
will always slow down or speed up proportional to any
adjustment you now make at the gun. Therefore, if you slow down
the welding wire feed speed, you will have to increase
the Run-in Speed setting.
Remote Operation: Input/Ouput
The terminal strip TB1(reference Appendix pages) allows for external input
signals for remote operation of the feeder as well as output signals for volt-
age and wire speed measurements, for a wide variety of automatic and semi-
automatic applications. By making connections across specific points of
TB1, such functions as the trigger and motor speed control can be controlled
using an external source, such as a controller interface or a PLC (program-
mable logic controller).
Figure 8
Section C
Section D
Accessories
None available.
Maintenance
Routine Maintenance
Your Cobramatic® is designed to provide years of reliable service. Normal
wear and component failure may require occasional service.
The number of units in operation and the importance of minimal “down time”
will determine to what extent spare parts should be stocked on hand.
If repairs do become necessary, any part can easily be replaced by qualified
shop maintenance personnel.
Maintenance of the gun will normally consist of a general cleaning of the wire
guide system, including tubes, drive rolls, and conduits at regular intervals.
Remove spatter build-up from inside of nozzles with a hardwood stick.
The only parts on the Cobramatic® system that are subject to normal wear
are the conduit, contact tips, gas cups, front body liners, wire guides, drive
and idler rolls. A supply of these parts should be maintained on hand.
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Testing the Feeder
Testing the Input Power Circuits
The AC circuits are protected by pico-fuses F1 and F2 (see page 13 for
location). If these continually fail, especially when powering up the cabi-
net, remove the connectors for the components that draw on this power, J6
(Brake Solenoid), J7 (Slave Motor) and J5-3 & 4 (AC Contactor - if used)
from the P.C. Board. Replace fuses and retrigger system. If fuses does not
fail, isolate the problem by plugging in J4, J7, and J5-3,4 one at a time until
the fuses fail.
Testing the Speed Control
NOTE:
The gun should be tested prior to testing circuitry on the main board.
Gun amphenol must be connected to the Cobramatic® to perform the
following tests.
To test the motor voltage circuit and measure how much voltage is being
delivered to the gun motor, place a voltmeter across diode test points TP1 &
TP2 and pull gun trigger. A reading between 0 VDC & 28 VDC+/- should be
observed, as the gun potentiometer is varied (Figure 9).
Motor Demand
Test Point
TP3
Motor Voltage
Test Point
TP2
Motor Voltage
Test Point
TP1
Figure 9
Testing the Gun
Motor Check
Remove the amphenol connector from the cabinet.
Using the gun amphenol, check the resistance across pins “A” and “B”
(motor leads). The resistance across the motor should be between 5-10
ohms.
If an open circuit or short exists, check the motor leads and motor indepen-
dently.
Testing the Potentiometer - “W” Clocked
Using the gun amphenol, check the resistance across pin “D” (wiper) and
pin “C”. The resistance should vary from 0 - 5K ohms as you turn pot.
Check the resistance across pin “D” (wiper) and pin “G”. The resistance
should vary from 5K - 0 ohms as you turn pot.
Testing the Micro Switch
Using the gun amphenol, check for continuity across pins “E” and “F” when
the trigger is pressed.
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Section E
Troubleshooting
Troubleshooting
Symptom
Cause
Remedy
Check AC circuit. Replace fuse(s).
No wire feed at gun, feeder not oper-
ating, i.e., no slave motor or brake
solenoid.
F1 & F2 fuse(s) in feeder failed.
F3 (4 amp) fuse in feeder failed.
Check motor leads for shorts then
replace fuse.
Micro-switch defective/not being acti-
vated. Broken electrical cable.
Replace switch. Check switch for
operation. Check micro switch wires
for continuity.
Loose J2, J3, P.C. board connector.
Check J2, J3 connectors.
Brake solenoid inoperative.
Solenoid defective.
Loose connector at J6.
Bad potentiometer.
Replace solenoid.
Check J6 connector.
No wire feed at gun, feeder operating
properly.
Check potentiometer with meter.
Bad gun motor.
Check/Replace motor.
Broken electrical cable.
Check motor and potentiometer wires
for continuity.
Bad speed control/PCB.
Check/Replace P.C. board.
Check all power connections.
Wire feeds, but welding wire is not
energized.
Loose or no cable power supply con-
nections.
Contactor control cable loose or in
wrong position.
Check power supply owner’s manual
for location and type of contactor signal
required, i.e. closing contacts or AC.
Welding power source not working
correctly.
Check power supply for proper
operation.
Wire feeds erratically.
Dirty or worn conduit.
Blow out or replace conduit.
Incorrect pressure on drive rolls.
Idler roll stuck in gun.
Adjust pressure at gun (Gold or Prince)
Check for lock washer under idler roll,
or replace if damaged or worn.
Wrong size contact tip.
See contact tip table.
Check with meter.
Wire feeds one speed only.
Wire walks out of drive rolls.
Bad potentiometer.
Broken electrical cable in lead assy.
Check potentiometer wires for continu-
ity or shorts.
Bad speed control.
Check/Replace P.C. boards.
Idler roll upside-down.
Place groove in idler roll toward the
top.
Rear wire guide missing.
Replace wire guide.
Trigger inoperable or not operating
correctly.
Trigger mode configuration.
Check front panel Trigger Normal/
Latched toggle switch.
Purge not operating correctly.
Jumper incorrectly configured. Gas
solenoid malfunctioning.
Check jumper location per Jumper
Table in Appendix. Check cable con-
nections to gas solenoid Check valve
in gun.
No PosaStart Wire Speed Transition
Welding power cable and/or gun power Welding power cable to bottom bolt.
cable connected to wrong bolt on
power block.
Gun power cable to top bolt.
Welding current not being sensed.
Wires not connected at TB1
Check current sensor in power block.
Reseat all wire connections at TB1.
Remote Functions Not Working
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Section F
Appendices
Diagrams/Parts List
Main P.C. Board Connections...................................................13
Cabinet and Gun Connections .................................................14
001-4022 Cobramatic® Assembly.............................................15
003-2237 Cobramatic® Front Panel Assembly ......................... 17
003-2068 Cobramatic® Slave Motor Assembly......................... 18
003-2063 Cobramatic® Power Block Assembly........................ 19
003-2146 Cobramatic® Spindle Assembly................................ 20
003-2137 Gas Solenoid Assembly ...........................................21
843-0496 LE Cobramatic® Control Cable................................. 22
071-0402 LE Cobramatic® Block Diagram................................ 23
071-0400 Cobramatic® Main P.C. Board .................................. 24
071-0367 Cobramatic® Gun Connections................................. 26
Input/Output Configuration for TB1........................................... 27
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Main P.C. Board Connections
P2
P1
Post-Purge
Trim Pot
Pre-Purge
Trim Pot
L4
Lit: Weld Speed
(blue)
TP3
Motor
Demand
TB1
Remote Input/Output
JP3
JP1 & JP2
Adj. Gas Purge Jumper
Gas Purge Jumper
L3
Green (Trigger “on”)
J2
Gas Solenoid
TP2
Test Point
MTR VDC
TP1
Test Point
GROUND
L1
Gas “on” (yellow)
J11
Front Panel
L2
Red (contactor
signal “on”)
J1
Trigger
Normal/Latch
F2
Line Fuse
J4
Front Panel
J7
J10
Slave Motor
Transformer
F1
Line Fuse
J8
Current Sensor
J9
F3
Brake Solenoid
Motor Fuse
J5
J6
Terminal Strip
Terminal Strip
Control Cable
LE P/N L10708-1 MK P/N 843-0496
Input Power - 42 VAC Hot-Black
Input Power - 42 VAC Neutral-White
Chasis Ground (Green)
Closing Contacts Out
Closing Contacts Out
Weld Posa Start voltage sensing lead ground
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Cabinet and Gun Connections
Water Cooled
Input Connections
Gun Connections
Coolant
Supply
Power/
Coolant In
Coolant
Return
Shielding
Gas
Coolant
Return
Welding
Power
Gas
Power
Cable
Input
Air Cooled
Gun
Shielding
Gas
Gas
Welding
Power
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003-2237 Front Panel Assembly
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003-2068 Slave Motor Assembly
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003-2063 Power Block Assembly
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003-2146 Spindle Assembly
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003-2137 Gas Solenoid Assembly
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843-0496 LE Cobramatic® Control Cable
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071-0402 Cobramatic® Block Diagram
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071-0400 Cobramatic® Main PC Board
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071-0400
Cobramatic® Main PC Board
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071-0367 Cobramatic® Gun Connections
and Front Panel Schematic
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Input / Output Configuration for TB1
Monitor Wire Feed Speed
Use digital volt meter between: TB1 – 1(GND) and TB1 – 2(MSPD).
Measured value defined as: Reading x 100 = Wire Feed Speed.
Example: 3.54 VDC is equivalent to 354 IPM
MVSPODLT METER
GND
TB1
Remote/External Trigger
Install jumper between: TB1 – 1(GND) and TB1 – 3(TRIG) to trigger system.
TRIG
SW
GND
TB1
Arc Establish Relay Closure
External Contact Signal; Connect 24VDC relay coil between TB1 – 8 (24V)
and TB1 – 4 (ARC). When arc is established, the relay coil will close.
ARC ESTABLISHED
K?
ARC ESTABLISHED
24V
ARC
ARC ESTABLISHED RELAY
TB1
Cobramatic® Owner’s Manual - page 27
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Cobramatic® Owner’s Manual - page 28
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Torch Pot Output
Some power supplies can utilize a variable DC voltage signal from the gun
potentiometer adjustment as their external voltage control. Adjusting the
potentiometer at the gun will give 0 to 10VDC output between TB1 – 1 (GND)
and TB1 – 6 (POT).
POT
GND
TB1
A common “synergic” type of setup is to have the gun potentiometer signal
control the welding voltage of the welding power supply. As this external
signal adjusts the voltage up or down, its external 0-10VDC signal can come
back into TB-1, as shown below in External Motor Speed Control, and control
the wire feed speed.
DMD
0 TO 10VDC
GND
TB1
This is mainly dependant on the configuration and signal adaptation of the
welding power supply. Check with your welding equipment manufacturer to
see if your welding power source has this feature or can adapt to this type of
setup. Not all welding power sources can do this.
Cobramatic® Owner’s Manual - page 29
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Manual Gas Purge
Jumper from TB1-7 to TB1-1 to externally operate the gas solenoid in the cabinet
Cobramatic® Owner’s Manual - page 30
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Cobramatic® Owner’s Manual - page 31
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Copyright © 2002 Lincoln Global Inc.
Cobramatic® Owner’s Manual - page 32
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THIS PAGE INTENTIONALLY BLANK
Cobramatic® Owner’s Manual
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LIMITED WARRANTY
Effective October 1, 2006
This warranty supersedes all previous MK Products warranties and is
exclusive, with no other guarantees or warranties expressed or implied.
Classification of any item into the foregoing categories shall be at
the sole discretion of MK Products. Notification of any failure must
be made in writing within 30 days of such failure.
LIMITED WARRANTY - MK Products Inc., Irvine, California
warrants that all new and unused equipment furnished by MK
Products is free from defects in workmanship and material as of
the time and place of delivery by MK Products. No warranty is
made by MK Products with respect to trade accessories or other
items manufactured by others. Such trade accessories and other
items are sold subject to the warranties of their respective manu-
facturers, if any.
A copy of the invoice showing the date of sale must accompany
products returned for warranty repair or replacement.
AllequipmentreturnedtoMKProductsforservicemustbeproperly
packaged to guard against damage from shipping. MK Products
will not be responsible for any damages resulting from shipping.
MK Products’ warranty does not apply to components having
normal useful life of less than one (1) year, such as relay points,
wire conduit, tungsten, and welding gun parts that come in contact
with the welding wire, including gas cups, gas cup insulators, and
contact tips where failure does not result from defect in workman-
ship or material.
Normal surface transportation charges (one way) for products
returned for warranty repair or replacement will be borne by MK
Products, except for products sold to foreign markets.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY
IMPLIED WARRANTY, GUARANTY, OR REPRESENTATION AS TO
PERFORMANCE, AND ANY REMEDY FOR BREACH OF CONTRACT
WHICH, BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICA-
TION, OPERATION OF LAW, CUSTOM OF TRADE, OR COURSE OF
DEALING, INCLUDING ANY IMPLIED WARRANTY OF MERCHANT-
ABILITY OR OF FITNESS FOR PARTICULAR PURPOSE, WITH
RESPECTTOANYANDALLEQUIPMENTFURNISHEDBYMKPROD-
UCTS, IS EXCLUDED AND DISCLAIMED BY MK PRODUCTS.
MK Products shall, exclusively remedy the limited warranty or
any duties with respect to the quality of goods, based upon the
following options:
(1) repair
(2) replacement
(3) where authorized in writing by MK Products, the reasonable
cost of repair or replacement at our Irvine, California plant.
As a matter of general policy only, MK Products may honor an
originaluser’swarrantyclaimsonwarrantedequipmentintheevent
of failure resulting from a defect within the following periods from
the date of delivery of equipment to the original user:
EXCEPT AS EXPRESSLY PROVIDED BY MK PRODUCTS IN WRIT-
ING, MK’s PRODUCTS ARE INTENDED FOR ULTIMATE PURCHASE
BY COMMERCIAL/INDUSTRIAL USERS AND FOR OPERATION BY
PERSONS TRAINED AND EXPERIENCED IN THE USE AND MAIN-
TENANCE OF WELDING EQUIPMENT AND NOT FOR CONSUMERS
OR CONSUMER USE. MK PRODUCTS’ WARRANTIES DO NOT
EXTEND TO, AND NO RE-SELLER IS AUTHORIZED TO EXTEND
MK PRODUCTS’ WARRANTIES TO ANY CONSUMER.
1. Power Supplies and Wire Feed Cabinets...........3 years
2. Weldheads, Positioners, Prince XL and Prince XL Spool
Guns, Python, CobraMAX, Cobra SX, Cobra MX.............
.............................................................................1 year
3. Sidewinder® Spool Gun, Prince SG Spool Guns,
Modules .......................................................... 180 days
4. Repairs/Exchanges/Parts ............................... 90 days
USE OF OTHER THAN GENUINE MK PRODUCTS’
CONSUMABLES, PARTS, AND ACCESSORIES MAY INVALIDATE
YOUR PRODUCT WARRANTY.
16882 Armstrong Ave.
Irvine, CA 92606
Tel (949)863-1234
Fax (949)474-1428
October 1, 2006
Copyright © 2007 Lincoln Global Inc.
®
ꢀꢁꢂꢃꢄꢀꢂ
ꢅꢀꢅꢃꢆ ꢁꢃ
World’s Leader in Welding and Cutting Prodcuts
Sales and Service through Subsidiaries and Distributors Worldwide
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
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