Lincoln Electric CV-655 - User Manual

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CV-655

OPERATOR’S MANUAL

IM570

May, 2005

Safety Depends on You

Lincoln arc welding and cutting

equipment is designed and built

with safety in mind. However, your

overall safety can be increased by

proper installation ... and thought-

ful operation 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.

For use with machine Code Number 10120 thru 10129.

• 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

• World's Leader in Welding and Cutting Products •

IP23

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Other manuals for Lincoln Electric CV-655

Technical Specifications4 pages

Questions and Answers

W
williamsgeorgeJul 29, 2025
What to do if Lincoln Electric CV-655 has no output when trying to weld?
- S
  stephaniejacksonJul 29, 2025
  If your Lincoln Electric Welding System operates, but there's no output when welding, several factors could be at play. First, ensure that electrode or work cables are properly connected and not damaged. If the thermal protection light is illuminated, the machine has overheated. Check that the fan is running correctly and address the cause of overheating. Also, check the trigger circuit. To do this, put the Output Terminals Switch to the ON position, or place a jumper wire across #2 and #4 on the terminal strip. LED 6 on the control PC board should go ON.
W
William GonzalesAug 14, 2025
Why Lincoln Electric CV-655 input contactor does not operate?
- C
  Courtney EvansAug 14, 2025
  Several factors can prevent the input contactor from operating in your Lincoln Electric Welding System. Ensure that the correct three-phase input power is supplied to the CV655 machine. Also, the input contactor, the power switch (SW1), or the pilot transformer might be faulty.

Summary

Safety Precautions

ELECTRIC AND MAGNETIC FIELDS

ELECTRIC SHOCK HAZARDS

Critical safety warnings and precautions related to electric shock hazards.

ARC RAYS AND FUMES

Safety measures to protect against arc rays and hazards from fumes.

FIRE AND EXPLOSION RISKS

Precautions to prevent fires and explosions caused by welding sparks.

COMPRESSED GAS CYLINDER SAFETY

Safety guidelines for handling compressed gas cylinders.

ELECTRICAL EQUIPMENT SAFETY

Installation Guide

TECHNICAL SPECIFICATIONS

INPUT WIRE AND FUSE SIZES

INSTALLATION SAFETY PRECAUTIONS

Crucial safety precautions to be followed before installation.

ELECTRICAL INPUT CONNECTIONS

Procedures and checks for making electrical input connections.

INPUT SUPPLY AND GROUNDING

Instructions for connecting the input supply and grounding the machine.

RECONNECT PROCEDURE

OUTPUT CONNECTIONS

Instructions for connecting electrode and work cables to output terminals.

AUXILIARY POWER AND CONTROL CONNECTIONS

Operation Procedures

OPERATIONAL SAFETY PRECAUTIONS

Safety precautions to be followed before operating the machine.

DESIGN FEATURES AND ADVANTAGES

CONTROL PANEL FUNCTIONS

Explanation of all operator controls and adjustments on the CV-655.

THERMAL FAN AND OVERLOAD PROTECTION

Explanation of thermal fan control and overload protection mechanisms.

Maintenance

MAINTENANCE SAFETY PRECAUTIONS

Essential safety precautions before performing maintenance.

GENERAL MAINTENANCE TASKS

Troubleshooting

HOW TO USE THE TROUBLESHOOTING GUIDE

INPUT CONTACTOR ISSUES

NO OUTPUT WHEN WELDING

Troubleshooting steps for no output despite the input contactor operating.

OUTPUT CONTROL PROBLEMS

ARC STRIKING AND WELDING ARC ISSUES

MACHINE OPERATION AND SHUTDOWN PROBLEMS

WIRE FEEDER AND STARTING PROBLEMS

METER AND RECEPTACLE ISSUES

PC BOARD DIAGNOSTICS

Guide for troubleshooting various printed circuit boards.

Lincoln Electric CV-655 Specifications

General

Phase	3
Open Circuit Voltage	80V
Input Voltage	208/230/460 V
Input Current at Rated Output	85 A at 208 V, 78 A at 230 V, 39 A at 460 V
Processes	MIG, Flux-Cored
Input Current	85 A at 208 V, 78 A at 230 V, 39 A at 460 V
Duty Cycle	60%