Lincoln Electric 8911 User Manual

SERVICE MANUAL
SVM108-B | Issue D ate11, Jul
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
8213; 8222; 8223; 8224; 8225; 8249; 8250; 8251; 8252; 8253; 8262; 8268; 8273; 8274; 8288; 8289; 8295; 8298; 8301;
8304; 8315; 8318; 8324; 8353; 8380; 8549; 8555; 8584; 8692; 8693; 8694; 8695; 8702; 8722; 8728; 8738; 8764; 8782;
8789; 8825; 8902; 8904; 8906; 8907; 8911; 8934; 8954; 8988; 9080; 9093; 9130; 9158; 9170; 9171; 9353; 9354; 9355;
9356; 9357; 9358; 9359; 9360; 9361; 9362; 9363; 9364; 9384; 9385; 9463; 9464; 9465; 9470; 9483; 9607; 9620; 9621;
9716; 9717; 9773; 9774; 9775; 9776; 9777; 9778; 9779; 9780; 9781; 9782; 9793; 9832; 9910; 10159; 10282; 10283;
10334; 10335; 10407; 10408
IDEALARC
®
DC-600
1
2
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9
10
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NOTE: This manual will cover most of the troubleshooting and repair
procedures for the code numbers listed. Some variances may exist when
troubleshooting/repairing later code numbers.

Lincoln Electric 8911 Specifications

General

Brand	Lincoln Electric
Model	8911
Category	Welding System
Language	English

Summary

Safety

General Safety Precautions

Covers electric shock, fumes, gases, sparks, arc rays, and general warnings.

Installation

Technical Specifications

Electrical Input Connections

Instructions for connecting the machine's input power supply and grounding.

Reconnect Procedure

Steps to change the machine's voltage configuration via the reconnect panel.

Output Connections

Operation

Controls and Settings

Identifies and explains the function of all operator controls on the front panel.

Operating Steps

Step-by-step guide for the local control mode of machine operation.

Maintenance

Safety Precautions

Emphasizes safety measures before performing maintenance tasks.

Routine and Periodic Maintenance

Troubleshooting and Repair

How to Use Troubleshooting Guide

Provides a three-step procedure for locating and repairing machine malfunctions.

Output Problems

Lists common output issues, possible causes, and recommended actions for repair.

Static SCR Test

Active SCR Test

SCR / SCR Output Bridge Removal and Replacement Procedure

Electrical Diagrams

Wiring Diagram (Codes 9773, 9775, ... L8750)

Wiring diagram for a specific range of machine code numbers.

Wiring Diagram (Codes 9774, 9777, 10419) (L8751)

Wiring diagram for another range of machine code numbers.

Wiring Diagram (Code 9793) (L8752)

Control Board Schematic (G2312)

Firing Board Schematic (L8337)