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S-21E
Miller Electric S-21E Manuals
Manuals and User Guides for Miller Electric S-21E. We have
1
Miller Electric S-21E manual available for free PDF download: Technical Manual
Miller Electric S-21E Technical Manual (48 pages)
Wire Feed Equipment
Brand:
Miller Electric
| Category:
Welding System
| Size: 2.95 MB
Table of Contents
Table of Contents
3
Section no
4
Safety Precautions and Signal Words
5
General Information and Safety
5
Safety Alert Symbol and Signal Words
5
Safety Precautions
5
Section 2- Shipping and Storage
6
Preparation for Reshipment
6
Storage
6
Section 3- Specifications
7
Description
7
Section 4- Installation or Relocation
7
Location
7
Drive Roll Installation
7
Welding Gun Connections
9
Shielding Gas Installation
9
14-Pin Plug Connection
10
Welding Wire Installation
10
Welding Wire Threading
11
Adjust the Hub Tension
12
Welding Cable Connection
12
Feeding Welding Wire
12
Section 5-Operator Controls
13
Power Switch
13
Wire Speed Control
13
Section 6- Sequence of Operation
13
Gas Metal Arc (GMAW) and Flux Cored Arc (FCAW) Welding
13
Shutting down
14
Section 7- Theory of Operation
14
Theory of Operation
14
Diagram 7-1. Block Diagram for Wire Feeder
15
Diagram 7-2. Block Diagram for Spotlburnback Time Control Option
16
Section 8- Troubleshooting
18
Testing Instruments and Information
18
Circuit Board Handling Precautions
18
Troubleshooting
18
Diagram 8-1. Troubleshooting Circuit Diagram for Wire Feeder
20
Motor Board Pci Testing Information
21
Diagram 8-2. Troubleshooting Circuit Diagram for Motor Control Board Pci
22
Optional Spotlburnback Board PC2 Testing Information
24
Diagram 8-3. Troubleshooting Circuit Diagram for Optional Spot/Burnback Board PC2
26
Section 9- Component Identification and Location
28
Section 10- Maintenance
29
Routine Maintenance
29
10-2. Aligning Drive Roll and Wire Guide
30
Reinstallation of Hub Assembly
30
10-4. Brush Inspection and Replacement
30
10-5. Overload Protection
31
Electrical Diagrams
32
Section 11 Electrical Diagrams
32
Diagram 11-2. Wiring Diagram for S-21 E Effective with Serial no
33
Diagram 11-1. Circuit Diagram for S-21E Effective with Serial No. JJ507797 and Following
33
Effective with Serial No. JJ507797 Thru JK742028
35
Effective with Serial No. JK742029 and Following
36
JJ507797 and Following
33
Section 12- Parts List
37
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