Miller Electric S-21E - Manual (Page 3)

OM-1571B — 3/91
TABLE OF CONTENTS
Section No. Page No.
SECTION 1
-
SAFETY PRECAUTIONS AND SIGNAL WORDS
1-1. General Information And Safety 1
1-2. Safety Alert Symbol And Signal Words 1
1-3. Safety Precautions 1
SECTION 2- SHIPPING AND STORAGE
2-1. Preparation For Reshipment 2
2-2. Storage 2
SECTION 3— SPECIFICATIONS
3-1. Description 3
SECTION 4- INSTALLATION OR RELOCATION
4-1. Location 3
4-2. Drive Roll Installation 3
4-3. Welding Gun Connections 5
4-4. Shielding Gas Installation 5
4-5. 14-Pin Plug Connection 6
4-6. Welding Wire Installation 6
4-7. Welding Wire Threading 7
4-8. Adjust The Hub Tension 8
4-9. Welding Cable Connection 8
4-10. Feeding Welding Wire 8
SECTION 5-OPERATOR CONTROLS
5-1. Power Switch 9
5-2. Wire Speed Control 9
SECTION 6— SEQUENCE OF OPERATION
6-1. Gas Metal Arc (GMAW) And Flux Cored Arc (FCAW) Welding 9
6-2. Shutting Down 10
SECTION 7- THEORY OF OPERATION
7-1. Theory Of Operation 10
Diagram 7-1. Block Diagram For Wire Feeder 11
Diagram 7-2. Block Diagram For SpotlBurnback Time Control Option 12