Miller Electric S-21E Welder User Manual


 
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