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Section
No.
Page
No.
SECTION
5OPERATOR
CONTROLS
5-1.
Power
Switch
And
Pilot
Light
19
5-2.
Thickness
Volts
Selector
19
5-3.
Fine
Tuning
Wire
Speed
Control
20
5-4.
Fan-On-Demand~
20
5-5.
Optional
Spot/Pulse
Panel
Controls
20
SECTION
6
SEQUENCE
OF
OPERATION
6-1.
Gas
Metal
Arc
Welding
(GMAW)-Continuous
And
Gas
Metal
Arc
Welding-Pulsed
Arc
(GMAW-P)
21
6-2.
Gas
Metal
Arc
Welding
(GMAW)-Spot
(Models
With
Optional
SPW-1
Panel
Only)
22
6-3.
Shutting
Down
23
SECTION
7
MAINTENANCE
&
TROUBLESHOOTING
7-1.
Routine
Maintenance
24
7-2.
Replacing
Drive
Roll
And
Wire
Inlet
Guide
25
7-3.
Drive
Housing Realignment
26
7-4.
Replacing
Hub
Assembly
26
7-5.
Inspecting
And
Replacing
Motor
Brushes
27
7-6.
Overload
Protection
27
7-7.
Thermal
Overload
Protection
28
7-8.
Printed
Circuit
Board
Replacement
28
7-9.
Troubleshooting
28
SECTION
8
ELECTRICAL
DIAGRAMS
Diagram
8-1.
Circuit
Diagram
For
MW
4150
Models
30
Diagram
8-2.
Circuit
Diagram
For
MW
4200
Models
31
Diagram
8-3.
Circuit
Diagram
For
SPW-1
Panel
31
Diagram
8-4.
Wiring
Diagram
For
SPW-1
Panel
32
Diagram
8-5.
Circuit
Diagram
For
SPW-1
Panel
Dual
Timer/Pulser
Board
PC5O
33
SECTION
9
WELDING
TECHNIQUES
&
TROUBLESHOOTING
9-1.
Gas
Metal
Arc
Welding
(GMAW)
Continuous
Seam
34
9-2.
Gas
Metal
Arc
Welding
(GMAW)-Pulsed
35
9-3.
Gas
Metal
Arc
Welding
(GMAW)-Spot
36
9-4.
Plug
Welds
37
9-5.
Skip
Welding
37
9-6.
Troubleshooting
The
Gas
Metal
Arc
Welding
Process
37
SECTION
10
AUTO
BODY
REPAIR
APPLICATION
10-1.
Pointers
For
Welding
Auto
Body
Sheet
Metal
40
10-2.
Procedure
For
Welding
Mild
Steels
40
10-3.
Procedures
For
Welding
Door
Panels
40
10-4.
How
To
Prevent
Glass
Breakage
And
Spatter
On
Windows
41
10-5.
Procedures
For
Welding
Fenders
And
Quarter
Panels
41
10-6.
Welding
Frames
And
High
Strength
(HSS)
Steels
41