INDEX - Continued

INDEX

Figure 1-4. Practical wiring diagram

Gas Welding Machine, 300 Amp, 10 To 400 Amp, Ac, Str Polarity, 10 To 300 Amp Dc, Reverse Polarity
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98

5-3431-203-15

Paragraph

In extreme cold

In extreme heat

In salt water areas

Under rainy or humid conditions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - --

2-7

Organizational maintenance repair parts -----------------------------------------------------------------------------------------

3-3

3-1

Panel door lock -------------------------------------------------------------------------------------------------------------

3-28

3-7

Pilot lamps ---------------------------------------------------------------------------------------------------------------------

3-10

3-5

Pilot lights -----------------------------------------------------------------------------------------------------------------------

3-30

3-10

Polarity switch --------------------------------------------------------------------------------------------------------------

4-19

4-5

3-31

Power switch -----------------------------------------------------------------------------------------------------------------

3-10

Preventive maintenance services:

Daily

General

Quarterly ---------------------------------------------------------------------------------------------------------------------

3-2

4-18

4-4

Range switch -------------------------------------------------------------------------------------------------------------------

4-30

4-15

Reactor

coil

1-2,4-2

Record and report forms ---------------------------------------------------------------------------------------------------

1-1, 4-1

4-23

4-6

Rectifier

assembly

2-7

2-3

Reinstallation after movement

3-40

Remote amperage switch ----------------------------------------------------------------------------------------------------

3-13

3-39

3-13

Remote contactor switch

3-38

3-12

Remote receptacle ------------------------------------------------------------------------------------------------------

Resistors

Scope

Spark

gap

adjustor

4-2

4-7

Specially designed tools and equipment

3-1, 4-5

3-1,4-2

Special tools and equipment -------------------------------------------------------- - - - - - - - - - - - - - - - - - - - - - - --

2-1 1

Starting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

2-12

2-4

Stopping - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - -

4-28

4-15

Switching panel- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ----------------------------------------------------------------

1-4, 4-4

1-4,4-1

Tabulated data -----------------------------------------------------------------------------------------------------------------

4-31

4-16

Tesla coil -----------------------------------------------------------------------------------------------------------------------

3-42

3-13

Thermostatic switch -----------------------------------------------------------------------------------------------------------

4-17

4-3

Timer receptacles ------------------------------------------------------------------------------------------------------------

4-27

4-15

Timer relay --------------------------------------------------------------------------------------------------------------------

3-34

3-10

Timers ----------------------------------------------------------------------------------------------------------------------------

Troubleshooting:

3-20, 4-15

3-6, 4-3

Contactor breaks circuit

3-13

3-5

Cooling fan does not operate

3-5

3-14

Fan assembly noisy -------------------------------------------------------------------------------------------------------

Gas insufficient

General

Pilot light inoperative ------------------------------------------------------------------------------------------------

4-10

4-3

Polarity cannot be selected -------------------------------------------------------------------------------------------------

4-11

4-3

Range cannot be selected

3-19

3-6

Remote control does not function properly -------------------------------------------------------------------------------

3-16

3-6

Water

insufficient

3-12, 4-13

3-5 , 4-3

Welding machine fails to start ----------------------------------------------------------------------------------------

4-12

4-3

Welding machine has internal arcing

3-6, 4-3

3-18, 4-14

Welding machine operates erratically

4-3

4-9

Welding machine smokes excessively

2-1

Unloading the equipment ---------------------------------------------------------------------------------------------------

2-1

2-2

Unpacking the equipment ------------------------------------------------------------------------------------------------

Voltage

change

bars

Water

valve

Welding machine operation ---------------------------------------------------------------------------------------

3-7

3-26

Welding machine top and housing ----------------------------------------------------------------------------------------

4-36, 4-37

4-20, 4-21

Wiring

I-2

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