TABLE OF CONTENTS

1. Safety Precautions – Read Before Using

1

1.1

Symbol Usage

1

1.2

Servicing Hazards

1

1.3

EMF Information

2

SECTION 2 – DEFINITIONS

3

2-1.

Warning Label Definitions

3

2-2. Rating Label For CE Products

4

2-3.

Symbols And Definitions

5

SECTION 3 – INSTALLATION

6

3-1.

Specifications

6

3-2. Volt-Ampere Curves

6

3-3. Duty Cycle And Overheating

7

3-4.

Selecting A Location

8

3-5.

Dimensions And Weights

8

3-6.

Tipping

9

3-7.

Weld Output Terminals And Selecting Cable Sizes

9

3-8.

Remote 14 Receptacle

10

3-9. 115 Volts AC Duplex Receptacle And Shielding Gas Connections

10

3-10.Electrical Service Guide

11

3-11.Placing Jumper Links And Connecting Input Power

12

SECTION 4 – OPERATION

13

4-1.

Controls

13

4-2.

Output Selector Switch

14

4-3.

Meters

14

4-4.

Crater Time Controls

15

4-5.

Spot Time Controls

15

4-6. AC Balance Control

16

4-7.

Amperage Adjustment Controls

17

4-8.

Output (Contactor) Control Switch

17

4-9.

Arc Controls

18

4-10.Postflow Time Control

18

4-11.High Frequency Controls

19

4-12.Preflow Time Control (Optional)

19

SECTION 5 – THEORY OF OPERATION

20

SECTION 6 – TROUBLESHOOTING

22

6-1.

Troubleshooting Table

22

6-2.

Troubleshooting Circuit Diagram For Welding Power Source

26

6-3. Waveforms For Section 6-2

28

6-4.

Control Board PC1 Testing Information (Use With Section 6-5)

30

6-5.

Control Board PC1 Test Point Values

31

6-6.

Remote Board PC2 Testing Information (Use With Section 6-7)

33

6-7.

Remote 14 Filter Board PC2 Test Point Values (Use With Section 6-2 And Section 6-6) . . . .

34

6-8.

Meter Calibration

35

6-9.

Input Voltage Labels And Connections

36

SECTION 7 – MAINTENANCE

37

7-1.

Routine Maintenance

37

7-2.

Circuit Breaker CB1

37

7-3. Fuses F1 And F2

38

7-4. Adjusting Spark Gaps

38

SECTION 8 – HIGH FREQUENCY (HF)

39

8-1. Welding Processes Using HF

39

8-2.

Sources Of HF Radiation From Incorrect Installation

39

8-3.

Correct Installation

40

SECTION 9 – ELECTRICAL DIAGRAMS

41

SECTION 10 – PARTS LIST

68

TM-353D

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Miller Electric TM-353E manual Table of Contents