TABLE OF CONTENTS
1
vi HD4070 Instruction Manual
Torch Connections................................................................................................................................................3B-19
Connecting the Torch to Torch Leads..........................................................................................................3B-19
Torch Mounting and Alignment ....................................................................................................................3B-20
Install the Torch and Lead Assembly....................................................................................................................3B-21
Torch and Lead Assembly............................................................................................................................3B-21
Fill the Power Supply with Coolant.......................................................................................................................3B-22
Section 4 Operation.............................................................................................................................................4-1
Power Supply Controls and Indicators......................................................................................................................4-2
General ............................................................................................................................................................4-2
Power Switch ...................................................................................................................................................4-2
Power Indicators ..............................................................................................................................................4-2
Power Supply Display......................................................................................................................................4-3
System Setup screens navigation ............................................................................................................................4-4
System Operation screens navigation......................................................................................................................4-6
Daily Start-up............................................................................................................................................................4-7
Check Torch.....................................................................................................................................................4-7
Turn Power Supply ON....................................................................................................................................4-8
System Setup Screens.....................................................................................................................................4-8
System Operation Screens ............................................................................................................................4-11
Consumables Selection..........................................................................................................................................4-14
Install Consumables ...............................................................................................................................................4-15
Cut Charts...............................................................................................................................................................4-16
Changing Consumable Parts..................................................................................................................................4-29
Remove Consumables...................................................................................................................................4-29
Inspect Consumables.....................................................................................................................................4-30
Inspect Torch..................................................................................................................................................4-31
Inspect Electrode Pit Depth............................................................................................................................4-32
Replace Torch Water Tube .....................................................................................................................................4-33
Common Cutting Faults..........................................................................................................................................4-34
Cutting Techniques.................................................................................................................................................4-35
How to Get Better Cut Quality........................................................................................................................4-35
How to Get Longer Consumable Life.............................................................................................................4-37
How to Get Better Pierces..............................................................................................................................4-38
How to Increase Cutting Speed .....................................................................................................................4-38
Technical Questions................................................................................................................................................4-38
Section 5 Maintenance........................................................................................................................................5-1
Introduction...............................................................................................................................................................5-2
Routine Maintenance................................................................................................................................................5-2
HD4070 System Description.....................................................................................................................................5-3
Control and Signal Cables ...............................................................................................................................5-3
Power Supply Coolant System Servicing .................................................................................................................5-4
Torch Coolant Draining.............................................................................................................................................5-6
Power Supply Coolant Draining................................................................................................................................5-6
Coolant System Filter and Strainer...........................................................................................................................5-7
Coolant Flow Test Procedure....................................................................................................................................5-9
HD4070 Process Sequence ...................................................................................................................................5-10
Initial Checks...........................................................................................................................................................5-12
Power Measurement...............................................................................................................................................5-13
Service Display Screens.........................................................................................................................................5-14
Error Codes ............................................................................................................................................................5-15
Error Code Trouble Shooting (1 of 4).............................................................................................................5-16
Error Code Trouble Shooting (2 of 4).............................................................................................................5-17