5
HPR260 Auto Gas
Instruction Manual
5-1
Section 5
MAINTENANCE
In this section:
Introduction ..................................................................................................................................................................................................5-3
Routine maintenance .................................................................................................................................................................................5-3
System description ....................................................................................................................................................................................5-4
Control and signal cables ..............................................................................................................................................................5-4
Sequence of operation..............................................................................................................................................................................5-5
Gas system purge cycle ...........................................................................................................................................................................5-6
Gas system valve usage ...........................................................................................................................................................................5-6
Marking process...............................................................................................................................................................................5-8
PCB block diagram....................................................................................................................................................................................5-9
Error codes................................................................................................................................................................................................5-10
Error code troubleshooting – 1 of 10 ....................................................................................................................................5-11
Error code troubleshooting – 2 of 10 ....................................................................................................................................5-12
Error code troubleshooting – 3 of 10 ....................................................................................................................................5-13
Error code troubleshooting – 4 of 10 ....................................................................................................................................5-14
Error code troubleshooting – 5 of 10 ....................................................................................................................................5-15
Error code troubleshooting – 6 of 10 ....................................................................................................................................5-16
Error code troubleshooting – 7 of 10 ....................................................................................................................................5-17
Error code troubleshooting – 8 of 10 ....................................................................................................................................5-18
Error code troubleshooting – 9 of 10 ....................................................................................................................................5-19
Error code troubleshooting – 10 of 10 .................................................................................................................................5-20
Power supply states ................................................................................................................................................................................5-21
Plasma system operation with pump time-out ..................................................................................................................................5-22
CNC operation with pump time-out ....................................................................................................................................................5-23
Initial checks..............................................................................................................................................................................................5-24
Power measurement ...............................................................................................................................................................................5-25
Power supply coolant system servicing..............................................................................................................................................5-26
Draining the coolant system. ......................................................................................................................................................5-26
Coolant system filter................................................................................................................................................................................5-27
Filter replacement..........................................................................................................................................................................5-27
Coolant flow troubleshooting chart .....................................................................................................................................................5-28
Coolant flow tests....................................................................................................................................................................................5-29
Before testing.................................................................................................................................................................................5-29
Using the Hypertherm flow meter (128933) ..........................................................................................................................5-29
Manual pump operation ...............................................................................................................................................................5-30
Test 1 – return line......................................................................................................................................................................5-31
Test 2 – supply line at ignition console .................................................................................................................................5-31
Test 3 – change the torch.........................................................................................................................................................5-32
Test 4 – supply line to the torch receptacle .........................................................................................................................5-32
Test 5 – return line from the torch receptacle......................................................................................................................5-32
