section 5
5.4
troubleshooting Guide (con't.)
Problem
1. Reduced consumable
(electrode) life (O
and N
2
cutting)
Probable Cause
Excessive current.
2
Gas settings - inlet pressure.
Gas or water leak.
Inadequate cooling.
Single phasing of power
source.
Wrong gas baffle (O
).
2
Moisture in system.
Process factors:
Running off work.
Flipping or twisted
parts hitting torch.
Skeleton cutting.
Check power source ammeter (Refer to power source
manual).
Check that settings are in accordance with charts. Use
gas flow check kit.
Check for leaks.
Check water cooler for proper operation.
Refer to power source manual.
Install correct gas baffle (O
Purge system of moisture for a minimum of 30 seconds
after long idle time.
Extinguish arc with Arc Stop signal prior to running off
work or use a waste plate to run off on. This is most
important with O
2
Change program or fix table.
Cutting skeletons to facilitate their removal from the
table can adversely affect electrode life by:
A. Causing the torch to run off the work. (see above)
B.
Causing multi-pop edge starts.
306
tRoUBLesHootinG
Remedy
).
2
cutting.