ESAB B Series Installation, Operation And Maintenance Manual page 91

SECTION 7
Visually inspect nozzle sealing o-ring and electrode o-ring
Visually inspect nozzle and retaining cup metal-to-metal seat
Reassemble electrode, swirl baffle, nozzle and retaining cup
Turn on coolant flow and check for leaks
Table 7-3. PT-24 Torch Leak Procedure
Front end of torch leaking
Remove: shield cup
insulator shield retainer
insulator ring
nozzle retaining cup
nozzle
swirl baffle
electrode
yes
Are o-rings
damaged?
no
Are seats
yes
damaged?
no
Still
yes
Leaking?
no
Replace
o-ring
Replace
parts
Replace nozzle
Still
yes
Replace Retaining cup
Leaking?
no
Let's cut!
87
TROUBLESHOOTING