Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 162)

HD3070 with Automatic Gas Console Instruction Manual 5-37
16
MAINTENANCE
Is high frequency
present at torch ?
Is T1 defective ?
Fig 6-11 (11)
Is
120 VAC applied
to high frequency
transformer T1 ?
Is PS/RHF control
cable defective ?
Fig 3-14
PS ERR=4
NO PILOT TIMEOUT ERROR
(Continued)
Is high frequency
present at torch ?
Check that high frequency
is present at torch. Caution,
use mirror to perform check.
Check power
supply DC output.
Replace
torch.
Replace
transformer
T1.
File, clean & regap
spark gaps.
Fig 6-11 (9)
Yes
Contact Hypertherm
technical service.
Contact Hypertherm
technical service.
Yes
Is high frequency
present at torch ?
Replace
torch
lead set.
Yes
Yes
Yes
No
No
Yes
Replace cable.
Replace relay PCB
1XPCB4.
Fig 6-2 (1)
Yes
Are spark gaps in
RHF unit firing ?
No
Replace
torch quick
disconnect.
No
No
No
No
Yes