TROUBLE SHOOTTING
9. Machine auto shut
down after switch it on.
1.Maybe Power cable or
circuit board short
circuit
2.Silicon bridge prob
ـ
lem
1.Fix or replace it0
2.Check and replace it
3.Replace silicon bridge
10. After pressure torch
trigger, there is HF
sound and spark, but
can not get arc start
11. HF works but arc
starting not good
enough
0
12. HF keep sparking
after press torch switch
1.Welding torch broken
or loosen or Earth
clamp and cable
connecting not good
enough to the earth and
metal piece;
2.The connector for
positive or negative
loosen
1.The Gap for tip to the
metal not in good range,
The tip and electrode
damaged or oxidate
2.HF weak because the
board leakage;
3.GAS/AIR connector
damaged, power
leakage between
connector and front
panel
1 .H F signal going to
torch switch board and
disturb it.
1.Adjust the tip to metal
in right gap ;
2.Check and fix
3.Check and fix
1.Check the GAS/AIR
torch connector, earth
female socket and torch
switch connector, if
there any HF spark
between them to front
metal
1.Check them and fix;
Problems
Analysis
Solution
19
PLASMA CUTTER
OPERATION MANUAL
