Troubleshooting Torch - Miller Electric 375 Owner's Manual

6-6. Troubleshooting Torch

Does arc go
on and
while cutting?
Does arc go out
while cutting?
Do sparks come
out of top of cut;
or cut is not
clean?
Is Trouble light
On; unit has no
cutting output?
Go to Section 6-5.
Torch travel speed too slow;
increase travel speed (see
Section 5-2). Clean
Yes
replace torch consumables
off
as necessary (see Section
6-4). Be sure work clamp is
securely
workpiece.
No
Be sure work clamp is
securely attached to work-
piece. Make sure tip is on or
Yes
near, 1/16 in (1.6 mm) to 1/8
in (3.2 mm) workpiece (see
Section 5-4). Clean or
replace torch consumables
as necessary (see Section
6-4).
No
Torch travel speed too fast;
reduce travel speed (see
Section 4-1). Clean or
replace torch consumables
Yes
as necessary (see Section
6-4). Be sure work clamp is
securely
workpiece. Unit not capable
of cutting metals thicker
than rating (see Section
4-1).
No
Check torch shield cup (see
Yes
Section 6-2); reset unit
Power switch. *Check torch
and connections inside unit.
No
or
Go to Section 6-5.
attached to
Go to Section 6-5.
attached to
Go to Section 6-5.
*Servicing procedure to be performed
only by authorized Service Station.
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