Miller XMT 300 CC/TIG Руководство пользователя - Страница 25
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Remedy
Section
Check
position
of
Output
(Contactor)
switch.
-~
Figure
4-7
Thermostat TP1 open
(overheating).
Allow fan
to run;
thermostat
-~
5-3A
closes when unit has cooled.
J
Check
position
of
Amperage
Control switch.
]_.
-~
Figure
4-8
Have
Factory
Authorized Service Station/Service Distributor
i.
-~
check control board PCi.
Check
incoming
power for
correct
voltage. Replace
line fuse if
-~
3-7
open
or
reset circuit breaker.
j
_____________
Check for proper
input
and
output
connections.
-~
3-3,
3-4,
3-7
-~
3-3,3-4
-~
3-3
-~
3-3, 3-4,
3-7
-~
8-1,8-2
-~
3-5
5-3D
Have
Factory
Authorized Service Station/Service Distributor
~
-~
check thermostats TP2 and/or TP3 and fan
motor.
I
____________
Tighten
all
welding
cable connections.
Check for proper size and
type
of cable.
Check for proper
input
and
output
connections.
Replace
electrode.
Connect
remote control to
Remote 14
receptacle
RC2.
Check fuse F2
and
replace
if necessary.
Trouble
No weld
output;
fan motor FM
running
I
-~
and
pilot
light
on.
I
Low weld
output
with
no
control.
Limited
output
and
low
open-circuit
~
-~
voltage.
I
~fatic
or
improper
weld
output.
Fan
motor FM does not
run.
Remote
device
completely inoperative.
-~
I---1
Wandering
arc;
poor control ot
arc
di-
i.
-~
rection.
I
Reduce flow
rate.
Select proper size
tungsten.
Properly
prepare
tungsten.
Tungsten
electrode
oxidizing
and
not
~.
-~
remaining bright
after conclusion of
weld.
Shield weld
zone
from drafts.
Increase
postflow
time.
Check
and
tighten
all gas
fittings.
Water
in torch.
Refer
to torch
Owners
Manual for
part(s) requiring
replacement,
and
repair
torch
as
necessary.
--~
--~
Lack
of
high frequency;
difficulty
in
1-..
establishing
an arc.
No
high frequency.
Be
sure
torch cable is not
near
any
grounded
metal.
Check
work and torch cable for
damaged
insulation
or
bad
con
nections,
and
repair
as
necessary.
Check
position
of Process Selector switch.
Have
Factory
Authorized Service Station/Service Distributor
check
high frequency
board PC2.
-~
Figure4-4
--~
--
OM-2204
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