Diagnostics For User Defined Options; Section 9 − Maintenance & Troubleshooting; Routine Maintenance - Miller Electric D-74DX Owner's Manual

Wire feeder
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8-3. Diagnostics For User Defined Options

ERR
OPT1
Indicates a User Defined
Option Error
SECTION 9 − MAINTENANCE & TROUBLESHOOTING

9-1. Routine Maintenance

3 Months
Replace
unreadable
labels.
Replace
cracked
parts.
6 Months
Blow out or vacuum
inside. During heavy
service, clean
monthly.
ERR
OPT2
Clean and
tighten
weld
terminals.
Check
14-pin cord.
Or
1
2
User Defined Shutdown Error
Messages (Additional hardware
1
required for these to be functional)
If OPT1 and/or OPT2 are enabled
without additional hardware setup,
the following error messages will be
displayed on the front panel meters.
OPT1 and/or OPT2 must be dis-
abled.
.
2
!
Disconnect power
before maintaining.
Repair or
replace
cracked
weld
cable.
Check gas
hose and
fittings.
Clean
drive rolls.
Front Panel
Front Panel Board PC20
Refer to Section 6-12 for cor-
rect setup procedures.
803 071
.
Maintain more often
during severe conditions.
Check gun
cable.
OM-1500-7 Page 31

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