Miller Electric D-74DX Welder User Manual


 
OM-1500-7 Page 31
8-3. Diagnostics For User Defined Options
2
803 071
1
1 Front Panel
2 Front Panel Board PC20
User Defined Shutdown Error
Messages (Additional hardware
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.
. Refer to Section 6-12 for cor-
rect setup procedures.
ERR
OPT1
Indicates a User Defined
Option Error
ERR
OPT2
SECTION 9 MAINTENANCE & TROUBLESHOOTING
9-1. Routine Maintenance
! Disconnect power
before maintaining.
. Maintain more often
during severe conditions.
3 Months
Replace
unreadable
labels.
Clean and
tighten
weld
terminals.
Repair or
replace
cracked
weld
cable.
Check
14-pin cord.
Check gas
hose and
fittings.
Check gun
cable.
Replace
cracked
parts.
6 Months
Blow out or vacuum
inside. During heavy
service, clean
monthly.
Or
Clean
drive rolls.