Miller Electric DS-2 - Manual (Page 18)

OM-197 509 Page 14
SECTION 5 – MAINTENANCE & TROUBLESHOOTING
5-1. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
Unreadable
Labels
Clean And
Tighten
Weld
Terminals
Repair Or
Replace
Cracked
Weld Cable
10-Pin Cord Gas Hose Gun Cable
Replace
Cracked
Parts
6 Months
Blow Out Or Vacuum
Inside,
During Heavy Service,
Clean Monthly
OR
Clean
Drive
Rolls
5-2. Troubleshooting
Trouble Remedy
No weld output; unit completely
inoperative. Place line disconnect switch in On position (see welding power source owner’s manual).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see welding power source
owner’s manual).
Check for proper input power connections (see welding power source owner’s manual).
Check for proper jumper link position (see welding power source owner’s manual).
No weld output; Power switch pilot
light on. Check, repair, or replace feeder (see welding power source owner’s manual).
Unit overheated. Allow unit to cool with fan On (see welding power source owner’s manual).
Have Factory Authorized Service Agent check control board PC1 and/or motor drive board PC2.
Unit provides only maximum or
minimum weld output. Have Factory Authorized Service Agent check control board PC1, motor drive board PC2 and Hall
Device HD1.
Erratic or improper weld output. Use proper size and type of weld cable (see welding power source owner’s manual).
Clean and tighten all weld connections.
Check wire feeder installation (see Section 3-3
Use proper tap on stabilizer (see welding power source owner’s manual).
Have Factory Authorized Service Agent check control board PC1, motor drive board PC2 and/or
SCR in main rectifier.
No 115 volts ac output at duplex re-
ceptacle. Reset circuit breaker CB1 (see welding power source owner’s manual).