Tweco A 2000 Ultra-Feed - Manual (Page 32)

ULTRAFEED A 2000
5-2 May 1, 2006
5.06 Troubleshooting Guide
NOTE
Refer to the Connection Diagram and the Schematic Diagram in the Appendix chapter of this manual for
graphical assistance in disassembling and troubleshooting the wire feeder.
WARNING
ELECTRIC SHOCK can kill.
Follow all safety precautions.
Do not touch live electrical parts.
Turn OFF input power before servicing the machine unless otherwise noted.
Only qualified technicians are to service the machine.
WARNINGS
PC boards and their components are static sensitive devices.
Use static proof bags.
Use grounded wrist strap.
Only qualified personnel should test or handle these devices.
NOTES
Refer to the Appendix 3 Connection and Schematic Diagrams in the Appendix Section of this manual for
graphical assistance in disassembling and troubleshooting the wire feeder.
The acceptable tolerance (in most cases) on resistance and voltage measurements made with the DMM is
±10%.
Use only genuine replacement parts.