Amada 300 Series, Operation Manual

Page: 53 / 80

SERIES 300 FAST RESPONSE WELD HEAD SYSTEM
990-115 4-1
CHAPTER 4
Maintenance
Section I: Service Precautions
General Operator Safety
Warning:
Always wear safety glasses any time you are operating the Weld Head.
Never wear loose clothing or jewelry when operating the weld head. It could be caught in the mechanism.
Before operating the Weld Head, read this manual and the power supply manual. Particularly note the
specific hazards associated with those components.
Section II: Operation Troubleshooting
Your Series 300 Fast Response Weld Head system is designed with reliability as a top user priority. But,
occasionally, you will run into a problem and need some help to get back to normal operation. Reading this
chapter will speed up the process.
General Kinds of Problems
NOTE:
It has been our experience that 99% of all weld head and resistance welding power supply
‘problems’ are caused by lack of material control, process control and electrode tip surface maintenance.
The problems that you might encounter fall into two groups:

Soft
– The problem is transient, and you can correct it by re-calibrating the system or re-setting limits,
for example.

Hard
– The problem is imbedded in the system and some form of repair or upgrade will be needed.
In either case, built-in automatic self-test and self-calibration routines will bring up alarm messages on the
display screen. These messages will usually let you know what action is required of you to correct the
reason for the alarm. For a complete listing of the alarm messages, what they mean, and what to do about
them, please refer to table 4-1.