Instruction manual

Periodic inspection and maintenance GAW-185ES2
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3-5 Protective devices
The welder is equipped with protective devices indicated below that act against errors during running.
When any of these protective devices is activated, immediately stop running of the welder and carry out
troubleshooting of the abnormal point.
List of protective devices
Action
Item
Engine shut
down
AC output shut
down
Welding out
put shut
down
Lamp
indication
Release of protecting
Oil level drop
○
--- ---
○
Oil feed
Control unit
input over
voltage
---
○
--- ---
Release automatically by
engine revolution slow.
AC output over
current
---
○
--- ---
AC power out put switch “OFF”
position.
AC output over
voltage
---
○
--- ---
AC power out put switch “OFF”
position.
AC control unit
high
temperature
---
○
--- ---
AC power out put switch “OFF”
position and unit temprature
fall.
Welding control
unit high
temperature
--- ---
○
---
Release automatically by
temperature fall.
Note: In case of fuse blow, check the wiring for abnormality and check for entry of foreign matters, before
fuse replacement.