Diagnosing Causes Of Engine Fault Shutdowns - Miller Electric Big Blue 502P Owner's Manual

7-8. Diagnosing Causes Of Engine Fault Shutdowns

Pre-Start Diagnostic Checks
Turn Engine Control Switch To Run/Idle
Position While Pressing Magnetic Shut-
down Switch.
Diagnostic Checks While Running
Start Engine (With No Load Applied).
Normal Condition:
Oil Pressure And Battery Charging Lights On;
Fuel And Temperature Lights Off.
If Oil Pressure Light Is Off, See Factory Authorized Service Agent.
If Battery Charging Light Is Off, Check Alternator And Belt.
If Temperature Light Is On, Correct Cause Of Overheating (See Engine Manual).
If Engine Is Okay, See Factory Authorized Service Agent.
If Fuel Light Is On, Check Fuel Level.
If Fault Continues, See Factory Authorized Service Agent.
20s
Continue Pressing Shutdown Switch
Until Engine Lights Go Off.
Use the front panel engine lights to
help determine the cause of an au-
tomatic engine shutdown.
.
Correct the cause of the shut-
down before operating the
welding generator.
.
This unit does not have a bat-
tery charging fault shutdown.
The engine continues to run if
the Battery Charging Light
goes on.
Normal Condition:
Engine Lights Go Off As Engine Reaches
Normal Operating Condition.
Lights That Stay On After 20 Sec. Indicate
Fault Condition.
Stop Engine And Correct Fault (See Above) If
Fault Continues, See Factory Authorized Ser-
vice Agent.
OM-491 Page 31
Ref. 191 631-A