Lincoln Electric CLASSIC 300 D - Manual (Page 27)

E-6 TROUBLESHOOTING E-6
CLASSIC® 300D KUBOTA
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
LIGHT CODE FAILURE DETECTED POSSIBLE CAUSE - CORRECTIVE MEASURE
LONG 1, SHORT 1 RPM IS OVER 115% OF RATED RPM (2070 RPM) ACTUATOR IS STUCK - REMOVE ACTUATOR AND VERIFY
PLUNGER PULLS IN WHEN ENERGIZED
LONG 1, SHORT 2 LOW OIL PRESSURE DETECTED FOR 1 SECOND LOW OIL - CHECK OIL LEVEL ON DIPSTICK
FAULTY OIL PRESSURE SWITCH - CHECK THAT "WK"
STUD IS OPEN WHEN ENGINE IS RUNNING
LEAD TO OIL PRESSURE SWITCH "WK" STUD MAY BE
GROUNDED - CHECK
LONG 1, SHORT 3 "L" TERMINAL IS GROUNDED ON ALTERNATOR BROKEN OR LOOSE BELT
FOR 1 SECOND LEAD TO "L" TERMINAL ON ALTERNATOR MAYBE
SHORTED TO GROUND- CHECK
FAULTY ALTERNATOR - CHECK
LONG 1, SHORT 4 HIGH WATER TEMPERATURE DETECTED AMOUNT OR QUALITY OF COOLANT INCORRECT
FOR 1 SECOND - CHECK
FAULTY WATER TEMPERATURE SWITCH - CHECK THAT
"WK" STUD IS OPEN WHEN ENGINE IS NOT RUNNING
LEAD TO WATER TEMPERATURE SWITCH MAY BE
GROUNDED - CHECK
LONG 1, SHORT 5 NOT ENABLED FOR LINCOLN PRODUCTS
LONG 2, SHORT 1 0 RPM IS DETECTED AND 12V IS DETECTED FAULTY RPM SENSOR-CHECK FOR GOOD CONNECTION
FROM "L" TERMINAL ON ALTERNATOR FAULTY ECU - CHECK FOR 12 VOLTS ON SUPPLY LEAD
TO RPM SENSOR FROM ECU
LONG 2, SHORT 2 CURRENT TO ACTUATOR IS OUT OF LIMIT FAULTY ACTUATOR - CHECK FOR PROPER COIL
RESISTANCE
LEADS TO ACTUATOR MAY BE OPEN OR GROUNDED
- CHECK
LONG 2, SHORT 3 NOT ENABLED FOR LINCOLN PRODUCTS
LONG 2, SHORT 4 -50C WATER TEMPERATURE DETECTED FAULTY WATER TEMPERATURE SENSOR - CHECK FOR
PROPER RESISTANCE
LEAD TO WATER TEMPERATURE SENSOR MAY BE OPEN
- CHECK FOR CONTINUITY
LONG 2, SHORT 5 150C WATER TEMPERATURE DETECTED FAULTY WATER TEMPERATURE SENSOR - CHECK FOR
PROPER RESISTANCE
LEAD TO WATER TEMPERATURE SENSOR MAY BE
GROUNDED - CHECK
LONG 2, SHORT 6 0 VOLTS DETECTED FROM "L" TERMINAL ON LEAD TO "L" TERMINAL ON ALTERNATOR MAY BE OPEN
ALTERNATOR FOR 1 SECOND
- CHECK FOR CONTINUITY
BROKEN OR LOOSE BELT - INSPECT
FAULTY ALTERNATOR - CHECK
LONG 2, SHORT 7 OVER 18 VOLTS DETECTED FROM ALTERNATOR INCORRECT BATTERY - INSPECT
FAULTY ALTERNATOR - CHECK
LONG 2, SHORT 8 LESS THAN 4 VOLTS TO RPM SENSOR AND/OR FAULTY ECU -CHECK FOR 12 VOLTS ON LEADS TO RPM
ACTUATOR SENSED BY ECU
SENSOR AND ACTUATOR FROM ECU