2. The engine alternator may be faulty, causing the CR1 relay (PC Board on later models) to activate, which signals the engine protection relay to shut off the fuel solenoid.
3. The protection relay may be faulty. Note: On later models the Idler Engine Protection PC board may be faulty.
4. The engine fuel injectors may need service.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216- 383-2531 or 1-800-833-9353.
CLASSIC II
1. Check for adequate fuel supply.
2. Check engine oil level.
3. Check engine alternator belt.
The engine starts but shuts down after a short period of time.
4. The engine fuel injectors may need service.
1. The oil pressure or oil tempera- ture sensor may be causing the engine protection relay (PC Board on later models) to shut off the fuel solenoid. Make sure oil pressure and temperature are correct before replacing sensors.
4. On later models check the fuel solenoid circuit breaker located near the welding output termi- nals. Reset if tripped.
3. The engine protection relay may be faulty. Note: On later models the Idler/Engine Protection PC board may be faulty.
3. Check the fuse in the engine protection relay. Note: Not present on later models.
2. Check the fuel solenoid. Make sure it is opening when 12VDC is applied to leads #58(+) to #60(-).
The engine “cranks” but will not 1. Check for adequate fuel supply.
start.
2. Press the engine protection “Reset” button. Note: On later models without a “Reset” but- ton, turn the ignition switch “OFF” and then back “ON.”
1. Check the ignition switch for proper operation. Check the associated leads for loose or faulty connections. See the Wiring Diagram.
POSSIBLE AREAS OF
MISADJUSTMENT(S) ENGINE PROBLEMS
PROBLEMS (SYMPTOMS)
RECOMMENDED COURSE OF ACTION
Observe Safety Guidelines detailed in the beginning of this manual.
TROUBLESHOOTING GUIDE
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