Onan DYG Series Operator's Manual And Parts Catalog page 30

TABLE 4.
T R O U B L E S H O O T I N G ENGINE SHUTDOWN SYSTEM
(Engines with only one fault lamp)
SYMPTOM
~ C O R R E C T I V E ACTION
1. Engine stops cranking and'fault
lamp lights, after iqranking
approximately 75 seconds.
l . See engine service manual for
troubleshooting fuel system.' ~
After correcting problem, reset engine
monitor.relay by placing Run-Stop/
Reset-Remote switch to Stop/Reset,
" then back to the required running
position.
2. Fault lamp.lights immediately
after engine starts. " -
2. Check for: , . «
Overspeed condition as engine starts.
3. Fault lamp lights and engine
shuts d o w n after running for
a period. :
i
- >
3. Check the following:
a; Oil level. Engine will shut down " •
if sensor is closed,
b. Check engine manual for
troubleshooting oil system.
- c. High engine temperature. Check
coolant level; check water flow
(city water cooled systems);
check radiator for free air flow,
and fan belts for tightness. See ,
engine manual for troubleshooting
cooling system.
d. Check for faulty oil pressure
sensor or faulty high'engine
temperatu re siensor.
4. Engine runs, shuts down and
cranks for 75-seconds. Cranking
cycle stops; fault lamp lights.
4. Check fuel supply.
5. Fault lamp lights, no fault
exists.
5. To check a no-fault condition,
disconnect leads from TB11 terminals
29, 30 and 3 1 . If fault lamp lights
with leads disconnected, replace
engine monitor board. Reconnect leads.
28