IF
ENGINE FAILS
TO
START:
KEEP ENTIRE FUEL SYSTEM CLEAN AND FREE FROM WATER
DIESEL INJECTION
PUMPS
WILL FAIL IF SYSTEM CLEANLINESS
IS
NEGLECTED
INJECTION PUMPS AND NOZZLES ARE NOT FIELD REPAIRABLE
BLUE-WHITE EXHAUST SMOKE:
ENGINE
IS
GETTING FUEL
LITTLE
OR
NO EXHAUST SMOKE ENGINE
IS
NOT GETTING FUEL.
PRIME FUEL SYSTEM. OBSERVE FUEL FLOW FROM RETURN LINE.
.
1
I
8-79
98-4006
I
1
I
FUEL FLOWS STEADILY LITTLE
OR
NO FUEL FLOW
I
IF ENGINE
IS
STILL NOT GElTlNG FUEL, CHECK TRANSFER PUMP
1.
CRANK ENGINE AND OBSERVE FUEL FLOW FROM RETURN LINE.
2.
IF FUEL DOES NOT SPURT OUT. PUMP MAY BE DEFECTIVE.
I
CHECK PREHEAT SYSTEM:
1.
OBSERVE AIR HEATER
THRU AIR INLET.
2.
ENGAGE PREHEAT.
3.
IF HEATER ELEMENT DOES
NOT GLOW RED WITHIN
30
SECONDS. CHECK AIR
HEATER AND GLOW PLUG
WIRING:
CONNECTIONS TIGHT?
FREE FROM CORROSION?
II
I
CHECK FUEL SOLENOID:
I
CLOGGED FUEL FILTERS?
ON. IF NOT. CHECK FOR
BINDING LINKAGE
SOLENOID
ROD
-THROTTLE
ARM
I
I
IF ENGINE STILL DOES NOT START. CONTACT AUTHORIZED ONAN SERVICE REPRESENTATIVE
AUTOMATIC STARTING AND STOPPING
Optional controls may be used for automatic start
and stop, but must provide engine preheating.
The automatic control should have
a
time delay relay
to preheat glow plugs and the manifold heater for at
least
20
seconds before cranking occurs. The time
delay relay prevents immediate engagement of the
starter in case the load is reapplied before the engine
stops.
APPLYING LOAD
If practicable, allow engine to warm up before con-
necting a heavy load. Continuous overloading causes
high operating temperatures that can damage the
engine. The exhaust system may form carbon depos-
its during operation at light loads; apply full load
occasionally before shut-down to prevent excessive
carbon accumulations.
Try to apply the load in steps instead of full load at
one time.
BREAK-IN PROCEDURE
The unit should be run in the following sequence:
1.
One half hour at
l/2
load.
2.
One half hour at
3/4
load.
3.
Full load.
Continuous running under one half load during the
first few hundred hours may result in poor piston ring
seating, causing higher than normal oil consumption
and blowby.
Drain and replace the crankcase oil after first
50
hours of opera-
tion; drain while the engine
is
still hot.
INSPECTION
Check for alignment of engine and load. Misalign-
ment will cause excessivevibration and bearing wear.
Make a visual inspection of the entire installation.
Contact with rotating machinery
might cause serious personal injury
or death. Stay clear of rotating components and
ensure that protective shields andguards are in place
and secured before operating machinery.
10
Redistribution or publication of this document,
by any means, is strictly prohibited.
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