ENGINE/GENERATOR
TROUBLESHOOTING
OPERATING
PROCEDURES
The following chart is repeated from the operators manual.
The problems described do not relate to problems
consistent with an engine overhaul. This chart is included
only as a convenience to the operator
or
service technician.
ENGINE
TROUBLESHOOTING
If
the engine stops while running for no apparent reason
and the remote control panel indicator lamp is flashing, this
indicates that an engine operating fault has occurred as a
result
of
one
or
more
of
the following conditions:
1. Low oil pressure
2. High engine water temperature
3. High exhaust temperature
4. Low battery voltage
PROBLEM
PROBABLE
CAUSE
Engine does not
1.
Voltage drop at starter solenoid
crank.
terminal.
2. Engine 20A circuit breaker has
tripped.
3.
Battery is low or dead.
4.
Loose battery connections.
s.
Faulty wire connection.
6.
Faulty start switch.
7.
Faulty starter solenoid.
S.
High exhaust back-pressure.
9.
Sea water filled cylinders.
Engine starts, runs
1.
Fuel line restriction.
but does not come
2.
Dirty fuel filter.
up to speed.
3.
Throttle plate binding.
4.
Faulty fuel pump.
S.
AC generator overload.
6.
High exhaust pressure.
Engine starts, runs
1.
Faulty shutdown switch,
. and then shuts (oil pressure, water or exhaust
down.
temperature).
2.
High engine water or exhaust
temperature.
3.
Dirty fuel filters.
4.
Mechanical check valve at the
fuel supply faulty.
S.
Low oil level in sump.
6.
Faulty fuel pump.
7.
High exhaust back pressure.
Before restarting the engine, the cause
of
the problem
should be determined and corrected.
The tables that follow suggest a troubleshooting procedure
based upon certain engine problem indicators and the most
likely causes
of
the problem.
When troubleshooting indicates an electrical problem refer
to the WIRING DIAGRAMS in this manual, these diagrams
may reveal other possible causes
of
the problem which are
not listed below.
PROBLEM
PROBABLE
CAUSE
Engine hunts.
1.
Throttle plate is binding.
2.
Low battery voltage.
3. Generator is overloaded.
4.
Dirty fuel filter.
s.
Damaged vacuum hose.
6.
Cracked distributor cap.
7.
Faulty high tension wires.
S. Faulty fuel pump.
9. High exhaust back-pressure.
10.
Valves are out
of
adjustment.
Engine cranks but
1.
Out
of
fuel.
fails to start.
2.
Fuel pump inoperative.
3.
Engine is flooded.
a. Carburetor float needle valve
is open or damaged. Clean or
replace the needle valve.
b.
Float in carburetor is leaking.
Repair
or
replace float.
c. Float chamber gasket damaged
or
securing screws are loose.
Replace gasket and/or tighten
screws.
4. High tension wires grounding
(wet system).
s.
Faulty ignition coil
6.
Faulty distributor.
7.
Faulty wire connection.
S.
Worn or faulty spark plugs.
9.
Faulty run relay (K2).
10.
Timing belt.
11.
No
engine compression.
12.
Faulty idle adjustment.
13. High exhaust back pressure.
Engines & Generators
73
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