Engine Faults - Hobart Jet-Ex 5D Operation And Maintenance Manual

OM-2094 / Operation and Maintenance Manual
Jet-Ex 5D / Series 500285 / Generator Set
(2) Cooling fan
The cooling fan on the engine is designed to blow air out through the radiator rather than to draw
it in. This prevents hot air, heated by the engine, from entering the generator.
(3) Fuel system
The fuel system consists of a 20.5-gallon (77.6 liters) plastic fuel tank (2, Figure 2) with all the
necessary fittings and hoses.
(4) Alternator
The battery charging alternator (2, Figure 3) is rated at 65 amperes. The alternators
responsibility is to produce/regulate 12V DC for the generator sets internal electrical system.
(5) Starter solenoid
The starter solenoid (5, Figure 3) is mounted on the starter motor (4), on the right side of the
engine.
(6) Exhaust muffler (1, Figure 3)
This muffler helps deaden audible noise from the engine's exhaust.

(7) Engine faults

The following is a table listing faults which may occasionally occur. Column two of the table
explains what happens in the engine's circuitry when the fault occurs, and column three tells how
to return the generator set to service.
Engine Fault Condition
Over Temperature
Low Oil Pressure
Clogged air cleaner or
other restriction in the
combustion air inlet.
Chapter 1-1
Page 8
ENGINE FAULTS
What This Fault Condition Does
Automatically removes power
from the fuel valve solenoid and
shuts down the engine
Automatically removes power
from the fuel valve solenoid and
shuts down the engine
Turns on the air cleaner
restriction indicating light
(16, Figure 5)
To Put the Generator Set Back
into Service:
a) Let the engine cool down
enough to check for low coolant
level and or faulty over
temperature switch. Restart
engine.
a) Let the engine cool down
enough to check for low oil level
and or faulty oil pressure switch.
Restart engine.
a) Replace clogged air filter if
needed; clean out the air intake
chamber. Restart engine.
November 1, 2000
Revised 06/01