Engine Fuel System - Hobart 60CU20 Operation And Maintenance Manual With Illustrated Parts List

OM-2226 / Operation and Maintenance Manual
60CU20 / Series 500062 / 400 Hz. Generator Set

5) Engine Fuel System

The fuel system consists of five primary components: fuel tank, lubricity filter, primary fuel filter, fuel lift
pump, and the fuel return line. The following are maintenance procedures for each of these items.
a) Fuel Tank
Be sure that no foreign objects are permitted in the fuel tank. The fuel tank must be removed and
flushed out if objects are found in the Fuel Water Separator or Lubricity Additive Filter.
b) Fuel Water Separator or Lubricity Additive Filter
A lubricity fuel filter, which is also a fuel/water separator, is mounted in the generator compartment
above the fuel tank outlet. The filter's function is to add a lubricant to the fuel to help prolong the
engine seals and fuel pump life when fuels other than diesel are used (i.e. jet fuel). The filter also
removes foreign material and removes both free and emulsified water from the fuel before it enters
the fuel lift pump. Daily draining of the filter is required.
Replacement Filter Element:
•
Hobart: 286897-031
•
Cummins. FS20022
Drain the water daily.
Replace the filter after every
500 hours of operation.
To drain the water:
(1) Open drain valve
(2) Drain accumulated water and contaminants.
(3) Close drain valve.
The lubricity filter must be changed after every 500 hours of operation in order for the fuel filter to
continue adding the proper amounts of the lubricity additive into the fuel system.
May 2, 2013
Figure 4: Lubricity Filter
Water Drain
Chapter 2-2
Page 8