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OM-2084 / Operation and Maintenance Manual
90CU24 / Series 500392 Generator Sets
b. Fill NEW element with CLEAN fuel.
CAUTION
c. Install new element and tighten by hand until seal touches filter head. Tighten an additional
one-half to three-fourths turn.
Engine Cooling System
5.
a. General
Cooling system service requires more than maintaining the proper coolant level in the radiator and
protecting the system against freezing. Water should by clean and free of any corrosive chemicals
such as chloride, sulphate, and acids. It should be kept slightly alkaline with a pH value in the range
of 8.0 to 9.5. Any water which is suitable for drinking can be used in the engine when properly
treated as described in Cummins Operation and Maintenance Manual. The Cummins Distributor
should be consulted regarding the selection of satisfactory brand, permanent-type antifreeze for use
in the cooling system.
b. Radiator Cap
(1) General
A pressure relief valve is built into the radiator cap. It is designed to open at a pressure of
approximately seven psi.
Chapter 2-2
Page 8
When installing new element, do not over tighten it. Tightening it with
mechanical tools may distort or crack filter head.
Fuel Filter
Fuel Filter
(Left Side of Unit)
Figure 8
November 27/1997
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Troubleshooting
