Be sure hose and hose connections are
leak-proof. Insure that the air cleaner
cover is properly secured. Unfiltered air
can cause serious damage to the engine.
Figure 4-8 Air cleaner assembly, removal and installation.
4-22. Fuel Filters
(1) Refer to figure 4-10 and service the fuel
a. General. Change the secondary filter every 250
(2) Inspect hoses for deterioration and cuts.
hours of operation and service the primary filter
Inspect the body and head for cracks and breaks.
every 50 hours.
Replace defective parts.
b. Removal. Refer to figure 4-9 and remove the
d. Installation. Refer to figure 4-9 and install the
primary and secondary fuel filters.
primary and secondary fuel filters. Use new gaskets
c. Cleaning and Inspection
and be sure the mounting surfaces are clean.