Service Air Cleaner - Briggs & Stratton Fortress Installation And Operation Manual

Service Air Cleaner

Your engine will not run properly and may be damaged
if you run it with a dirty air cleaner. Clean or replace
more often if operating under dusty or dirty conditions.
To service the air cleaner, follow these steps:
1. Press and hold the control board OFF button.
2. Remove 15 Amp fuse from control board.
Remove the knob (A) and the cover (B). Remove
the nut (C) and the retainer(D).
3. Remove air filter (E).
4. To loosen debris, gently tap air cleaner on a hard
surface. If air cleaner is excessively dirty, replace
with a new air cleaner.
5. Install the air filter and secure with retainer and
nut.
6. Install the cover and secure with knob.
NOTICE Replacement parts must be the same and
installed in the same position as the original parts.
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Fuel System Inspection and Maintenance
Natural Gas/Propane Fuel System
The fuel system installed on this engine has been
designed to various standards to ensure performance
and reliability. To ensure compliance to these
standards, follow the recommended maintenance
1.
schedule contained in this section.
NOTICE The fuel system components have been
specifically designed and calibrated to meet the
fuel system requirements of the engine. If a fuel
system component fails to operate or develops a
leak, it should be repaired or replaced with the OEM
recommended replacement parts.
Pressure Regulator Maintenance and Inspection
• Check for any fuel leaks at the inlet and outlet
fittings.
• Check for any fuel leaks in the regulator body.
• Check to ensure the regulator is securely mounted
and the mounting bolts are tight.
• Check the regulator for external damage.
Venturi/Throttle Control Device Maintenance and
Inspection
NOTICE A dirty air cleaner may significantly alter the
A
venturi performance.
• Leaks at all fittings.
• Ensure the venturi and throttle body are securely
B
mounted.
• Inspect air cleaner element according to the
recommended maintenance schedule found in
this section.
• Inspect air inlet hose connection and clamp.
C
Inspect hose for cracking, splitting, or chaffing,
Replace if any of these conditions exist,
D
• Check fuel line for cracking, splitting, or chaffing.
Replace if any of these conditions exist.
• Check for leaks at the throttle body and intake
E
manifold.
Exhaust System Maintenance and Inspection
When inspecting the exhaust system, check the following:
• Inspect exhaust manifold at the cylinder head for
leaks and that all retaining bolts and shields (if
used) are in place.
• Inspect muffler for exhaust leaks. Repair as
necessary.
Engine Exterior
Periodically inspect the engine exterior for
contamination and potential damge from dirt, leaves,
rodents, spider webs, insects, etc. and remove.