Fuel System Inspection and MaintenanceNatural Gas/Propane Fuel System

The fuel system installed on this industrial engine has been designed to various standards to ensure performance and reliability. To ensure compliance to these standards, follow the recommended maintenance schedule contained in this section.

Pressure Regulator Maintenance and Inspection

NOTICE: The pressure regulator components have been specifically designed and calibrated to meet the fuel system requirements of the engine.

If the regulator fails to operate or develops a leak, it should be repaired or replaced with the OEM recommended replacement parts. When inspecting the regulator, check for the following items:

•Check for any fuel leaks at the inlet and outlet fittings.

•Check for any fuel leaks in the regulator body.

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 manifold to exhaust pipe fasteners to ensure they are tight and that there are not exhaust leaks. Repair as necessary.

•Inspect the oxygen sensor electrical connector to ensure connector is seated and locked, check wires to ensure there is no cracking, splitting, chaffing, or burning. Replace or replace if necessary.

•Inspect exhaust pipe connection for leaks. Repair if necessary.

Engine Exterior

Periodically inspect the engine exterior for contamination and potential damage from dirt, leaves, rodents, spider webs, insects, etc. and remove.

 

REPRODUCTION

• 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 InspectionWhen Calling for Assistance

NOTICE: The venturi and throttle body components have been

You must have the following information at hand if it is

specifically designed and calibrated to met the fuel system

necessary to contact a local service center regarding service

requirements of the engine.

 

or repair of this unit:

 

 

 

1. Obtain the unit Model Number and Serial Number from

When inspecting the venturi and throttle body, check for the

the unit ID label. See Controls for location of the label

following items:

 

or refer to the information recorded on the inside front

NOTICE: A dirty air cleaner mayNOTsignificantly alter the venturi

cover of the installation manual.

performance.

for

2. Obtain the engine identification numbers from the

•

Leaks at all fittings.

engine label. See the Installation manual for location of

this information.

•

Ensure the venturi and throttle body are securely

 

 

mounted.

 

 

•

Inspect air cleaner element according to the

Storage

 

recommended maintenance schedule found in this

The generator system is designed for long term service as

 

section.

 

a backup generator. There is no need to take any storage

•

Inspect air inlet hose connection and clamp. Inspect

precautions. However, if it becomes necessary to take the

 

hose for cracking, splitting, or chaffing. Replace if any

system out of service for an extended period, call Technical

 

of these conditions exist.

 

Services at 800 743‑4115, between 8:00 AM and 5:00 PM CT

•

Check fuel lines for cracking, splitting, or chaffing.

for specific recommendations.

 

 

Replace if any of this conditions exist.

 

•

Check for leaks at the throttle body and intake manifold.

 

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