Vanguard BIG BLOCK M540000, Repair Manual

Page: 35 / 168

Gaseous-Fueled Engine Troubleshooting Chart
Gaseous-Fueled Engine Troubleshooting Chart
Problem Potential Cause Action
Debris and contamination on inlet needle of
regulator
Clean system of debris and
contamination. Add fuel filter
Regulator not positioned vertically Regulator may only be positioned with the outlet
pointing straight up. A directional arrow is also
shown on the smooth side of the regulator
Loose fitting Tighten fitting; replace if damaged Gas leak from fuel line
Damaged, cracked or worn hose Replace hose
Gas leak from regulator Damaged diaphragm in regulator Replace damaged components
Additional Troubleshooting Help
Your equipment may feature certain systems that can can
prevent the engine from operating or cause poor operation
characteristics. Follow standard troubleshooting procedures
to determine the cause of the problem. If the problem cannot
be located on the engine, there may be an issue with the
equipment.
Consult the equipment repair manual and follow the
troubleshooting procedures and steps.
36 vanguardpower.com