Section 5A. Lpg Fuel Systems - Kohler CH18-CH26 Service Manual

WARNING: Explosive Fuel!
LPG is extremely flammable, is heavier than air, and tends to settle in low areas where a spark or flame could ignite the gas.
Do not start or operate this engine in a poorly ventilated area where leaking gas could accumulate and endanger the safety of
persons in the area.
Proper service and repair of LPG fuel systems requires qualified technicians and special equipment. Many states
require special licensing or certification for LPG repair shops and/or technicians. Check state and local
regulations before attempting any adjustment, service, or repair of the LPG system or components. Faulty
repairs by unqualified or underqualified personnel can have very serious ramifications. The information in this
segment is for the exclusive use of qualified LPG service providers.
LPG Fuel System Components
The typical "liquid withdrawal" LPG fuel system consists of the following components:
• LPG Fuel Tank (Liquid Withdrawal)
• Electric Lock-Off/Filter Assembly
• Vaporizer
• LPG Regulator (Combination Primary/Secondary/Vacuum Lock-Off)
• LPG Carburetor
• High Pressure Fuel Line(s)
• Vacuum Line
Fuel Line
Vaporizer
Lock-Off/Filter
Assembly
LPG Regulator
Figure 5A-1.
Section 5A
LPG Fuel Systems
Section 5A
LPG Fuel Systems
Vacuum Line
5A
5A.1