Engine Manual
Table Of Contents
- Safety Precautions and Instructions
- Introduction
- Service Assistance
- Section 1. Components and Maintenance Locations
- Section 2. Operation
- Section 3. Maintenance
- Section 4. Troubleshooting
- Section 5. Storage
- Section 6. Specifications
16 TP-7095 4/18
Direct Acting Electronic Pressure Regulator
Figure 4 Fuel Pressure Regulator
The direct acting electronic pressure regulator (DEPR) controls the gaseous fuel pressure and fuel delivery. The DEPR receives
fuel pressure commands from the ECM and modulates fuel pressure to the air-fuel mixer. The DEPR allows for fast and accurate
gaseous fuel control to provide a combustible mixture to the engine.
Air-Fuel Mixer
Figure 5 Air-Fuel Mixer
The air-fuel mixer is mounted in the air stream ahead of the throttle. It is a nonadjustable metering device that combines LPG/NG
vapor with intake air for combustion.
NOTICE
Avoid the possibility of component damage. The air-fuel mixer is an emission control device. Components inside the mixer
are specifically calibrated to meet the engine’s emission requirements and should never be disassembled or rebuilt. If the
mixer fails to function correctly, contact your KOHLER authorized distributor or dealer.