SERIES 50 FUEL MIXER FOR THE SERIES 50G HIGH PRESSURE SYSTEM 1998 AND LATER
The venturi fuel mixer assembly consists of a die cast aluminum body with a spun aluminum venturi permanently inserted into it. The unit has no moving parts. The mixer assembly is attached to the throttle located at the left front of the engine. See Figure
1. Fuel Temperature Sensor
5. Air Inlet Elbow
6. Low Pressure Regulator
3. Fuel Mixer
7. Air Temperature Sensor
8. Fuel Pressure Sensor
9. Fuel Inlet Tee Fitting
Fuel Mixer for the Series 50G
Replacement of Fuel Mixer for the Series 50G Engine
The fuel mixer is non-serviceable and should be replaced as a unit. No adjustment is required.
Removal of Fuel Mixer for the Series 50G Engine
Remove the fuel mixer as follows:
To avoid injury from the explosion of natural gas, the engine must be kept in a well ventilated area away from open flames, sparks, and electrical resistance (heating) coils.
Connect hose between mixer and charge cooler outlet tube.
To avoid injury from an explosion of natural gas, the following precautions must be taken:
Use a combustible-gas detector. Liquefied natural gas (LNG) is odorless and cannot be detected by smell. Compressed Natural gas (CNG) may be odorless and may not be detected by smell.
Equipment fuel systems are the responsibility of the Original Equipment Manufacturer (OEM). Equipment fuel system guidelines must be closely adhered to when installing or servicing equipment. Refer to OEM guidelines specifying which maintenance procedures require venting of fuel lines and fuel tanks.
LNG systems are pressurized and contain extremely cold (-260
C]) fluids. Contact the fuel supplier or OEM for LNG safety requirements. Contact with LNG may cause personal injury (freezing).
Vent systems on the equipment should be ducted to a safe area whenever equipment is in an enclosed area.