Index Freightliner Freightliner Business Class M2 (M2 100, M2 106, M2 106V, M2 112, M2 112V) - service repair manual
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• All fittings, connections, and joints 8. Replace leaking or damaged fuel lines. Repair or 47–06 CNG High-Pressure Fuel Filter Element Replacing CNG filter element replacement cycles are an impor- 1. Shut down the engine and apply the parking 2. Close the CNG fuel cylinder shutoff valves. 3. Start the engine and let it idle until the fuel lines 4. Close the manual fuel shutoff valve on the fuel 5. Remove the two capscrews that secure the ac- . Save the capscrews for reinstallation. 6. Slowly open the bleed valve on the manifold to IMPORTANT: Some pressure may remain in the 7. Put a clean receptacle under the filter assembly. 8. Remove and discard the filter element. 9. Install a new filter element in the filter housing. 10. Inspect the O-ring on the filter housing for dam- age or cracks. If necessary, replace the O-ring. 05/04/2010 f470555 1 2 3 3 1. Frame Rail 2. CNG Fuel Cylinder Storage Box 3. Mounting Bolts (qty 12 per side) Fig. 7, Fuel Cylinder Storage Box Mounting Bracket (passenger side shown) H IG H PRESSURE PRESS UR E LOW CYLINDERS INSPECT CYLINDERS EVERY 36 MONTHS OR 36000 MILES WHICHEVER OCCURS FIRST NATURAL GAS VEHICLE 110 PSIG ON M A N U A L S H U T O FF V A LV E OPEN VALVE SLOWLY 3600 PSIG MAX. SERVICE PRESSURE REGULATOR FILTER INSPECT PRESSURE RELIEF DEVICE EVERY 2000 MILES DRAIN HOUSING EVERY 1500 MILES REPLACE ELEMENT EVERY 3000 MILES 1 2 3 4 04/30/2010 f470556 1. High Pressure Gauge 2. Low Pressure Gauge 3. Manual Fuel Shutoff Valve 4. Fuel Fill Port and Dust Cap Fig. 8, CNG Fuel Panel Fuel 47 Business Class M2 Maintenance Manual, August 2015 47/9 |