Engine
74
Fuel Lines
When installing fuel lines, it is recommended that the connections be tightened only enough to prevent
leakage. This practice will help prevent twisting or breaking the flared line ends. After all fuel lines have
been installed and properly connected, run the engine long enough to determine that all connections are
tight and not leaking. If a leak is noted, tighten the connection only enough to stop the leak.
On the engine, flexible, metal-shielded, Teflon lines are used between the fuel filter and the fuel pump to
minimize damage caused by vibration.
Fuel Check Valve
Depending upon the model of fuel filter(s) on your bus, a check valve may be installed in the supply
line in the engine compartment to prevent fuel in the line from being siphoned back into the tank when
the engine is not running. If the check valve is removed, be sure the valve is reinstalled with the word
“TOP” facing upward and the arrow stamped on the valve body pointing in the direction of flow.
Summary of Contents for LOW FLOOR
Page 18: ...Specifications 18...
Page 58: ...Preventive Maintenance 58...
Page 110: ...Engine 110...
Page 138: ...Transmission Driveline Rear Axle 138...
Page 182: ...Suspension 182...
Page 260: ...Air System 260...
Page 420: ...Electrical System 420 Deutsch DT Series Connectors...
Page 421: ...Electrical System 421...
Page 422: ...Electrical System 422 Deutsch HD 10 Series Connectors...
Page 423: ...Electrical System 423...
Page 424: ...Electrical System 424 Deutsch HD 30 Series Connectors...
Page 425: ...Electrical System 425...
Page 442: ...Heating Air Conditioning 442...
Page 492: ...Body and Interior 492 Figure 11 33 USSC Seat Assembly...
Page 493: ...Body and Interior 493 Figure 11 34 USSC Seat Suspension Assembly...
Page 495: ...Body and Interior 495 Figure 11 37 Seat Air Connections...