Blue Bird Coachworks 450 LXi, Руководство пользователя

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5-3 Engine Maintenance
450 LXi Owner Manual
~ 5-3-38 ~
Rev. “C”
Install the new fuel fi lter. Spin the fuel fi lter onto the fuel fi lter base until the gasket contacts the base. Use the rotation
index marks on the fi lters as a guide for proper tightening. Tighten the fi lter for an additional one turn (360 degrees) by
hand. Do not overtighten the fi lter.
Open the fuel supply valve. Prime the fuel system. Refer to “ Fuel System - Prime ” section in this manual for more
information. Start the engine and inspect the fuel system for leaks.
5.
6.
5-3.41 Fuel System Water Separator - Drain
(1) Drain
A water separator is recommended. The water separator should be installed between the fuel
tank and the engine fuel inlet. Drain the water and sediment from the water separator on a
daily basis.
Open drain (1). Catch the draining water in a suitable container. Dispose of the water
properly. 1.
Close drain (1). 2.
5-3.42 Fuel Tank Water and Sediment - Drain
5-3.42.1 Fuel Tank
Fuel quality is critical to the performance and to the service life of the engine. Water in the fuel can cause excessive wear to
the fuel system. Condensation occurs during the heating and cooling of fuel. The condensation occurs as the fuel passes
through the fuel system and the fuel returns to the fuel tank. This causes water to accumulate in fuel tanks. Draining the fuel
tank regularly and obtaining fuel from reliable sources can help to eliminate water in the fuel.
WARNING!!
Fuel leaked or spilled onto hot surfaces or electrical components can cause a fi re. To help prevent
possible injury, turn the start switch off when changing fuel fi lters or water separator elements. Clean up fuel spills
immediately.
NOTICE: Care must be taken to ensure that fl uids are contained during performance of inspection,
maintenance, testing, adjusting and repair of the product. Be prepared to collect the fl uid with suitable containers
before opening any compartment or disassembling any component containing fl uids.
Dispose of all fl uids according to local regulations and mandates.
NOTICE: The water separator is under suction during normal engine operation. Ensure
that the drain valve is tightened securely to help prevent air from entering the fuel system.
NOTICE: The water separator is not a fi lter. It separates water from the fuel.
The engine should never be allowed to run with the water level in the separator more than ½ full or engine damage
may result.
NOTICE: Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for
two minutes before cranking the engine again.
NOTE: There should be enough residual fuel in the cylinder head in order to start the engine. If the engine
stops after starting, do not crank the engine for more than 30 seconds. Then allow the starting motor to cool for two
minutes. Repeat this procedure until the engine starts and the engine operates.