To Bleed The Fuel System; Bleeding The Injector Lines - Shibaura ST450 Operator's Manual

To bleed the fuel system:

1. Make sure there is adequate fuel in the fuel
tank.
2. Open the fuel shutoff valve (1) in Figure 3-9.
3. Remove hose (2) in Figure 3-10, from the top
of the bleed fitting. Reinstall hose when
air-free fuel starts to flow.
4. Push the hand throttle to the high-speed
position. Turn the engine over for a few
seconds to bleed the high-pressure fuel
tubes.

Bleeding the Injector Lines

Bleed the injector lines if:
• The tractor has run out of fuel.
• New injectors have been installed.
• The injection pump has been removed for
service repairs.
To bleed the injector lines:
1. Loosen the injector line fittings (1) in Figure
3-11, at the injectors.
2. Move the hand throttle control lever to its
wide open position.
3. Crank the engine until air-free fuel flows from
each connection, then tighten the fittings to
24-29 N·m.
IMPORTANT: If air is not purged from the system,
repeat the above procedures.
Do not crank the engine continuously for more
than 30 seconds as this may cause starter motor
failure.
SECTION 3 – LUBRICATION AND MAINTENANCE
3-10
Figure 3-9
Figure 3-10
Figure 3-11