Shibaura CG161 - Manual (Page 25)

23
LUBRICATION AND MAINTENANCE
Figure 24 - Fuel pre-filter
Draining Fuel
1. Place the tractor standing level and keeping
away from fire.
2. Provide a suitable pan to catch fuel under the
fuel pump located at the rear left hand side of
the tractor.
3. Disconnect inlet side hose of fuel pump,
Figure
24 and catch the fuel in the pan.
Bleeding the Fuel System
Bleed the fuel system after it has been drained:
l
If a new filter element or prefilter has been
installed,
l
If the tractor has run out of fuel,
l
If the lines leading to or from the filter have
been disconnected.
l
If the injection pump has been removed and
reinstalled.
Bleed the fuel system as follows:
WARNING: Fuel oil in the injection
system is under high pressure and can
penetrate the skin.
Unqualified persons should not
remove or attempt to adjust a pump
injector, nozzle or any part of the fuel
injection system.
Failure to follow these instructions can
result in serious injury.
DO NOT use your hand to check for
leaks. Use a piece of cardboard or
paper to search for leaks.
If any fluid is injected into the skin,
obtain medical attention immediately or
gangrene may result.
Never fail to check the fuel line
periodically. The fuel line is subject to
wear and ageing. fuel may leak out
onto the running engine, causing a fire.
1. Be sure there is adequate fuel in the fuel tank.
2. Open the fuel shut-oft valve, Figure 23.
3. Open the bleed screw, Figure 23.
4. Turn the key start switch to the “ON” position
without starting the engine to escape the air
bubbles by the electric pump.
Then tighten the bleed screw.
5. Push the hand throttle to the high speed
position. Turn the engine over for a few
seconds to bleed the high pressure fuel tube.
Injector Lines: Bleed the injector lines if the tractor
has run out of fuel, if new injectors have been
installed, or if the injection pump has been removed
for service.
1.
Loosen the injector line fittings at the
injectors, Figure 16 and Figure 23.
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
18-22 lbs. ft. (24-29Nm).
IMPORTANT : Do not crank the engine continuously
for more than 10 seconds. Doing so may cause
starting motor failure. If air is not purged from the
system, repeat the procedure.