Yanmar 3JH4E Service Manual page 95

5) Bleed the fuel system. Refer to 2.2.3.(1).
IMPORTANT:
Be sure to use genuine Yanmar part (super fine
mesh filter). Otherwise, it results in engine
damage, uneven engine performance and
shorten engine life.
[4JH4-TE and 4JH4-HTE]
Replace the fuel filter periodically before there
is clogging and the fuel flow is reduced.
1) Close the fuel cock of the fuel tank.
2) Drain the fuel from the fuel drain cock at the
bottom of the fuel filter.
3) Remove the connectors of the wiring and
remove the alarm switch using spanner.
4) Remove the fuel filter using the filter wrench.
5) Clean the fuel filter mounting face.
6) Replace the fuel filter with new one. Tighten
the new fuel filter.
Part No. of the fuel filter: 129574-55800
• Install the alarm switch to the new fuel filter.
• Apply fuel oil to the gasket of the new fuel
filter.
• Lightly screw in the fuel filter in position and
tighten it by hand until the gasket comes into
contact with the seat. After tightening by
hand, use the filter wrench to tighten it about
3/4 of a turn.
[Tightening torque: 11.8-15.6Nm
7) Bleed the fuel system.
Refer to 2.2.3(1) for the air bleeding
procedure.
• If you spill fuel, wipe spillage carefully.
• Start the engine to check for fuel leakage.
(3) Replace the engine lube oil and the lube
oil filter.
Refer to 2.2.2(2) for the procedure.
(4) Replace the marine gear lube oil and the
lube oil filter.
Refer to 2.2.2(3) for the procedure.
(1.2-1.6kgf m)]
•
Fuel filter
75
2. Inspection and adjustment
Tighten
Loosen Filter wrench
008422-01E