Komatsu PC20R-8, Руководство по эксплуатации и техническому обслуживанию

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MAINTENANCE PLAN
160
4.7.9.b CHANGING THE FUEL FILTER
DANGER
•
Change the filtering element after work, when the engine has cooled down to 40÷45°C.
•
When these operations are carried out, fuel may be spilled; clean the dirty areas immediately, in order
to prevent any risk of slipping or fire.
•
Oils, filters, the coolant and the battery are considered special waste and must be collected and dis-
posed of according to the anti-pollution regulations in force.
The fuel filter can be reached after opening the engine hood
(See “3.5.1 ENGINE HOOD”).
FUEL FILTER
1 - Close the fuel tap (1).
2 - Loosen the metal ring (2) by means of the special spanner
provided, remove the container (3) and extract the filtering el-
ement.
3 - Clean the sealing surface of the cover (4) and install the new
filter in the container (3); install the O ring of the cover and
smear it with some grease.
4 - Reassemble the whole unit, open the fuel tap (1) and bleed
the fuel supply circuit after shifting the accelerator lever to the
idling position.
BLEEDING THE CIRCUIT
DANGER
•
The engine may start during the bleeding of the circuit;
make sure that there is no one near the machine.
After filling the tank, turn the ignition key to position « » and let
the starter run for approximately 15÷20 seconds in order to
bleed the fuel supply circuit.
IMPORTANT
☞
•
If the engine starts without problems and then stops or
works irregularly, check if there is air in the circuit; if so,
check the tightness of the fuel filter and of the fuel pump
prefilter.
•
After all the fuel has run out, bleed the circuit by proceed-
ing as described above.
RWA01970
RWA09260
1
2
3
4
RYA12210
MIN.