Changing The Fuel Filter - Komatsu PC27R-8 Operation & Maintenance Manual

MAINTENANCE PLAN
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 «
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.
160
4
2
3
» and let
1
RWA09260
MIN.
RYA12210
RWA01970