Komatsu PC22MR-3, Operation & Maintenance Manual

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MAINTENANCE
MAINTENANCE PROCEDURES
4-53
CHANGING THE FUEL FILTER ELEMENT (WITH WATER SEPARATOR) 4
WARNING
q
Change the filtering element after work, when the engine has cooled down to 40–45°C.
q
During these operations some fuel may be spilled; clean the dirty areas immediately, in order to
prevent any risk of slipping or fire.
q
Oils, filters, the coolant and the battery are considered special waste and must be collected and
disposed of according to the regulations in force.
Fuel filter
1. Open the engine cover.
(For details, see "ENGINE HOOD (3-32)").
2. Turn the valve (1) of the filter to the closed position (A).
3. Using a filter wrench, loosen the metal ring of the filter and
remove the casing (2).
4. Clean the head of the filter holder and the inside of the
casing, install a new filter and fill the casing with fuel.
5. Lubricate the casing seal, install it on the filter holder and
tighten the metal ring until it touches the seal.
6. Give the metal ring a further 2/3 turn.
NOTICE
If the casing is tightened excessively, the seal may be
damaged and cause fuel leakages. Fuel leakages may also
be due to insufficient tightening. Therefore, it is advisable
to fix the casing by tightening the metal ring correctly.
WEAM014500