3-77 INSPECTION AND MAINTENANCE
(4) Fuel filter (for DDC engine)
1) Every 6 month or every 15,000km change to-
gether first and secondary filter.
Primary
fuel
filter
secondary
fuel filter
MTC0181
MTC0182
2) How to replace the fuel filters
1. With the engine shut down, place a suitable
container under the filter.
2. Using a suitable band type filter wrench, re-
move the primary and secondary fuel filters.
3. Fill new replacement filters with clean fuel
oil and coat the gaskets lightly with clean
fuel oil.
4. Thread the new filters onto the adaptors until
they make full contact with the gasket and
no side movement is evident. Then rotate
an additional one-half turn by hand.
Caution
Overtingtening may crack or distort the adaptors.
5. Turn the handle on the shutoff valve to the
open position
6. Start the engine and check for leaks.
(5) DDC engine fuel heater
Paraffin generated in fuel system by decrease
of temperature in cold winter, blocks supply of
fuel, results in poor engine starting. With this
reason, heating the fuel for the supperession
of paraffin generation, activate circulation of
fuel flow and enables engine to start well.
MDD0182
https://www.truck-manuals.net/
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