MAINTENANCE SCHEDULE & CHECKLISTS
53 4
012/16 Diesel, February 1997
EVERY 250 HOURS OR EVERY 6 MONTHS
CHANGING FUEL FILTER ELEMENTS
NOTE: Ensure complete cleanliness is
adhered to.
HORIZONTAL FUEL FILTER (EARLY
ENGINES)
First turn off the fuel on installations having an
overhead supply, drain the sediment trap or
pre-fuel filter (if fitted) before filter removal.
Remove the two fuel filters (one filter on each
bank) located at the opposite end of the
engine to the flywheel, by turning them anti-
clockwise with a strap wrench Fig. 46.
NOTE: Removal of the filters will allow an
escape of fuel from the filter housings and
pipes, it is therefore recommended that a
suitable container of at least 5 litres (1 gal)
capacity is positioned under each housing
prior to filter removal.
As the fuel filters are of the non-serviceable
canister type they must be thrown away.
Wipe clean the sealing faces and threaded
bosses of the housings. Smear clean engine
oil on the captive rubber sealing ring and
carefully screw the new canister up to the
housing using firm hand pressure only.
Turn on the fuel supply (if applicable) and
vent the fuel system (refer to pages 25-26).
t
he filters for leaks with the engine running.
Key
(Fig. 46)
1 Oil filters
FUEL FILTER AND WATER SEPARATOR
(FITTED TO 4012 ENGINES ONLY)
First turn off the fuel supply, drain the
sediment trap or pre-fuel filter (if fitted)
before filter renewal. Remove the fuel filter
canister, which is located on the side of the
gearcase, by unscrewing from the filter
header with a strap wrench (Fig. 47).
STRAINER (FITTED TO 4016 ENGINES
ONLY)
The screen inside the strainer body should
be removed for cleaning (using a suitable
cleaning agent) at the same time that the
filter elements are replaced. To remove the
screen, unscrew the cap nut under the body
and withdraw it, catching any spillage of fuel
in a 5 litre (1 gal) container.
WARNING
DISCONNECT
BATTERIES OR
OTHER MEANS OF STARTING. ALWAYS
WEAR PROTECTIVE GLOVES
Fig. 46
1
Fig. 47
