MAINTENANCE SCHEDULE & CHECKLISTS
4012/16 Diesel, February 1997 5
0
EVERY 250 HOURS OR EVERY 6 MONTHS
CHANGING ENGINE OIL AND OIL FILTERS
(STANDARD HORIZONTAL TYPE)
With the engine stopped, place a suitable
container of at least 214 litres (47 gal)
beneath the drain plug (which is situated on
the bottom edge of the sump directly under
the dipstick). Remove the drain plug and
allow the oil to drain. This operation is best
carried out while the engine is still warm as
the thinner oil will drain more quickly. While
the oil is draining remove all three oil filters
per bank, two on the main header supplying
the bearings and one on the single header
supplying the piston jets, by turning them
anti-clockwise with a strap wrench Fig. 43).
NOTE: Removal of the oil filters will allow
an escape of oil from the filter headers. It is
therefore recommended that a suitable
container of at least 5 litres (1 gal) capacity is
positioned under each header prior to filter
removal as the oil filters are of the disposable
canister type they must be thrown away. Fill
the oil filters with clean engine oil prior to
fitting. Wipe clean the sealing faces and
threaded bosses of the header. Smear
engine oil on the captive rubber sealing ring
and carefully screw each new filter up to the
oil header using firm hand pressure only.
Having drained the engine oil, refit the drain
plug and fill the engine with the appropriate
grade of new oil (see pages 19 & 2 0).
E
nsure that the switch on the control panel
and fuel stop lever on the engine are both in
their respective 'stop' positions, and that the
air shut-off valves have been manually set to
the 'run' position (see
Fig. 2). Then motor
t
he engine over on the starter until a
pressure of approximately 40 kPa (5lb/in2) is
indicated on the pressure gauge, thus
ensuring that the oil filters are full and the
turbocharger bearings are primed (see page
23
). Check the dipstick and add more oil if
n
ecessary.
CHANGING THE OPTIONAL CHANGE-
OVER LUBRICATING OIL FILTERS
These special duplex filters are normally
intended for use on long running engines, or
where a servicing requirement may occur
when it is impossible to stop the engine to
change the filters. For this reason they are
fitted with a three way change over valve in
the head, which enables the elements to be
changed, one at a time whilst the engine
continues to run. They are normally mounted
on the engine, but they may also be remotely
mounted and connected to the engine by
means of flexible pipes.
NOTE: If the flexible connections to the filter
are removed for any reason, it is essential
that they are reconnected correctly to avoid
unfiltered oil getting into the engine. See Fig.
4
4. Failure to change filters when due can
also lead to trouble from unfiltered oil.
Always fill a replacement filter with clean
engine oil before fitting.
WARNING
DISCONNECT
BATTERIES OR ANY
OTHER MEANS OF STARTING. WEAR
PROTECTIVE GLOVES.
Fig. 43
WARNING
IT IS ESSENTIAL TO
PRIME THE SYSTEM
AFTER AN OIL AND FILTER CHANGE TO
AVOID OIL STARVATION PROBLEMS,
WITH AUTOMATICALLY STARTING
GENERATOR SETS, WHICH TAKE FULL
LOAD IMMEDIATELY AFTER STARTING.
