I. Changing
Lubricating Oil And Oil Filter
Warning: Be
careful when changing lubricating oil and oil filter because skin contact with
the hot oil or hot engine surface can cause scald.
how to
change lubricating oil and oil filter
(1) Don't
stop the engine until the temperature of the coolant reaches 60℃, then remove the oil drain plug. scrap the
washer and drain the oil.
Caution: Do
not drain lube oil when the engine is in cold state at which foreign particles
has deposited and attached to the bottom of the oil pan, and will not drain
with the oil. When the lube oil is warm, foreign particles suspend in it and
can easily drain with it.
(2) Clean
the installation surface of the oil drain plug on the oil pan. Install the oil
drain plug with a new washer and tighten it to 200±20 N-m.
(3) Clean
the outside surface of the oil filter. Remove the oil filter with tool and
scrap it. There are three oil filters on the engine and all three filters
should be replaced at the same time.
(4) Clean
the filter head and its seal surface. There should be no old O-ring left.
(5) Before
installing a new oil filter, fill it with clean oil from the 8 peripheral
holes. The oil level should be 3 -15 mm below the threaded hole. Apply a light
film of Vaseline or dean lubricating oil to the O-ring on the new filter to
form a lubricating film,
Caution: Do
not add oil from the central! hole of the filter.
(6) Turn the
filter by hand until the O-ring contacts the sealed surface of the filter head,
and further tighten it to 45 ±5 N-m or 3/4 turn to one turn with tool.
(7) Open the
filler cap, and fill the engine with clean engine oil until the oil level is
near the upper mark (high level) in the oil dipstick. The capacity of the oil
pan is 75 L.
(8) Start
the engine and keep it running at idle, and then check the oil filter and drain
plug for oil leak.
(9) Shut off
the engine, wait for about 15 minutes to provide enough time for the oil to
flow back to the oil pan, and check the level. If required, add engine oil
until it is near the upper mark (FULL) in the oil dipstick.
(10) Install
the filler cap and tighten it until you feel suitable.
II. Changing
fuel filter
(1) Be sure
to shut the engine down.
Note: Do not
replace the fuel filter cartridge when the diesel engine running.
(2) Clean
the outside surface of the oil fitter on the left and remove the all filter
with tool and scrap it.
(3) Clean
the filter head and its seal face of, and there should be no old O ring left.
(4) Before
installing a new fuel filter, fill it with clean fuel from the 8 peripheral
holes. The fuel level should be 3-15 mm below the threaded hole. Apply a light
film of Vaseline or clean engine oil to the O-ring on the new filter to from a
lubricating film.
Caution: Do
not add fuel from the central hole of the filter.
(5) Turn the
filter with hand until the O-ring contacts the sealed surface of the filter head,
and further tighten it to 45 ±5 N*m or 3/4 turn to one turn with tool.
III. Priming
fuel system
If the
engine has not been used for a long time or fuel filter is changed, air will
enter the fuel system. It is required to prime the fuel system as per following
steps:
(1) Loosen
the fuel outlet pipe screw on the fuel filter or the fuel return pipe screw on
the fuel pump.
(2) Prime
the priming pump until there is no bubble visible in the fuel that outflows
from the screw.
(3) Tighten
the screw.
Caution:
Priming the fuel system is necessary if air enters the fuel pipeline due to
untimely fuel supplement or there is air in the fuel system due to other
reasons.
IV. Water
separator
The fuel
filter have a function of water and fuel separation. The water drain interval
depends on the quality of the fuel used. The better quality a fuel is, the
longer period of water drain is. Performance of water drain must be done after
the engine has been stopped because the pressure at the drain is quite high.
Loosen the drain valves and drain the water and sediment in the filters until
clean fuel overflows and then tighten the valves with hand to a proper degree.
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