In this post, we are going to
learn more instructions about Shangchai diesel generator maintenance like checking drive belt,
cooling system, adding grease, belt tension and changing engine oil and oil
filter.
5.3.8
Checking drive belt
Perform
visual check on the drive belt everyday for any intersecting cracks. Transverse
cracks along the width direction of the belt are acceptable, while longitudinal
cracks (along the length direction) that intersect with transverse cracks are
not allowed. If any wear or abrasion occurs, replace it.
5.3.9
Checking cooling fan
Perform
visual check on the cooling fan for crack, loose rivet or blade bent or any
other defect. The fan should be installed reliably. Tighten the fastening bolts
or replace the damaged fan if necessary.
Warning:
Damaged fan blade can cause serious personal injuW. Do not pull or pry the fan,
and do not rotate the engine with the fan.
5.3.10
Checking intake system
Check the
intake hoses for any crack, as well as perforation, and clamps for looseness.
Replace the hose(s) if any fault is found, and tighten clamp screw(s) if
looseness is found to ensure the intake system free from leakage.
5.3.11
Adding grease
Add proper
amount of sodium based lubricating grease in the small hole.
5.3.12
Checking belt tension
Apply a
force of about 98 N on the middle point of the belt span between the two
pulleys with finger by pressing and pulling, and check the position change of that
point. The change should be within 8-12 mm. If it is out of the range, make
adjustment.
(1) Unscrew
the tensioner nut and screw or unscrew the adjusting bolt to adjust belt
tension.
(2) Tighten
the tensioner nut t0 122-152 N*m.
5.3.13
Changing engine 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.
(1) Don't
stop the engine until the temperature of the coolant reaches 60℃, then remove the oil drain plug on the oil
pan, scrap the washer and drain the lubricating 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
drain plug with sealant Tonsan 1567F and tighten it t0 60 -70 N*m.
(3) Clean
the outside surface of the oil filter. Remove the oil filter with tool and
scrap it. There are two oil filters (over the oil cooler on each engine side)
and both two should be replaced at the same time.
(4) Clean
the seal surface of the filter head, and there should be no old O-ring left.
(5) Do not
fill the new filters with clean oil. Only apply a light film of Vaseline or
clean lubricating oil to the O-rings on the new filters to form a lubricating
film before installation.
(6) Turn the
filter by hand until the O-ring contacts the sealed surface of the filter head,
and further tighten it t0 45 t 5 N*m or 3/4 to one of a turn with tool.
(7) Open the
filler cap (near the lower part of the cylinder block), and fill the engine
with clean lubricating oil until the oil level is near the high level mark in
the oil dipstick. The lubricating system capacity is about 65 L and oil pan
capacity about 42 L.
(8) Start
the engine and keep it running at idle, and then check the oil filter and drain
plug for oil leak.
(9) Check
the oil level at idle or low speed. If required, add engine oil until it is
near the dynamic high level mark (the mark 2) in the oil dipstick.
(10) Install
the filler cap and tighten it until you feel suitable.
5.3.14
Changing fuel filter (second stage)
(1) Clean
the outside surfaces of the fuel filters (two filters). Remove the filters with
tool and scrap them.
(2) Clean
the filter heads and its seal surfaces. There should be no old O-ring left.
Note: There
is two fuel filter, change them at the same time.
(2) 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 lubricating oil on the O-ring on the new filter to form
a lubricating film.
Caution: Do
not add fuel from the central hole of the filter.
{4) Screw
the filter by hand until the O-ring contacts the seal surface of the filter
head, and further tighten it to 45± 5 N?*m or 3/4 to one of a tum with tool.
5.3.15
Replacing fuel filter (first stage)
The first
stage fuel filter is also spin-on type. Refer to "Changing fuel filter
(second stage)" for replacement procedure
Refer to the
instruction on the filter for the removal directions of the filter and water
container.
5.3.16
Priming fuel system
If the
engine has not been used for a long time or first and second stage fuel filters
are changed, air will enter the fuel system. It is required to prime the fuel
system as per following steps:
(1) Loosen
the air breezing screw (straight line head) on the top of the priming pump.
(2) Press
the priming pump to prime until there is no bubble visible in the fuel that
outflows from the plug.
(3 Tighten
the plug to 10 N*m.
Caution:
Priming the fuel system is required if air enters the fuel pipeline due to
untimely fuel supplement or there is air in the fuel system due to other
reasons.
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