Periodic Inspection Items; Inspection After Initial 50Hrs. Operation - Yanmar 4JH3-TE Operation Manual

5.2 Periodic Inspection Items

5.2.1 Inspection After Initial 50Hrs. Operation

(1) Replacing the Engine Lube Oil and Lube Oil Filters (1st time)
Precautions for Removing Hot Oil to Prevent Bums
If extracting oil from the engine while it is still hot, do not let the oil splash on
you.
During initial operation of the engine, the oil is quickly contaminated due to the initial wear of
internal parts. The lube oil must therefore be replaced early. Replace the lube oil filter at the
same time.
1. Drain off the lube oil.
It is easier and more effective to drain the engine lube
oil while the engine is still warm after operation.
1) After removing the oil dipstick, attach the hose of
the oil drain pump (optional) to the dipstick guide.
2) Drain off the oil with the drain pump.
2. Replace the lube oil filter.
1) Turn the lube oil filter to the left with the filter
wrench and remove.
2) Clean the filter installation face.
3) Apply engine oil to the installation face and put on
the new filter, turning it to the right by hand. Next,
tighten an additional 3/4 of a turn with the filter
wrench.
[Tightening torque:19.6~23.5N•m(2.0~2.4kg•m)]
Part Number:
Lube oil filter 129150-35151
3. Fill with new lube oil.
1) Fill with the specified amount of oil.
2) Run the engine for approximately 5 minutes and
check to see if there is any oil leakage.
3) Approximately 10 minutes after stopping, check the
oil level again with the oil dipstick and add more oil
if necessary.
5. MAINTENANCE & INSPECTION
Oil drain pump
Cartridge element
Filler port cap
→See 3.3
Tighten
Loosen
Dipstick
guide
Filler port
37
Dipstick
Filter wrench
Dipstick
Upper
limit
Lower
limit