Yanmar 3TNV Series Service Manual page 41

2. Inspection and Adjustment
In early period of use, the engine oil gets dirty rapidly
because of the initial wear of internal parts. Replace
t he engine oil earlier.
Lube oil filter should also be replaced when the engine
oil is replaced.
The procedure of lube oil and lube oil filter
replacement is as follows.
(a) Drain engine oil
Prepare a waste oil container collecting waste oil.
Remove the oil filler cap to drain easily while
draining the lube oil.
Loosen the drain plug using a wrench (customer
procured) to drain the lube oil.
Securely tighten the drain plug after draining the
lube oil.
[NOTICE]
Use a socket wrench or a closed wrench when
removing or tightening a drain plug.
Don't use a spanner because it has the possibility
that the spanner will slip and it will get hurt.
(b) Replacing oil filter
Turn the lube oil filter counter-clockwise using a
filter wrench (customer procured) to remove it.
Clean the mounting face of the oil filter.
Moisten the new oil filter gasket with the engine oil
and install the new engine oil filter manually
turning it clockwise until it comes into contact with
the mounting surface, and tighten it further to 3/4
of a turn with the filter wrench.
Tightening torque: 20 24N m (2.0 2.4kgf m)
Model
3TNV82A 4TNV98(T)
4TNV106(T)
(c) Filling oil and inspection
Fill with new engine oil until it reaches the
specified level.
IMPORTANT:
Do not overfill the oil pan with engine oil.
Be sure to keep the specified level between upper
and lower limit on the dipstick.
Warm up the engine by running for 5 minutes
while checking any oil leakage
Stop the engine after warming up and leave it
stopping for about 10 minute to recheck the
engine oil level with dipstick and replenish the
engine oil. If any oil is spilled, wipe it away with a
clean cloth.
Applicable oil filter Part No.
129150-35151
119005-35100
26