Yanmar 4JH4E - Inspection after Initial 50 Hours or One Month Operation

2. Inspection and adjustment
60
2.2.2 Inspection after initial 50 hours
or one month operation
Be sure to check the following points after initial 50
hours or one month operation, whichever comes
first.
(1) Drain the fuel tank
1) Put a pan under the drain cock to catch the
fuel.
2) Open the drain cock and drain off any water
or dirt collected.
3) When the water and dirt are drained off and
the fuel comes out, close the drain cock.
(2) Replace the engine lube oil and the lube
oil filter.
During the operation of an engine, the oil is
quickly contaminated due to the initial wear of
internal parts. The lube oil must therefore be
replaced early. It is easiest and most effective
to drain the engine lubricating oil after
operation while the engine is still warm.
Replace the lube oil filter at the same time.
Beware of oil splashes if extracting the lube oil
while it is hot.
No. Inspection item
(1) Drain the fuel tank.
(2) Replace the engine lube oil and the lube oil filter.
(3)
Replace the marine gear lube oil and the lube oil
filter.
(4) Adjust the tension of the alternator driving belt.
(5) Adjust the intake/exhaust valve clearance.
(6) Check/adjust the remote control operation.
(7) Adjust the propeller shaft alignment.
Sediment trap Drain coc
k
To engine
Fuel pipe
To engine
010156-00E