Yanmar 3JH4E Service Manual page 29

System
Check the leakage of water,
lube oil and fuel.
Cylinder
head,
Retighten all major nuts and bolts
etc.
Adjust intake/exhaust valve
clearance
Check/adjust the remote control
Remote
operation
control
system, etc.
Adjust the propeller shaft alignment
*1
For EPA requirements see also 1.5 in chapter 1.
*2
Whichever comes first
: User-maintenance
Item
starting)
: Parts replacement
*2 Initial *2 Every
Before
50hrs. or 50hrs. or
starting
one month one month
(After
13
2. Inspection and Adjustment
: Shop-inspection
*2 Every *2 Every
250 hrs. or 1000 hrs. or
one year 4 years