Yanmar 1GM10, Shop Manual

Page: 67 / 240

OPERATION, LUBRICATION, MAINTENANCE AND TUNE-UP
6 1
Transmission Oil Level Check
screw it in. Pull out the dipstick and read the oil level on
the dipstick.
Check the transmission oil level on a weekly basis.
1. With the boat at rest in water and the engine off, un-
2. Add oil, if necessary, through the dipstick hole so the
screw the dipstick (Figure 39, typical). Wipe it with a
oil level reaches the full mark on the dipstick. Use the oil
clean rag or paper towel. Reinsert the dipstick, but do not
recommended in the preceding section.
Table MAINTENANCE SCHEDULE
Daily Check fuel level
Check engine oil level
Weekly Check battery
Check air filter
Check transmission oil level
Check drive belt tension
Check electrical wiring
Every 50 hours
Clean fuel filter
Every 100 hours
Change engine oil
Drain fuel tank
Every 250 hours
Replace air filter element
Replace fuel filter element
Change transmission oil
Every 300 hours Replace engine oil filter
Adjust engine valves
Every 500 hours Inspect thermostat
Every 1500 hours
Inspect seawater pump
Every 2000 hours Replace thermostat
Annually Replace freshwater (closed system) antifreeze
Table 2 ENGINE OIL VISCOSITY
Ambient Temperature Oil viscosity
Below 50" F 0" C)
F
C)
-
F
C)
Above F
1 OW, 20W or
20 or
30
or 40
50
Table 3 ENGINE OIL CRANKCASE CAPACITY
Model Oil capacity
1.4 qt. (1.3 L)
2.1 qt. (2.0 L)
2.8 qt. (2.6 L)
5.7 qt. (5.4 L)