PERIODIC MAINTENANCE
PROCEDURES
After Initial 50 Hours of
Operation
Perform the following procedures after the
first 50 hours of operation.
• Draining and Replacing Lubricating Oil
• Inspecting and Replacing the Clutch
Shifter
Draining and Replacing Lubricating
Oil - SD20
When the vessel is out of the water, drain the
oil by removing the lower gear case drain
plug, and the upper gear case oil dipstick.
CAUTION! Let the drive unit cool at least
5 minutes after operation before
removing the oil drain plug. Hot oil could
spurt out forcefully if the drain plug is
removed from the drive unit
immediately after operation.
SD20
(1)
(2)
(3)
(4)
0005450
Figure 2
1 – Dipstick
2 – Upper Gear Case
3 – Lower Gear Case
4 – Lubricating Oil Drain Plug
Inspecting and Replacing the Clutch
Shifter
See your authorized Yanmar dealer or
distributor for procedure.
PERIODIC MAINTENANCE
SD Operation Manual
39
© 2009 Yanmar Marine International