PERIODIC MAINTENANCE Removing Oil By Draining Refer to Preparing The Sail-Drive on page 45 . Replacing Oil Refer to Filling With Lubricating Oil - SD20, SD50 and SD50-4T on page 19 . Oil draining is possible when the vessel is out of the water but will take a greater amount of time. Using MerCruiser ® Pump or simple market pump Refer to Preparing The Sail-Drive on page 45 . 1. After approximately 0.6 L (0.6 qt) has been drained, remove the oil changing plug. If you remove the plug before this, oil may spill out because maximum oil level is higher than the plug. (1) (2) (1) 0005458 Figure 11 1 Thread M10x1.5 2 Oil Changing Plug Fastest way:
Blowing out by using Air pressure Refer to Preparing the Sail-Drive on page 42 , then to Fastest Way: Blowing Out by using Air Pressure on page 42 . Be aware that oil is divided into two channels connected by the lower gear and lower drain port. (2) (3) Figure 12 1 Plug 2 O-Ring 3 Adapter Joint 0005459 1. Use a MerCruiser ® pump with like the one shown above (Figure 12) , or use a similar pump available locally. 2. Attach the pump to a new bottle of Quicksilver ® High Performance Gear Lube from MerCruiser ® . 3. Remove the oil changing plug from below the shift lever. 4. Connect the hose with a hose clip to the adapter joint at the drain position. 5.
Take out the plug from the upper case cover. 46 SD Operation Manual © 2009 Yanmar Marine International