Yanmar 3YM20

Autumn

• Drain the water separatorevery 50 hours or every 1 months
• Check the battery electrolyte levelevery 50 hours or every 1 months
• Change the saildrive oilevery 100 hours or every 6 months
• Change the engine oilevery 150 hours or annually
• Change the gearbox oilevery 150 hours or annually
• Winterise the raw water systemLet the engine draw in antifreeze until it comes out of the exhaust, or drain the system as described in the owner's manual.
• Check anodes, belts and hoses
• Fully charge the batteries and disconnect the negative terminal