Yanmar 4LHA-HTP Operation Manual page 45

•Draining the water from the cooiing fresh water system
If antifreeze has not been added to the fresh cooling water, be sure to drain the water from the
Jresh water system.
©Open the drain cock at the side of the cylinder block, and drain off the water inside.
©Open the fresh water cooler cock and drain off the water inside.
©Open the drain cock on the fresh water pipe of the front of engine (under the cooling fresh
water pump)
©Close the drain cocks after draining the water.
Position of fresh water cocks
Fresh water cooler
(3) Cleaning, Draining Fuel Oil, Greasing
• Clean the outside of the engine wiping off any dust or oil.
• To prevent condensation inside the fuel tank, either drain off the fuel or fill the tank.
• Grease the exposed area and joints of the remote control cable and the bearings of the
remote control handle.
• Cover the intake silencer, exhaust pipe, etc. with vinyl sheets and seal them to prevent
moisture from entering.
Drain bilge in the hull bottom completely.
1
• Water may leak into the boat when it is moored, and whenever possible it should be landed.
• Waterproof the engine room to prevent rain and seawater from entering.
(5) Maintaining the Battery Charge
• Be sure to turn off the battery switch.
During long-term storage, charge the battery once a month to compensate for the battery's
self-discharge.
4.9.2 Checking the Engine for Reuse After a Long Storage Period
When using the engine after a long period of storage, prepare for operation in the same manner as
}a new engine.
O Fresh water
Fresh
water cooler
For 4LHA-HTP/-HTZP
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—See [3. Before Opration]
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Lube oil filter