Returning The Engine To Service - Yanmar 3JH5E Operation Manual

LONG-TERM STORAGE
NOTICE
If seawater is left inside, it may freeze and
damage parts of the cooling system (heat
exchanger, seawater pump, etc.) when
ambient temperature is below 32°F (0°C).
1. Open the seawater drain cock on the
clutch cooler (if equipped). Allow to
drain. Open the seawater drain cock on
the intercooler (4JH4-HTE1, 4JH4-HTE
only) and drain. If no water drains, use
a stiff brush to remove any debris.
2. Remove four bolts attaching the side
cover of the seawater pump. Remove
the cover and drain the seawater.
3. Install cover and tighten bolts.
4. Close all the drain cocks.
96
RETURNING THE ENGINE
TO SERVICE
1. Replace the oil and the oil filter before
running the engine.
2. Supply fuel if the fuel in the fuel tank
was removed, and prime the fuel
system.
3. Confirm that there is engine coolant in
the engine.
4. Operate the engine at idle speed for 1
minute.
5. Check fluid levels and check engine for
leaks.
JH Series Operation Manual