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-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.
92
RETURNING THE ENGINE
TO SERVICE
1. Replace the oil and the oil filter before
2. Supply fuel if the fuel in the fuel tank was
3. Confirm that there is engine coolant in
4. Operate the engine at idle speed for 1
5. Check fluid levels and check engine for
© 2009 Yanmar Marine International
running the engine.
removed, and prime the fuel system.
the engine.
minute.
leaks.
JH Series Operation Manual