
LONG-TERM STORAGE
74 6LPA Series Operation Manual
DRAIN SEAWATER
COOLING SYSTEM
Figure 1
Figure 1
Figure 2
Figure 2
Figure 3
Figure 3
Figure 4
Figure 4
1 – Seawater Drain Cock
2 – Fresh Water Drain Cock
3 – Fresh Water Drain Cock
4 – Seawater Pump Cover
5 – Seawater Drain Cock
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. Close the seacock.
2. Open the seawater drain cocks and
drain off the seawater.
3. Remove four bolts attaching the side
cover of the seawater pump. Remove
the cover and drain the seawater.
4. Install cover and tighten bolts.
5. Close all the drain cocks.
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