Cooling System Plugs Caterpillar

Problem:

Some of these engines have been shipped with the water trapped in the cooling system. This could be a source of potential engine damage if the water in the cooling system freezes.

Solution:

Beginning with 3126B HEUI Marine Engine (3GS00300) several plugs will be removed from the cooling system before the engine is shipped from the factory. These plugs will be shipped loose in a plastic bag that will be fastened to the left side of the engine. Please install the plugs in the proper locations. The illustrations show the locations where the plugs should be installed.

LEFT SIDE OF ENGINE

Cap (2) on Seawater Inlet Line.

NOTE: This cap and clamp should not be installed if the engine is being put into service.

LEFT SIDE OF ENGINE

3E-7428 Plug (3) in Seawater Pump

LEFT SIDE OF ENGINE

5B-9169 Plug (4) in forward end of Aftercooler.

NOTE: A 6L-2288 Zinc Rod is fastened to the 5B-9169 Plug.

LEFT SIDE OF ENGINE

5B-9169 Plug in rearward end of Aftercooler.

NOTE: A 6L-2288 Zinc Rod is fastened to the 5B-9169 Plug.

RIGHT SIDE OF ENGINE

9S-8002 Plug (6).

NOTE: 9S-8002 Plug (6).

RIGHT SIDE OF ENGINE

6L-2282 Plug (7) in Heat Exchanger. 5B-7890 Plug (8) in Gear Cooler Assembly.

NOTE: A 6L-2283 Zinc Rod is fastened to the 6L-2282 Plug.

COPYRIGHT 2001 CATERPILLAR ALL RIGHTS RESERVED