Table 2. Port Shaft Alley (refer to figure 2)

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PORT SHAFT ALLEY

TM-55-1925-273-10-1 Inland and Coastal Large TUG (LT) NSN 1925-01-509-7013 (EIC XAG) Manual

BOW THRUSTER COMPARTMENT

TM 55-1925-273-10-1

0047 00

Table 2. Port Shaft Alley (refer to figure 2) (continued)

Key

Control/Indicator

Function

GS-106, DR ST TUBE SEAL

When OPEN, this valve drains the raw water from the shaft seal to the bilge.

GS-42, COV-ST TUBE SEAL P

This valve secures the flow of raw water to the shaft seal.

Shaft Seal

The shaft seal prevents excess raw water leakage around the propeller shaft

and into the vessel.

Cutoff Valve, Shaft Seal Vent

When OPEN, this valve vents the shaft seal to prevent air pockets from

forming in the flush water area of the shaft seal.

Shaft Seal Check Valve

The shaft seal check valve provides over inflation protection for the shaft seal.

CA-66, SVCE AIR TO

This valve secures the flow of compressed air pressure to the inflatable

STERN TUBE

shaft seal.

END OF WORK PACKAGE

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