Check the following gages:

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Observe air conditioning system for 5 minutes. Check for the following:

TM-55-1905-220-14-2 Landing Craft Unit LCU 1671-1679 (1905-01-009-1056) Manual

If the temperature in step (35) exceeds 240 (115.6 C), do the following:

TM 55-1905-220-14-2

2-112. AIR CONDITIONING SYSTEM START-UP (Cont).

(e)

Rotate the compressor suction stop shut-off valve (13)slowly clockwise until the proper

compressor suction pressure is reached.

If the compressor starts knocking, or the compressor suction gauge continues to fluctuate, STOP the

compressor immediately, and rotate the compressor suction stop shut-off valve (13) clockwise. Wait

five minutes and attempt a restart, with the compressor suction stop shut-off valve (13) partially open.

(29)

Check the following gages:

Compressor Suction Temperature (22) - 65 (17.8 ).

Compressor Suction (21) - 80 to 100 psi (551.6 to 689.5 kPa).

(30

Rotate the compressor suction stop shut-off valve (13) full counter-clockwise.

(31)

Check the lube oil pressure gage (23). The pressure should be 20 to 55 psi (137.9 to 379.2 kPa).

(32)

Check the sea water cooling pressure gage (24). The pressure should be 70 to 5 psi (482.6 to 517.1

kPa).

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