OPERATING INSTRUCTIONS

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PERATING INSTRUCTIONS FOR MAIN PROPULSION ENGINES

TM-55-1905-219-14-2 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS

TM 55-1905-219-14-2

OPERATING INSTRUCTIONS

SHIP SERVICE GENERATOR AND CONTROL SWITCHBOARD

STEP 1. Before starting engines, Generator Circuit Breakers must be open.

STEP 2. Place INTEGRAL (unit parallel) SWITCH in the ON (unit) position.

STEP 3. Place the AUTO-MANUAL SWITCH in the AUTO position.

STEP 4. Check engines for readiness for operation; oil, water, fuel, etc.

STEP 5. Start engines and adjust frequency to 60 Hertz (with governor switch) and voltage to 450 volts (with voltage

adjust rheostat).

STEP 6. Close Generator Circuit Breaker.

TO PARALLEL SHIP'S SERVICE GENERATORS

STEP 1. Start second generator according to STEPS 1, 3, 4 and 5 above.

STEP 2. Place the INTEGRAL (unit parallel) SWITCHES of both generators in the OFF (parallel) position.

STEP 3. Place the SYNCHRONIZING SWITCH in the ON position and adjust the speed of the incoming generator

slightly faster than the machine on the line (synchroscope should have slow clockwise rotation).

STEP 4. When the synchroscope pointer passes through the 12 o'clock position, close the incoming generator circuit

breaker.

STEP 5. Divide load between generators by adjusting generator governor control and adjust voltage to divide current.

GENERATOR MANUAL OPERATION

STEP 1. Place the AUTO-MANUAL SWITCH in the MANUAL POSITION.

STEP 2. Start engine.

STEP 3. Adjust voltage for 450 volts using the MANUAL VOLTAGE CONTROL RHEOSTAT.

GENERATOR SHUTDOWN

STEP 1. If generators are operating in parallel, transfer the entire load to one generator and open the no-load generator

circuit breaker.

STEP 2. Reduce generator load as much as possible by opening feeder circuit breakers.

STEP 3. Open the generator circuit breaker.

STEP 4. Shut down the generator engines (in engine room).

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