1. LINE UP OF PIPING SYSTEMS FOR SPLIT-PLANT OPERATION
1. Main Steam.-Valves MS-4 and MS-15 closed. Have warming up bypass around MS-4 open.
2. Main Feed.-Valves MF-3, MF-24, MF-31, and MF-42 closed.
3. Auxiliary Steam.-Both valves at after bulkhead No. 1 engineroom closed, others according to boiler line-up.
4. Auxiliary Exhaust.-Close bulkhead cut-out valve at after bulkhead, lower level No. 1 engineroom.
5. Condensate System.-Crossconnection valves from condensate discharge in each engineroom closed.
6. Feed Booster System.-Hot suction to each emergency feed pump lined-up to pump manifold crossconnection between the two enginerooms closed by valve at No. 2 emergency feed pump and valve at after bulkhead No. 1 engineroom.
7. High-Pressure Drains .-Crossconnection valve at after bulkhead of No. 1 engineroom closed.
8. Low-Pressure Drains.-Crossconnection valve at after bulkhead of No. 1 engineroom closed.
9. Contaminated Drains-Crossconnection valve at after bulkhead of No. 1 engineroom closed.
10. Lubricating Oil System.-While there is no crossconnection between time lubricating oil service systems, the crossconnection valve between the two purifying systems must be locked closed.
11. Fuel Oil System.-Forward service pumps lined up to forward service tanks, and after service pumps lined up to after service tanks: fuel oil transfer crossconnection valve closed unless actually transferring oil.
For Normal Auxiliary Watch Line-Up, the Following Should be Cross connected
1. Auxiliary Steam System.
2. Auxiliary Exhaust System.
3. High Pressure Drains.
4. Low Pressure Drains.
5. Contaminated Drains.
No other systems should be crossconnected on auxiliary watch unless the line-up actually requires it.
2. PROCEDURE FOR LIGHTING OFF A COLD BOILER, AND CUTTING IN AN ADDITIONAL BOILER ON MAIN STEAM LINE
See Section VI.
Station Breakdown for Lighting-Off Boiler
Watertender (In General Charge)
Start emergency feed pump on cold suction.
Check line-up of fuel oil system.
Start fuel oil service pump.
Bring up air pressure arid blow through furnace.
Close drum and superheater vents as they start to blow steam.
When pressure reaches 50 p.s.i. notify engineroom and cut in superheater drains on H. P. drain line.
Cut in on auxiliary steam when ordered by engineroom.
Shift emergency feed pump to hot suction when ordered by engineroom.
Secure emergency feed when main feed pump is put on line.
Cut-in on main steam when so ordered.
DO NOT BRING UP SUPERHEAT UNTIL SO ORDERED.
Feed Check Man
Jack open the Bailey Regulator.
Run down boiler to 1" in 10" glass.
Raise level 1/2".
Line-up fuel oil discharge through heater and cut-in steam as ordered.
Warm up blowers.
When pressure reaches 500 p.s.i. lift all safety valves by easing gear.
Keep a close watch on the water level as the pressure rises. Blow down if too high.
Assist watertender cutting-in on auxiliary steam.
Assist watertender cutting-in on main steam.
Assist in running down boiler.
Assist watertender to line-up and start emergency feed pump.
Line-up fuel oil suction and discharge with circulating valve open.
Assist watertender to start fuel oil service pump.
Cut-in steam to fuel oil heater.
Open drum and superheater vents, and super-heater open drains.
Light-off one small burner when fuel oil temperature reads 135 degrees F. Close recirculating valve. Regulate steam to heater, to maintain fuel oil (Navy Special) temperature between 130 degrees F. and 140 degrees F. as ordered.
Light-off another burner as pressure rises and furnace heats up.
3. PROCEDURE FOR WARMING UP MAIN PLANT, SPLIT-PLANT OPERATION
Check oil level and temperature in lubricating oil sump tank. If temperature is below 90 degrees F., admit steam to cooler and recirculate to bring it up. Check and clean strainers.
Run down water from deaerating tank to main condenser, 1/4 to 1/2 glass in hot well.
Line up main condensate system to deaerating tank. Open recirculating valve from deaerating tank. and bypass thermally operated valve.
Warm up and put main condensate pump on line.
Shift high-pressure drains to deaerating tank, and divide high-pressure drain system.
Cut in auxiliary exhaust steam to deaerating tank.
Start and warm up main feed booster pump, with 2 inches recirculating valve open to deaerating tank. Shut down auxiliary booster pump if running.
Line up lubricating oil system. Warm up and put lubricating oil pump on line. Check all bearings for circulation. DO NOT CIRCULATE LUBRICATING OIL UNLESS TEMPERATURE IS AT LEAST 90 degrees F.
Engage jacking gear and start jacking over main engines. PUT SIGN ON MAIN GAGE BOARD.
Start gland exhauster and admit steam to gland sealing steam system.
Fill loop seal through filling line.
Start second-stage air ejector jet.
Start main circulator. This is the latest time the main circulator may be started. It may be started at any time previous to this.
When inter-condenser vacuum reaches 16 inches it is permissible to start the first-stage jet.
However, on this installation the second-stage jet will draw a vacuum on the main condenser of about 26.5 inches, which is sufficient until the engines are turned over with steam. Therefore it is better to wait until then.
When vacuum reaches 25 inches, shift the Swartwout unloading valve to the main condenser.
Cut in low-pressure drain tank to the main condenser and divide the low-pressure drain system. Do the same for the contaminated drain system.
When the boilers of both plants are on auxiliary line, divide auxiliary steam and auxiliary exhaust.
Warm up and idle main feed pump. Close 2-inch recirculating valve from booster pump and open three-fourths-inch valve.
Notify fireroom and then cut in main feed pump on the line.
Call for main steam from fireroom.
When steam is up to the engineroom. cut out valves, stop engines, and disengage jacking gear. PUT SIGN ON MAIN GAGE BOARD.
Warm up lines and admit steam up to the cruising and h. p. throttles.
Line up turbines on cruising combination.
Get permission from officer-of-the-deck and then spin turbines ahead and astern on cruising and astern turbines to warm up.
If ship's orders require, it may be necessary to shift to the high-pressure combination before reporting ready.
On completion of maneuvering, shift generator exhaust to main condenser.
On completion of maneuvering, order fireroom to raise the superheat.
It is not desirable to shift the turbo-generator exhaust to the main condenser until after the completion of maneuvering.
Station Break-Down for Warming Up Main Plant, Split-Plant Operation
Chief Machinist's Mate
In supervisory charge over all operations in engineroom.
Order division of auxiliary steam and auxiliary exhaust systems when fireroom is ready.
Order main feed pump on line and notify fireroom.
Call for main steam from fireroom.
Admit steam to turbine throttles.
Check all systems to see that they are split.
Caution-C.M.M. At. or Junior O.O.W. should always wear the IJV telephone headset when testing
main engines, standing by awaiting bells, and while maneuvering.
Run water down from deaerating tank to main condenser.
Line up main condensate systems upper level, with recirculating system bypassed around thermal valve.
Shift high-pressure drains to deaerating feed tank.
Check lubricating oil system and check all bearings for circulation after pump is started. Check low-pressure alarm and automatic pump controls.
Engage jacking gear and commence jacking over.
Admit steam to gland sealing steam system.
Fill loop seal.
Start second-stage air ejector jet.
When inter-condenser vacuum reaches 16 inches, start first-stage air ejector jet.
Shift Swartwout unloading valve to main condenser and split auxiliary exhaust.
Split auxiliary steam system when both firerooms are on auxiliary.
Split L. P. drains and contaminated drains and cut in L. P. drain tank to main condenser.
Disengage jacking gear while main steam is being cut in.
Admit steam up to cruising, H. P. and astern throttles.
Line-up turbines on cruising combination.
Get permission from Officer-of-the-Deck and then spin turbines ahead and astern for 15 minutes or until warmed up.
Shift to high-pressure combination (if ordered and report ready.
Spin main engines ahead and astern once each five minutes while standing by, insuring that no way is put on the ship.
MM of the Watch (Upper Level)
Assist throttleman lining up condensate system.
Cut in auxiliary exhaust steam to deaerating tank when ordered.
Open main booster recirculating valve (2-inch) when so ordered.
Assist throttleman to start jacking gear.
Start gland exhauster when ordered.
Assist pump man (lower level) to start main circulator.
Assist throttleman to split auxiliary steam and exhaust systems.
Close booster recirculating valve when ordered.
Assist throttleman to disengage jacking gear.
Assist in admitting main steam to throttles and in shifting engine combinations.
Warm up ship's service turbo-generator when ordered.
Log Writer and Messenger
Assist throttleman where possible while maintaining his watch on operating machinery.
Log all pertinent entries and remarks.
Pump Man (Lower Level)
Check oil level in lubricating oil sump tank.
Admit steam to lubricating oil cooler if necessary.
Check water level in main condenser.
Line up main condensate system, lower level.
Put main condensate pump on line.
Start main booster pump and shut down auxiliary booster pump if running. Have 2-inch recirculating valve opened.
Line up lubricating oil system, check strainers.
Put lubricating oil pump on line when oil temperature is not less than 90 degrees F.
Open loop-seal filling line for a moment and then close.
Start main circulator.
Shift Swartwout unloading valve to main condenser when ordered.
Split L. P. and contaminated drains and shift L. P. drain tank to main condenser when ordered.
Warm up and idle main feed pump.
Put main feed pump on line when ordered.
Shift generator exhaust to main condenser when ordered.
Take make up feed when required.
Oiler (Lower Level)
Keep watch on all machinery in operation while pump man is occupied. Also assist pump man whenever necessary.
Clean lube oil strainers and assist in lining up system.
Assist pump man to shift Swartwout valve to main condenser.
4. NOTES ON SECURING MAIN PLANT
Do not secure deaerating tank too soon. While securing there are still a great number of high
pressure drains and these all going into one tank will cause it to overheat.
Under no circumstances allow the oil temperature to drop below 90 degrees F. until the turbines are stopped jacking and oil is to be cut off from the bearings. This will necessitate shutting off cooling water from the lubricating oil cooler very early.
Do not drop the vacuum on the main condenser
too rapidly. It should not be done in less than half an hour.
Do not stop jacking the main engines unless the oil temperature has dropped to at least 100 degrees F.
In order to reduce to a minimum the amount of condensation on the gears of the main reduction gear, it is highly desirable to jack the engines, and continue circulating oil, for two hours after killing vacuum on the main condenser.