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CFM56-3

ENGINE SHOP MANUAL

ENGINE ASSEMBLY - STORAGE 001 - PRESERVATION AND DEPRESERVATION OF THE ENGINEASSEMBLY

*** Description of change : Tasks have been changed for manual migrationinto the SNECMA INDIGO authoring system. This may include: Task andSubtask renumbering, Effect use modification, and/or Effectivities and Linksconsistency. For more information see the introduction of the manual.

TASK 72-00-00-500-001

1. General.

This procedure gives instructions for the preservation and depreservationof the assembled engine.

2. Tools, Equipment, and Materials.

NOTE: You can use equivalent alternatives for tools, equipment, andconsumable materials.

A. Tools and Equipment.

(1) Special Tools.

Tool No. Description

856A1084 Cart, Stator Actuator (actuatorcart)

856A1115 Cart, Nitrogen - Fuel ManifoldPressure Check (nitrogen cart)

856A2501 Wrench, Ratchet, Dual Purpose- VBV Manual Control (ratchetwrench)

856A2502 Adapter, Drain - Oil Tank (drainadapter)

(2) Standard Tools and Equipment.

(3) Locally Manufactured Tools. None.

B. Consumable Materials.

Code No. Description

CP2098 Dessicant Bags (With Humidity Indicator)

CP2160 Vapor Barrier Film (vapor barrier film)

CP2442 Engine Oil (engine oil)

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© CFM PROPRIETARY INFORMATION : Subject to the restrictions on the cover or first page

CFM56-3

ENGINE SHOP MANUAL

Code No. Description

CP5066 Fuel System Corrosion Preventive Oil

CP5067 Lubrication System Corrosion Preventive Oil

CP5070 Vaseline (vaseline)

CP5075 Corrosion Preventive Additive (corrosionpreventive additive)

C. Referenced Procedures.

ATA No. Description

72-00-00 EM 72-00-00-800-005 Spec Proc 005)

72-00-00 EM 72-00-00-760-002 Testing 002)

D. Expendable Parts. None.

3. Preservation.

Subtask 72-00-00-550-051

A. General.

(1) The preservation procedure shall be applied at completion ofengine operation, prior to an engine return to shop, and whenthe engine is not to be operated for an extended period of time.

(2) This instruction describes the procedures recommended as theminimum necessary to protect the CFM56 engine against liquid anddebris entering the engine, and corrosion caused by atmosphericconditions during periods of storage and inactivity.

(a) Procedures will vary depending upon the duration ofinactivity, type of preservation used, whether engine isoperable or inoperable, or whether engine has been splitinto modules.

(b) For the purpose of this procedure an operable engine isone in which the rotors can be rotated; an inoperableengine is one in which the rotors cannot be rotated.

(c) Preservation renewal procedures are also covered in thisinstruction.

(d) Represerve the engine if removal and reinstallation ofhardware system or equipment are performed.

(3) Engine preservation is a flexible program that should beimplemented in a manner best fitting the particular weather andstorage conditions involved.

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(4) The preservation program for spare and/or stored engines mustbe planned in advance to implement the preservation renewalrequirements, and must be monitored regularly to ensure that therequired action is implemented prior to the expiration of thepreservation period.

(5) The preservation procedure to be used will be selected basedupon the following schedule:

(a) Up to 30 days - operable and inoperable engines.

(b) 30 to 365 days - operable engine.

(c) 30 to 365 days - nonoperable engine.

(d) 30 to 365 days - operable, stand-installed engine.

NOTE: There is no restriction on the number of timesthe 30 to 365 days preservation procedures can berenewed as long as they are accomplished every 365days.

(6) It is recommended that the variable bleed valves (VBV) be pumpedclosed any time the engine is to be preserved and stored. Thiswill avoid the possibility of foreign objects entering the coreengine inlet through the VBV s. The doors can be pumped closed.Refer to Subtask 72-00-00-550-058 (paragraph 3.D.(3)).

B. Preservation for a Period of One to 30 Days - Operable and InoperableEngines.

(1) Seal front and back openings/exposed areas with (CP2160) VaporBarrier Film. It is recommended that (CP2098) Dessicant Bags(With Humidity Indicator) be placed on either side of theengine, but not in contact with the engine hardware.

(2) Seal all piping and strut openings with plastic film.

(3) Cap or cover all accessory openings.

(4) Cover each section of engine with a protective cover and securetightly in place.

C. Alternative procedure available. Preservation for a period of 30 to365 Days - Operable Engine.

WARNING: ENGINE OIL IS TOXIC. USE PERSONAL PROTECTIONEQUIPMENT. USE IN A WELL-VENTILATED AREA.

WARNING: CORROSION PREVENTIVE IS TOXIC AND FLAMMABLE.USE PERSONAL PROTECTION EQUIPMENT. USE IN AWELL-VENTILATED AREA.

CAUTION: DO NOT USE ANY SILICONE BASE OILS IN THE FUEL SYSTEM.

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(1) Service oil tank with a mixture of approved (CP2442) EngineOil and 7 percent (by volume) (CP5075) Corrosion PreventiveAdditive, or with a mixture of approved (CP2442) Engine Oil and5 percent (by volume) (CP5067) Lubrication System CorrosionPreventive Oil. A minimum of 20 quarts (19 liters) of oil isrequired for preservation motoring.

NOTE: If engine is to be motored without accessories at theaccessory gearbox customer accessory pads, make certainpad covers and gaskets are installed and cap the padcavity drains to prevent loss of engine oil.


(2) Connect a temporary line from fuel pump inlet to (CP5066) FuelSystem Corrosion Preventive Oil at 50 psig (345 kPa gage)maximum pressure. Refer to Figure 1201.

(3) Remove line from reference pressure port (PCR) on the mainengine control (MEC). Connect a temporary drain line from thereference pressure port and from the disconnected line to a 10US gal (38 l) container.

(4) Disconnect the compressor discharge pressure (CDP) at the bottomof the 6:00 o'clock piping bundle. Refer to Figure 1202.Connect this CDP line to the 856A1115, Cart, Nitrogen - FuelManifold Pressure Check, or to a clean air or nitrogen supplysource, capable of providing a regulated pressure of 0-150 psig(0-1034 kPa gage) as a false PS3 source.

(5) Motor engine as follows:

WARNING: DO NOT ATTEMPT MANUAL ROTATION OF FAN ROTORWITHOUT USE OF HEAVY PROTECTIVE GLOVES. USECARE TO AVOID PERSONAL INJURY. ASSURE SAFE,FIRM FOOTING.

(a) Make certain MEC fuel shutoff lever is CLOSED. Refer toFigure 1203.

(b) Pressurize oil supply to fuel pump inlet up to 50 psig(345 kPa gage) maximum.

(c) Motor engine at maximum motoring speed (minimum of 20percent N2) for 4 minutes.

(d) Stop motoring and allow to coast down.

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(e) Remove temporary drain line from the reference pressureport (PCR) of the MEC and the line and reinstall the lineto the MEC. Refer to Figure 1201.

(f) Increase false PS3 to 150 psig (1035 kPa gage).

(g) Motor engine to maximum motoring speed, move fuel shutofflever to OPEN for 5 seconds, place lever to CLOSED andcontinue motoring for 2 minutes.

(h) Stop motoring and allow to coast down.

NOTE: If fan rotor did not rotate during motoring,manually pull/turn through at least 2 completerevolutions.

(6) Remove temporary oil supply line from fuel pump inlet and coveror cap fuel inlet to pump.

(7) Remove nitrogen cart, or clean air or nitrogen pressurizedsource, and reconnect CDP line at 6:00 o'clock piping bundle.

(8) Seal engine inlet and exit openings with (CP2160) Vapor BarrierFilm.

(9) Seal all engine openings, particularly struts, piping, andaccessory openings with caps or plugs and plastic film.

(10) Place desiccant on either side of the engine, but not incontact with engine hardware.

NOTE: The desiccant should be replaced at regular intervalsbased upon atmospheric and weather conditions.Therefore, they should be placed so they will provideadequate protection to the engine and still be accessiblefor replacement while disturbing minimum amount of engineprotective covering.

(11) Cover entire engine with a waterproof protective cover andsecure tightly in place.

(12) Attach a tag to the powerplant to tell that the fuel system ispreserved per this procedure.

CAUTION: DO THIS PROCEDURE AT MINI IDLE ONLY.

CAUTION: DO NOT USE SILICONE BASE OILS IN THE FUEL SYSTEM. IF YOU USESILICONE BASE OILS, DAMAGE TO THE ENGINE CAN OCCUR.

C.A. Alternative procedure. Preservation for a Period of 30 to 365 Days- Operable Engines.

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NOTE: You must do this procedure in a test cell that can set thefuel inlet port from fuel to preservation oil without starvingthe engine and without backflowing oil into the facility fuelsystem. It must have the function to control the oil flowand pressure. If the engine is in a test cell with thesefunctions, you can preserve the engine with this alternativeprocedure. Do this procedure after final test but before theengine is shutdown and prepared for shipment or storage.

(1) Drain the oil tank.


(2) Do the servicing of the oil tank with a mixture of (CP2442)Engine Oil and 7 percent (by volume) of (CP5075) CorrosionPreventive Additive or with a mixture of (CP2442) Engine Oil and5 percent (by volume) of (CP5067) Lubrication System CorrosionPreventive Oil. A minimum of 20 quarts (19 liters) of oil isnecessary to motor the engine during preservation.

(3) When you motor the engine without the accessories installed,make sure that the items that follow are installed.

(a) Pad covers and gaskets on pads where accessories areusually installed.

(b) Caps on the pad cavity drains to prevent the loss ofengine oil.

(4) Start the engine and operate at mini idle for five minutes.Refer to 72-00-00-760-002 (72-00-00, Testing 002) and to minimumidle N2 limits, figure 1305 in 72-00-00-760-001 (72-00-00,Testing 001).

(5) While the engine is operating at mini idle:

(a) Adjust the pressure of preservation oil to 10-50 psi.

NOTE: You must do a leak check run if the pressure ismore than 70 psig.

(b) Set the fuel inlet port to preservation oil.

(c) Operate the engine at mini idle for 3 to 5 minutes, andmonitor the engine parameters to be sure that they remainin the Engine Shop Manual Testing Section limits.

NOTE: You must find the Mini/Idle run time for each testcell configuration, to meet flashpoint requirementsfor shipment. An oil to fuel ratio more than 65percent will be equal to a flash point more than60°C (140°F).

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(6) Shut down the engine with the preservation oil valve open.

(a) The VBV doors must be closed for sealing.

(b) Let the engine coast down.

(c) Release the residual pressure to the engine fuel inlet.

(7) Disconnect test cell to the engine connections (instrumentation,fuel, etc.). Refer to local test cell procedure.

(8) Put (CP2160) Vapor Barrier Film on the inlet and exhaustopenings and attach with tape.

(9) Install (CP2160) Vapor Barrier Film or caps or plugs on all openengine areas, such as struts, pipes, and accessory pads.

(10) Put a (CP2098) Dessicant Bags (With Humidity Indicator) on oneside of the engine. Do not permit the desiccant to touch theengine surfaces.

NOTE: Replace the desiccant at regular times based onatmospheric and weather conditions. Put the desiccantaround the engine so that it will give adequateprotection. Install it so that you will have to move aminimum amount of engine protective covers.

(11) Put a waterproof protective covering on the entire powerplantand attach tightly.

(12) Attach a tag to the powerplant to tell that the fuel system ispreserved per this procedure.

D. Preservation for a Period of 30 to 365 Days - Nonoperable Engine.Refer to Figure 1201,Figure 1202 andFigure 1203.

(1) Drain fuel system from the following locations and catch insuitable containers.

(a) Remove fuel filter inlet pressure port plug and allow fuelto drain.

(b) Disconnect fuel supply line and cap fuel pump inlet port.

(c) Place MEC power lever to FORWARD position and place fuelshutoff lever to OPEN.

(d) Remove fuel filter drain plug and allow fuel to drain.

(e) Remove fuel pump drain plug and allow fuel to drain.

(f) Remove fuel filter element and discard. Refer to TASK72-00-00-800-005 (72-00-00, Spec Proc 005).

NOTE: Filter element may remain in place when cover isremoved.

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(g) Reinstall fuel pump drain plug. Torque to 45-55 lb in.(5,1-6,2 N.m).

(2) Preserve fuel system as follows:


CAUTION: DO NOT USE ANY SILICONE BASE OILS IN THE FUEL SYSTEM.

(a) Connect oil pressurizing cart that has (CP5066) FuelSystem Corrosion Preventive Oil to boost dischargepressure (PBP) port on fuel pump. Torque connector to45-55 lb in. (5,1-6,2 N.m).

(b) Using cart, pump clean, filtered (10 micron) oil into fuelpump until fuel-free oil flows out of fuel filter inletpressure port and filter housing.

(c) Replace plug on fuel filter inlet pressure port. Torqueplug to 45-55 lb in. (5,1-6,2 N.m).

(d) Replace fuel filter element, bowl cover and drain plug.Torque drain plug to 45-55 lb in. (5,1-6,2 N.m). Referto TASK 72-00-00-800-005 (72-00-00, Spec Proc 005).

(e) Remove fuel pump discharge pressure port plug (PHP).

(f) Using cart, pump clean, filtered oil into fuel pump PBPport until fuel-free oil flows out of PHP port.

(g) Disconnect cart from PBP port and replace plug. Torqueplug to 45-55 lb in. (5,1-6,2 N.m).

(h) Connect cart to PHP port. Torque connector to 45-55 lbin. (5,1-6,2 N.m).

(i) Disconnect the following:

1 CIT sensor PB (MEC) line near 6:00 o'clock pipingbundle where flex line attaches to hard line. Referto Figure 1202.

2 Plug near fuel manifold drain on pressurizing (P'D)valve of MEC. Refer to Figure 1203.

(j) Pump oil into PHP port until oil flows out of each of theopenings listed in step (i) as a solid stream of oil; thentemporarily plug them to prevent oil loss.

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(k) Disconnect cart from PHP port and install plug to preventoil loss. Torque plug to 45-55 lb in. (5-6 N.m).

(l) Connect PB line to prevent oil loss.

(m) Install plug near fuel manifold drain on P'D valve of MEC.Torque to 135-150 lb in. (15-17 N.m).

(n) Remove fuel manifold drain plug and allow fuel to drain.


(o) Connect pressurizing cart to fuel manifold drain port andpump two quarts (1,9 l) of (CP5066) Fuel System CorrosionPreventive Oil into it.

(p) Disconnect pressurizing cart line from fuel manifold drainport and quickly plug port to prevent oil loss. Torque to180-200 lb in. (20-23 N.m).

(q) Make certain all fuel system ports are capped, all linesconnected, and not leaking.

Subtask 72-00-00-550-058

(3) Close the VBV doors. Use an external pressure source asfollows:

NOTE: The system can be moved manually. Use 856A2501, Wrench,- VBV Manual Control, to turn the exposed drive end ofthe VBV actuator at 2:30 o'clock position.


(a) Fill the 856A1084, Cart - Stator Actuator, with (CP5066)Fuel System Corrosion Preventive Oil.

CAUTION: ADAPTER O-RINGS MUST BE SERVICEABLE SO NO FOREIGNMATERIAL CAN ENTER THE SYSTEM DURING ATTACHMENT OFADAPTERS OR DURING OPERATION.

(b) Inspect the adapter O-rings to make sure they areserviceable.

(c) Remove the caps and install adapters in the open andclosed end T-connectors at the MEC. Attach the rod and

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head end hoses from the 856A1084, Cart - Stator Actuator,to the adapters.

CAUTION: DO NOT EXCEED 300 PSIG (2068 KPA GAGE) SUPPLYPRESSURE THROUGH VBV MOTOR.

(d) Actuate the VBV doors to the closed position. Apply andkeep 200-300 psig (1379-2068 kPa gage) pressure on theclose end tube.

NOTE: The VBV system should move smoothly without bindingor jumping. The pressure should stay at 100 psig(689 kPa gage) until the system stop position isreached. When the stop position is reached, therewill be a rapid increase in gage pressure.

(e) Look at the VBV doors to make sure they are closed.

(f) Disconnect the hoses from the closed and openT-connectors. Remove the adapters and install caps.

(g) Torque the caps to 280-300 lb in. (31,6-33,9 N.m).

(h) Cover the VBV bleed-grills with (CP2160) Vapor BarrierFilm.

Subtask 72-00-00-550-059

(4) Drain engine oil from the areas that follows:

(a) Oil tank. Use the 856A2502, Adapter, Drain - Oil Tank.Refer to Subtask 72-00-00-550-052 (paragraph 4.B.(1)) orSubtask 72-00-00-550-055 (paragraph 4.B.(1A)).

(b) Accessory gearbox (AGB).

(c) Transfer gearbox (TGB).

(d) Scavenge filter.

(e) Lube and scavenge pumps.

(f) Oil supply lines between lube and scavenge pumps and sumpsand gearboxes.

(g) Scavenge oil lines between lube and scavenge pumps andsumps and gearboxes.

NOTE: For oil supply and scavenge oil lines that arecapped and do not connect back to scavenge pump,remove caps and drain any liquid from the lines.

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(5) Preserve lube system as follows:


(a) Using a cart or hand pump equipped with volume measuringdevice, pump a mixture of approved (CP2442) Engine Oiland 7 percent (by volume) (CP5075) Corrosion PreventiveAdditiveinto the following at a maximum pressure of 50psig (345 kPa gage).

NOTE: While pumping oil in, if possible, hand rotate thefan and core rotors, and continue rotating for 1minute after all oil is added.

Location Oil Quantity

Oil supply to AGB 6 qts (6 l)

Oil supply to TGB 1 qt (1 l)

Oil supply to forwardsump

2 qts (2 l)

Oil supply to aft sump 1 qt (1 l)

Oil tank 18 qts (17 l)

Lube and scavenge pumps(oil supply and scavengedischarge)

Wet parts

Scavenge filter bowl 0.5 pt (0,24 l)

(b) Cap all lube system ports, piping open ends, drains,vents, etc., to seal off entire lube system.

(6) Cover and seal open ends of each engine section with (CP2160)Vapor Barrier Film.

(7) Tag sections of engine that lube system and fuel system havebeen preserved with preservation oil.

(8) Cover each section of engine with a waterproof cover and secureit tightly to protect against foreign material and elements ofweather.

E. Period of 30 to 365 Days - Operable Engine Installed on a ShippingStand.

WARNING: DO NOT CARRY OUT THIS PROCEDURE IN A CONFINED SPACEBECAUSE OF NOISE AND RISK OF FUEL AND OIL SPILLAGE.YOU SHOULD DO IT OUT OF DOORS AND ON A FLAT SURFACE.

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(1) Stow the wheel of the stand.

NOTE: Refer to the vendor's manual to stow or brake the wheels.

(2) Make sure there is a safety perimeter around the engine and thatfire extinguishing equipment is at hand.

CAUTION: DO NOT RUN THE HYDRAULIC PUMP WHEN IT IS EMPTY BECAUSE OFRISK OF SEIZURE.

(3) If the hydraulic pump is installed, remove it from the engineand install a proper leak-proof cover on the hydraulic pump padand a cap on the pad cavity drain to prevent loss of engine oil.

CAUTION: IF YOU MOTOR THE ENGINE WITHOUT ACCESSORIES INSTALLEDON THE ACCESSORY GEARBOX, MAKE SURE THAT PAD COVERS ANDGASKETS ARE INSTALLED AND THAT PAD CAVITY DRAINS ARE CAPPEDTO PREVENT LOSS OF ENGINE OIL.

(4) Make sure that the starter air valve is closed.

(5) Connect the air hose from the air supply cart to the starter airvalve. Use a locally manufactured adapter.



(6) Service the oil tank with a mixture of at least 20 quarts(19 liters) of a mixture of (CP2442) Engine Oil and, either5 percent (by volume) (CP5067) Lubrication System CorrosionPreventive Oil, or 7 percent (by volume) (CP5075) CorrosionPreventive Additive.

(7) Put the MEC power lever to FWD position and the fuel shutofflever to CLOSE.

(8) Preserve the engine fuel system:

(a) Put a container, suitable for fuel, under the fuel filterdrain plug.

(b) Remove the fuel filter drain plug and allow the fuel todrain off.

(c) Remove and discard the O-ring from the drain plug.

(d) Install a new O-ring, lightly lubricated with (CP5070)Vaseline on the drain plug.

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(e) Install the drain plug with its threads lightly lubricatedwith grease.

(f) Torque the drain plug to 45-55 lb in. (5,1-6,2 N.m) andsafety with wire.


CAUTION: DO NOT USE SILICONE BASED OILS IN THE FUEL SYSTEM.

(9) Connect a temporary line from the fuel pump inlet to a supplyof (CP5066) Fuel System Corrosion Preventive Oil at 50 psig(345 kPa) max pressure. If pressurized oil is not available,a 10 USG gravity flow container is acceptable as long as thecontainer is one ft (305 mm) above the fuel pump.

(10) Disconnect the PCR line from the port on top of the MEC.Connect a temporary drain line from the PCR port and from thedisconnected line to a 10 U.S. gal (38 liter) container suitablefor fuel.

(11) Make sure that the MEC fuel shut-off lever is CLOSED.

(12) Apply and maintain a pressurized oil supply to the fuel pumpinlet at 50 psi (345 kPa) max, or use a gravity flow container.

WARNING: MAKE SURE THAT PERSONNEL WEAR EAR PROTECTION WHILETHE AIR SUPPLY CART IS OPERATING.

CAUTION: DO NOT TRY TO OPEN THE STARTER AIR VALVE UNTIL THE ENGINEHAS COASTED DOWN FOR AT LEAST 30 SECONDS FROM MAX. MOTORINGSPEED. STARTER FAILURE CAN OCCUR IF THE STARTER IS ENGAGEDAT MORE THAN 20 PERCENT N2.

(13) Motor the engine as follows:

(a) Start the air supply cart.

(b) Manually open the starter air valve and dry motor theengine at max. motoring speed for 2 minutes.

(c) Close the starter air valve and allow the engine to coastdown.

(d) Stop the air supply cart.

WARNING: MAKE SURE THAT THE ENGINE IS FULLY STOPPED BEFORE YOUROTATE THE FAN ROTOR.

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WARNING: USE HEAVY PROTECTIVE GLOVES WHEN YOU TURN THE FANROTOR BY HAND TO PREVENT INJURY TO YOUR HANDS. MAKESURE YOU HAVE SAFE, FIRM FOOTING.

(14) If the fan rotor did not turn during motoring, protect yourhands with heavy gloves and rotate the fan rotor CCW (forwardlooking aft) 2 complete turns.

(15) Remove the temporary drain line from the reference pressureport (PCR) of the MEC and the disconnected line.

(16) Install the line to the MEC.

(17) Start the air supply cart.

(18) Open the starter air valve.

(19) Motor the engine to max. motoring speed, move the fuel leverto OPEN for 10 seconds. Make sure that fuel vapor comes out ofthe tailpipe. Move the lever to CLOSED and continue motoringfor 2 minutes.

CAUTION: DO NOT TRY TO OPEN THE STARTER AIR VALVE UNTIL THE ENGINEHAS COASTED DOWN FOR AT LEAST 30 SECONDS FROM MAX. MOTORINGSPEED. STARTER FAILURE CAN OCCUR IF THE STARTER IS ENGAGEDAT MORE THAN 20 PERCENT N2.

(20) Close the starter air valve and allow the engine to coast down.

(21) Stop the air supply cart.

WARNING: MAKE SURE THAT THE ENGINE IS FULLY STOPPED BEFORE YOUROTATE THE FAN ROTOR.

WARNING: USE HEAVY PROTECTIVE GLOVES WHEN YOU TURN THE FANROTOR BY HAND TO PREVENT INJURY TO YOUR HANDS. MAKESURE YOU HAVE SAFE, FIRM FOOTING.

(22) If the fan rotor did not turn during motoring, protect yourhands with heavy gloves and rotate the fan rotor CCW (forwardlooking aft) 2 complete turns.

(23) Remove the temporary oil supply line from the fuel pump inletand the fuel supply source or gravity flow container.

(24) Install a cover or a cap on the fuel inlet to the pump.

(25) Close the VBV doors with an external pressure source asfollows:

NOTE: The system may be operated by hand. To do this, turn theexposed drive end of the VBV actuator at the 2:30 o'clockposition with 856A2501, Wrench, - VBV Manual Control.

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(a) Fill the pump cart with (CP5066) Fuel System CorrosionPreventive Oil.

CAUTION: BEFORE YOU CONNECT THE SYSTEM TO A HYDRAULIC PRESSURESOURCE, ALWAYS OPERATE IT BY HAND AND CHECK FORBINDING.

(b) Disconnect the VBV open and closed tubes from the flexiblehoses.

(c) Blank off the flexible hoses.

(d) Install adapters onto open and closed tubes.

(e) Attach rod and head end hoses from the hydraulic cart toboth adapters.

CAUTION: DO NOT APPLY A PRESSURE OF MORE THAN 300 PSIG (2068KPA GAGE) THROUGH THE VBV MOTOR.

(f) Close the VBV doors. To do this, apply and maintain apressure of 200-300 psig (1379-2068 kPa) to close the endtube.

NOTE: When you actuate the VBV system, make sure thatthe movement is smooth with no binding or jerking,with a pressure of 100 psig (689 kPa gage) untilthe stop position is reached. Stop position isindicated by a rapid rise in gage pressure.

(g) Visually confirm that the VBV doors are closed.

(h) Disconnect the hydraulic cart hoses from the adaptersinstalled on the VBV open and closed tubes.

(i) Remove the adapters from both tubes.

(j) Remove blanks from the flexible hoses.

(k) Connect both tubes onto flexible hoses.

(l) Torque both tube union nuts to 135-160 lb in. (15-18N.m).

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(m) Cover the VBV bleed grills with (CP2160) Vapor BarrierFilm. Ensure that caps are installed on all disconnectedlines and electrical connections.

(26) Seal inlet and exhaust openings with (CP2160) Vapor BarrierFilm and safety with tape.

(27) Put (CP2098) Dessicant Bags (With Humidity Indicator) on eitherside of the engine. Do not put it in contact with enginehardware.

NOTE: Desiccant must be replaced at regular intervals dependingon weather conditions. Make sure that the desiccantprovides adequate protection to the engine and is stillaccessible for replacement while disturbing a minimumamount of engine protective material.

(28) Cover the entire powerplant with waterproof protective coveringand attach tightly.

(29) Attach a tag to the powerplant to warn that the fuel systemhas been preserved with preservative oil. Include the date ofpreservation.

(30) Lift the shipping stand with a forklift.

(31) Deploy, lower and pin the casters of the shipping stand.

(32) Lower the shipping stand.

(33) Move the forklift clear.

CAUTION: MAXIMUM TOWING SPEED IS 3 MPH (5 KMH).

(34) Tow the shipping stand, with the engine, to the storage area.

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Fuel, Pump, Main Oil/Fuel Heat Exchanger and MEC ConnectionsFigure 1201

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Main Engine Control ConnectionsFigure 1202

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Location of Fuel Filter and Pump, P and D Valve and MECFigure 1203

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4. Depreservation.

Subtask 72-00-00-550-054

A. General.

Depreservation consists of replacing the fluids in the oil and fuelsystems.

Subtask 72-00-00-550-060

B. Procedure.

PRE SB 79-0057 ***Subtask 72-00-00-550-052

(1) Drain the oil tank as follows. Refer to Figure 1204(Configuration One).

(a) Remove the magnetic plug from the oil tank. Remove theO-ring from the groove and discard.

(b) Connect the 856A2502, Adapter, Drain - Oil Tank, to adrain tube. Use a can with a capacity of 6 US gal (23liters). Engage the drain adapter into the oil drainingport.

(c) To drain the oil tank, push the drain adapter and turn tothe lock position.

(d) Install the new O-ring (01-410; 79-11-10) on the magneticplug and install the plug in the oil tank.

END PRE SB 79-0057

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Oil Tank Drain Adapter (Configuration One)Figure 1204

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Oil Tank Drain Plug (Configuration 2)Figure 1205

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SB 79-0057 ***Subtask 72-00-00-550-055

(1).A. Drain the oil tank as follows. Refer to Figure 1205(Configuration 2).

(a) Put the applicable container under the oil tank (min.capacity 6 US. gal (23 liters)).

(b) Remove the plug from the oil tank. Remove the O-ring fromthe groove. Discard the O-ring.

(c) Permit the oil to drain into the container.


(d) Apply a light layer of (CP2442) Engine Oil to the newO-ring. Install the O-ring onto the plug. Install theplug in the oil tank.

END SB 79-0057

Subtask 72-00-00-550-056

(2) Drain accessory drive assembly as follows. Refer to Figure1206.

(a) Place an appropriate container underneath drain port ofAGB, capacity of 1 US gal (4 liters).

(b) Remove drain plug and drain oil.

(c) Remove and discard O-ring from drain plug.

(d) Install new O-ring (10-380; 72-63-00) on drain plug andinstall plug.


(3) Fill tank with 5 US gal (19 liters) of approved (CP2442) EngineOil.

(4) Perform wet motoring of engine as follows:

(a) Pressurize starting system to 25-55 psig (150-380 kPagage) with air.

(b) Position engine controls and switches as follows:

CAUTION: FUEL SHUTOFF LEVER MUST BE IN OFF POSITIONBEFORE FUEL BOOST PUMP IS TURNED ON.

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1 Ignition - OFF

2 Fuel shutoff lever - OFF

3 Throttle - IDLE

4 Fuel boost - ON

CAUTION: THE FUEL PUMP AND MEC ARE FUEL LUBRICATED. DO NOTMOTOR ENGINE UNLESS A POSITIVE FUEL INLET PRESSURE ISINDICATED.

(c) Energize starter and motor engine.

(d) When core engine speed (N2) reaches 15 to 25 percent:

1 Check for oil pressure indication.

2 Place fuel shutoff lever to ON.

3 Check for fuel flow indication. If fuel vapors appearoutside engine exhaust section, immediately turn fuelshutoff lever OFF, otherwise motor for a maximum of 15seconds with fuel shutoff lever ON.

(e) Place fuel shutoff lever to OFF and continue motoring for60 seconds to clear fuel from combustion section.

(f) Check that fuel flow drops to zero.

(g) De-energize starter. During engine coastdown, listen forunusual noise from rotating components. Check fuel andlube system lines, fittings, and accessories for leakage.

(5) Service the oil tank.

(6) Run engine at ground idle for 10 minutes per Test No. 02, TASK72-00-00-760-002 (72-00-00, Testing 002).

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Location of Drain Plugs on Accessory Drive AssemblyFigure 1206

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ENGINE ASSEMBLY - STORAGE 002 - TRANSPORTATION OF THE ENGINE ASSEMBLY

*** Description of change : Tasks have been changed for manual migrationinto the SNECMA INDIGO authoring system. This may include: Task andSubtask renumbering, Effect use modification, and/or Effectivities and Linksconsistency. For more information see the introduction of the manual.

TASK 72-00-00-500-002

1. General.

A. This procedure gives instructions for the transportation of an engine.

2. Tools, Equipment and Materials.

NOTE: You can use equivalent alternatives for tools, equipment, andconsumable materials.

A. Tools and Equipment.

(1) Special Tools.

Tool No. Description

856A3505G01 Cover, Fitted - QEC’D Egine Shipping

856A3595G02 Cover - Bare Engine Shipping

(2) Standard Tools and Equipment.

Description Manufacturer

Engine Stand - Base

(base engine stand - AM2563)

AGSE

Engine Stand - Cradle

(cradle engine stand -AM1802)

AGSE

Engine Stand - Base

(base engine stand -CFD1237)

C& F Millier Ltd.


(cradle engine stand -CFD1157)

C& F Millier Ltd.

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Description Manufacturer

Engine Stand - Base

(base engine stand -FD70.0002)

Frank Brown & Son Ltd.


(cradle engine stand -FD70.0001)

Frank Brown & Son Ltd.

Engine Stand - Base

(base engine stand - 110701)

Stanley Aviation Corporation


(cradle engine stand -110702)

Stanley Aviation Corporation

(3) Locally Manufactured Tools. None.

B. Consumable Materials.None.

C. Referenced Procedures. None.

D. Expendable Parts. None.

3. Procedure

Subtask 72-00-00-550-011

A. General.

This procedure gives instructions for the transportation of an engine.Shipping stands must agree with the CFMI specifications. They have acradle on which the engine is attached and a base on which the cradleis installed through shock absorbers.

Make sure that the shipping stands you use are in good condition andthat they could not cause injuries to maintenance personnel or damageto the engines. CFM recommends you regularly do an inspection of theengines shipping stands for safe continued operations. Refer to thedocumentation supplied by the manufacturer of your stands for moreinstructions.

Subtask 72-00-00-510-012

B. Transportation in the Plant.

(1) The maximum towing speed is 3 mph (5 km/h) on a smooth andhorizontal surface.

(2) Use spring-type casters or pneumatic tyres to tow the engine.

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(3) Make sure that the cradle is free of any attaching device tokeep the full efficiency of the shock absorbers.

(4) Release the four swivel locks of the casters when you tow theengine.

(5) Use the caster braking system to prevent movement of theassembly when necessary.

Subtask 72-00-00-510-013

CAUTION: OBEY THE HIGHWAY TRANSPORTATION INSTRUCTIONS OR ENGINE DAMAGECAN OCCUR. IF THE TRANSPORTATION CONDITIONS DID NOT OBEY THESEINSTRUCTIONS, TELL CFMI FOR ENGINE DISPOSITION.

C. Highway Transportation.

CAUTION: USE "AIR RIDE" (PNEUMATIC) OR ALTERNATIVE "HYDRAULICWITH NITROGEN ACCUMULATORS" SUSPENSION THIS IS TO GETA FILTRATION OF NATURAL FREQUENCY OF THE ENGINE/STANDSUSPENDED ASSEMBLY (FROM 7 TO 10 HZ). FAILURE TO USECORRECT SUSPENSION WILL CAUSE EXTENSIVE ENGINE DAMAGE ANDEXTENSIVE REPAIRS WILL BE NECESSARY.

CAUTION: IF YOU USE ALTERNATIVE "HYDRAULIC-PNEUMATIC" SUSPENSIONS,THE SPEED LIMIT IS 25 MPH (40 KM/H). IF THE SPEED IS MORETHAN THIS LIMIT, DAMAGE TO THE ENGINE CAN OCCUR.

(1) Requirements for the shipment of the engine on trailer andtruck.

(a) When a single engine is shipped, the trailer must bepneumatically suspended.

(b) When 2 or more engines are shipped, the tractor and thetrailer must be pneumatically suspended.

(c) When engines are shipped on a towed trailer or wagon-bedtruck, the axles must be pneumatically suspended.

(2) The shipping stands give protection against the shock andvibration loads which could occur during normal transportation.Refer to figure 1201 and figure 1202 for the applicable cradlesand bases and their dimensions.

(3) Put in place and do a check of the engine/cradle and cradle/baseattaching devices.

(4) Attach the engine/cradle assembly to the base equipped withshock absorbers.

(5) Install the engine lengthwise in the transportation vehicle.

(6) Put the stand base on the truck bed and put the caster wheelsand tow bars in storage position.

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CAUTION: MAKE SURE THAT THE SHORING DOES NOT PREVENT MOVEMENTS OFSHOCK MOUNTS OR CRADLE. THIS IS TO PREVENT DAMAGE TO THEENGINE.

(7) Make sure that the distance between the cradle and the truck bedis not less than 2 in. (50 mm). To get this distance, youcan install wood shoring nailed to the trailer bed below thetransportation base side rails.

(8) Use the correct tie-down points to install the engine base onthe truck. Always use the shipping stand shock mounts. Referto Figure 1203 and Figure 1204.

(a) Use a minimum of 4 tie down straps or chains to attach thebase on the trailer. Use 6, 8 or 10 tie-down straps orchains when possible.

(b) Attach the tie-down straps or chains to the air/trucktie-down rings and pull them on a diagonal across thetrailer bed. Attach the straps or chains to the attachingpoints on the trailer bed.

(c) Make sure that the engine/stand assembly is attached tothe trailer only with the correct tie-down points on thebase.

Subtask 72-00-00-510-014

D. Water Transportation.

(1) You can ship the engine on ferry boats in the conditions thatfollow:

(a) Obey the highway transportation conditions for watertransportation. Refer to Subtask 72-00-00-510-013(paragraph 3.C).

(b) The "Air Ride" suspension system of the vehicle must be on(air bottles inflated) during the water transportation.

(c) Engine exposure to salty air must not be more than eightdays, loading and unloading sequences included.

(d) Put the applicable shipping cover on the engine. Refer toSubtask 72-00-00-510-017 (paragraph 3.G).

Subtask 72-00-00-510-015

E. Air Cargo Transportation.

(1) You can ship engines on a cradle only or on a base and cradleassembly.

(2) Use only the base tie-down rings for the tie-down of the engineon a cradle/base assembly. Refer to Figure 1205.

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(3) Make sure that the caster wheels and tow bars are locked in thestowed position.

Subtask 72-00-00-510-016

F. Rail Transportation.

(1) Do not ship the engine by rail.

Subtask 72-00-00-510-017

CAUTION: INSTALL THE APPLICABLE COVER ON THE ENGINE BEFORE SHIPMENT.FOREIGN OBJECT, DUST OR RAIN CAN CAUSE DAMAGE DURING SHIPMENT.

G. Engine protection during shipment.

(1) Use 856A3505, fitted cover for a QEC’d engine.

(2) Use 856A3595, cover for a bare engine.

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Approved Shipping Stands - DimensionsFigure 1201

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Shipment on Cradle without Base - DimensionsFigure 1202

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Correct Tie-Down Procedure with Shoring Placed Below the BaseFigure 1203

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Accepted Alternate Tie-Down ProcedureFigure 1204

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Aircraft Tie-Down LocationsFigure 1205

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