Transporte de Los Generadores de Gas Rb211 y Avon Rolls Royce 4

8/12/2019 Transporte de Los Generadores de Gas Rb211 y Avon Rolls Royce 4

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8Page 1Operation, Maintenance and Parts Manual, Sept 2007

REMOVAL, PACKING, STORAGE AND INSTALLATION

AVONINDUSTRIAL APPLICATIONSOPERATION, MAINTENANCE AND PARTS MANUAL

rChapter 8


CHAPTER CONTENTS

GAS GENERATOR REMOVAL 1

Introduction 1.1

Prepare to Remove the Gas Generator 1.2

Lift the Gas Generator into the Transit Stand 1.3

Fit the Gas Generator into the Storage Bag 1.4

GAS GENERATOR STORAGE 2

Introduction 2.1

Protection of Installed Gas Generators 2.2

External Protection 2.3

Recommended Protection Procedures 2.4

Transporting the Gas Generator 2.5

Inspect the Humidity Indicator 2.6

Inspect and Repair of Gas Generator Storage Bags 2.7

Inspect the Storage Bag and Inner Blanket 2.8

Repair the Storage Bag and Inner Blanket 2.9

GAS GENERATOR PACKING 3

Packing the Gas Generator into the Storage Bag 3.1

Silica Gel Desiccant Regeneration Information 3.2

Silica Gel Regeneration Procedure 3.3

GAS GENERATOR INSTALLATION 4

Introduction 4.1

Prior to Installing the Gas Generator 4.2

Transfer the Gas Generator from the Transit Stand to the Installation 4.3

Install the Gas Generator 4.4

TABLES

Table 1 Non-Installed Gas Generator Storage Requirements

Table 2 Installed Gas Generator Storage Requirements


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Operation, Maintenance and Parts Manual, Sept 2007

INDUSTRIAL APPLICATIONSOPERATION, MAINTENANCE AND PARTS MANUAL

r

INTENTIONALLY LEFT BLANK


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r(b) Release six captive reachnuts securing the starter motor fairing to the

front bearing housing. Withdraw the fairing to expose the startermotor.

WARNING THE STARTER MOTOR WEIGHS APPROXIMATELY56 LBS (25.4 KGS) AND WILL REQUIRE MORETHAN ONE PERSON TO SUPPORT ITS WEIGHTDURING REMOVAL.

(c) Release eight captive bolts with spring washers and plain washerssecuring the starter motor to the front bearing housing. Remove thetop bolt last then withdraw the starter motor from the bearing housing.Discard the jointing gasket.

OR

(d) Release six captive reachnuts securing the external starter motordrive shaft fairing to the front bearing housing. Withdraw the fairingand allow it to rest on the external starter drive shaft.

(e) Disconnect the drive shaft from the external starter motor (refer toPlant Installation Manual) and from the gas generator starter drivecoupling.

(f) Remove the drive shaft, drive shaft fairing, intake flare, sealing ring

and retaining clips.

(5) Exhaust transition unit.

(a) Remove plant manufacturer's heat shield (if fitted). Release andremove the exhaust transition section retaining clamps. Slide theexhaust transition section in to the power turbine inlet duct.

NOTE For close coupled gas generators, refer to the PlantManufacturer's Manual.


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r(6) Bleed valves.

(a) Disconnect the plant ducting from the gas generator bleed valves(refer to Plant Installation Manual).

CAUTION BEFORE DISCONNECTING PIPE FITTINGSPLACE A SUITABLE CAPACITY RECEPTACLEBELOW THE CONNECTION TO COLLECT ANYPIPE CONTENTS. AFTER DISCONNECTING PIPEFITTINGS ENSURE THAT THE CORRECT PIPEBLANKS ARE FITTED WITHOUT DELAY TOPREVENT THE INGRESS OF FOREIGN MATERIAL.

(7) Working along the right-hand side of the gas generator:

(a) Where an external wheelcase is fitted, place a suitable capacitycontainer below the external wheelcase oil sump drain points, thendrain the sump.

(b) Place a suitable capacity container below the hydraulic oil drain valveon the underside of the compressor casing, then drain the hydraulicoil.

(c) Remove the hydraulic oil drain pipe from the drain block connectionsituated below the compressor intermediate casing.

(d) Remove the hydraulic oil delivery pipe from the oil filter inletconnection.

(e) Remove the external oil tank pressure balance pipe connection on theupper part of the external wheelcase.

(f) Remove the lubricating oil delivery pipe from the external oil tank tothe oil filter connection.

(g) Remove the centrifugal breather vent pipe from the external

wheelcase breather adapter.

(h) Remove the electrical lead(s) from the electro-magnetic speed pick-uptransducers (when fitted) or the eddy current speed probe (whenfitted).


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r(i) Remove the electrical leads from the vibration transducers, then

remove the transducers from the gas generator.

WARNING THE ELECTRICAL ENERGY STORED IN THE

IGNITER UNITS IS POTENTIALLY LETHAL. DONOT HANDLE THE HIGH TENSION LEAD TO THEIGNITER PLUG UNTIL THE POWER HAS BEENDISCONNECTED, THEN ALLOW AT LEAST TENMINUTES TO ELAPSE BEFORE COMMENCINGTHE OPERATIONS.

(j) Remove the electrical lead from the right-hand igniter plug.

(k) Remove the cooling air vent from the adapter on the cooling airmanifold.

(8) Fuel pipes.

WARNING WARNING TAKE PRECAUTIONS AGAINST THECONSEQUENCES OF ANY RESIDUAL FUEL TRAPPEDIN THE FUEL SYSTEM COMPONENTS.

(a) Phase 2 gas generators.

(i) Disconnect and remove the fuel supply pipe to the fuel manifolds

distributor block.

(ii) Disconnect and remove the fuel drain pipe from the underside ofthe gas generator.

(9) Working along the left-hand side of the gas generator:

(a) Remove the electrical leads from the vibration transducers, thenremove the transducers from the gas generator.

(b) Remove the anti-icing hot air connection from the anti-icing hot air

elbow, just forward of the front suspension link.

(c) Remove the electrical connection from the anti-icing hot air valve.

(d) Remove the power turbine sealing air supply pipe from thecompressor stage 8 air tapping on the lower part of the gas generatorin line with the front suspension.

(e) Remove the compressor stage 3 air tapping on the stage 3 air filter.

(f) Disconnect the remote oil cooler supply and return pipes from the

adapter on the compressor outlet casing bracket.


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r(g) Remove the oil gauge pipe from the lower part of the external

wheelcase.

(h) Remove the compressor seal vent pipe from the vent adapter located

below the compressor outlet casing.

WARNING THE ELECTRICAL ENERGY STORED IN THEIGNITER UNITS IS POTENTIALLY LETHAL. DONOT HANDLE THE HIGH TENSION LEAD TO THEIGNITER PLUG UNTIL THE POWER HAS BEENDISCONNECTED, THEN ALLOW AT LEAST TENMINUTES TO ELAPSE BEFORE COMMENCINGTHE OPERATIONS.

(i) Remove the electrical lead from the left-hand igniter plug.

(j) Remove the cooling air vent pipe from the adapter on the cooling airmanifold.

(k) Remove the compressor stage 2 air connection located on thecompressor outlet casing.

(10) Thermocouples.

(a) Disconnect the thermocouple connections at the gas generator

junction box.

(11) Final check.

(a) Inspect the gas generator to confirm that no other component orconnection will obstruct the removal of the gas generator from theinstallation, and then the fitting of the gas generator into the transitstand. Rectify any obstruction as necessary.


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r1.3 Lift the Gas Generator into the Transit Stand

CAUTION IF THE GAS GENERATOR IS FITTED IN THE LOWERPOSITION IN A QUADRUPLE GAS GENERATOR

INSTALLATION, REFER TO THE PLANT INSTALLATIONMANUAL TO LIFT OUT THE GAS GENERATOR ANDSUB-FRAME. DO NOT USE THE GAS GENERATOR LIFTINGEYES TO LIFT THE GAS GENERATOR AND SUB-FRAME ASAN ASSEMBLY. ONCE THE GAS GENERATOR ANDSUB-FRAME HAVE BEEN REMOVED AS AN ASSEMBLYFROM THE INSTALLATION, THE FOLLOWING PROCEDURECAN BE USED TO LIFT THE GAS GENERATOR INTO THETRANSIT STAND.

(1) Fit the lifting sling, Tool No.LOT16428 to the front and rear gas generator

lifting points. (Refer toChapter 9, Fig 100). Connect the sling to a suitablehoist and raise the hoist to take the gas generator weight.

NOTE The Safe Working Load of lifting sling, Tool No.LOT16428, is4000 lbs (1815 kg).

(2) Disconnect the front suspension. Remove the caps from the rear trunnionbrackets and lift the gas generator from the installation in to the transitstand.

(3) Remove the two bolts, washers and nuts securing each rear trunnionbracket to the transit stand, Tool No.LOT16292. Remove the brackets fromthe stand and fit them to the gas generator rear mounting trunnions.Securely tighten the trunnion brackets to the gas generator.

(4) Remove the two bolts, washers and nuts securing the front mounting armsto the transit stand. Lift the arms off the stand and store them close to hand.

(5) Confirm that the storage bag, Tool No.LOT16276, is correctly positionedover the rear trunnion mounting. If necessary, remove four bolts and nuts torelease the bag clamping plate at the front mounting arm position, locate

the storage bag in position, then refit the rubber clamping plate and metalclamping plate to secure the storage bag to the mounting. Secure themountings and storage bag with the four bolts and nuts.(Refer toChapter 9, Fig 100).

(6) Manoeuvre the gas generator into position over the transit stand.

(7) Carefully lower the gas generator on to the transit stand to locate the standrear trunnion brackets into position on the stand. Do not fit the securingbolts at this stage.
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r(8) Lower or raise the front of the gas generator until the transit stand front

mounting arms can be refitted to the stand and secured by the two bolts andwashers; then the gas generator front suspension locations secured to themounting arms with pip-pins (Refer toChapter 9, Fig 100), Tighten the

securing bolts.

(9) Fit two bolts with washers and nuts securing each rear trunnion bracket tothe transit stand. Tighten the nuts.

(10) With the gas generator front and rear mountings secured to the transitstand, release the weight off the hoist and remove the lifting sling from thegas generator.

1.4 Fit the Gas Generator into the Storage Bag

NOTE This information is repeated as self contained in Para 3.1, and isincluded here to complete this paragraph contents.

(1) Ensure that the gas generator has been treated correctly and that sharpprojections cannot damage the storage bag.

(2) Ensure all the necessary blanks and covers are fitted.

(3) Place sheets of grease resistant paper, approximately 6 ft, x 3 ft, over eachside of the generator,

(4) Place the required quantity of desiccant, over the generator.

(5) Ensure the blanket, part of storage bag, Tool No. LOT16276 is fitted overthe gas generator.

(6) Place the humidity indicator in the pocket in the bag under the observationwindow.

(7) Carefully draw the bag over the generator and close the bag by pulling theslide slowly along the interlocking closure using locking tool, Tool No.

LOE1072.

2 GAS GENERATOR STORAGE

2.1 Introduction

(1) The storage life of an Industrial Avon Gas Generator is a maximum of fouryears, when stored in a bagged and treated condition, and inspected at therecommended intervals.

(2) Gas generators which are to be stored or transported require protection

against the entry of foreign material and against corrosion.
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r(3) Foreign material is excluded by blanking off all apertures, and corrosion

can be prevented by inhibiting the gas generator, inserting a VolatileCorrosion Inhibitor/Vapour Phase Inhibitor/Cyclohexylamine Carbonate(VCI/VPI/CHC) paper into the intake, and packing the gas generator in a

re-useable moisture and vapour proof (MVP) bag containing an appropriateamount of desiccant (a moisture absorbing substance).

(4) Inspect the humidity indicator paper at the following periods:

(a) 24 hours after sealing the gas generator in the MVP bag.

(b) 7 days after sealing the gas generator in the MVP bag.

(c) Monthly thereafter, up to a maximum period of four years.

(5) If at any time during inspection of the humidity indicator it is found to be pinkin colour, open the storage bag, remove the desiccant, then inspect the gasgenerator for corrosion. If corrosion is found, clean and reprotect the gasgenerator, place fresh desiccant over the gas generator and change thehumidity indicator.

2.2 Protection of Installed Gas Generators

(1) The treatment of installed gas generators when they are not required to runfor a minimum of one month, or a maximum of six months, is dependent

upon the climate and storage conditions. It is however recommended that,where possible, gas generators are stored in a bagged condition.

CAUTION REMOVE ALL COVERS, BLANKS, HUMIDITYINDICATING PAPER AND DESICCANT BEFORESTARTING THE GAS GENERATOR.

(2) If the gas generator is to be maintained in a state of immediate readiness,it should have a preservation run every 30 days. This preservation runshould consist of starting the gas generator then running it for five minutesat idling speed, following by one minute running at the maximum operating

speed or highest practicable speed.

2.3 External Protection

(1) Using white spirit and a clean lint free cloth, clean the gas generator.

(2) Examine all surface treatment on casings for damage. Remove anycorrosion using fine emery cloth.


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rTable 1 Non-Installed Gas Generator Storage Requirements

(2) Fit covers and blanks

(3) Insert VCI/VPI/CHC paper

(4) Pack Gas Generator in the MVP bag and add desiccant as specified inPara 3.1

CONDITION ANTICIPATED PERIODS (a) (b) (c)

Heated building and dry

tropical

Up to 7 days *

8 to 30 days * *

31 days to 6 months * *

Over 6 months * * *

Unheated buildingtemperature

Up to 7 days *

8 to 14 days * *

15 to 30 days * *

31 days to 6 months over 6 months * * *

Humid tropical (above 80%humidity)

Up to 3 days *

4 to 8 days 8 days to 3 months * *

Over 3 months * * *


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rTable 2 Installed Gas Generator Storage Requirements

(5) Fit covers and blanks

(6) Insert VCI/VPI/CHC paper

(7) Inhibit Compressor

2.5 Transporting the Gas Generator

(1) Pack the gas generator, on the transit stand, in the transportation case.

(2) Remove the bolts securing the packing case lid, then using a lifting sling,Tool No.LOT16093, remove the lid of the packing case, Tool No.LOE1065.Remove the sling.

CAUTION DO NOT USE THE GAS GENERATOR LIFTING POINTSTO LIFT THE GAS GENERATOR AND TRANSIT STANDTOGETHER.

(3) Using the transit stand sling, Tool No.LOT16427, lift the transit standcomplete with the gas generator and lower it between the wooden blocks onthe base of the packing case, then remove the sling.

(4) Secure the transit stand to the packing case base using the four brackets,eight bolts and eight nuts provided.

(5) Using the lifting sling, Tool No.LOT16093, replace the packing case lid andsecure with the bolts. Remove the lifting sling.

CONDITION ANTICIPATED PERIODS (a) (b) (c)

Heated building and dry

tropical

Up to 7 days *

8 to 30 days * *

31 days to 6 months * *

Over 6 months * * *

Unheated buildingtemperature

Up to 7 days *

8 to 14 days * *

15 to 30 days * *

31 days to 6 months over 6 months * * *

Humid tropical (above 80%humidity)

Up to 3 days *

4 to 8 days * *

8 days to 3 months Over 3 months * * *


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r2.6 Inspect the Humidity Indicator

(1) Inspect the humidity indicator at the following periods:

(a) 24 hours after sealing the generator.

(b) 7 days later.

(c) Monthly thereafter to a maximum period of four years.

(2) If, at any time, during the periods specified in sub-paras (a) to (c), thehumidity indicator is found to be pink in colour, open the storage bag,remove the desiccant then, inspect the generator for corrosion.

(a) If corrosion is apparent, protect the generator as instructed inPara 2.2

andPara 2.3.

(3) Place fresh desiccant over the generator and change the humidity indicator.

2.7 Inspect and Repair of Gas Generator Storage Bags

(1) Damaged storage bags and inner blankets must be repaired before beingre-used. The most common forms of damage are tears and puncturescaused by sharp edges or rough handling. These can be repaired using therepair kit, Tool No.PCT165274, as instructed in the following paragraph.

There is no practical limit to the size of tear which may be repaired, so longas the proviso given under Para 2.8 is observed.

2.8 Inspect the Storage Bag and Inner Blanket

(1) Examine the bag and inner blanket for tears and punctures and examine thebag interlocking closure. Discard the bag if it has a tear or puncture closerthan 1.5 in. (38,1 mm.) to the closure, or if the closure is damaged to theextent that it will not seal or hold correctly. Repair other tears or puncturesas instructed inPara 2.9


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r2.9 Repair the Storage Bag and Inner Blanket

NOTE 1 The materials detailed below will be found in the gas generatorstorage bag repair kit, Tool No.PCT165274.

NOTE 2 Although durable any repair to the storage bag should be consideredto be a temporary repair. The bag should be inspected at no more thansix monthly intervals and whenever the bag is received at a workshop,and the repair patches replaced if necessary.

(1) Repair punctures or tears outside the seam area.

(a) Using the storage bag repair kit, Tool No.PCT165274, cut two patchesfrom the repair material that are large enough to overlap the punctureor tear by at least 1.5 in. (38,1 mm.) all round. Ideally the two patches

should be identical in shape and size.

(b) Using white spirit, or a weak solution of commercial detergent, orsparing use of gasoline/petrol, clean the area around the puncture ortear to at least that which will be covered by the two repair patches.Allow the cleaned area to dry thoroughly.

(c) Wipe the cleaned area and one side of a patch with a cloth moistenedwith acetone.

(d) Apply a thin coat of adhesive, part of repair kit, Tool No.PCT165274,to the cleaned area of the bag or inner blanket, and to the cleaned sideof the patch. Evenly distribute the adhesive. Allow the adhesive to dry,then apply a second coat of adhesive.

(e) Allow the second coat of adhesive to become touch dry (when it is'tacky' to the touch - about 10 to 15 minutes). Place the bag or innerblanket area to be repaired onto a flat surface, adhesive sideuppermost, then apply the patch (adhesive to adhesive) to the coverand press the patch firmly into position using hands and fingers.

(f) Apply french chalk, part of repair kit, Tool No.PCT165274, around theedges of the patch having first ensured that the patch edges are firmlyadhered to the bag or inner blanket.

(g) Repeat instructions(b) to (f)to apply the second patch to the otherside of the bag or blanket, matching the position of the two patcheswith each other.


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r(2) Repair punctures or tears adjacent to pinched seams.

(a) Identify the area of the puncture(s) or tear(s) (Refer toChapter 9,Fig 101), then prepare the repair area by cutting away the hem of the

pinched seam as shown (Refer toChapter 9, Fig 102).

(b) Using the storage bag repair kit, Tool No.PCT165274, cut two patchesfrom the repair material that are large enough to overlap the punctureor tear by a least 1.5 in. (38,1 mm.) all around and fit the pinchedseam, (Refer toChapter 9, Fig 103). Ideally the two patches shouldbe identical in shape and size.

(c) Cut slits in one patch as shown (Refer to Chapter 9, Fig 103), topermit the patch to closely fit on either side of the pinched seam. Thispatch will fit as shown to the inside of the storage bag or inner blanket.

(d) Using white spirit, or a weak solution of commercial detergent, orsparing use of gasoline/petrol, clean the area around the puncture ortear to at least that which will be covered by the two repair patches.Allow the cleaned area to dry thoroughly.

(e) Wipe the cleaned area on the seamed side of the storage bag and oneside of the slit patch with a cloth moistened with acetone.

(f) Apply a thin coat of adhesive, part of repair kit, Tool No.PCT165274,

to the cleaned area on the seamed side of the bag, and to the cleanedside of the slit patch. Evenly distribute the adhesive. Allow theadhesive to dry, then apply a second coat of adhesive.

(g) Allow the second coat of adhesive to become touch dry (when it is'tacky' to the touch - about 10 to 15 minutes). Place the bag or innerblanket area to be repaired onto a flat surface, adhesive sideuppermost, then apply the patch (adhesive to adhesive) to the coverand press the patch firmly into position using hands and fingers.

(h) Apply french chalk, part of repair kit, Tool No.PCT165274, around the

edges of the patch having first ensured that the patch edges are firmlyadhered to the bag.

(i) Repeat instructions(d) to (h)to apply the uncut second patch to theother side of the bag, matching the position of the two patches witheach other.

(3) Repair punctures or tears adjacent to overlapped seams by following theprocedure detailed in the instruction above.
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r3 GAS GENERATOR PACKING

3.1 Packing the Gas Generator into the Storage Bag

NOTE This paragraph content is repeated in Para 1.4 to complete thatparagraph information

(1) Ensure that the gas generator has been treated correctly and that sharpprojections cannot damage the storage bag.

(2) Ensure all the necessary blanks and covers are fitted.

(3) Place sheets of grease resistant paper, approximately 6 ft. x 3 ft., (1.84 m x0.91 m) over each side of the generator.

(4) Place the required quantity of desiccant, over the generator.

(5) Ensure the blanket, part of storage bag, Tool No.LOT16276 is fitted over thegas generator.

(6) Place the humidity indicator in the pocket in the bag under the observationwindow.

(7) Carefully draw the bag over the generator and close the bag by pulling theslide slowly along the interlocking closure using locking tool, Tool

No.LOE1072.

3.2 Silica Gel Desiccant Regeneration Information

(1) The procedure to regenerate silica gel described in Para 3.3is taken frominformation supplied by a leading silica gel manufacturer.

(2) Although the regeneration of silica gel is possible under mostcircumstances, it should be noted that the silica gel could break and crackunder regeneration and the fabric of the packaging may suffer stress andweaken. If a small hole occurs in the packaging or the adhesion between

layers deteriorates then there is a possible risk of the gel leaking, causingcontamination of the gas generator.

(3) Whilst the information contained herein is given in good faith, theregeneration of the silica gel is a process beyond the control of Rolls-Royceor the silica gel manufacturer. Neither Rolls-Royce nor the silica gelmanufacturer accepts any liability for any loss or damage caused directly orindirectly by the regeneration of silica gel or by the use of regenerated silicagel.


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r3.3 Silica Gel Regeneration Procedure

(1) Silica Gel Desiccant can be regenerated by placing the bandoliers in aventilated oven, heated to 100 deg C (212 deg F) for five hours.

4 GAS GENERATOR INSTALLATION

4.1 Introduction

(1) The information in this Chapter gives general instructions for the installationof the gas generator and may vary in detail according to the type ofinstallation. This information should therefore be used in conjunction withthe information given in the Plant Installation Manual.

(2) The information in this Chapter may also be influenced by whether the fuel

system and lubricating oil system are gas generator mounted (Phase I gasgenerators) or mounted away from the gas generator (Phase II gasgenerators). Illustrations showing typical installation fittings are shown(Refer to Chapter 9, Figs 96, 97, 98 and 99), as listed in the Chaptercontents.

4.2 Prior to Installing the Gas Generator

(1) Before removing the gas generator from the storage bag, ToolNo.LOT16276, inspect the humidity indicator.

(2) Visually inspect the gas generator and check the compressor and turbineshaft for freedom of rotation.

(3) Complete electrical circuit continuity checks.

(4) If any of the above indicate an unsatisfactory condition, or if the gasgenerator has been incorrectly stored, or if the gas generator has beenstored for longer than four years, contact the Technical Support Manager,Rolls-Royce Power Engineering plc, Ansty, Coventry CV7 9JR, England.

(5) Confirm that the lubricating oil, hydraulic oil, electrical and fuel supplies tothe gas generator are isolated.

(6) If an external starter is specified, remove the nuts securing the starter drivefairing to the front bearing housing, then remove the fairing from the gasgenerator.
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r(7) Remove eight bolts with spreader washers and tabwashers (Pre-Mod.4103)

or spring washers (Mod.4103) securing the coupling shaft bearing housingto the starter drive housing, then remove the coupling shaft bearing housingfrom the starter drive housing, complete with the starter drive coupling

shaft. Fill the oil weir reservoir at the lower rear of the coupling shaft bearinghousing with clean gas generator lubricating oil. Using a new gasket refit thecoupling shaft bearing housing, complete with starter drive coupling shaft,to the starter drive housing, simultaneously engaging the splines on thecoupling shaft with the splines in the ratchet bearing housing. Torquetighten the eight bolts.

(8) Lay aside the front suspension links and remove the caps from theinstallation rear mounting brackets.

4.3 Transfer the Gas Generator from the Transit Stand to the Installation

CAUTION IF THE GAS GENERATOR IS TO BE FITTED IN THE LOWERPOSITION IN A QUADRUPLE GAS GENERATORINSTALLATION, REFER TO THE PLANT INSTALLATIONMANUAL TO LIFT OUT THE GAS GENERATOR ANDSUB-FRAME. DO NOT USE THE GAS GENERATOR LIFTINGEYES TO LIFT THE GAS GENERATOR AND SUB-FRAME ASAN ASSEMBLY. IF THE GAS GENERATOR AND SUB-FRAMEARE TO BE FITTED AS AN ASSEMBLY TO THEINSTALLATION, THE FOLLOWING PROCEDURE CAN BE

USED TO LIFT THE GAS GENERATOR INTO THESUB-FRAME.

(1) Fit the lifting sling, Tool No.LOT16428, to the front and rear gas generatorlifting points. (Refer toChapter 9, Fig 100). Connect the sling to a suitablehoist and raise the hoist to take the gas generator weight.

NOTE The Safe Working Load of lifting sling, Tool No.LOT16428, is4000 lbs, (1815 kg).

(2) Remove the two bolts, washers and nuts securing the front mounting arms

to the transit stand. Lift the arms off the stand and store them close to hand.

(3) Remove the two bolts, washers and nuts securing each rear trunnionbracket to the gas generator rear mounting trunnions. Remove the bracketsfrom the gas generator and refit them to the transit stand, ToolNo.LOT16292.

(4) Confirm that the storage bag, Tool No.LOT16276, will not obstruct the gasgenerator as it is lifted off.

(5) Lift the gas generator clear of the transit stand, Tool No.LOT16292.
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r(6) Refit the front mounting arms to the transit stand, Tool No.LOT16292.

(7) Apply the specified lubricant to the gas generator rear trunnions, thetrunnion spherical bearings and the trunnion securing bolts.

(8) Fit the longer of the two spherical bearing bushes to the gas generatorleft-hand trunnion, viewed from rear, with the shorter parallel extension ofthe bush facing inward.

(9) Fit the other spherical bush to the right-hand trunnion, viewed from rear,then fit the securing bolts and cupwashers but do not tighten at this stage.(Refer toChapter 9, Fig 104).

NOTE 1 It is preferable that these securing bolts are not finally tightenedand locked until the gas generator is installed. If space

restrictions make this impossible the securing bolts may betightened at this stage.

NOTE 2 The gas generator is located laterally by the fixed left-handtrunnion; the right-hand trunnion is free to move in its sphericalbearing to accommodate thermal expansion.

4.4 Install the Gas Generator

(1) Ensure that the exhaust transition section is correctly located in the free

power turbine ducting. Refer to the Plant Manufacturer's Manual.

(2) Carefully lower the gas generator into the installation and, as appropriate:

(a) Locate and loosely secure the rear mounting trunnion blocks.

(b) Locate the spherical bushes in the brackets, then loosely secure thebracket caps.

(c) Align the gas generator rear mounting flange with the free powerturbine ducting. Connect and secure, referring to the Plant Installation

Manual.

(3) Lubricate the spherical bearings and the bell crank lever of the frontsuspension with the specified lubricant, then fit the bearings to theirlocations in the front suspension bell crank levers (Refer to Chapter 9,Fig 104).

(4) Ensure 'D' headed bolts of front suspension are lubricated in accordancewith instructions stated in routine maintenance. (Refer to Chapter 9,Fig 74) for grease nipple locations.
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r(5) Align one front mounting link with the spherical bearing in the gas generator

front suspension; fit and loosely secure the mounting bolt, plain washer andcastellated nut. Carefully adjust the height of the gas generator to align theother side of the front suspension; fit and loosely secure the mounting bolt,

plain washer and castellated nut.

(6) Tighten the front suspension mounting bolts to the torque figure specified inthe Plant Manufacturer's Manual and lock the nuts with split pins.

(7) Tighten the rear mounting trunnion block securing bolts or, in the case ofgas generator, the nuts securing the block caps, to the torque figurespecified in the Plant Manufacturer's Manual and lock the bolts or nuts.

(8) Slide the exhaust transition section into position located on the exhaust unit.Fit and secure the exhaust transition section clamps. Fit the plant

manufacturer's heat shield (when supplied).

NOTE For close coupled gas generators, refer to the PlantManufacturer's Manual.

(9) Remove the lifting sling and hoist.

(10) Bleed valves.

(a) Connect the plant ducting to the gas generator bleed valves (refer to

Plant Installation Manual).

(11) Working along the right-hand side of the gas generator refer toPara 1.1 (2).

(a) Where an external wheelcase is fitted, ensure that the externalwheelcase oil sump drain points are tightened, then fill the sump to therecommended level.

(b) Ensure that the hydraulic oil drain valve on the underside of thecompressor casing is tightened then replenish the hydraulic oil.

(c) Fit the hydraulic oil drain pipe to the drain block connection situatedbelow the compressor intermediate casing.

(d) Fit the hydraulic oil delivery pipe to the oil inlet connection.

(e) Fit the external oil tank pressure balance pipe connection on the upperpart of the external wheelcase.

(f) Fit the lubricating oil delivery pipe to the external oil tank to the oil fillerconnection.


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r(g) Fit the centrifugal breather vent pipe to the external wheelcase

breather adapter.

(h) Fit the electrical lead(s) to the external wheelcase or from the

electro-magnetic speed pick-up transducers (when fitted) or the eddycurrent speed probe (when fitted).

(i) Fit the vibration transducer(s) then connect the electrical leads tothem.

(j) Fit the electrical lead from the right-hand igniter plug.

(k) Fit the cooling air vent from the adapter on the cooling air manifold.

(12) Working along the left-hand side of the gas generator:

(a) Fit the vibration transducer(s) then connect the electrical leads tothem.

(b) Fit the anti-icing hot air connection to the anti-icing hot air elbow, justforward of the front suspension link.

(c) Fit the electrical connection to the anti-icing hot air valve.

(d) Fit the power turbine sealing air supply pipe to the compressor stage

8 air tapping on the lower part of the gas generator in line with the frontsuspension.

(e) Fit the compressor stage 3 air tapping on the stage 3 air filter.

(f) Connect the remote oil cooler supply and return pipes to the adapteron the compressor outlet casing bracket.

(g) Fit the oil gauge pipe to the lower part of the external wheelcase.

(h) Fit the compressor seal vent pipe to the vent adapter located below

the compressor outlet casing.

(i) Fit the electrical lead to the left-hand igniter plug.

(j) Fit the cooling air vent pipe to the adapter on the cooling air manifold.

(k) Fit the compressor stage 2 air connection located on the compressoroutlet casing.


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r(13) Thermocouples

(a) Connect the thermocouple connections at the gas generator junctionbox.

(14) Starter motor or starter motor drive shaft

(a) Connect the gas generator integral starter motor electrical connectionleads at the gas generator.

NOTE The cover of each junction box can be lifted and rotated toallow access to the terminal securing screws.

(b) Release six captive nuts securing the starter motor fairing to the frontbearing housing. Withdraw the fairing to expose the starter motor.

WARNING THE STARTER MOTOR WEIGHS APPROXIMATELY56 LBS (25,4 KGS) AND WILL REQUIRE MORETHAN ONE PERSON TO SUPPORT ITS WEIGHTDURING FITTING.

(c) Using a new gasket, fit eight captive bolts with spring washers andplain washers to secure the starter motor to the front bearing housing.

OR

(d) Locate the drive shaft, drive shaft fairing, intake flare, sealing ring andretaining clips in position to the gas generator.

(e) Connect the drive shaft from the external starter motor (refer to PlantInstallation Manual) and from the gas generator starter drive coupling.

(f) Fit six captive reachnuts securing the external starter motor drive shaftfairing to the front bearing housing.

(15) Plant intake ducting

(a) Fit the ducting referring if necessary to the Plant Installation Manual.

CAUTION THE INTAKE FLARE IS HEAVY AND WILLREQUIRE MORE THAN ONE PERSON TOSUPPORT ITS WEIGHT DURING REMOVAL.

(16) Intake flare

(a) Support the intake flare and fit the retaining clips securing the rubbersealing ring to the flare and intake extension.


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r(17) Fuel pipes

WARNING TAKE PRECAUTIONS AGAINST THE CONSEQUENCESOF ANY RESIDUAL FUEL TRAPPED IN THE FUEL

SYSTEM COMPONENTS.

CAUTION WHENEVER A FUEL CONNECTION HAS BEENDISTURBED ON THE GAS GENERATOR, IT ISMANDATORY THAT THE CONNECTION IS CHECKEDFOR INTEGRITY OF ASSEMBLY AND FOR TIGHTNESS.

(a) Phase II gas generators.

(i) Fit and connect the fuel drain pipe to the underside of the gasgenerator.

(ii) Fit and connect the fuel supply pipe to the fuel manifoldsdistributor block.

(b) Bleed the fuel system.

(18) Check the security and locking of the installation fittings and connectionsand of the gas generator generally.

(19) Inspect the gas generator air intake and ensure that all tools and any loose

items, that might be ingested by the gas generator, have been removedfrom the vicinity of the intake. Clean all floor and ledge surfaces and ensurethat any loose equipment in front of, or surrounding the intake is eithersecured or removed.

(20) Turn ON the lubricating oil, hydraulic oil, electrical and fuel supplies (seePlant Manufacturer's Manual).

(21) The gas generator is now ready for service.

Transporte de Los Generadores de Gas Rb211 y Avon Rolls Royce 4

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Transcript of Transporte de Los Generadores de Gas Rb211 y Avon Rolls Royce 4