* * * FOR ALL
TASK 72-00-23-420-801
1 . General.
A.This procedure gives instructions to install the No. 1 bearing assembly (01100). Refer to Figure 401.
B.This procedure starts with the fan hub module, the high pressure compressor (HPC) assembly, and the high pressure turbine module (HPT module) assembled in the horizontal position and installed on pedestals or installed in the 11C3044   adapter assembly, attached to the customer overhead rail system. This procedure must be completed after the No. 2 bearing assembly is installed on the fan hub module. If necessary, refer to TASK 72-00-24-420-802 (72-00-24, INSTALLATION 001) .
•
Fan hub module (25-010 , 72-00-02) (SIN 00102)
•
Fan hub module (25-011 , 72-00-02) (SIN 00102) - SB 72-0156
•
Fan hub module (25-012 , 72-00-02) (SIN 00102) - SB 72-0156
The fan hub module contains:
•
Fan hub frame (10-400 , 72-25-00) (SIN 84000)
•
Fan hub frame (10-401 , 72-25-00) (SIN 84000) - SB 72-0156
•
Fan hub frame (10-402 , 72-25-00) (SIN 84000) - SB 72-0156.
C.The No. 1 bearing assembly (01100) is in a storage stand.
D.Make sure that personnel read this procedure and know the step-by-step instructions and special tool usage before they install the No. 1 bearing assembly.
E.Make sure that there is no foreign material in the engine or on the engine parts.
F.Make sure that all parts are serviceable before they are installed.
G.Make sure that the No. 1 bearing assembly, the HPC assembly, and the HPT module, and assembled engine have the correct support at all times to prevent injury to personnel or damage to engine parts.
WARNING:
STODDARD SOLVENT IS TOXIC. USE PERSONAL PROTECTION EQUIPMENT.
WARNING:
ISOPROPYL ALCOHOL IS TOXIC AND FLAMMABLE. USE PERSONAL PROTECTION EQUIPMENT. USE IN A WELL-VENTILATED AREA.
H.Make sure that all mating surfaces are clean before you assemble the parts. If necessary, clean the parts with C04-002  Stoddard solvent, C04-035  isopropyl alcohol, or a 50-50 blend of C04-014  denatured alcohol and C04-035  isopropyl alcohol.
I.This assembly contains critical areas of the shaft, that require caution and visual inspection during the assembly process, that are identified throughout this procedure. Refer to Figure 402.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools.
 
Tool No.
Description
 
9C2352G01
Set Guide Pins (guide pins)
 
11C3044G01
Adapter Assembly, Overhead Support - Engine Modules (adapter assembly)
 
11C3151G02
Fixture, Lift & Turn - No. 1 Bearing Support Housing (lift and turn fixture)
 
11C3166G04
Fixture, Install/Remove Seal Rotating, No. 1 Bearing (install seal fixture)
 
11C3204G02
Adapter, Torque Locknut, No. 1 Bearing (torque adapter)
 
11C3289P01
No. 1 Bearing Assembly Guide (No. 1 bearing guide)
 
11C3381G01
Guide, No. 1 Bearing Carbon Seal (seal guide)
 
11C3411G02
Fixture, Install, No. 1 Bearing Carbon Seal (installation fixture)
 
11C3428G01
Fixture, Test - Carbon Seal - No. 1 Bearing (test fixture)
 
11C3440G01
Fixture, Pusher/Puller Carbon Seal No. 1 Bearing (carbon seal fixture)
 
11C3455G01
Fixture, Alignment Tube No. 1 Bearing Oil Supply (alignment tool)
 
9429M77G04
Fixture, Lift and Turn - General Purpose (lift/turn fixture)
(2)Standard Tools and Equipment.
 
Description
Manufacturer
 
Customer Overhead Rail System
Locally Used
 
Gun, Heat
Local Purchase
 
Gloves, Thermal
Local Purchase
 
Hydraulic Torque Multiplier, Model AH-2043 (torque multiplier)
Advance Mfg Co. Turnpike Industrial Park Westfield, MA 01085
 
Oven, Parts
Local Purchase
 
Tape, Heat
Local Purchase
(3)Locally Manufactured Tools. None.
B.Consumable Materials.
 
Code No.
Description
 
C02-019
Oil, Engine Lubricating (GE SPEC. D50TF1) (engine oil)
 
C02-023
Oil, Engine Lubricating (MIL-PRF-23699) (engine oil)
 
C02-058
Compound, Thread Lubricating (lubricant)
 
C04-002
Solvent, General (Stoddard solvent)
 
C04-014
Solvent, General (denatured alcohol)
 
C04-035
Solvent, General (isopropyl alcohol)
 
C10-071
Safety Wire, 0.020 or 0.032 in. dia. (safety wire)
 
C10-140
Gloves, Film Latex or Nylon/Polyethylene, Disposable (gloves)
 
C10-143
Safety Cable Assembly (321 Stainless Steel AS 4536, AS 3510) (safety cable)
C.Referenced Procedures.
 
ATA No.
Description
 
72-00-22
Installation 001
 
72-00-24
Installation 001
 
72-00-24
Inspection 001
D.Expendable Parts.
 
CSN
Description
 
20-160, 72-00-02
Packing
 
20-180, 72-00-02
Packing
 
20-270, 72-00-02
Packing
 
01-040, 77-31-10
Preformed Packing
 
01-050, 77-31-10
Preformed Packing
 
40-070, 79-22-10
Packing
 
40-100, 79-22-10
Packing
* * * FOR ALL
Figure 401   Installation of the No. 1 Bearing Assembly
3 . Procedure.
Subtask 72-00-23-420-001
CAUTION:
THIS ASSEMBLY IS A CRITICAL PROCESS. PROPER USE OF PROTECTIVE TOOLING AND POST ASSEMBLY INSPECTION OF FORWARD FAN SHAFT MUST BE COMPLETED PER REQUIREMENTS OF THE ENGINE MANUAL TO MAKE SURE NO DAMAGE HAS BEEN CAUSED BY THE ASSEMBLY PROCESS OR TOOLING.
A.Prepare the fan hub frame (FHF) and No. 2 bearing assembly (20-030 , 72-00-02) (SIN 01200) to receive the No. 1 bearing assembly (20-020 , 72-00-02) (SIN 01100) as follows.
(1)Make sure that the areas that follow are free from foreign material and high metal:
•
The forward threaded end of the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002)
•
The mating flange on the fan hub module where the No. 1 bearing assembly will be installed.
WARNING:
ISOPROPYL ALCOHOL IS TOXIC AND FLAMMABLE. USE PERSONAL PROTECTION EQUIPMENT. USE IN A WELL-VENTILATED AREA.
(2)If necessary, clean the threaded end or the mating flange with a 50-50 blend of C04-014  denatured alcohol and C04-035  isopropyl alcohol.
(3)Locate the 11C3289   No. 1 bearing guide. Use your hand and carefully thread the No. 1 bearing guide on the forward fan shaft of the fan hub module. Refer to Figure 403.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
CAUTION:
DO NOT TOUCH THE BEARING COMPONENTS WITH BARE HANDS. SKIN OILS AND SALT CAN CAUSE CORROSION. USE CLEAN C10-140 LATEX GLOVES WHEN YOU TOUCH THE BEARING COMPONENTS.
(4)Apply a light coat of C02-019  engine oil or C02-023  engine oil to the exposed area of the No. 1 bearing inner race (bearing) (011A0), and the outer surface of the 11C3289   No. 1 bearing guide.
(5)Install the guide pins (item 2) of the 9C2352   guide pins in boltholes of the forward flange of the fan hub frame (FHF) at equally-spaced locations.
NOTE:
Do not install guide pins (item 2) near the 3:00 o'clock and 9:00 o'clock positions. Guide pins can interfere with tools installation.
WARNING:
LUBRICATING OILS CAN CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(6)Lubricate the No. 1 bearing aft seal gasket (aft seal gasket) (84050) with C02-023  engine oil.
  (7)Make sure the aft seal gasket (20-260 , 72-00-02) (SIN 84050) is correctly aligned for installation. The side of the aft seal gasket with a small machined groove near the inner diameter points forward (the part identification number is also on the forward face). Make sure the notches in the aft seal gasket are aligned with the tube holes in the fan hub module.
(8)Install the aft seal gasket over the guide pins and on the FHF flange.
Subtask 72-00-23-220-004
(9)Do a general visual inspection of the exposed surfaces of the forward fan shaft for nicks, dents and scratches, after the removal of tooling. Refer to TASK 72-00-24-200-801 (72-00-24, INSPECTION 001) and Figure 402.
* * * FOR ALL
Figure 402   Fan Forward Shaft
* * * FOR ALL
Figure 403   (Sheet 1 ) Installation of the No. 1 Bearing Guide 11C3289 and Aft Seal Gasket
* * * FOR ALL
Figure 403   (Sheet 2 ) Installation of the No. 1 Bearing Guide 11C3289 and Aft Seal Gasket
Subtask 72-00-23-420-003
B.If necessary, install the 11C3151   lift and turn fixture and the 9429M77   lift/turn fixture on the No. 1 bearing assembly (00110) as follows. Refer to Figure 404.
(1)Put the left support (item 3) at the 3:00 o'clock position forward looking aft (FLA) and the right support (item 2) at the 9:00 o'clock position FLA on the housing, between the forward and aft flanges.
NOTE:
The part number and serial number are located at the 12:00 o'clock position (top vertical center line) of the housing.
(2)Align the locating pins of each support with the forward flange boltholes of the No. 1 bearing support housing (housing) (84001).
(3)Tighten the thumb screw (item 4) of each support to engage the spring pin (item 10) in the aft flange boltholes of the housing.
CAUTION:
MAKE SURE THAT THE TRUNNIONS (ITEM 12) ARE IN THE CORRECT POSITION OR THE HOUSING WILL NOT SAFELY ROTATE IN THE 11C3151 LIFT AND TURN FIXTURE.
(4)Make sure that the trunnions (item 12) of the 11C3151   lift and turn fixture are aligned with the scribe line WITHOUT BEARING on each support (item 2 and item 3). If necessary adjust the trunnions (item 12) as follows:
(a)Remove the ball-lock pin (item 7) from the right/left support brackets (items 2 and 3).
(b)To lift the housing without the bearing installed, adjust the trunnion to the scribe line marked WITHOUT BEARING on the right/left support brackets (items 2 and 3).
(c)To lift the housing with the bearing installed, adjust the trunnion to the scribe line marked WITH BEARING on the right/left support brackets (items 2 and 3).
(d)Install the ball-lock pin (item 7) in the right/left support brackets (items 2 and 3).
WARNING:
ALWAYS USE APPROVED EQUIPMENT AND PROCEDURES TO LIFT PARTS. STAY OUT FROM BELOW LOADS. IF THE PARTS ACCIDENTALLY MOVE OR FALL, THEY CAN CAUSE AN INJURY OR KILL YOU.
(5)Attach an overhead hoist to the 9429M77   lift/turn fixture.
(6)Attach the 9429M77   lift/turn fixture to the 11C3151   lift and turn fixture as follows:
(a)Attach the hoist assemblies (item 24) to the lift bar (item 23) with the shackles (item 27). Make sure each hoist assembly is the same number of holes from the centerline of the lift bar to keep the 9429M77   lift/turn fixture balanced. Make sure the hoist assemblies are perpendicular to the lift bar after they are connected to the trunnions of the 11C3151   lift/turn fixture.
(b)Attach the lock plate adapters (item 13) to the hoist assemblies (item 24) with the turnbuckle (item 28).
(c)Open the latch (item 14) and install the lock plate adapters (item 13) on the trunnions of the 11C3151   lift/turn fixture.
(d)Close the latch (item 14) on the trunnions of the 11C3151   lift/turn fixture and insert the release pin (item 19) through the trunnion and the lock plate adapters (item 13).
CAUTION:
MAKE SURE THAT THE TRUNNIONS (ITEM 12) ARE IN THE CORRECT POSITION OR THE HOUSING WILL NOT SAFELY ROTATE IN THE 11C3151 LIFT AND TURN FIXTURE.
(7)Make sure that the trunnions (item 12) of the 11C3151   lift and turn fixture are aligned with the scribe line WITH BEARING on each of the support brackets (item 2 and item 3). If necessary, adjust the trunnions (item 12) as follows:
(a)Remove the ball-lock pin (item 7) from the left/right support brackets (items 2 and 3).
(b)To lift the housing without the bearing installed, adjust the trunnion to the scribe line WITHOUT BEARING on the left/right support brackets (items 2 and 3).
(c)To lift the housing with the bearing installed, adjust the trunnion to the scribe line WITH BEARING on the left/right support brackets (items 2 and 3).
(d)Install the ball-lock pin (item 7) in the left/right support brackets (items 2 and 3).
* * * FOR ALL
Figure 404   (Sheet 1 ) Installation of 11C3151 Lift and Turn Fixture and 9429M77 Lift/Turn Fixture
* * * FOR ALL
Figure 404   (Sheet 2 ) Installation of 11C3151 Lift and Turn Fixture and 9429M77 Lift/Turn Fixture
* * * FOR ALL
Figure 404   (Sheet 3 ) Installation of 11C3151 Lift and Turn Fixture and 9429M77 lift/turn fixture
Subtask 72-00-23-420-004
C.Prepare the No. 1 bearing assembly (01100) for installation as follows:
CAUTION:
KEEP ROLLER BEARING COMPONENTS (ROLLERS, CAGES, INNER RACES, AND OUTER RACES) AS A SET BY SERIAL NUMBER. BEARINGS ARE MATCHED ASSEMBLIES. DO NOT MIX SERVICEABLE BEARING COMPONENTS WITH COMPONENTS WITH DIFFERENT SERIAL NUMBERS. BEARING COMPONENTS THAT ARE MIXED WITH DIFFERENT SERIAL NUMBERS CAN RESULT IN ENGINE FAILURE.
CAUTION:
DO NOT TOUCH THE BEARING COMPONENTS WITH BARE HANDS. SKIN OILS AND SALT CAN CAUSE CORROSION. USE CLEAN C10-140  LATEX GLOVES WHEN YOU TOUCH THE BEARING COMPONENTS.
(1)Make sure that the serial numbers on the inner and outer races of the No. 1 bearing assembly are a matched set. The inner race is installed on the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002) of the No. 2 bearing assembly (20-030 , 72-00-02) (SIN 01200). Refer to Figure 403.
WARNING:
STODDARD SOLVENT IS TOXIC. USE PERSONAL PROTECTION EQUIPMENT.
WARNING:
ISOPROPYL ALCOHOL IS TOXIC AND FLAMMABLE. USE PERSONAL PROTECTION EQUIPMENT. USE IN A WELL-VENTILATED AREA.
(2)Clean the mating surfaces of the bearing (011A0) with C04-002  Stoddard solvent, or a 50-50 blend of C04-014  denatured alcohol and C04-035  isopropyl alcohol. Make sure that the surfaces have no foreign material and no high metal.
(3)Use the 11C3455   alignment fixture to do a check of the alignment between the male end of the oil supply tube (442A4) and the female end of the oil supply tube (442A2) as follows. Refer to Figure 405.
(a)Put the 11C3455   alignment fixture on the FHF.
(b)Make sure that the female end of the weldment (item 4) is correctly installed on the male end of the oil supply tube (442A4).
(c)Make sure that the locating pins (item 3) in the block (item 2) engage with the threaded inserts in the FHF.
(d)Tighten two socket head cap screws (item 7) in the plate (item 5) to lock the weldment (item 4) in place.
(e)Remove the alignment fixture from the FHF.
(f)Loosen two bolts (442F3) to release the oil supply tube (442A2).
CAUTION:
DO NOT DEFLECT THE OIL SUPPLY TUBE MORE THAN 0.160 INCH (4.06 MM) FROM THE FREE STATE CONDITION WHEN YOU INSTALL IT.
(g)Put the 11C3455   alignment fixture on the housing (84001).
(h)Make sure that the male end of the weldment (item 4) engages the female end of the oil supply tube (442A2)
(i)Make sure that the locating pins (item 6) in the block (item 2) engage the clearance holes in the housing (84001).
(j)Torque two bolts (442F3) to 60-70 lb in. (6.8-7.9 N.m) to attach the oil supply tube (442A2) in place.
(k)Remove the alignment fixture from the housing (84001).
* * * FOR ALL
Figure 405   (Sheet 1 ) Installation of the Alignment Fixture, 11C3455
* * * FOR ALL
Figure 405   (Sheet 2 ) Installation of the Alignment Fixture, 11C3455
* * * FOR ALL
Figure 405   (Sheet 3 ) Installation of the Alignment Fixture, 11C3455
Subtask 72-00-23-420-024
D.Install the packing (20-270 , 72-00-02) (SIN 442N0) for the No. 1 bearing lube system as follows. Refer to Figure 406.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(1)Find the oil supply tube (10-130 , 72-25-00) (SIN 442A4) approximately at the 8 o'clock position FLA on the FHF. Lubricate the packing with C02-019  engine oil or C02-023  engine oil and install it on the oil supply tube.
(2)Lubricate the inside chamfer on the aft end of the oil supply tube (442A2) inside of the No. 1 bearing assembly (01100) with C02-023  engine oil.
* * * FOR ALL
Figure 406   Installation of the Packing on the Oil Supply Tube
Subtask 72-00-23-420-005
E.Install the No. 1 bearing assembly (01100) as follows. Refer to Figure 407.
WARNING:
WEAR THERMAL GLOVES AT ALL TIMES WHEN YOU HANDLE OR TOUCH HEATED OR CHILLED PARTS. HEATED OR CHILLED PARTS CAN HURT YOU.
(1)If necessary, use a C10-054  heat gun to heat the aft flange of the No. 1 bearing assembly (01100) to a maximum temperature of 250°F (121°C) to help attach it to the forward flange of the fan hub module.
WARNING:
ALWAYS USE APPROVED EQUIPMENT AND PROCEDURES TO LIFT PARTS. STAY OUT FROM BELOW LOADS. IF PARTS ACCIDENTALLY MOVE OR FALL, THEY CAN CAUSE AN INJURY OR KILL YOU.
(2)Use a hoist and lift the No. 1 bearing assembly (20-020 , 72-00-02) (SIN 01100) and set it to the horizontal position. Align it in front of the fan hub module and the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002).
(3)Use visual indicators to make sure that the No. 1 bearing assembly is in alignment with the fan hub module as follows:
•
The boltholes around the perimeter of the housing (84001) aft flange are in alignment with the 9C2352   guide pins, and
•
The oil supply tube (01-140 , 72-23-00) (SIN 442A2) inside the housing is aligned with the oil supply tube (10-130 , 72-25-00) (SIN 442A4) on the fan hub module. Slight bending of the oil supply tube (01-140 , 72-23-00) (SIN 442A2) inside the housing is permitted to obtain the correct connection of the oil supply tubes.
(4)Push the No. 1 bearing assembly AFT and over the 9C2352   guide pins and against the aft seal gasket (84050). Make sure that the oil supply tube (442A2) inside the No. 1 bearing assembly makes contact with the oil supply tube (442A4) on the fan hub module.
* * * FOR ALL
Figure 407   Installation of the No. 1 Bearing Assembly
Subtask 72-00-23-420-006
CAUTION:
THIS ASSEMBLY IS A CRITICAL PROCESS. PROPER USE OF PROTECTIVE TOOLING AND POST ASSEMBLY INSPECTION OF FORWARD FAN SHAFT MUST BE COMPLETED PER REQUIREMENTS OF THE ENGINE MANUAL TO MAKE SURE NO DAMAGE HAS BEEN CAUSED BY THE ASSEMBLY PROCESS OR TOOLING.
F.Attach the No. 1 bearing assembly (01100) as follows. Refer to Figure 407.
(1)Apply C02-058  lubricant to the threads and friction surfaces of 70 bolts (84020).
WARNING:
WEAR THERMAL GLOVES AT ALL TIMES WHEN YOU HANDLE OR TOUCH HEATED OR CHILLED PARTS. HEATED OR CHILLED PARTS CAN HURT YOU.
(2)If the aft flange of the No. 1 bearing assembly was heated, wear thermal gloves while you install and tighten the bolts.
(3)Attach the No. 1 bearing assembly to the fan hub module with the bolts (20-250 , 72-00-02) (SIN 84020) in the open boltholes on the aft flange of the No. 1 bearing assembly. Tighten the bolts but do not torque them.
(4)Remove the 9C2352   guide pins from the fan hub module.
(5)Remove the 9429M77   lift/turn fixture from the 11C3151   lift and turn fixture.
(6)Remove the 11C3151   lift and turn fixture from the No. 1 bearing assembly.
(7)Install the remaining bolts (84020) in the No. 1 bearing assembly aft flange. Tighten the bolts but do not torque them.
(8)Use your hand to smoothly un-thread the 11C3289   No. 1 bearing guide from the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002).
Subtask 72-00-23-420-007
(1)If the aft flange of the No. 1 bearing assembly was heated, let the temperature of the No. 1 bearing assembly decrease to ambient temperature.
(2)Torque every 8th equally-spaced bolt (84020) in a criss-cross pattern to 430-502 lb in. (48.6-56.7 N.m).
(3)Torque all bolts (84020) in a criss-cross pattern to a final torque of 552-648 lb in. (62.4-73.2 N.m).
Subtask 72-00-23-220-005
(4)Do a general visual inspection of the exposed surfaces of the forward fan shaft for nicks, dents and scratches, after the removal of tooling. Refer to TASK 72-00-24-200-801 (72-00-24, INSPECTION 001) and Figure 402
Subtask 72-00-23-420-008
CAUTION:
THIS ASSEMBLY IS A CRITICAL PROCESS. PROPER USE OF PROTECTIVE TOOLING AND POST ASSEMBLY INSPECTION OF FORWARD FAN SHAFT MUST BE COMPLETED PER REQUIREMENTS OF THE ENGINE MANUAL TO MAKE SURE NO DAMAGE HAS BEEN CAUSED BY THE ASSEMBLY PROCESS OR TOOLING.
G.Install the No. 1 bearing seal mating ring (mating ring) (011A5) as follows. Refer to Figure 408.
WARNING:
WEAR THERMAL GLOVES AT ALL TIMES WHEN YOU HANDLE OR TOUCH HEATED OR CHILLED PARTS. HEATED OR CHILLED PARTS CAN HURT YOU.
(1)Increase the temperature of the mating ring in an oven to 300 to 350°F (149 to 177°C).
(2)Install the reaction plate (item 3) of the 11C3166   install seal fixture on the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002) and tighten the hook clamps (item 23) to attach it.
(3)Put the heated mating ring on the forward end of the forward fan shaft and seat it against the bearing (011A0). Make sure that the carbon segments of the No. 1 bearing carbon seal (carbon seal) (011A7) are larger in diameter than the sealing surface of the heated mating ring.
(4)Install the weldment (item 2) as follows:
(a)Align the slots in the outside lip of the frame with the inside diameter tabs of the mating ring.
(b)Push the frame fully against the mating ring and rotate approximately 30 degrees to engage the tabs on the frame.
(c)Install the stud (item 20) through the frame and attach it to the reaction plate (item 3) with the hex nut (item 4).
(d)Screw on the handle (item 21) down the stud (item 20) until the handle connects against the weldment (item 2).
(5)Turn the handle (item 21) to push the reaction plate (item 3) and seat the mating ring against the bearing.
(6)Let the temperature of the mating ring decrease to ambient temperature and release the handle (item 21) pressure. Remove the 11C3166   install seal fixture.
(7)Make sure that the mating ring is fully seated. Try to insert a 0.001 inch (0.03 mm) shim between the mating ring and the bearing inner race. Refer to Figure 409.
Subtask 72-00-23-220-006
(8)Do a general visual inspection of the exposed surfaces of the forward fan shaft for nicks, dents and scratches, after the removal of tooling. Refer to TASK 72-00-24-200-801 (72-00-24, INSPECTION 001) and Figure 402.
* * * FOR ALL
Figure 408   Installation of the Mating Ring on the 11C3166 Install Seal Fixture
* * * FOR ALL
Figure 409   Dimensional Check of the Mating Ring and Installation of the Bearing Nut
Subtask 72-00-23-420-009
CAUTION:
THIS ASSEMBLY IS A CRITICAL PROCESS. PROPER USE OF PROTECTIVE TOOLING AND POST ASSEMBLY INSPECTION OF FORWARD FAN SHAFT MUST BE COMPLETED PER REQUIREMENTS OF THE ENGINE MANUAL TO MAKE SURE NO DAMAGE HAS BEEN CAUSED BY THE ASSEMBLY PROCESS OR TOOLING.
H.Install the No. 1 bearing nut (bearing nut) (011A1) as follows. Refer to Figure 409.
WARNING:
ISOPROPYL ALCOHOL IS TOXIC AND FLAMMABLE. USE PERSONAL PROTECTION EQUIPMENT. USE IN A WELL-VENTILATED AREA.
(1)Use a 50-50 blend of C04-014  denatured alcohol and C04-035  isopropyl alcohol to clean the threads on the forward end of the No. 2 bearing assembly (01200) and the bearing nut.
(2)Coat the threads and the mating face of the bearing nut and the threads on the forward end of the No. 2 bearing assembly with C02-058  lubricant.
(3)Use your hand to smoothly thread the bearing nut on the forward end of the No. 2 bearing assembly as far as possible.
(4)Install the 11C3204   torque adapter on the bearing nut as follows. Refer to Figure 410.
(a)Align the locating pins on the support plate (item 3) of the 11C3204   torque adapter with the holes in the forward fan shaft (01-170 , 72-24-00) (SIN 81002) or (01-171 , 72-24-00) (SIN 81002).
(b)Turn the knurled knob (item 18) and attach the support plate (item 3) with three clamps (item 4).
(c)Assemble the base (item 6) on the studs (item 11) of the split ring (item 7). Turn the base until it engages the wrench slots of the bearing nut. Attach the base to the split ring with two nuts (item 12).
(d)Install a torque multiplier over the spline shaft (item 8) and turn until the pins on the torque multiplier engage the bushings on the base (item 6).
(5)Use the torque multiplier to torque the bearing nut (011A1) to 5100 lb ft. (6914.7 N.m).
(6)Loosen the bearing nut to break the torque and then re-torque to 1700 lb ft. (2304.9 N.m).
(7)Increase the torque as required to allow installation of the spring clips. The final torque must not be more than 2800 lb ft. (3796.3 N.m).
(8)Install the anti-rotation spring clips (spring clips) (011W1) as follows. Refer to Figure 411.
CAUTION:
THE SPRING CLIPS ARE MADE WITH A BOW. THE SPRING CLIPS MUST BE INSTALLED SO IT IS IN ITS FREE STATE (NOT RESTRAINED BY RETAINING RING). THE BOW PUTS THE ENDS OF THE SPRING CLIP IN THE FORWARD POSITION.
(a)Install two spring clips, 180 degrees apart and engage the castellations in the bearing nut (011A1).
(b)Install the retaining ring (011W0) inside the bearing nut (011A1) to secure the spring clips.
(9)Remove the 11C3204   torque adapter as follows:
(a)Loosen the two nuts (item 12) that attach the split ring (item 7) to the base (item 6). Remove the base (item 6).
(b)Turn the knurled knob (item 18) and disengage the three clamps (item 4) that attach the support plate (item 3) to the forward fan shaft. Remove the support plate (item 3).
Subtask 72-00-23-220-007
(10)Do a general visual inspection of the exposed surfaces of the forward fan shaft for nicks, dents and scratches, after the removal of tooling. Refer to TASK 72-00-24-200-801 (72-00-24, INSPECTION 001) and Figure 402.
* * * FOR ALL
Figure 410   Installation of the 11C3204 Torque Adapter
* * * FOR ALL
Figure 411   Installation of Spring Clips and Retaining Ring
Subtask 72-00-23-420-010
* * * PRE SB   79-0006( Scavenge Oil Tube with One Cushioned Loop Clamp )
I.Install the scavenge oil tube (40-020 , 79-22-10) (SIN 451A0) as follows. Refer to Figure 412.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(1)Use C02-019  engine oil or C02-023  engine oil to lubricate two packings (40-070 , 79-22-10) (SIN 451N0) and the internal chamfers on the two ends of the scavenge oil tube. Install one packing on each end of the scavenge oil tube.
(2)Insert the aft end of the scavenge oil tube into the fan hub module approximately at the 6:00 o'clock position FLA with bolts and clamps.
(3)Attach the center section of the scavenge oil tube to the housing (84001) with two bolts (451F1) and a scavenge loop clamp (40-090 , 79-22-10) (SIN 451V0). Let the forward end of the scavenge oil tube loose at this time.
(4)Torque the bolt (451F1) installed in the scavenge loop clamp (40-090 , 79-22-10) (SIN 451V0) to 60-70 lb in. (6.8-7.9 N.m).
(5)Torque the remaining bolt (451F1) to 106-124 lb in. (12.0-14.0 N.m).
* * * END PRE SB   79-0006
Subtask 72-00-23-420-025
* * * SB   79-0006( Scavenge Oil Tube with Two Cushioned Loop Clamps )
I.A.Install the scavenge oil tube (40-021 , 79-22-10) (SIN 451A0) as follows. Refer to Figure 412A.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(1)Use C02-019  engine oil or C02-023  engine oil to lubricate two packings (40-070 , 79-22-10) (SIN 451N0) and the internal chamfers on the two ends of the scavenge oil tube. Install one packing on each end of the scavenge oil tube.
(2)Insert the aft end of the scavenge oil tube into the fan hub module approximately at the 6:00 o'clock position FLA.
(3)Attach the center section of the scavenge oil tube to the housing (84001) with two bolts (451F1) and two scavenge loop clamp (40-090A , 79-22-10) (SIN 451V0). Let the forward end of the scavenge oil tube loose at this time.
(4)Torque the bolts (451F1) installed in the scavenge loop clamps (40-090A , 79-22-10) (SIN 451V0) to 60-70 lb in. (6.8-7.9 N.m).
* * * END SB   79-0006
* * * FOR ALL
* * * PRE SB   79-0006( Scavenge Oil Tube with One Cushioned Loop Clamp )
Figure 412   Installation of the Scavenge Oil Tube
* * * FOR ALL
* * * SB   79-0006( Scavenge Oil Tube with Two Cushioned Loop Clamp )
Figure 412A   Installation of the Scavenge Oil Tube
Subtask 72-00-23-420-019
CAUTION:
THIS ASSEMBLY IS A CRITICAL PROCESS. PROPER USE OF PROTECTIVE TOOLING AND POST ASSEMBLY INSPECTION OF FORWARD FAN SHAFT MUST BE COMPLETED PER REQUIREMENTS OF THE ENGINE MANUAL TO MAKE SURE NO DAMAGE HAS BEEN CAUSED BY THE ASSEMBLY PROCESS OR TOOLING.
J.Install the No. 1 bearing carbon seal support (seal support) (011A3) as follows. Refer to Figure 413.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(1)Use C02-019  engine oil or C02-023  engine oil to lubricate the packing (20-180 , 72-00-02) (SIN 011N3). Install the packing into the groove on the aft side of the outer surface of the carbon seal (011A7).
WARNING:
USE THERMAL GLOVES WHEN YOU MOVE OR TOUCH HOT OR COLD PARTS. HOT OR COLD PARTS CAN CAUSE INJURY.
(2)Use a parts oven to heat the seal support to a maximum of 250°F (121°C).
NOTE:
The temperature of the seal support must be a minimum of 150°F (65°C) when installed.
(3)Install the carbon seal into the seal support with the 11C3440   carbon seal fixture as follows:
(a)Put the seal support aft end down (larger diameter down) into the base (item 2) of the 11C3440   carbon seal fixture.
(b)Put the carbon seal on top of the seal support.
(c)Make sure that the tab at 12:00 o'clock on the carbon seal is aligned with the notch at 12:00 o'clock on the seal support.
(d)Install the pusher plate (item 4) lip side down on top of the carbon seal.
(e)Thread the hand knob (item 5) on the fixture base stud and tighten it against the pusher plate until the carbon seal is seated on the seal support.
(f)Remove the hand knob and pusher plate from the seal support and remove the seal support assembly from the base of the seal fixture.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE, AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. UTILIZE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF CONTACT OCCURS, FLUSH AFFECTED AREAS WITH WATER.
(g)Apply C02-019   engine oil or C02-023   engine oil to the inner diameter surface of the carbon seal (011A7).
(h)If the carbon seal assembly is used or overhauled, make sure the carbon seal is free to move when the segments are lightly pushed. Make sure that they return to their original position.
WARNING:
STODDARD SOLVENT IS TOXIC. USE PERSONAL PROTECTION EQUIPMENT.
(i)If the segments do not return to their original position, clean the carbon seal assembly with C04-002   Stoddard solvent. Refer to TASK 72-23-04-100-801 (72-23-04, CLEANING 001).
(4)Install the No. 1 bearing seal drain (drain plate) (011A6) as follows. Refer to Figure 414.
(a)Install the packing (20-160 , 72-00-02) (SIN 011N4) onto the seal support.
(b)Align the eight holes in the drain plate with eight of the 16 holes on the seal support.
(c)Attach the drain plate with eight bolts (011F2) and nuts (011K2), boltheads pointing forward.
(d)Torque the nuts (011K2) in a criss-cross pattern to 106-124 lb in. (12.0-14.0 N.m).
(e)Torque again the nuts (011K2) in a circular pattern to 106-124 lb in. (12.0-14.0 N.m).
(5)Install the seal support to the engine as follows. Refer to Figure 415.
NOTE:
Because of the assembly stack variation, a normal assembly can have a small distance (approximately 0.015 inch (0.38 mm) or less) between the drain plate (20-150 , 72-00-02) (SIN 011A6) and seal support (20-220 , 72-00-02) (SIN 011A3). But a larger distance (such as 0.030 inch (0.76 mm) or more) can be an indication that the packing (20-160 , 72-00-02) (SIN 011N4) has rolled out of the groove into the seal support (20-220 , 72-00-02) (SIN 011A3) and the installation must be checked and corrected as needed.
(a)Install the 11C3381   seal guide onto the forward end of the mating ring (011A5). Refer to Figure 416.
1Align the six cutouts in the plate (item 2) with the six tabs on the mating ring.
NOTE:
The heads of the six screws (item 4) on the top of the 11C3381   seal guide are in line with the cutouts and can be used as an alignment aid for tool installation.
2Push down and engage the clamp ring lip into the mating ring grove and rotate approximately 30 degrees in either direction to lock the oil seal tabs between the nylon guide and clamp ring.
3Secure in place with the six screws (item 4).
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE, AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. UTILIZE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF CONTACT OCCURS, FLUSH AFFECTED AREAS WITH WATER.
4Apply C02-019   engine oil or C02-023   engine oil to the carbon seal running surface of the mating ring (011A5), and the outer surface of the 11C3381   seal guide.
(b)Attach the 11C3411   installation fixture to the seal support.
NOTE:
The handles of the 11C3411   installation fixture are 180 degrees opposite each other, but they are not on the horizontal centerline of the seal support.
WARNING:
USE THERMAL GLOVES WHEN YOU MOVE OR TOUCH HOT OR COLD PARTS. HOT OR COLD PARTS CAN CAUSE INJURY.
CAUTION:
DO NOT USE A PARTS OVEN OR A HEAT GUN TO HEAT THE SEAL SUPPORT. DAMAGE TO THE PART CAN OCCUR.
(c)Use heat tape to heat only the aft flange of the seal support to 150-250°F (66-121°C).
(d)Align the large tab on the FWD No. 1 bearing seal gasket (seal gasket) (011N0) with the large tab on the No. 1 bearing housing and put the seal gasket (011N0) over the forward outer diameter of the housing (84001).
(e)Hold the handles of the 11C3411   installation fixture and align the scavenge tube at the 6:00 o'clock position on the seal support assembly with the scavenge oil tube (40-020 , 79-22-10) (SIN 451A0) or (40-021 , 79-22-10) (SIN 451A0) at the 6:00 o'clock position on the housing.
CAUTION:
DO NOT APPLY FORCE TO THE NOSE OF THE CARBON SEAL OR THE CARBON ELEMENT DURING ASSEMBLY. DAMAGE TO THE PARTS CAN OCCUR.
(f)Push the handles on the 11C3411   installation fixture to install the seal support assembly on the housing (84001) and fully seat it.
(6)Attach the seal support assembly to the housing as follows:
(a)Install two bolts (011F3) on the large tab and one bolt (011F3) at the 6:15 o'clock position of the seal support assembly. Install the remaining 15 bolts (011F1) and 18 nuts (011K3), boltheads aft. Hand tighten the bolts.
(b)Remove the 11C3411   installation fixture from the seal support and install the remaining bolts (011F1 or O11F3), boltheads pointing aft. Hand tighten the bolts.
(c)Torque the nuts (011K3) in a criss-cross pattern to 106-124 lb in. (12.0-14.0 N.m).
(d)Torque the nuts (011K3) in a circular pattern to 106-124 lb in. (12.0-14.0 N.m).
(e)Loosen the six screws (item 4) and remove the 11C3381   seal guide from the forward end of the mating ring.
Subtask 72-00-23-220-008
(7)Do a general visual inspection of the exposed surfaces of the forward fan shaft for nicks, dents and scratches, after the removal of tooling. Refer to TASK 72-00-24-200-801 (72-00-24, INSPECTION 001) and Figure 402.
* * * FOR ALL
Figure 413   Installation of the No. 1 Bearing Carbon Seal
* * * FOR ALL
Figure 414   Installation of the No. 1 Bearing Drain Plate
* * * FOR ALL
Figure 415   Installation of the No. 1 Bearing Carbon Seal Support to the Housing
* * * FOR ALL
Figure 416   Installation of the 11C3381 Seal Guide
Subtask 72-00-23-780-001
K.Do a flow check of the No. 1 bearing carbon seal as follows. Refer to Figure 417.
(1)Install the 11C3428   test fixture on the carbon seal and on the seal drain at the 6:00 o'clock position.
(2)Attach the test fixture with eight nuts (item 9) and capscrews (item 10) and install a cap onto the drain at the 6:00 o'clock position.
(3)Attach an air line to the swivel fitting on the 11C3428   test fixture.
(4)Pressurize the cavity to 9.5-10.5 psig (65.5-72.3 kPa). The flow must not be more than 2.5 SCFM (70.7 liters/minute).
(5)If carbon seal does not seat, lightly tap the forward face of the 11C3428   test fixture with a nylon faced mallet.
(6)Release the pressure from the 11C3428   test fixture and remove the cap from the drain.
(7)Remove the eight nuts (item 9) and capscrews (item 10) and remove the 11C3428   test fixture from the carbon seal.
* * * FOR ALL
Figure 417   Flow Check Test with the 11C3428 Test Fixture
Subtask 72-00-23-420-022
L.Install the oil drain tube (40-010 , 79-22-10) (SIN 484A0) or (40-010A , 79-22-10) (SIN 484A0) on the outside of the housing (84001) as follows. Refer to Figure 418.
WARNING:
REFER TO THE PRODUCT LABEL AND THE MANUFACTURER’S (MATERIAL) SAFETY DATA SHEET (SDS) FOR INSTRUCTIONS ON THE HAZARDS, STORAGE, SAFE HANDLING AND PROPER USE OF THIS PRODUCT.
(1)Lubricate the packing (40-100 , 79-22-10) (SIN 484N2) with C02-019  engine oil or C02-023  engine oil and install to the end of the oil drain tube.
(2)Lubricate the tube hole in the fan hub module with C02-019  engine oil or C02-023  engine oil and insert the aft end of the oil drain tube into the tube hole in the fan hub module approximately at the 7:00 o'clock position FLA.
(3)Attach the oil drain tube on the fan hub module and housing as follows:
(a)Attach the oil drain tube to the housing with two support spacers (484T1) and two bolts (484F1).
(b)Attach the oil drain tube to the bracket on the scavenge oil tube with a bolt (484F2) and clamp (484V0).
(c)Attach the B-nut at the forward end of the oil drain tube to the carbon seal support.
(4)Torque the bolt (484F2) to 60-70 lb in. (6.8-7.9 N.m).
(5)Torque the two bolts (484F1) to 110-120 lb in. (12.4-13.5 N.m).
(6)Torque B-nut per the following steps:
(a)Torque the B-nut to 265-305 lb in. (29.9-34.4 N.m).
(b)Un-torque the B-nut until the B-nut is loose and then re-apply torque to 265-305 lb in. (29.9-34.4 N.m).
(c)Re-apply a final torque of 265-305 lb in, (29.9-34.4 N.m) to the B-nut.
Subtask 72-00-23-420-026
* * * SB   79-0005( Oil Drain Tube B-nut with Lock-Wire Holes )
(7)Safety the B-nut with C10-071  safety wire or C10-143  safety cable.
NOTE:
PRE SB 79-0005 does not require to safety the B-nut.
* * * END SB   79-0005
* * * FOR ALL
Figure 418   Installation of the Oil Drain Tube
Subtask 72-00-23-420-011
M.Install the No. 1 bearing accelerometer (66A00) as follows. Refer to Figure 419.
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
CAUTION:
MAKE SURE THAT THE PREFORMED PACKINGS (01-040 , 77-31-10) (SIN 66A50) ARE CORRECTLY LUBRICATED WITH ENGINE OIL TO PREVENT DAMAGE. IT IS EASY TO ROLL, PINCH, NICK, OR CUT THE PREFORMED PACKINGS. BE CAREFUL NOT TO CAUSE DAMAGE TO THE PREFORMED PACKINGS.
(1)Lubricate the two preformed packings (01-040 , 77-31-10) (SIN 66A50) and the two preformed packings (01-050 , 77-31-10) (SIN 66A51) with C02-019   engine oil or C02-023  engine oil. Install the preformed packings on the accelerometer.
(2)Remove two previously installed bolts (011F3) at approximately 3:30 o'clock position FLA from the carbon seal support and the No. 1 bearing support flange.
(3)Route the accelerometer through the fan hub module and loosely attach it to the forward flange of the No. 1 bearing support flange with two bolts.
(4)Attach the aft end of the accelerometer to the fan hub module with a clevis (66A81) and a bolt (66A21).
Subtask 72-00-23-420-027
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * PRE SB   72-0161( Installation of the Bearing Accelerometer - Non-PIP 2 Configuration )
(5)Attach the center section of the accelerometer to the housing (01-010 , 72-23-00) (SIN 84001) with a clamp (01-030 , 77-31-10) (SIN 66A80) and two bolts (01-020 , 77-31-10) (SIN 66A20).
NOTE:
Keep the slack in the S-bend of the accelerometer as it passes through the fan hub module.
* * * END PRE SB   72-0161
Subtask 72-00-23-420-028
* * * FOR ALL PIP 2
* * * SB   72-0161( Installation of the Bearing Accelerometer - PIP 2 Configuration )
(5).A.Attach the center section of the accelerometer to the housing (01-010 , 72-23-00) (SIN 84001) with a clamp (01-030 , 77-31-10) (SIN 66A80) and bolts (01-021 , 77-31-10) (SIN 66A20) and (01-080 , 77-31-10) (SIN 66A27).
NOTE:
Keep the slack in the S-bend of the accelerometer as it passes through the fan hub module.
* * * END SB   72-0161
Subtask 72-00-23-420-029
* * * FOR ALL
(6)Torque the two bolts (011F3) at the forward end of the accelerometer to 106-124 lb in. (12.0-14.0 N.m).
(7)Torque the bolt (66A21) at the aft end of the accelerometer to 106-124 lb in. (12.0-14.0 N.m).
Subtask 72-00-23-420-030
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * PRE SB   72-0161( Installation of the Bearing Accelerometer - Non-PIP 2 Configuration )
(8)Torque the two bolts (01-020 , 77-31-10) (SIN 66A20) in the center of the accelerometer as follows:
(a)Torque the bolt (01-020 , 77-31-10) (SIN 66A20) installed in the clamp (01-030 , 77-31-10) (SIN 66A80) to 60-70 lb in. (6.8-7.9 N.m).
(b)Torque the remaining bolt (01-020 , 77-31-10) (SIN 66A20) to 106-124 lb in. (12.0-14.0 N.m).
* * * END PRE SB   72-0161
Subtask 72-00-23-420-031
* * * FOR ALL PIP 2
* * * SB   72-0161( Installation of the Bearing Accelerometer - PIP 2 Configuration )
(8).A.Torque the bolts (01-021 , 77-31-10) (SIN 66A20) and (01-080 , 77-31-10) (SIN 66A27) in the center of the accelerometer as follows:
(a)Torque the bolt (01-080 , 77-31-10) (SIN 66A27) installed in the clamp (01-030 , 77-31-10) (SIN 66A80) to 60-70 lb in. (6.8-7.9 N.m).
(b)Torque the remaining bolt (01-021 , 77-31-10) (SIN 66A20) to 106-124 lb in. (12.0-14.0 N.m).
* * * END SB   72-0161
Subtask 72-00-23-420-032
* * * FOR ALL
(9)Make sure that the preformed packings (01-040 , 77-31-10) (SIN 66A50) are not pinched or protruded.
* * * FOR ALL
Figure 419   (Sheet 1 ) Installation of the Accelerometers
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * PRE SB   72-0161( Installation of the Bearing Accelerometer - Non-PIP 2 Configuration )
Figure 419   (Sheet 2 ) Installation of the Accelerometers
* * * FOR ALL PIP 2
* * * SB   72-0161( Installation of the Bearing Accelerometer - PIP 2 Configuration )
Figure 419   (Sheet 3 ) Installation of the Accelerometers
Subtask 72-00-23-420-020
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * PRE SB   72-0161( Installation of the Bearing Accelerometer - Non-PIP 2 Configuration )
N. Install the bolts (05-020 , 71-00-01) (SIN 66A22) and (05-030 , 71-00-01) (SIN 66A23). Refer to Figure 419 and do as follows:
(1)Install the bolts (05-020 , 71-00-01) (SIN 66A22) and (05-030 , 71-00-01) (SIN 66A23) to the port on the aft side of the fan hub module.
(2)Torque the bolt (05-020 , 71-00-01) (SIN 66A22) to 106 to 124 lb in. (12.0 to 14.0 Nm).
(3)Torque the bolt (05-030 , 71-00-01) (SIN 66A23) to 175 to 205 lb in. (19.8 to 23.2 Nm).
* * * END PRE SB   72-0161
Subtask 72-00-23-420-033
* * * FOR ALL PIP 2
* * * SB   72-0161( Installation of the Bearing Accelerometer - PIP 2 Configuration )
N.A.Install the bolts (25-560 , 72-00-02) (SIN 66A22) and (25-570 , 72-00-02) (SIN 66A23). Refer to Figure 419 and do as follows:
(1)Install the bolts (25-560 , 72-00-02) (SIN 66A22) and (25-570 , 72-00-02) (SIN 66A23) to the port on the aft side of the fan hub module.
(2)Torque the bolt (25-560 , 72-00-02) (SIN 66A22) to 106 to 124 lb in. (12.0 to 14.0 Nm).
(3)Torque the bolt (25-570 , 72-00-02) (SIN 66A23) to 175 to 205 lb in. (19.8 to 23.2 Nm).
* * * END SB   72-0161 ( )
Subtask 72-00-23-420-023
* * * FOR ALL
O.Continue to assemble the engine. To install the fan booster module. Refer to TASK 72-00-22-420-801 (72-00-22, Installation 001).