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TASK 72-57-00-040-801
1 . General.
A.This procedure gives instructions to disassemble the turbine rear frame (TRF) assembly. Refer to Figure 501.
B.The TRF assembly is installed on the 9429M60   assembly stand. Refer to TASK 72-00-04-030-801 (72-00-04, Disassembly 001) and Figure 502.
C.Protective covers must be installed on spare assemblies only.
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
 
11C3516G02
Bracket Set, Roll-Over Stand - TRF (bracket set)
 
11C3530G02
Fixture, Lift - Vertical LPT Module Components (lift fixture)
 
11C3543G02
Fixture, Buildup - No. 5 Bearing Housing (buildup fixture)
 
11C3589P01
Cover, No. 5 Roller Bearing (No. 5 bearing cover)
 
11C4293G01
Protector - TRF Flow Path (TRF flow path protector)
 
9429M60G02
Stand, Adjustable Roll-Over - Sub Assembly (assembly stand)
 
9429M60G03
Stand, Adjustable, Roll-Over - Sub Assembly (roll-over stand)
NOTE:
Tool 9429M60G03 is an alternative to 9429M60G02.
 
9429M96G01
Assembly, Install/Remove Slide (slide hammer)
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials.
 
Code No.
Description
 
C10-140
Gloves, Film Latex or Nylon/Polyethylene, Disposable (gloves)
C.Referenced Procedures.
 
ATA No.
Description
 
72-00-04
Disassembly 001
D.Expendable Parts. None.
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Figure 501   TRF Assembly
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Figure 502   Installation of the TRF on the Assembly Stand, 9429M60
3 . Procedure.
Subtask 72-57-00-040-016
A.Remove the supply connector tube from the fitting on the tube that extends inboard from the No. 8 strut, and the fitting on the No. 5 bearing support housing as follows. Refer to Figure 503.
NOTE:
The struts are numbered clockwise (CW), aft looking forward (ALF). Strut No. 1 is at the top vertical centerline.
(1)Turn the TRF assembly to the horizontal position with the 9429M60   assembly stand as follows. Refer to Figure 502.
CAUTION:
MAKE SURE THAT THE FLOOR LOCKS REMAIN LOCKED AT ALL TIMES UNLESS YOU MOVE THE ROLL-OVER STAND. THE ROLL-OVER STAND CASTERS DO NOT GIVE SUFFICIENT STABILITY TO PERMIT SAFE WORKING CONDITIONS.
(a)Lower the floor locks (item 69) of the 9429M60   assembly stand until they touch the floor. The floor locks must stay in contact with the floor to prevent movement of the roll-over stand. Make sure that the roll-over stand is level.
CAUTION:
THE LOCATING PIN (ITEM 23) MUST BE ENGAGED IN THE 9429M60   ASSEMBLY STAND WHEN YOU DO WORK ON THE TRF. THE LOCATING PIN (ITEM 23) STOPS ACCIDENTAL ROTATION OF THE TRF.
(b)Move and hold the lever (item 24) of the 9429M60   assembly stand to disengage the locating pin (item 23) from the hole in the locating plate (item 6).
(c)Turn the hand wheel (item 31) to turn the TRF assembly to the horizontal position.
(d)Move the lever (item 24) to engage the locating pin (item 23) with the hole in the locating plate (item 6).
(2)Remove the bolt, nut, and loop clamp that attach the supply connector tube to the bracket.
(3)Remove the safety wire or safety cable from the B-nut of the No. 5 bearing support housing and from the swivel nut on the end of the oil supply tube.
(4)Loosen the B-nuts on the two sides of the oil supply connector tube.
(5)Remove the supply connector tube.
(6)Remove the nuts, washers, bolts, and bracket from the TRF.
Subtask 72-57-00-040-014
B.Remove the supply tube from the No. 8 strut as follows. Refer to Figure 503.
NOTE:
The struts are numbered CW, ALF. Strut No. 1 is at the top vertical centerline.
(1)Remove the self-locking nut (nut) (01-220) (SIN 443K2), washer, bolt, and loop clamp that attach the supply tube to the bracket. Discard the nut.
(2)Remove the bolts that attach the supply tube flange to the TRF.
(3)Remove the supply tube assembly.
(4)Remove the self-locking nut (nut) (01-300) (SIN 443K0), washer, bolt, and bracket from the TRF. Discard the nut.
Subtask 72-57-00-040-020
C.Remove the drain connector tube from the fitting on the tube that extends inboard from the No. 6 strut, and the fitting on the No. 5 bearing support housing. Refer to Figure 503.
NOTE:
The struts are numbered CW, ALF. Strut No. 1 is at the top vertical centerline.
(1)Remove the nut, bolt, and loop clamp that attach the drain connector tube to the bracket.
(2)Remove the safety wire or safety cable from the B-nut of the No. 5 bearing support housing. Remove the swivel nut on the end of the drain tube.
(3)Loosen the B-nut and the swivel nut.
(4)Remove the drain connector tube.
Subtask 72-57-00-030-001
D.Remove the drain tube from the No. 6 strut as follows. Refer to Figure 503.
NOTE:
The struts are numbered CW, ALF. Strut No. 1 is at the top vertical centerline.
(1)Remove the self-locking nut (nut) (01-580) (SIN 458K1), washers, bolt, and loop clamp that attach the drain tube to the bracket. Discard the nut.
(2)Remove the safety wire or safety cable that safety the swivel wire to the swivel nut.
(3)Remove the retaining wire (01-555) (SIN 45898) and the swivel nut from the drain tube. Discard the retaining wire.
NOTE:
Use the 9429M96   slide hammer to remove the retaining wire from the swivel nut.
(4)Remove the bolts that attach the drain tube flange to the TRF.
(5)Remove the drain tube assembly.
(6)Remove the self-locking nut (nut) (01-620) (SIN 458K0), washer, bolt, and bracket from the TRF. Discard the nut.
Subtask 72-57-00-040-015
E.Remove the scavenge connector tube from the fitting on the tube that extends inboard from the No. 7 strut, and the fitting on the No. 5 bearing support housing as follows. Refer to Figure 503.
NOTE:
The struts are numbered CW, ALF. Strut No. 1 is at the top vertical centerline.
(1)Remove the nut, bolt, and loop clamp that attach the scavenge connector tube to the bracket.
(2)Remove the safety wire or safety cable from the B-nut of the No. 5 bearing support housing, and swivel nut on the end of the scavenge connector tube.
(3)Loosen the B-nut and the swivel nut.
(4)Remove the scavenge connector tube.
(5)Remove the bolts and bracket from the TRF.
Subtask 72-57-00-030-002
F.Remove the scavenge tube from the No. 7 strut as follows. Refer to Figure 503.
(1)Remove the self-locking nut (nut) (01-440) (SIN 452K1), washers, bolt, and loop clamp that attach the scavenge tube to the bracket. Discard the nut.
(2)Remove the safety wire or safety cable from swivel wire and from the swivel nut.
(3)Remove the retaining wire (01-365) (SIN 45298) and the swivel nut from the scavenge tube. Discard the retaining wire.
NOTE:
Use the 9429M96   slide hammer to remove the retaining wire from the swivel nut.
(4)Remove the bolts that attach the scavenge tube flange to the TRF.
(5)Remove the scavenge tube assembly.
(6)Remove the self-locking nut (nut) (01-480) (SIN 452K0), washer, bolt, and bracket from the TRF. Discard the nut.
G.Put caps on the open ends of the air eductor tube assembly located at the strut No. 11 in the TRF at the 10:00 o'clock position, ALF. Refer to Figure 503.
Subtask 72-57-00-030-003
H.Deleted.
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Figure 503   (Sheet 1 ) Removal of the Tubes from the TRF Struts
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Figure 503   (Sheet 2 ) Removal of the Tubes from the TRF Struts
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Figure 503   (Sheet 3 ) Removal of the Tubes from the TRF Struts
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Figure 503   (Sheet 4 ) Removal of the Tubes from the TRF Struts
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Figure 503   (Sheet 5 ) Removal of the Tubes from the TRF Struts
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Figure 503   (Sheet 6 ) Removal of the Tubes from the TRF Struts
Subtask 72-57-00-040-009
I.Remove the No. 5 bearing outer stationary seal (outer seal) and inner stationary seal (inner seal) from the No. 5 bearing support housing as follows. Refer to Figure 504.
CAUTION:
MAKE SURE THAT THE TRF ASSEMBLY IS CORRECTLY INSTALLED TO THE 9429M60   ASSEMBLY STAND WITH THE 11C3516   BRACKET SET BEFORE YOU TURN THE TRF ASSEMBLY, OR DAMAGE CAN OCCUR.
(1)Turn the TRF assembly 180 degrees, with the 9429M60   assembly stand, as follows. Refer to Figure 502.
CAUTION:
MAKE SURE THAT THE FLOOR LOCKS REMAIN LOCKED AT ALL TIMES UNLESS YOU MOVE THE ROLL-OVER STAND. THE ROLL-OVER STAND CASTERS DO NOT GIVE SUFFICIENT STABILITY TO PERMIT SAFE WORKING CONDITIONS.
(a)Lower the floor locks (item 69) of the 9429M60   assembly stand until they touch the floor. The floor locks must stay in contact with the floor to prevent movement of the roll-over stand. Make sure that the roll-over stand is level.
CAUTION:
THE LOCATING PIN (ITEM 23) MUST BE ENGAGED IN THE 9429M60   ASSEMBLY STAND WHEN YOU DO WORK ON THE TRF. THE LOCATING PIN (ITEM 23) STOPS ACCIDENTAL ROTATION OF THE TRF.
(b)Move and hold the lever (item 24) of the 9429M60   assembly stand to disengage the locating pin (item 23) from the hole in the locating plate (item 6).
(c)Turn the hand wheel (item 31) to turn the TRF assembly to the horizontal position.
(d)Move the lever (item 24) to engage the locating pin (item 23) with the hole in the locating plate (item 6).
(2)Remove the bolts that attach the outer seal and the inner seal to the No. 5 bearing support housing.
(3)Remove the outer and inner seals from the No. 5 bearing support housing with five jack screws (0.250-28 UNF-2A).
(4)Remove and discard the preformed packing (01-150) (SIN 01552) from the inner seal.
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Figure 504   (Sheet 1 ) Removal of the Outer and Inner Seals from the No. 5 Bearing Support Housing
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Figure 504   (Sheet 2 ) Removal of the Outer/Inner Seal from the No. 5 Bearing Support Housing
Subtask 72-57-00-040-011
CAUTION:
DO NOT TOUCH NO. 5 BEARING SUPPORT HOUSING WITH YOUR BARE HANDS. SKIN OILS AND SALTS CAN CAUSE CORROSION. USE CLEAN C10-140  GLOVES WHEN YOU TOUCH THE BEARING COMPONENTS.
J.Remove the No. 5 bearing support housing from the TRF and install it on the 11C3543   buildup fixture as follows:
(1)Install the 11C3530   lift fixture to the No. 5 bearing support housing as follows. Refer to Figure 505.
(a)Install the lift plates (item 6) of the 11C3543   buildup fixture on the No. 5 bearing support housing as follows.
1Loosen the screws (item 17) to give a sufficient gap between the lift plates (item 6) and the lift nuts (item 5).
2Put the lift plates (item 6) on the forward bolt flange of the No. 5 bearing support housing at three equally spaced locations.
aPut the lift plates (item 6) on the forward side and the lift nuts (item 5) on the aft side of the forward bolt flange.
3Attach the lift plates (item 6) and lift nuts (item 5) to the forward bolt flange of the No. 5 bearing support housing with the cap screws (item 11).
(b)Loosen the pins (item 4) of the 11C3530   lift fixture and pull them out from the hook blocks (item 2).
(c)Install the hook blocks (item 2) to the lift plates (item 6) of the 11C3543   buildup fixture that are installed on the forward bolt flange of the No. 5 bearing support housing.
(d)Install the pins (item 4) of the 11C3530   lift fixture into the hook blocks (item 2). Tighten the pins by hand.
(2)Remove the self-locking nuts (nuts) (01-070) (SIN 01541) and the bolts that attach the No. 5 bearing support housing to the TRF. Discard the nut. Refer to Figure 506.
WARNING:
USE THERMAL GLOVES WHEN YOU MOVE OR TOUCH HOT OR COLD PARTS. HOT OR COLD PARTS CAN CAUSE INJURY.
(3)If necessary, use a heat gun to apply heat to the aft outer bolt flange of the No. 5 bearing support housing for 15 minutes.
(4)Put the 11C3589   No. 5 bearing cover on the No. 5 bearing. Refer to Figure 507.
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)Lift the No. 5 bearing support housing from the TRF with the sling assembly (item 6) and install it on the 11C3543   buildup fixture as follows. Refer to Figure 508.
(a)Put the No. 5 bearing support housing on the support stand brackets (items 3 and 4).
(b)Attach the No. 5 bearing support housing to the support stand brackets with the cap screws (item 12), washers (items 13), lock washers (item 14), and nuts (item 15).
Subtask 72-57-00-040-022
K.Remove the 11C3530   lift fixture from the No. 5 bearing support housing as follows. Refer to Figure 505.
(1)Turn the pins (item 4) counterclockwise (CCW) and disengage them from the hook blocks (item 2).
(2)Remove the hook blocks (item 2) from the housing flange.
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.
(3)Lift the 11C3530   lift fixture from the No. 5 bearing support housing and store in a safe location.
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Figure 505   Installation of the Lift Fixture, 11C3530, on the No. 5 Bearing Support Housing
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Figure 506   Removal of the No. 5 Bearing Support Housing from the TRF
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Figure 507   Installation of the No. 5 Bearing Cover, 11C3589, on the No. 5 roller bearing
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Figure 508   Installation of the No. 5 Bearing Support Housing on the Buildup Fixture, 11C3543
Subtask 72-57-00-040-013
L.Remove the No. 5 roller bearing from the No. 5 bearing support housing as follows. Refer to Figure 509.
CAUTION:
DO NOT TOUCH NO. 5 BEARING SUPPORT HOUSING WITH YOUR BARE HANDS. SKIN OILS AND SALTS CAN CAUSE CORROSION. USE CLEAN C10-140  GLOVES GLOVES WHEN YOU TOUCH THE BEARING COMPONENTS.
(1)Remove the self-locking nuts and the hex head bolts that attach the No. 5 roller bearing to the No. 5 bearing support housing.
(2)Turn the No. 5 bearing support housing to the aft end up position as follows:
(a)Remove the ball lock pins (item 7).
(b)Turn the No. 5 bearing support housing to the vertical position, aft end up.
(c)Install the ball lock pins (item 7) to lock the support stand brackets (items 3 and 4).
(3)Remove the bolt retainers and the slabbed head bolts from the No. 5 bearing support housing and No. 5 roller bearing. Discard the bolt retainers (01-100) (SIN 01594).
(4)Remove the No. 5 roller bearing from the No. 5 bearing support housing. Use four jackscrews (0.250-28 UNF-2A).
(5)Remove the piston rings from the No. 5 roller bearing.
(6)Remove the packing from the No. 5 bearing support housing. Discard the packing (01-130) (SIN 01556) or (01-131) (SIN 01556).
(7)Put a waterproof material cover on the No. 5 roller bearing.
Subtask 72-57-00-040-023
M.Install the 11C4293   TRF flow path protector on the aft side of the TRF. Refer to Figure 510.
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Figure 509   (Sheet 1 ) Removal of the No. 5 Roller Bearing from the No. 5 Bearing Support Housing
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Figure 509   (Sheet 2 ) Removal of the No. 5 Roller Bearing from the No. 5 Bearing Support Housing
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Figure 510   Installation of the TRF Flow Path Protector, 11C4293