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TASK 72-30-74-200-801
1 . General.
A.This procedure gives instructions to do an inspection of the VSV torque shaft (torque shaft).
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Torque shafts (01-079 , 72-30-00) (SIN 07501-2) and (01-199 , 72-30-00) (SIN 07500-2) (SB 72-0027, Configuration 1) Part number 2322M67P02
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Torque shafts (01-080 , 72-30-00) (SIN 07501-2) and (01-200 , 72-30-00) (SIN 07500-2) (Configuration 2) Part number 2363M58P01
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Torque shafts (01-080A , 72-30-00) (SIN 07501-2) and (01-200A , 72-30-00) (SIN 07500-2) (SB 72-0027, Configuration 3) Part number 2363M60P01
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Torque shafts (02-020A , 72-30-00) (SIN 07501-2) or (02-210A , 72-30-00) (SIN 07500-2), (integral clevis or casting configuration) Part number 2500M83P01
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Torque shafts (02-020 , 72-30-00) (SIN 07501-2) or (02-210 , 72-30-00) (SIN 07500-2), (separable clevis or bolted-on configuration) Part number 2474M00P01.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools. None.
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials. None.
C.Referenced Procedures.
 
ATA No.
Description
 
70-32-02
Fluorescent Penetrant Inspection
 
70-32-03
Spot-Fluorescent-Penetrant Inspection
 
70-33-03
Special Inspection for Surface Fretting or Galling
 
70-42-00
Blending and Removal of High Metal Procedures
D.Expendable Parts. None.
3 . Specific Inspection Procedure.
Subtask 72-30-74-230-001
A.Alternative Procedure Available. If you think you see cracks, do a Class A fluorescent penetrant inspection to make sure. Refer to TASK 70-32-02-230-001 (FLUORESCENT PENETRANT INSPECTION).
Subtask 72-30-74-230-002
A.A.Alternative Procedure. If you think you see cracks, do a spot-fluorescent-penetrant inspection to make sure. Refer to TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION).
4 . Visual Inspection.
Subtask 72-30-74-220-001
A.Do a visual inspection of all surfaces of each torque shaft as follows. Refer to Figure 801.
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-004
(2)Nicks, dents, and scratches (this does not include the clevis edges) for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount, 0.005 inch (0.13 mm) in depth after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, 0.015 inch (0.38 mm) in depth, if the repair areas are a minimum of 1.0 inch (25 mm) away from each other.
Repair method:
Blend to remove damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-30-74-220-005
(3)Nicks, dents, and scratches on the edges of the VSV actuator clevis and all other edges for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount, 0.005 inch (0.13 mm) in depth after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, 0.02 inch (0.5 mm) in depth.
Repair method:
Blend to remove damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-30-74-220-006
(4)Wear at diameter N for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount, if in the limits of Subtask 72-30-74-220-017 (paragraph 5.B.(4)).
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-007
(5)Fretting on the support mating surfaces for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount, if in the limits of TASK 70-33-03-220-006 (SPECIAL INSPECTION FOR SURFACE FRETTING OR GALLING) .
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-008
(6)Local deformation for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount, 0.008 inch (0.20 mm) in depth. No sharp edges permitted.
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-018
(7)Rub marks on the VSV actuator clevis for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Not serviceable
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-020
(8)Rub marks, wear and galling on the VSV actuator mating surfaces for torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01:
Maximum serviceable limit:
Any amount not more than 0.025 inch (0.64 mm) in depth after removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-021
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B.Do an inspection of the IGV clevis and stage 1 thru stage 4 clevises. Refer to Figure 801A.
NOTE:
SB 72-0027 (Configuration 1) does not require inspection of the IGV clevis and stage 1 thru stage 4 clevises.
(1)Nicks, dents, and scratches on each clevis for torque shaft part number 2363M58P01:
Maximum serviceable limit:
Any amount, 0.005 inch (0.13 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, 0.02 inch (0.5 mm) in depth.
Repair method:
Blend to remove the high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-30-74-220-023
(2)Rub marks on the bolthead, turnbuckle, and nut mating surface for torque shaft part number 2363M58P01:
Maximum serviceable limit:
Any amount, 0.002 inch (0.05 mm) in depth.
Repair method:
Replace the clevis.
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Subtask 72-30-74-220-024
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B.A.Do an inspection of the IGV clevis and stage 1 thru stage 4 clevises. Refer to Figure 801B.
NOTE:
SB 72-0027 (Configuration 1) does not require inspection of the IGV clevis and stage 1 thru stage 4 clevises.
(1)Nicks, dents, and scratches on each clevis for torque shaft part number 2363M60P01:
Maximum serviceable limit:
Any amount, 0.005 inch (0.13 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, 0.02 inch (0.5 mm) in depth.
Repair method:
Blend to remove the high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-30-74-220-025
(2)Rub marks on the bolthead, turnbuckle, and nut mating surface for torque shaft part number 2363M60P01:
Maximum serviceable limit:
Any amount, 0.002 inch (0.05 mm) in depth.
Repair method:
Replace the clevis.
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Figure 801   VSV Torque Shaft
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Figure 801A   VSV Torque Shaft
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Figure 801B   VSV Torque Shaft
Subtask 72-30-74-220-002
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C.Do a visual inspection of the clevis holes of the torque shaft as follows. Refer to Figure 801.
NOTE:
PRE SB 72-0027 (Configuration 2) and SB 72-0027 (Configuration 3) do not require inspection of the clevis holes of the torque shaft.
(1)Nicks, dents, scratches, and pits on the ID for torque shaft part number 2322M67P02:
Maximum serviceable limit:
Any amount after the removal of high metal, if in the limits of Subtask 72-30-74-220-003 (paragraph 5.A.) . Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Not repairable.
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-009
(2)Wear or grooves around the clevis holes of the torque shaft in the ID for torque shaft part number 2322M67P02:
Maximum serviceable limit:
Any amount after the removal of high metal, if in the limits of Subtask 72-30-74-220-003 (paragraph 5.A.) . Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Not repairable.
Repair method:
Replace the torque shaft.
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Subtask 72-30-74-220-027
D.Do an inspection of the actuator clevis, IGV clevis, and stage 1 through stage 4 clevises for integral clevis or casting configuration. Refer to Figure 803.
NOTE:
If VSV actuator clevis bushing repair is done on the torque shaft, bushings can be seen in the actuator clevis. Refer to TASK 72-30-74-300-801 (72-30-74, REPAIR 001).
(1)Wear due to contact with turnbuckle rod end on inner surface of the shaft stage clevises (IGV through stage 4) for torque shaft part number 2500M83P01:
Maximum serviceable limit:
Any amount, 0.010 inch (0.25 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-032
(2)Wear due to contact with actuator rod end on inner surface of the shaft actuator clevis for torque shaft part number 2500M83P01   without bushings installed in the actuator clevis:
Maximum serviceable limit:
Any amount, 0.004 inch (0.10 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Repair. Refer to TASK 72-30-74-300-801 (72-30-74, REPAIR 001) .
Subtask 72-30-74-220-033
(3)Wear caused due to contact with the actuator rod end on the bushing for torque shaft part number 2500M83P01   with the bushings in the actuator clevis:
Maximum serviceable limit:
Not serviceable.
Repair method:
Repair. Refer to TASK 72-30-74-300-801 (72-30-74, REPAIR 001) .
Subtask 72-30-74-220-028
E.Do an inspection of the actuator clevis for separable clevis or bolted-on configuration. Refer to Figure 804.
(1)Wear due to contact with actuator rod end on inner surface of the shaft actuator clevis for torque shaft part number 2474M00P01:
Maximum serviceable limit:
Any amount, 0.010 inch (0.25 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Replace the torque shaft
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Figure 802   VSV Torque Shaft - Dimensional Inspection
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Figure 802A   VSV Torque Shaft - Dimensional Inspection
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Figure 802B   VSV Torque Shaft - Dimensional Inspection
5 . Special Dimensional Inspection.
Subtask 72-30-74-220-026
A.Do this special dimensional inspection only if a visual inspection shows any defect or other conditions that make a dimensional inspection necessary. For torque shaft part numbers 2322M67P02, 2363M58P01, and 2363M60P01. Refer to Figure 802, Figure 802A, and Figure 802B.
Subtask 72-30-74-220-003
B.Do a dimensional inspection of each torque shaft as follows. Refer to Figure 802, Figure 802A, and Figure 802B.
(1)Diameter A:
Minimum serviceable limit:
1.9665 inches (49.949 mm).
Maximum serviceable limit:
1.9690 inches (50.013 mm).
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-010
(2)Diameter B:
Minimum serviceable limit:
1.9665 inches (49.949 mm).
Maximum serviceable limit:
1.9690 inches (50.013 mm).
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-013
(3)Dimension M:
Minimum serviceable limit:
0.625 inch (15.88 mm).
Maximum serviceable limit:
0.631 inch (16.03 mm).
Repair method:
Replace the torque shaft.
Subtask 72-30-74-220-017
(4)Diameter N:
Minimum serviceable limit:
0.5000 inch (12.700 mm).
Maximum serviceable limit:
0.5016 inch (12.741 mm).
Repair method:
Replace the torque shaft.
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Figure 803   VSV Torque Shaft - Integral Clevis or Casting Configuration
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Figure 804   VSV Torque Shaft - Separable Clevis or Bolted-on Configuration