TASK 75-24-51-200-402-A00 Active Clearance Control (ACC) Valve - Related Parts - Examine The Active Clearance Control (ACC) Spherical Joint Assembly, Inspection-002

DMC:V2500-A0-75-24-5100-01A-310A-C|Issue No:001.00|Issue Date:2013-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 75-24-51-200-402-A00 Active Clearance Control (ACC) Valve - Related Parts - Examine The Active Clearance Control (ACC) Spherical Joint Assembly, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-275

2A1412

General

This TASK gives the procedure for the inspection of the ACC spherical joint assembly. For the other ACC valve parts, refer to Inspection-000 TASK 75-24-51-200-400.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

The policy that is necessary for inspection is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to Cleaning-000 TASK 75-24-51-100-400.

All parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in Step Do the test before the part is visually examined.

Do not discard any part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which should be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a later date.

All parts must be examined to make sure that all the repairs have been completed satisfactorily.

The practices and processes referred to in the procedure by the TASK number are in the SPM.

References

Refer to the SPM for data on these items.

Definitions of Damage, SPM TASK 70-02-02-350-501.

Inspection of Parts, SPM TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to the SPM.

Method of Testing for Crack Indications

Chemical Processes

Surface Protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-24-51-230-052 Examine the Ball (01-295-2A3648) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 75-24-51-100-400.

      NOTE

      For the method to clean the part, refer to SPM TASK 70-11-26-300-503.

      2. Do the visual inspection on the parts that are given below.

        1. Ball. Refer to SPM TASK 70-21-01-220-501.

          1. Cracked

          1. Reject

    2. SUBTASK 75-24-51-230-054 Examine the Housing (01-300-2A3647) for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 75-24-51-100-400.

      NOTE

      For the method to clean the parts, refer to SPM TASK 70-11-26-300-503.

      2. Do the visual inspection on the parts that are given below.

        1. Housing. Refer to SPM TASK 70-21-01-220-501.

          1. Cracked

          1. Reject

    3. SUBTASK 75-24-51-220-056 Examine the ACC Spherical Joint Assembly (01-275-2A1412) Movement

      1. Examine movement.

        1. Binding

          1. The ball can be moved through 10 degrees in corn angle with maximum torque of 20 lbfin (2.26 Nm).

          1. Accept

          2. Other than in Step.

          1. Reject

    4. SUBTASK 75-24-51-220-057 Examine the Housing (01-300-2A3647) Insert

    1. Refer to Figure.

      2. Examine the insert at location 1.

        1. Damage

        1. Repair, VRS1537 (Repair-003) TASK 75-24-51-300-003.

    5. SUBTASK 75-24-51-220-071 Examine the Ball (01-295-2A3648) Diameter

    1. Refer to Figure.

      2. Examine the inner-diameter at location 3.

        1. Worn

          1. Less than or equal to 3.087 in. (78.41 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

      3. Examine the outer-diameter at location 4.

        1. Worn

          1. Greater than or equal to 3.295 in. (83.69 mm) in outer diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

    6. SUBTASK 75-24-51-220-072 Examine the Housing (01-300-2A3647) Diameter

    1. Refer to Figure.

      2. Examine the inner-diameter at location 2.

        1. Worn

          1. Less than or equal to 3.323 in. (84.40 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

    7. SUBTASK 75-24-51-220-074 Examine the Ball (01-295, Part No. 2A3648) Surface

    1. Refer to Figure.

      2. Examine all the surface.

        1. Galled

          1. Not more than 0.01 in. (0.25 mm) in depth.

          1. Accept

          2. More than in Step.

          1. Reject

        2. Scratched

          1. Not more than 0.02 in. (0.5 mm) in depth.

          1. Accept

          2. More than in Step.

          1. Reject

    8. SUBTASK 75-24-51-220-075 Examine the Housing (01-300, Part No. 2A3647) Surface

    1. Refer to Figure.

      2. Examine all the surface.

        1. Galled

          1. Not more than 0.01 in. (0.25 mm) in depth.

          1. Accept

          2. More than in Step.

          1. Reject

        2. Scratched

          1. Not more than 0.02 in. (0.5 mm) in depth.

          1. Accept

          2. More than in Step.

          1. Reject

    9. Figure: Inspection of the ACC Spherical Joint Assembly

    Inspection of the ACC Spherical Joint Assembly

Requirements After Job Completion

Follow-On Conditions

NONE