TASK 72-50-42-200-004 No. 5 Bearing - Examine, Inspection-004

DMC:V2500-A0-72-50-4201-00A-300A-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 72-50-42-200-004 No. 5 Bearing - Examine, Inspection-004

Effectivity

FIG/ITEM PART NO.

01-100

4T8001

01-100A

4T8005

General

This TASK gives the procedure for inspection of the No. 5 bearing. A bearing with an inner diameter not matching the required fits and clearance value can be held for possible reinstallation on an LP shaft with a larger outer diameter

Fig/item 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 70-20-00-200-501.

All parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501

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

References

Refer to the SPM for data on these items

Definition of damage, SPM TASK 70-02-02-350-501

Record and Control of the Lives of the Parts, SPM TASK 70-05-00-220-501

Inspection of Parts, SPM TASK 70-20-00-200-501

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

Surface protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Bearing radial clearance gageLOCALBearing radial clearance gage

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-42-220-072 Examine the No. 5 Bearing (01-100, 01-100A)

      1. Examine the No. 5 bearing for general damages.

      1. Refer to the SPM TASK 70-29-01-290-501

    2. SUBTASK 72-50-42-220-073 Examine the No. 5 Bearing (01-100, 01-100A) Outer Diameter at Location 1

    1. Refer to: Figure

      2. Diameter.

        1. Between 5.5110 and 5.5124 in. (139.980 and 140.014 mm)

        1. Accept

        2. More than 5.5124 in. (140.014 mm)

        1. Reject

    3. SUBTASK 72-50-42-220-074 Examine the No. 5 Bearing (01-100, 01-100A) Inner Diameter at Location 2

      CAUTION

      THE FOLLOWING INSPECTION RELATES TO THE FITS/CLEARANCES AT LOCATION 3394 AND 3404 REFER TO TASK 72-50-00-430-002-A00. DO NOT ACCEPT ANY PART UNTIL YOU ARE SURE THAT THE FITS AND CLEARANCES VALUE BELOW IS WITHIN THE SPECIFIED LIMITS.

    1. Refer to: Figure

      2. Diameter.

        1. Between 3.6217 and 3.6224 in. (91.992 and 92.009 mm)

        1. Accept

        2. More than 3.6224 in. (92.009 mm)

        1. Reject

    4. SUBTASK 72-50-42-220-075 Examine the No. 5 Bearing (01-100, 01-100A) Inner Radial Clearance

    1. Refer to: Figure

      2. Examine the bearing for the inner radial clearance by the procedure given in SPM TASK 70-29-01-290-501. Use a 33 lb (14.97 kg) radial load.

        1. Between 0.0016 and 0.0026 in. (0.040 and 0.065 mm)

        1. Accept

        2. More than 0.0026 in. (0.065 mm)

        1. Reject

    5. SUBTASK 72-50-42-620-052 Preserve the No. 5 Bearing (01-100, 01-100A)

      1. Preserve the bearing.

    6. Figure: Location - No. 5 bearing

    Location - No. 5 bearing

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment