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
V2500-A5
Common Information
TASK 71-00-02-000-015-B00 (A5-PPBU) - Remove The Cabin Bleed Air System Ducts, Valves And Air System Sense Tubes, Removal-015
General
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
For all parts identified in a different Chapter/Section/Subject the applicable Chapter/Section/Subject comes before Fig/item number.
Apply the approved CoMat 10-058 PENETRATING OIL before the removal of threaded parts. Let the parts soak before removal.
Remove and discard the lockwire before the tube or connector is disconnected.
When electrical connections are disconnected special plastic caps must be installed.
All the tubes, hoses and ducts removed in this procedure must have their maintenance completed, as given in the Component Maintenance Manual (CMM-THD-V2500-1IA).
Seal all openings to prevent contamination from unwanted materials.
Discard all rubber seal rings removed in this procedure.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-058 PENETRATING OIL | 0AM53 | CoMat 10-058 |
Spares
NONESafety Requirements
NONEProcedure
Remove the nut, the bolt and the washer that attach the connecting rod to the bracket HPC Assembly (72-41-00, 03-770).
Remove the nut, the bolt and the washer that attach the link to the brackets HPC Module - Attaching Parts (72-40-00, 01-760) and HPC Module - Attaching Parts (01-770).
Remove the upper duct assembly.
NOTE
The hose PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-200) must have its maintenance completed, as given in the Marston Palmer Ltd. Component Maintenance Manual (36-21-49).Disconnect and remove the hose PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-200) from the tube connected to the pressure regulator bleed valve.
Pre SBE 36-0007.
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-510) from the pressure regulator bleed valve. Loosen the applicable clip positions to give clearance for tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-510).
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-600) from the pressure regulator bleed valve.
Remove the pressure regulator bleed valve Bleed Pressure Regulator Valve (36-11-52, 01-050).
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-500) from the union PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-650). Loosen the applicable clip positions to give sufficient clearance for tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-500). Remove the union and K-seal from the duct PNEUMATIC-BLEED AIR DUCTS (36-11-49, 01-300).
Disconnect and remove tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-725) from the hose PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-700).
NOTE
The hose PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-700) must have its maintenance completed, as given in the Marston Palmer Ltd. Component Maintenance Manual (36-21-49).Disconnect and remove the hose PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-700) from the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-500).
Remove clip positions 5923 and 6064 and remove tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 02-500).
Remove the Y-duct.
Pre SBE 36-0007.
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-100) from the HP bleed valve. Loosen the applicable clip positions to give clearance to the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-510).
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-600) from the HP bleed valve.
Remove the HP bleed valve.
SUBTASK 71-00-02-020-041 Remove the Cabin Bleed Air System Ducts, Valves and Sense Tubes (Pre SBE 36-0007 and SBE 36-0007)
Refer to Figure.
Remove the attaching parts at clip positions 5862 and 5931, remove the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-100).
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-500) from the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-510).
Remove the clip positions 5495, 5997 and 5865. Remove the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-500).
Remove the clip positions 5996 and 6108. Remove the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-510).
Remove the remaining cabin bleed system sense tubes.
SUBTASK 71-00-02-020-042-A00 Remove the Remaining Cabin Bleed System Sense Tubes (Pre SBE 36-0007 and SBN 71-0273)
Refer to Figure.
Disconnect the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-600) from the pressure regulator bleed valve Bleed Pressure Regulator Valve (36-11-52, 01-050) and the high pressure bleed valve PNEUMATIC-HP BLEED VALVE(36-11-51, 01-050).
Remove the clip positions 5657, 5647 and 5591. Remove the tube PNEUMATIC-PRESSURE INDICATING TUBES (36-21-49, 01-600).
Remove the remaining cabin bleed system sense tubes.
SUBTASK 71-00-02-020-042-B00 Remove the Remaining Cabin Bleed System Sense Tubes (SBE 36-0007)
Figure: Remove the Cabin Bleed Air System Ducts and Valves
Sheet 1

Figure: Remove the Cabin Bleed Air System Ducts and Valves
Sheet 2

Figure: Pre SBE 36-0007, SBN 71-0273: Remove the Cabin Bleed Air System Sense Tubes
Sheet 1

Figure: SBE 36-0007: Remove the Cabin Bleed Air System Sense Tubes
Sheet 2

