C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
R  3 seals
R  3 seals 3 seals 3 seals 3 seals 3 seals 3 seals 3 seals 16 seal 16 seal 41 seal 41 seal
R  122 seals
R  122 seals 122 seals 122 seals 122 seals 122 seals 122 seals 122 seals 192 seal 192 seal 217 packing 221 seals 221 seals 221 seals 265 seals 265 seals 270 seals 271 seals 21-51-03 11B-025 21-51-03 11B-025A21-51-03 11C-02521-51-03 11C-025A21-51-03 11E-02521-51-03 11E-025A21-51-03 11F-02521-51-03 11F-025A36-11-03 21 -17036-11-03 21 -170A36-11-03 20 -19036-11-03 20 -190A 21-51-03 11B-025 21-51-03 11B-025A21-51-03 11C-02521-51-03 11C-025A21-51-03 11E-02521-51-03 11E-025A21-51-03 11F-02521-51-03 11F-025A36-12-03 22 -29036-12-03 22 -290A21-52-03 27B-18021-51-03 08 -05521-51-03 08 -055A21-51-03 08 -055B21-63-03 05 -090A21-63-03 05A-09021-51-03 08 -020A21-63-03 03 -020A

 D. Referenced Information

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-52-24-000-001
21-52-24-400-001
21-63-42-000-001 21-63-42-400-001
21-63-52-000-001 21-63-52-400-001 36-12-00-790-003
36-12-52-000-001 36-12-52-400-001 36-22-00-710-001 36-22-18-000-001
36-22-18-400-001
53-35-13-000-001 53-35-13-000-002
53-35-13-400-001 53-35-13-400-002
36-12-41-400-001
36-12-41-991-005 36-12-41-991-006 36-12-41-991-007 36-12-41-991-008 36-12-41-991-012 36-12-41-991-013 36-12-41-991-014
3. Job Set-up
__________
 Subtask 36-12-41-941-051
 A. Safety PrecautionsRemoval of the Heat Exchanger Unit 10HM4 (11HM4) (From the Aircraft)Installation of the Heat Exchanger Unit 10HM4 (11HM4) (Into the Aircraft)Removal of the Trim-Air Check Valves 18HM and 19HMInstallation of the Trim-Air Check Valves 18HM and 19HMRemoval of the Pressure Regulating Valve 14HKInstallation of the Pressure Regulating Valve 14HKLeak Check on Bleed Air Ducting in the Fuselage Area between the APU Bleed Check Valve, Air Conditioning Pack and Wing/Fuselage ConnectionRemoval of the Crossbleed Valve (6HV)Installation of the Crossbleed Valve (6HV)Operational Test of the Overheat Detection SystemRemoval of the Fuselage Overheat Sensing-Elements (Loop A and B)Installation of the Fuselage Overheat Sensing-Elements (Loop A and B)Removal of the Belly Fairing Access PanelsRemoval of the Quick-Release Access Panels from the Belly Fairing StructureInstallation of the Belly Fairing Access PanelsInstallation of the Quick-Release Access Panels on the Belly Fairing StructureInstallation of a Bleed-Air Duct (for corrective action)Fig. 404Fig. 405Fig. 406Fig. 407Fig. 408Fig. 409Fig. 410
 (1) Put the warning notices in position:
 -
in the cockpit on the Engine Control Panel 115VU to tell persons not to start the engine(s),

 -
in the cockpit on the AIR COND Overhead Control Panel 30VU to tell persons not to push in the APU BLEED pushbutton switch,

 1EFF : ALL 1 36-12-41Page 427 1 1 May 01/05R 1 1 1CES 1

 - on the HP ground connector to tell persons not to pressurize the pneumatic system.
 Subtask 36-12-41-865-053
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR BLEED/X FEED/VALVE/BAT 2HV D13 49VU AIR BLEED/ENG 1/CTL 3HA1 D12 49VU AIR BLEED/ENG 1/MONG 2HA1 D11 122VU AIR BLEED/ENG 2/CTL 3HA2 Z23 122VU AIR BLEED/ENG 2/MONG 2HA2 Z22 122VU AIR BLEED/X FEED VALVE/NORM 1HV Z20

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 36-12-41-010-051
 C. Get Access
 (1)
 Remove the access panels 191BB, 191KB, 192FB and 192KB (Ref. TASK 53-35-13-000-002).

 (2)
 Remove the access panels 191JB, 147EB, 147FB and 197BB (Ref. TASK 53-35-13-000-001).

 (3)
 If necessary, remove the insulation from the applicable APU bleed-air ducts.

 (4)
 If necessary, remove the overheat sensing-elements from the applicable APU bleed-air ducts (Ref. TASK 36-22-18-000-001).

 (5)
 Remove the heat exchanger units (Ref. TASK 21-52-24-000-001).

 **ON A/C 301-399,
 Subtask 36-12-41-010-051-A
 C. Get Access
 (1)
 Remove the access panels 191BB, 191KB, 192FB and 192KB (Ref. TASK 53-35-13-000-002).

 (2)
 Remove the access panels 191JB, 147EB, 147FB and 197KB (Ref. TASK 53-35-13-000-001).
　
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