__________
Subtask 36-22-18-865-050
A. Open, safety and tag this(these) circuit breaker(s):
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PANEL DESIGNATION IDENT. LOCATION
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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 R 122VU AIR BLEED/X FEED VALVE/NORM 1HV Z20
Subtask 36-22-18-860-050
B. Aircraft Maintenance Configuration
(1) Put the warning notice 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,
- on the HP ground connector to tell persons not to pressurize the pneumatic system.
(2) Put the adjustable access platform up to 2.5 m (8 ft. 2 in.) in position below the related access panel.
Subtask 36-22-18-010-050
C. Get Access
NOTE : To remove the necessary overheat sensing-elements, remove only the
____
related access panels.
(1)
Get access to the overheat sensing-elements between FR35 and FR36:
(a) Remove the access panels 191BB and 191EB.
(2)
Get access to the overheat sensing-elements between FR36 and FR42 LH:
(a) Remove the access panel 191JB.
(3)
Get access to the overheat sensing-elements between FR34 and FR42 RH:
(a) Remove the access panels 192EB, 192FB, 192KB and 196AB.
(4)
Get access to the overheat sensing-elements between FR42 and FR50:
(a) Remove the access panels 147AB, 147EB, 147FB and 197BB.
4. Procedure
_________
(Ref. Fig. 401/TASK 36-22-18-991-001) Subtask 36-22-18-020-050
A. Removal of the Overheat Sensing Elements CAUTION : REMOVE OR INSTALL THE SENSING ELEMENTS CAREFULLY. DO NOT TWIST,
_______
BEND OR CAUSE KINKS IN THE SENSING ELEMENTS.
NOTE : The removal procedure for all sensing elements of the leak
____ detection system (double loop 125 degree C) is the same.
(1)
Cut and remove the lockwire from the union nut (1) and the bracket (5).
(2)
Loosen the union nut (1).
(3)
Cut and remove the lockwire from the retaining nut (2).
(4)
Remove and retain the retaining nut (2) and the washer (3).
(5)
Secure the sensing element to the bracket (5).
(6)
Put blanking caps on the disconnected electrical connectors.
(7)
Put the blanking cap on the socket (4).
(8)
Loosen the camloc (6) and open the clamp (7).
(9)
Remove the sensing element with the attached grommet (8).
(10) Remove the grommet (8) from the sensing element and retain.
Fuselage Overheat Sensing Elements (Loop A and B) 31HF-36HF, 47HF, 58HF-63HF, 73HF-75HF, 78HF, 79HF Figure 401/TASK 36-22-18-991-001
TASK 36-22-18-400-001
Installation of the Fuselage Overheat Sensing-Elements (Loop A and B)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific adjustable access platform up to 2.5 m (8 ft. 2 in.)
No specific warning notice R No specific Torque Wrench : range 0.00 to 1.20 m.daN R (0.00 to 9.00 lbf.ft)
B. Consumable Materials
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REFERENCE DESIGNATION
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No specific lockwire, corrosion-resistant steel dia 0.63 mm
(0.0248 in.)
C. Referenced Information
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REFERENCE DESIGNATION
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36-22-00-710-001 Operational Test of the Overheat Detection System 36-22-18-991-001 Fig. 401
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