Material No. 09-013 USA MIL-PRF-81733 TYPE I CLASS A
CORROSION INHIBITING BRUSH CONSISTENCY
(Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-912-004 Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)-
21-31-00-710-002 Operational Test of the Pressure Control and
Monitoring 21-31-34-000-001 Removal of the Cabin Pressure Controller (11HL,12HL) 21-31-34-400-001 Installation of the Cabin Pressure Controller
(11HL,12HL) 21-31-51-000-002 Removal of the Outflow Valve (10HL) - Electronics Module 10HL-1 (10HL-2) 21-31-51-000-005 Removal of the Outflow Valve (10HL) - Feedback Assembly 10HL-6 21-31-51-400-002 Installation of the Outflow Valve (10HL) -Electronics Module 10HL-1 (10HL-2) 21-31-51-400-005 Installation of the Outflow Valve (10HL) - Feedback Assembly 10HL-6 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 25-55-12-000-001 Removal of the AFT Cargo Compartment Partition FR65 25-55-12-400-001 Installation of the AFT Cargo Compartment Partition
FR65 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 21-31-00-991-004 Fig. 502
3. Job Set-up
__________
Subtask 21-31-00-480-055
A. Measurement Equipment
R (1) Milliohmeter, safety, low-voltage, with the related leads and probes. R
Subtask 21-31-00-861-063
B. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002)
Subtask 21-31-00-010-057
C. Get Access
(1) Put the access platform in position at the access door 811.
(2) Open the access door 811.
(3) Open the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001).
(4) Put the access platform in position at the AFT cargo-cmpartment door 826.
(5) Remove the access panel 162DW (Ref. TASK 25-55-12-000-001).
Subtask 21-31-00-865-063
D. Open, safety and tag this(these) circuit breaker(s):
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/CAB/PRESS/CTL1 1HL D09
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/AFT CARGO VENT/FAN 30HN S22
R **ON A/C ALL
R R R 122VU AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY 122VU AIR COND/CAB PRESS/CTL/MAN 122VU AIR COND/CAB PRESS/CTL/2 6HU 3HL 2HL U19 Y23 Y22
Subtask 21-31-00-020-052
E. Removal and Disconnection of the Applicable Components
(1) Remove the cabin pressure controllers 1 (11HL) and 2 (12HL) (Ref. TASK 21-31-34-000-001).
NOTE : It is not necessary to remove the cabin pressure controllers____ from the aircraft.
(2) Disconnect the electrical connectors 10HL-A and 10HL-B from the electronic modules 10HL-1 and 10HL-2 (Ref. TASK 21-31-51-000-002).
(3) Disconnect the electrical connectors 10HL-D and 10HL-E from the feedback assembly 10HL-6 (Ref. TASK 21-31-51-000-005).
4. Procedure
_________
Subtask 21-31-00-760-050
A. Measure the Resistance
NOTE : Maximum Allowed Resistance Value
____ The maximum resistance value at all measurement points should not be more than 300 milliohms.
(1) Connect the measurement equipment (refer to the manufacturers instructions) to:
(a) FOR 11HL
-the pin 2 on the electrical connector 11HL-AC and a good conductive surface on the aircraft structure.
-measure the resistance value and make sure that it is not more than the maximum allowed value.
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