(4) Remove the access platform(s).
Subtask 53-19-41-862-050
B. De-energize the aircraft electrical circuit (Ref. TASK 24-41-00-862-002).
R EFF : 001-049, 054-099, 101-149, 151-199, 53-19-41Page 408 201-299, 301-399, 401-499, Aug 01/05
CES EFF : ALL
R **ON A/C ALL
R TASK 53-19-41-000-003
R Removal of the Drain Valves
R 1. Reason for the Job__________________
R Self Explanatory
R 2. Job Set-up Information______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------
R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific non metallic scraper
R No specific access platform 1.6 m (5 ft. 3 in.)
R B. Consumable Materials
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R Material No. 11-004 USA MIL-T-81533
R 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
R (Ref. 20-31-00)
R Material No. 19-003 USA AMS 3819
R LINT-FREE COTTON CLOTH (Ref. 20-31-00)
R C. Referenced Information
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
R External Power
R 53-12-13-000-001 Removal of the avionics compartment floor panels
R 53-19-41-991-003 Fig. 402
53-19-41Page 409
Nov 01/00
R 3. Job Set-up__________
R Subtask 53-19-41-861-052
R A. Energize the aircraft electrical circuits
R (Ref. TASK 24-41-00-861-002).
R Subtask 53-19-41-010-053
R B. Get access to the Avionics Compartment
R (1) Put an access platform in position at zone 811.
R (2) Open the avionics-compartment access door 811.
R (3) Put an access platform in position at zone 824.
R (4) Open the avionics-compartment access door 824.
R (5) On the panel 50VU:
R - push the AVIONICS/COMPT LT pushbutton switch 23LS.
R Subtask 53-19-41-010-054
R C. Removal of Components
R (1) In the avionics compartment, remove the applicable floor panel
R (Ref. TASK 53-12-13-000-001).
R (2) Remove the insulation blanket.
R 4. Procedure_________
R Subtask 53-19-41-020-052
R A. Removal of the Drain Valve
R (Ref. Fig. 402/TASK 53-19-41-991-003)
R (1) Remove the remaining sealant with CLEANING AGENTS (Material No. 11-
R 004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper
R around the valve (4).
R (2) Remove the valve (4).
R (3) Remove the two bolts (3).
EFF : ALL
53-19-41Page 410
Nov 01/00
R R Drain Valve Figure 402/TASK 53-19-41-991-003
EFF : ALL 53-19-41 Page 411 Nov 01/00
CES
R (4) Remove the remaining sealant with CLEANING AGENTS (Material No. 11-
R 004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper
R around the retaining valve (2).
R (5) Remove the two nuts (1).
R (6) Remove the retaining valve (2).
EFF : ALL
53-19-41Page 412
TASK 53-19-41-400-003
Installation of the Drain Valves
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1.6 m (5 ft. 3 in.)
B. Consumable Materials
-------------------------------------------------------------------------------
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