(4)
Turn and safety the seven door fasteners (5) of the filter housing
(3) to close the door.
5. Close-up
________ Subtask 21-26-43-410-087
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 824 (Ref. TASK 52-41-00-410-002).
(3)
Remove the access platform(s).
R 1EFF : 301-399, 401-499, 1 21-26-43Page 308 1 1 Config-2 Aug 01/05 1 1 1CES 1
Filter Cartridge
Figure 302/TASK 21-26-43-991-029
Subtask 21-26-43-865-116
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HQ, 2HQ, 3HQ, 5HQ, 6HQ
Subtask 21-26-43-861-113
C. Energize the aircraft eletrical circuits (Ref. TASK 24-41-00-861-002). Subtask 21-26-43-862-108
D. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
R **ON A/C 001-049, 101-105,
R TASK 21-26-43-600-018 R Servicing of the Demister Filter (2081HM) R CAUTION : USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY ELECTRICITY BECAUSE THE
_______ R AVIONICS VENTILATION SYSTEM IS NOT SERVICEABLE. IF YOU ENERGIZE THE R AIRCRAFT ELECTRICAL CIRCUITS WITHOUT THE VENTILATION SYSTEM YOU WILL R CAUSE DAMAGE TO ELECTRICAL EQUIPMENT.
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 circuit breaker(s) safety clip(s) R No specific access platform 1.6 m (5 ft. 3 in.)
R B. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R 24-41-00-861-002 R R 24-41-00-862-002 R R 24-42-00-861-001 R R 24-42-00-862-001 R R 52-41-00-410-002 R CMM 212600 R 21-26-43-991-030 Energize the Aircraft Electrical Circuits from the External Power De-energize the Aircraft Electrical Circuits Supplied from the External Power Energize the Ground Service Network from the External Power De-energize the Ground Service Network Supplied from the External Power Close the Avionics Compartment Doors after Access
Fig. 303
R 3. Job Set-up__________
R Subtask 21-26-43-862-109
R A. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-
R 002).
R Subtask 21-26-43-861-114
R B. Energize the ground service network (Ref. TASK 24-42-00-861-001).
R Subtask 21-26-43-865-117
R C. Open, safety and tag this(these) circuit breaker(s):
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R 49VU AIR COND/AVNCS VENT/CTL 6HQ D06
R 49VU AIR COND/AVNCS VENT/CTL 5HQ D05
R 122VU AIR COND/AVNCS/VENT/MONG 3HQ Y17
R 123VU AVNCS VENT/BLOWER/FAN 1HQ AD10
R 123VU AVNCS VENT/EXTC/FAN 2HQ AE02
R Subtask 21-26-43-010-093
R D. Get Access
R (1) Put the access platform in position at the access door 824.
R (2) Open the access door 824.
R 4. Procedure_________
R (Ref. Fig. 303/TASK 21-26-43-991-030)
R Subtask 21-26-43-020-080
R A. Removal of the Demister Filter
R (1) Move the locking handle of the cover (3) to the top to release the
R handle.
R (2) Pull the handle to remove the filter/cover assembly.
R NOTE : Make sure that the plate (2) is in the correct position.____
R Demister Air Filter R Figure 303/TASK 21-26-43-991-030
1EFF : 001-049, 101-105, 1 21-26-43Page 313 1 1 Config-2 Aug 01/05 1 1 1CES 1
R (3) Disengage the tabs one by one from the top to the bottom to remove
R the filter element (1) from the cover (3).
R Subtask 21-26-43-615-067
R B. Remove the demister filter and replace it by a new or restored one.
R Subtask 21-26-43-160-072
R C. Clean the component interface and/or the adjacent area.
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