(5)
 Remove the ISIS indicator (1).

 (6)
 Put blanking caps on the disconnected electrical connectors (5) and (6).

 (7)
 Put blanking plugs on the disconnected line ends (2) and (4).

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 ISIS Indicator
 Figure 401/TASK 34-22-25-991-001

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 TASK 34-22-25-400-001
 Installation of the ISIS Indicator (22FN)

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-13-00-710-001  Operational Test of the Instrument and Panel Integral Lighting 34-22-25-740-001 BITE Test of the ISIS Indicator with the pushbutton switches on the Face of the Indicator. 34-22-25-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 34-22-25-865-059
 A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU STBY/INST 5FN F12 105VU NAV/STBY/INST/BAT 23FN J01 122VU LIGHTING/INSTL LT/MAIN INST/PNL AND/PED 4LF Y04
 4. Procedure
_________ (Ref. Fig. 401/TASK 34-22-25-991-001) Subtask 34-22-25-420-051
 A. Installation of the ISIS Indicator (22FN)
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

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 (3)
 Remove the blanking caps from the electrical connectors (5) and (6).

 (4)
 Remove the blanking plugs from the line ends (2) and (4).

 (5)
 Connect the quick-disconnect couplings (4) of the pressure lines (green and red) to the related connectors (2) of the ISIS indicator (1).

 NOTE : After the connection:
____
 -make sure that a colored ring is shown on the quick-disconnect coupling,
 -pull the connectors to be sure that they are correctly attached.
 (6)
 Make sure that the electrical connectors are clean and in the correct condition.

 (7)
 Connect the electrical connector (5) to the receptacle (6) of the ISIS indicator (1).

 (8)
 Install the ISIS indicator (1) in its housing.

 (9) Tighten the screws (3). Subtask 34-22-25-865-060
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 4LF, 5FN, 23FN
 Subtask 34-22-25-710-050
 C. Test
 (1)
 Do the operational test of the instrument and panel integral lighting (Ref. TASK 33-13-00-710-001).

 (2)
 Do the BITE test of the ISIS indicator (Ref. TASK 34-22-25-740-001).

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 5. Close-up
________ Subtask 34-22-25-410-050
 A. Put the aircraft back to its initial configuration.
 (1)
 Install the thermoformed cover on the center instrument panel.

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

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______________________________________________________________ ADJUSTMENT/TEST
_______________ TASK 34-22-25-710-001 Operational Check of ISIS DC HOT Bus SUPPLY
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 342000-03
 Test of the correct power supply of ISIS DC HOT BUS in emergency
 configuration when the batteries are the only power supply source.

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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
　
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