S 014-053
(2) Do the tasks in the steps that follow, as necessary, to get access to the relays.
(a) Airbore Vibration Monitor Signal Conditioner Removal
(AMM 77-31-03/401). ú (b) Selcal Decoder Unit Removal (AMM 23-28-11/401).
(c) IRS Transfer Relay Removal (AMM 34-28-92/401)
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S 024-007
(3) Do these steps to remove the FMCS transfer relay:
(a)
Disconnect the electrical connector from the applicable FMCS transfer relay.
(b)
Remove the screws from the bracket.
(c)
Remove the FMCS transfer relay.
TASK 34-62-51-404-008
3. FMCS Transfer Relay Installation________________________________
A. References
(1)
AMM 23-28-11/401, Selcal Decoder Unit
(2)
AMM 24-22-00/201, Electrical Power - Control
(3)
AMM 34-28-92/401, IRS Transfer Relay
(4)
AMM 77-31-03/401, Airborne Vibration Monitor Signal Conditioner
B. Access
(1)
Location Zone
205 Electronic Compartment
(2)
Access Panel
1201 Electronic Equipment Access Door
C. Procedure
S 864-009
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P18-2 Circuit Breaker Panel
1) FMCS CMPTR No. 1
(b)
P6-1 Circuit Breaker Panel
1) FMCS CMPTR No. 2
2) FMCS XFER
S 014-010
(2) Do these tasks as necessary:
(a)
Airborne Vibration Monitor Signal Coditioner Removal (AMM 77-31-03/401)
(b)
Selcal Decoder Unit Removal (AMM 23-28-11/401)
(c)
IRS Transfer Relays Removal (AMM 34-28-92/401)
S 424-014
(3) Install the FMCS transfer relay:
(a)
Put the FMCS transfer relay in the applicable bracket.
(b)
Install the screws.
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(c) Connect the applicable electrical connectors to the FMCS transfer relay.
S 414-054
(4) Do these tasks as necessary:
(a)
Airborne Vibration Monitor Signal Coditioner Installation (AMM 77-31-03/401)
(b)
Selcal Decoder Unit Installation (AMM 23-28-11/401)
(c)
IRS Transfer Relays Installation (AMM 34-28-92/401)
D. Prepare for the FMCS Transfer Relay Test
S 864-015
(1)
Supply the electrical power (AMM 24-22-00/201).
S 864-016
(2)
Make sure the BAT switch on the pilots' forward overhead panel is in the ON position.
S 864-017
(3)
Make sure the STANDBY POWER switch on the pilots' forward overhead panel is in the AUTO position.
S 864-018
(4)
Make sure the FMCS Source Select Switch on the pilots' forward overhead panel is in the NORMAL position.
S 864-020
(5)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P18-2 Circuit Breaker Panel
1) FMCS CMPTR No. 1
(b)
P6-1 Circuit Breaker Panel
1) FMCS CMPTR No. 2
2) FMCS XFER
E. FMCS Transfer Relay Test
S 864-034
(1) Open this circuit breaker:
NOTE: Make sure this cicuit breaker has been closed for at least 15
____
seconds.
(a) Panel P18
1) FMCS CMPTR No. 1
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