Removal of the Multi Mode Receiver

TASK 34-36-31-000-001-B
Removal of the Multi Mode Receiver

ZONE: 121
ZONE: 122
FIN: 40RT1 ** ON A/C NOT FOR ALL
FIN: 40RT2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
121	AVIONICS COMPARTMENT
122	AVIONICS COMPARTMENT
811

C. Referenced Information

REFERENCE	DESIGNATION
TASK 31-32-00-860-010-A	Procedure to Get Access to the SYSTEM REPORT/TEST NAV Page
Multi Mode Receiver ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-36-31-810-053-A ** ON A/C NOT FOR ALL

A. Trouble Shooting Data
If available, you can print the Trouble Shooting Data (TSD) as follows:

get access to the SYSTEM/REPORT TEST NAV page (Ref. AMM TASK 31-32-00-860-010).
on this page, push the line key adjacent to the MMR1 (MMR2) indication.
on the MMR1 (MMR2) page, push the line key adjacent to the TROUBLE SHOOTING DATA indication to get the TROUBLE SHOOTING DATA page.
print the TROUBLE SHOOTING DATA (TSD) page(s).

Subtask 34-36-31-865-075-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 40RT1 (MMR1)
49VU	NAV/MMR/1	42RT1	G12
** ON A/C NOT FOR ALL
FOR FIN: 40RT2 (MMR2)
121VU	COM NAV/MMR/2	42RT2	K09
** ON A/C NOT FOR ALL
121VU	COM NAV/MMR/2	42RT2	L07

Subtask 34-36-31-010-058-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 811 in zone 122.
(2) Open the access door 811.

4. Procedure
Subtask 34-36-31-020-055-A ** ON A/C NOT FOR ALL

A. Removal of the Multi Mode Receiver (40RT1, 40RT2)
(1) Loosen the nuts (4).
(2) Lower the nuts (4).
(3) Pull the Multi Mode Receiver (1) from its rack (3) to disconnect the electrical connectors (2).
(4) Remove the Multi Mode Receiver (1) from its rack.
(5) Put CAP - BLANKING on the disconnected electrical connectors (2).

[Rev.10 from 2021] 2026.04.02 06:23:18 UTC