Removal of the Engine Vibration Monitoring Unit (EVMU) [IAE]

TASK 77-32-34-000-041-A
Removal of the Engine Vibration Monitoring Unit (EVMU)

FIN: 2EV ** 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
824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
Engine Vibration Monitoring Unit (EVMU)

3. Job Set-up
Subtask 77-32-34-865-064-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2/EVMU	1EV	R44

Subtask 77-32-34-010-051-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the access door 824 (Ref. AMM TASK 52-41-00-010-002).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 77-32-34-020-051-B ** ON A/C NOT FOR ALL

A. Remove the EVMU.
(1) Loosen the knurled nuts (4).
(2) Lower the knurled nuts (4) to free the hooks (5).
(3) Pull the engine vibration monitoring unit (1) with the handle (3) until the connector (6) is disconnected.
(4) Remove the engine vibration monitoring unit (1) from its support (2).
(5) Put the CAP - BLANKING on the electrical connectors (6) and (7).

[Rev.10 from 2021] 2026.04.01 03:18:28 UTC