Installation of the Vibration Transducer [IAE]

TASK 77-32-15-400-010-B
Installation of the Vibration Transducer

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 400
FIN: 4004EV1 ** 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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 40 and 30 lbf.in (0.45 and 0.34 m.daN )
No specific	Torque wrench: range to between 38.5 and 31.5 lbf.in (0.44 and 0.36 m.daN )
No specific	Torque wrench: range to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-002)	cleaning fluid
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
11	PACKING	AIPC 77-32-15-80-335

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 77-32-15-000-010-B	Removal of the Vibration Transducer
TASK 77-32-34-710-041-A	Operational Check of EVMU through CFDS
Vibration Transducer

3. Job Set-up
Subtask 77-32-15-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

Subtask 77-32-15-010-053-A ** ON A/C NOT FOR ALL

B. Make sure that the fan cowls are open (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 77-32-15-630-051-A ** ON A/C NOT FOR ALL

C. Remove the applicable covers/caps/plugs from the openings.

Subtask 77-32-15-110-051-A ** ON A/C NOT FOR ALL

D. Clean the Parts

Vibration Transducer ** ON A/C NOT FOR ALL

(1) Use the Textile-Lint free Cotton - (Material No.14SBA1) , made moist with the cleaning fluid (Material No.V01-002) to clean these parts:
(a) The nuts (7) and (24).
(b) The bolts (4), (22), (25) and (27).
(c) The bracket (6).
(d) The clips.
(e) The electrical receptacles (3) and (5).
(f) The electrical connectors (1) and (2).
(g) The interface of the engine fan case.

4. Procedure
Subtask 77-32-15-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Vibration Transducer

Vibration Transducer ** ON A/C NOT FOR ALL

(1) Install the transducer.
(a) Install the new AIPC 77-32-15-80-335 PACKING (11) to the mounting plate (10) (Ref. AMM TASK 70-23-13-911-010).
(b) Attach the transducer (9) and the mounting plate (10) to the fan case with the bolts (8).
(c) TORQUE the bolts (8) to between 40 and 30 lbf.in (0.45 and 0.34 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(2) Connect the transducer connector bracket (6).
(a) Attach the bracket (6) with the transducer cable receptacles (3) and (5) fitted, to flange B with the bolts (4) and the nuts (7).
(b) TORQUE the nuts (7) to between 38.5 and 31.5 lbf.in (0.44 and 0.36 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(c) Connect the electrical connectors (1) and (2) (Ref. AMM TASK 70-23-15-912-010) to the receptacles (3) and (5) at the positions identified when removed (Ref. AMM TASK 77-32-15-000-010).
(3) Connect the transducer cables to the clip positions.
(4) At the clip positions D, attach the clip to the brackets with the washers (28) and the bolts (27).
(5) At the clip positions C, attach the clips to the brackets with the washers (26) and the bolts (25).
(6) At the clip position B, attach the clips to the bracket with the washer (23), bolt (22) and nut (24).
(7) TORQUE the nut (24) and the bolts (25) and (27) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

5. Close-up
Subtask 77-32-15-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 77-32-15-710-051-A ** ON A/C NOT FOR ALL

B. Test Requirements
(1) Dry motor leak check (Ref. AMM TASK 71-00-00-710-045).
(2) Do an operational test of the EVMU (Ref. AMM TASK 77-32-34-710-041) and make sure that on CFDS no fault related to the vibration transducer is shown.

[Rev.10 from 2021] 2026.04.01 03:18:27 UTC