Installation of the Turbine Rear Frame Vibration Sensor [CFMB]

TASK 77-31-30-400-002-A
Installation of the Turbine Rear Frame Vibration Sensor

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** 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 10.5 and 9.5 lbf.in (0.12 and 0.11 m.daN )
No specific	Torque wrench: range to between 53 and 47 lbf.in (0.60 and 0.53 m.daN )
No specific	Torque wrench: range to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
No specific	Torque wrench: range to between 230 and 210 lbf.in (2.60 and 2.37 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2101)	graphite grease
(Material No.CP8004)	lockwire 0.6 mm (0.0236 in.) dia
(Material No.CP8005)	lockwire 0.6 mm (0.0236 in.) dia

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-710-003-B	Engine Automatic Start
TASK 71-00-00-710-028-B	Engine Shutdown
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 77-32-34-860-041-A	Change the configuration of the Accelerometer
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
TRF Vibration Sensor

3. Job Set-up
Subtask 77-31-30-860-051-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 77-31-30-010-059-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the left thrust reverser door is open: (Ref. AMM TASK 78-36-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL

Subtask 77-31-30-040-057-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 77-31-30-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the TRF Vibration Sensor
(1) Remove the CAP-BLANKING from each electrical connector and receptacle.
(2) Install the bracket (30) on the connector (20) as follows (Ref. Detail B):
(a) Lubricate threads of screws (10) with graphite grease (Material No.CP2101) .
(b) Attach the bracket (30) to the connector (20) with half-plates (60) and screws (10).
(c) TORQUE the screws (10) to between 10.5 and 9.5 lbf.in (0.12 and 0.11 m.daN )

.
(d) Safety the screws in pairs with a CP8004lockwire 0.6 mm (0.0236 in.) dia or CP8005lockwire 0.6 mm (0.0236 in.) dia.
(3) Set the TRF vibration sensor in position on the engine.
(4) Lubricate threads of bolts with graphite grease (Material No.CP2101) before installation.
(5) Attach the TRF vibration sensor to the engine as follows:

INSTALL	TO	NOTE
Bolts (40) Nuts (50)	Bracket (30) and flange P	Detail B

(6) TORQUE nuts (50) to between 230 and 210 lbf.in (2.60 and 2.37 m.daN )

INSTALL	TO	NOTE
Clamp (80) Bolt (70)	Bracket (90)	Detail D
Clamp (120) Bolt (110)	Bracket (100)	Detail C
Clamp (140) Bolt (150)	Bracket (130)	On flange S Detail E
Clamp (160) Bolt (170)	Bracket (190)	On the LPT cooling manifold Detail F
Clamp (200) Bolt (230)	Bracket (220)	On flange T Detail G
Bolts (240) Nuts (250)	TRF vibration sensor and flange T	Holes No.103 and 104 Detail H

(7) TORQUE nuts (250) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(8) Make sure that the TRF vibration sensor lead is not stressed.
(9) TORQUE bolts (70), (110), (150), (170) and (230) to between 53 and 47 lbf.in (0.60 and 0.53 m.daN )

.
(10) Make sure that the connector and receptacle are clean and clear of unwanted material.
(11) Connect the aircraft harness to the TRF sensor lead connector. Tighten by hand.
(12) Make sure that the connector is fully engaged and does not move.

5. Close-up
Subtask 77-31-30-410-057-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 left thrust-reverser door (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL

Subtask 77-31-30-440-055-A ** ON A/C NOT FOR ALL

B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 77-31-30-410-058-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

Subtask 77-31-30-710-051-A ** ON A/C NOT FOR ALL

D. Do this Following Test:
(1) Select the TRF vibration sensor through the MCDU (Ref. AMM TASK 77-32-34-860-041).
(2) Start the engine (Ref. AMM TASK 71-00-00-710-003)
(3) Make sure that vibration values are shown on the lower ECAM DU.
(4) Stop the engine (Ref. AMM TASK 71-00-00-710-028)
(5) Select the initial vibration sensor through the MCDU (Ref. AMM TASK 77-32-34-860-041).

[Rev.10 from 2021] 2026.04.02 07:41:21 UTC