W DOC AIRBUS | AMM A320F

Installation of the VSV System Control Rods [IAE]


TASK 75-32-42-400-011-B
Installation of the VSV System Control Rods


FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
This task is for A5 basic (non SelectOne) engines and A5 SelectOne retrofit engines, which have not SBE 72-0564 incorporated.
This task gives the data for the installation of the VSV system control rods.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T
No specific
Torque wrench: range to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T
No specific
Torque wrench: range to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T
No specific
Torque wrench: range to between 220 and 205 lbf.in (2.49 and 2.32 m.daN ) T
No specific
Torque wrench: range to between 300 and 225 lbf.in (3.39 and 2.54 m.daN ) T
No specific
Torque wrench: range to between 370 and 290 lbf.in (4.18 and 3.28 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.V02-126)
lockwire
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
42
COTTER PIN
AIPC 72-41-34-80-010
45
COTTER PIN
AIPC 72-41-34-80-040
9
COTTER PIN
AIPC 72-41-34-80-160
16
COTTER PIN
AIPC 72-41-34-80-280
51
COTTER PIN
AIPC 72-41-34-80-400
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 70-23-11-911-013-A
General Torque Tightening Techniques
TASK 70-40-11-911-014-A
Locking Devices General Information
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 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
3. Job Set-up
Subtask 75-32-42-860-053-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).
Subtask 75-32-42-010-063-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowls are open: (Ref. AMM TASK 71-13-00-010-010)
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 75-32-42-040-053-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated: (Ref. AMM TASK 78-30-00-040-012)
Subtask 75-32-42-820-055-A ** ON A/C NOT FOR ALL
D. Make sure that all rig pins installed during removal are still in position.
F VSV System Rig Pin Positions ** ON A/C NOT FOR ALL
4. Procedure
Subtask 75-32-42-420-054-A ** ON A/C NOT FOR ALL
A. Install the control rod
Pre SBE 72-0366
SBE 72-0406
SBE 72-0406: Actuating mechanism HPC variable vanes - introduction of a fully machined from bar crankshaft assembly.

F VSV System Control Rods ** ON A/C NOT FOR ALL
F VSV Actuating Levers ** ON A/C NOT FOR ALL
F VSV Actuating Levers ** ON A/C NOT FOR ALL
F VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL
   (1) For the actuator control rod:
     (a) Put the control rod into position between the actuator ram and the crankshaft.
     (b) Attach the control rod to the actuator ram with the bolt (38), the washer (40) and the nut (39).
     (c) Attach the control rod to the crankshaft with the bolt (37), the washer (36) and the nut (35).
     (d) TORQUE the nuts (35) and (39) to between 370 and 290 lbf.in (4.18 and 3.28 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (2) For the VIGV control rod:
     (a) Put the control rod into position between the crankshaft and the VIGV unison ring.
     (b) Attach the control rod to the unison ring with the spacer (43) and the nut (41).
     (c) Attach the control rod to the crankshaft with the bolt (44) and the nut (46).
     (d) TORQUE the nuts (41) to between 300 and 225 lbf.in (3.39 and 2.54 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) Safety the nut (41) with a new AIPC 72-41-34-80-010 COTTER PIN (42) (Ref. AMM TASK 70-40-11-911-014).
     (f) TORQUE the nut (46) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (g) Safety the nut (46) with a new AIPC 72-41-34-80-040 COTTER PIN (45) (Ref. AMM TASK 70-40-11-911-014).
   (3) For the stage 3 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 3 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (4) and the nut (3).
     (c) Attach the control rod to the crankshaft with the bolt (5), the spacers (6) and (7), the washer (8) and the nut (10).
     (d) TORQUE the nut (3) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (10) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Safety the nut (10) with a new AIPC 72-41-34-80-160 COTTER PIN (9) (Ref. AMM TASK 70-40-11-911-014).
   (4) For the stage 4 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 4 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (2) and the nut (1).
     (c) Attach the control rod to the crankshaft with the bolt (11), the spacers (12) and (13), the washer (14) and the nut (15).
     (d) TORQUE the nut (1) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (15) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Safety the nut (15) with a new AIPC 72-41-34-80-280 COTTER PIN (16) (Ref. AMM TASK 70-40-11-911-014).
   (5) Pre SBE 72-0366: For the stage 5 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 5 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (47) and the nut (48).
     (c) Attach the control rod to the crankshaft with the bolt (49), the spacers (34) and (50), the washer (33) and the nut (32).
     (d) TORQUE the nut (48) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (32) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Safety the nut (32) with a new AIPC 72-41-34-80-400 COTTER PIN (51) (Ref. AMM TASK 70-40-11-911-014).
   (6) SBE 72-0406: For the stage 5 control rod:
     (a) Put the control rod in to position between the crankshaft and the stage 5 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (47) and the nut (48).
     (c) Attach the control rod to the crankshaft with the retaining pin (54) and attach the retaining pin to the crankshaft with the bolt (52) and the washer (53). Refer to the view at J.
F VSV Actuating Levers ** ON A/C NOT FOR ALL
     (d) TORQUE the nut (48) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the bolt (52) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
Subtask 75-32-42-420-060-A ** ON A/C NOT FOR ALL
B. Install the control rod
SBE 72-0366
SBE 72-0366: Actuating mechanism HPC variable vanes - introduction of a revised crankshaft assembly

F VSV System Control Rods ** ON A/C NOT FOR ALL
F VSV Actuating Levers ** ON A/C NOT FOR ALL
F VSV Actuating Levers ** ON A/C NOT FOR ALL
   (1) For the actuator control rod:
     (a) Put the control rod into position between the actuator ram and the crankshaft.
     (b) Attach the control rod to the actuator ram with the bolt (38), the washer (40) and the nut (39).
     (c) Attach the control rod to the crankshaft with the bolt (37), the washer (36) and the nut (35).
     (d) TORQUE the nuts (35) and (39) to between 370 and 290 lbf.in (4.18 and 3.28 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (2) For the VIGV control rod:
     (a) Put the control rod into position between the crankshaft and the VIGV unison ring.
     (b) Attach the control rod to the unison ring with the spacer (43) and the nut (41).
     (c) Attach the control rod to the crankshaft with the bolt (55), spacers (56 and 57)washer (58), nut (59). Refer to the view at F.
     (d) TORQUE the nuts (41) to between 300 and 225 lbf.in (3.39 and 2.54 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) Safety the nut (41) with a new AIPC 72-41-34-80-010 COTTER PIN (42) (Ref. AMM TASK 70-40-11-911-014).
     (f) TORQUE the nut (59) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (g) Safety the nut (59) with a new AIPC 72-41-34-80-040 COTTER PIN (45) (Ref. AMM TASK 70-40-11-911-014).
   (3) For the stage 3 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 3 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (4) and the nut (3).
     (c) Attach the control rod to the crankshaft with the bolt (5), the spacers (6) and (7), the washer (8) and the nut (10).
     (d) TORQUE the nut (3) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (10) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Safety the nut (10) with a new AIPC 72-41-34-80-160 COTTER PIN (9) (Ref. AMM TASK 70-40-11-911-014).
   (4) For the stage 4 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 4 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (2) and the nut (1).
     (c) Attach the control rod to the crankshaft with the bolt (11), the spacers (12) and (13), the washer (14) and the nut (15).
     (d) TORQUE the nut (1) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (15) to between 210 and 170 lbf.in (2.37 and 1.92 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Safety the nut (15) with a new AIPC 72-41-34-80-280 COTTER PIN (16) (Ref. AMM TASK 70-40-11-911-014).
   (5) For the stage 5 control rod:
     (a) Put the control rod into position between the crankshaft and the stage 5 unison ring.
     (b) Attach the control rod to the unison ring with the bolt (47) and the nut (48).
     (c) Attach the control rod to the crankshaft with the retaining pin (54) and attach the retaining pin to the crankshaft with the bolt (52) and the washer (53).Refer to the view at J.
     (d) TORQUE the nut (48) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) TORQUE the nut (52) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
Subtask 75-32-42-820-051-A ** ON A/C NOT FOR ALL
C. Adjust the VSV stage 3 to 5 control rod, if necessary
F Control Rod Adjustment ** ON A/C NOT FOR ALL
F Control Rod Adjustment ** ON A/C NOT FOR ALL
   (1) If a control rod bolt is not easy to install, adjust the applicable control rod as follows:

PRE SBE 72-0538

     (a) Remove the wire that safeties the locknuts of the control rod.

END OF PRE SBE 72-0538

POST SBE 72-0538

     (b) Remove the wire that safeties the locknuts and the locking washers of the control rod.

END OF POST SBE 72-0538

     (c) Loosen the locknuts of the control rod.
NOTE: One of the locknuts has a left hand thread.
     (d) Turn the center part of the control rod, to adjust the length of the control rod, until the bolt can be easily installed.
     (e) TORQUE the two locknuts to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (f) Make sure that the control rod ends are aligned to less than 5 degrees.
     (g) Make sure that the control rod ends are in safety.

PRE SBE 72-0538

     (h) Safety the locknuts to the control rod ends with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).

END OF PRE SBE 72-0538

POST SBE 72-0538

     (i) Safety the locknuts and the locking washers to the control rod ends with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).

END OF POST SBE 72-0538

NOTE: One of the locknuts has left hand thread.
   (2) Remove the rig pins
CAUTION: YOU MUST MAKE SURE THAT ALL THE RIG PINS ARE REMOVED BEFORE THE ENGINE IS OPERATED. THE VSV MECHANISM WILL BE DAMAGED IF THE PINS ARE NOT REMOVED AND THE ENGINE IS OPERATED.
     (a) Remove all the rig pins from the unison rings, the crankshaft and the actuator ram.
F VSV System Rig Pin Positions ** ON A/C NOT FOR ALL
Subtask 75-32-42-820-074-A ** ON A/C NOT FOR ALL
D. Adjust the VIGV control rod, if necessary
F Control Rod Adjustment ** ON A/C NOT FOR ALL
F Control Rod Adjustment ** ON A/C NOT FOR ALL
   (1) If a control rod bolt is not easy to install, adjust the applicable control rod as follows:
     (a) Remove the wire that safeties the locknuts and the locking washers of the control rod.
     (b) Loosen the locknuts of the control rod.
NOTE: One of the locknuts has a left hand thread.
     (c) Turn the center part of the control rod, to adjust the length of the control rod, until the bolt can be easily installed.
     (d) TORQUE the two locknuts to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) Make sure that the control rod ends are aligned to less than 5 degrees.
     (f) Make sure that the control rod ends are in safety.
     (g) Safety the locknuts and the locking washers to the control rod ends with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
NOTE: One of the locknuts has left hand thread.
   (2) Remove the rig pins
CAUTION: YOU MUST MAKE SURE THAT ALL THE RIG PINS ARE REMOVED BEFORE THE ENGINE IS OPERATED. THE VSV MECHANISM WILL BE DAMAGED IF THE PINS ARE NOT REMOVED AND THE ENGINE IS OPERATED.
     (a) Remove all the rig pins from the unison rings, the crankshaft and the actuator ram.
F VSV System Rig Pin Positions ** ON A/C NOT FOR ALL
Subtask 75-32-42-820-076-A ** ON A/C NOT FOR ALL
E. Adjust the Actuator Control Rod, if necessary
F VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL
F Control Rod Adjustment ** ON A/C NOT FOR ALL
   (1) If a control rod bolt is not easy to install, adjust the applicable control rod as follows:
     (a) Remove the wire that safeties the locknuts of the control rod.
     (b) Loosen the locknuts of the control rod.
NOTE: One of the locknuts has a left hand thread.
     (c) Turn the center part of the control rod, to adjust the length of the control rod, until the bolt can be easily installed.
     (d) TORQUE the two locknuts to between 220 and 205 lbf.in (2.49 and 2.32 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
     (e) Make sure that the control rod ends are aligned to less than 5 degrees.
     (f) Make sure that the control rod ends are in safety.
     (g) Safety the locknuts.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       1 Safety the locknuts to the control rod ends with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
NOTE: One of the locknuts has left hand thread.
   (2) Remove the rig pins
CAUTION: YOU MUST MAKE SURE THAT ALL THE RIG PINS ARE REMOVED BEFORE THE ENGINE IS OPERATED. THE VSV MECHANISM WILL BE DAMAGED IF THE PINS ARE NOT REMOVED AND THE ENGINE IS OPERATED.
     (a) Remove all the rig pins from the unison rings, the crankshaft and the actuator ram.
F VSV System Rig Pin Positions ** ON A/C NOT FOR ALL
5. Close-up
Subtask 75-32-42-410-067-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 thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 75-32-42-440-054-A ** ON A/C NOT FOR ALL
B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).
Subtask 75-32-42-410-079-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) 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.
   (2) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:12:08 UTC