DOC AIRBUS | AMM A320FAdjustment of the Rudder Mechanical Control
TASK 27-21-00-820-003-A
Adjustment of the Rudder Mechanical Control
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 27-21-00-860-052-A
Subtask 27-21-00-820-056-B ** ON A/C NOT FOR ALL
(1) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (1) on the connection relay of the CAPT rudder pedals (10).
(2) Push the pin of the transducer unit (8).
(a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (9) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(3) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (1) on the connection relay of the F/O pedals (2). You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (5).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (5) until you can install and remove the rigging pin (1) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in )
.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03in.).
(4) Push the pin of the transducer unit (3).
(a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (4) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(5) Remove the rigging pin (1) from the connection relay of the F/O rudder pedals.
(6) Install the rigging pin (1) on the input lever of the tension regulator (7).
You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (6).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (6) until you can install and remove the rigging pin (1) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in ).
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(i) Remove the rigging pin (1) from the connection relay of the CAPT rudder pedals (10).
Subtask 27-21-00-820-056-C ** ON A/C NOT FOR ALL
(1) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the connection relay of the CAPT rudder pedals (60).
(2) Push the pin of the transducer unit (58).
(a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (59) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(3) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the connection relay of the F/O pedals (52). You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (55).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (55) until you can install and remove the rigging pin (51) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in ).
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03in.).
(4) Push the pin of the transducer unit (53).
(a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (54) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(5) Remove the rigging pin (51) from the connection relay of the F/O rudder pedals.
(6) Adjustment of the Force Transducer Unit (FTU) (56).
(a) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the input lever of the cable tension regulator (57).
If you cannot engage the rigging pin (51) freely, adjust the lenght of the FTU (56), as follows:
(b) Install the 98A27103500000 PROTECTION TOOL-FTU:
1 Engage the upper and lower web (64) between the FTU (56) and the tension regulator (57).
2 Install the bolt (63) and tighten.
(c) Install the 98A27103500001 PROTECTION TOOL-FTU:
1 Engage the upper and lower web (62) between the FTU (56) and the bellcranck (61).
2 Install the bolt (63) and tighten.
(d) Adjust the FTU (56):
1 Cut and discard the lockwires.
2 Loosen the nuts (72) and (75) and disengage the lockwashers (71) and (74).
3 Turn the rod body (73) until you can engage the rigging pin.
4 Engage the lockwashers (71) and (74) and TORQUE the nut (72) to between 1.32 and 1.08 m.daN (116.81 and 95.58 lbf.in ) and the nut (75) to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) . Do not safety at this time.
(e) Remove the 98A27103500000 PROTECTION TOOL-FTU.
(f) Remove the 98A27103500001 PROTECTION TOOL-FTU.
(g) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(h) Remove the rigging pin (51) from the input lever of the cable tension regulator (57).
(i) Remove the rigging pin (51) from the connection relay of the F/O rudder pedals.
Subtask 27-21-00-820-057-A
Subtask 27-21-00-942-068-A
[Rev.10 from 2021]
2026.03.31 23:47:52 UTC
Adjustment of the Rudder Mechanical Control
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE |
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | Torque wrench: range to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) | |
| No specific | Torque wrench: range to between 1.32 and 1.08 m.daN (116.81 and 95.58 lbf.in ) | |
| No specific | Torque wrench: range to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in ) | |
| 98A27103500000 | 1 | PROTECTION TOOL-FTU |
| 98A27103500001 | 1 | PROTECTION TOOL-FTU |
| 98A27901002000 | 2 | PIN-RIGGING,RUDDER CONTROL |
| 98D27207516000 | 1 | PIN-RIGGING,SET |
| 98D27207545000 | 1 | PIN-RIGGING |
| 98D27207546000 | 1 | PIN-RIGGING |
| 98D27207547000 | 1 | PIN-RIGGING |
| 98D27207548000 | 1 | PIN-RIGGING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| No specific | lockwire corrosion resistant steel dia 0.8 mm (0.03 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 120 | AVIONICS COMPARTMENT |
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 312 | AFT FUSLG TAIL SECTION |
| 325 | VERTICAL STABILIZER TRAILING EDGE |
| 211GF, 312AR, 325BL, 325BR, 325CL, 325CR, 325DL, 325DR, 325EL, 325ER, 811, 822 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 30 | COTTER PIN | AIPC 27-21-04-11-050 |
| 38 | COTTER PINS | AIPC 27-21-04-22-470 |
| 38 | COTTER PINS | AIPC 27-21-84-12-080 |
| 30 | COTTER PIN | AIPC 27-21-84-13-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 27-21-00-720-002-A | Functional Test of the Rudder Mechanical Control |
| TASK 27-21-00-820-002-A | Adjustment of the Rudder Control-Cables Length |
| TASK 27-21-00-840-001-A | Removal/Installation of the control rod on the rudder mechanical control |
| TASK 27-22-00-820-001-A | Adjustment of the Rudder Trim Actuation |
| TASK 27-24-00-820-001-A | Adjustment of the Rudder Neutral Position |
| TASK 27-24-00-820-001-A-01 | Adjustment of the Rudder Neutral Position |
| TASK 27-24-00-820-001-B | Adjustment of the Rudder Neutral Position |
| TASK 27-26-00-820-001-A | Adjustment of the Yaw Damper Actuation |
| TASK 29-10-00-863-003-A | Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-863-003-A-01 | Pressurize the Blue Hydraulic System with the Blue Electric Pump |
| TASK 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| TASK 29-23-00-863-001-A | Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump |
| TASK 29-23-00-864-001-A | Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU |
| TASK 29-24-00-863-001-A | Pressurize the Yellow Hydraulic System with the Electric Pump |
| TASK 29-24-00-864-001-A | Depressurize the Yellow Hydraulic System |
| TASK 53-12-11-000-001-A | Removal of the Cockpit Floor Panels from FR1 thru FR12 |
| TASK 53-12-11-400-001-A | Installation of the Cockpit Floor Panels from FR1 thru FR12 |
| TASK 27-21-61-000-001-A | Removal of the Rudder Control Cables (for corrective action) |
| TASK 27-21-61-400-001-A | Installation of the Rudder Control Cables (for corrective action) |
Rudder Mechanical ControlSubtask 27-21-00-860-052-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead panel 23VU, make sure that:
(5) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator is at 0.
(6) Depressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(7) Put warning notices on the CAPT and F/O pedals to tell persons not to use the rudder.
(8) Put a warning notice on the panel 110VU to tell persons not to use the rudder trim.
Subtask 27-21-00-010-062-A (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead panel 23VU, make sure that:
- the FLT CTL/FAC1 and FLT CTL/ELAC1 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).
- the FLT CTL/FAC2 and FLT CTL/ELAC2 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).
(5) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator is at 0.
(6) Depressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(7) Put warning notices on the CAPT and F/O pedals to tell persons not to use the rudder.
(8) Put a warning notice on the panel 110VU to tell persons not to use the rudder trim.
B. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at zone 121.
(2) Open the access door 811.
(3) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 312.
(4) Open the access door 312AR.
(5) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(6) Open the access doors 325BL 325BR 325CL 325CR 325DL 325DR 325EL 325ER.
(7) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE at the access door 822.
(8) Open the access door 822.
(9) On the battery power center 105VU:
Subtask 27-21-00-865-054-A (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at zone 121.
(2) Open the access door 811.
(3) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 312.
(4) Open the access door 312AR.
(5) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(6) Open the access doors 325BL 325BR 325CL 325CR 325DL 325DR 325EL 325ER.
(7) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE at the access door 822.
(8) Open the access door 822.
(9) On the battery power center 105VU:
- Loosen the two screws and remove the protective cover.
C. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 27-21-00-860-066-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
D. Remove the control rod (25) between the mixer (41) and the cable quadrant (24) (Ref. AMM TASK 27-21-00-840-001).
4. ProcedureSubtask 27-21-00-820-056-B ** ON A/C NOT FOR ALL
CAUTION:
BE CAREFUL WHEN YOU USE THE RIGGING PIN ON THE TRANSDUCER UNIT.
DO NOT USE FORCE TO ENGAGE THE RIGGING PIN IN THE TRANSDUCER UNIT. IF YOU USE FORCE, THE RIGGING PIN WILL NOT DISENGAGE FREELY AND DAMAGE TO THE TRANSDUCER UNIT CAN OCCUR.
A. Adjustment of the Forward Mechanical Control (1) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (1) on the connection relay of the CAPT rudder pedals (10).
(2) Push the pin of the transducer unit (8).
NOTE: The pin is part of the transducer unit (8).
You must push the pin freely. If this is not the case, adjust the length of the rod (9) as follows : (a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (9) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(3) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (1) on the connection relay of the F/O pedals (2). You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (5).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (5) until you can install and remove the rigging pin (1) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in )
. (g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03in.).
(4) Push the pin of the transducer unit (3).
NOTE: The pin is part of the transducer unit (3).
You must push the pin freely. If this is not the case, adjust the length of the rod (4) as follows : (a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (4) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(5) Remove the rigging pin (1) from the connection relay of the F/O rudder pedals.
(6) Install the rigging pin (1) on the input lever of the tension regulator (7).
You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (6).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (6) until you can install and remove the rigging pin (1) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in )
. (g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(i) Remove the rigging pin (1) from the connection relay of the CAPT rudder pedals (10).
CAUTION:
BE CAREFUL WHEN YOU USE THE RIGGING PIN ON THE TRANSDUCER UNIT.
DO NOT USE FORCE TO ENGAGE THE RIGGING PIN IN THE TRANSDUCER UNIT. IF YOU USE FORCE, THE RIGGING PIN WILL NOT DISENGAGE FREELY AND DAMAGE TO THE TRANSDUCER UNIT CAN OCCUR.
A. Adjustment of the Forward Mechanical Control (1) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the connection relay of the CAPT rudder pedals (60).
(2) Push the pin of the transducer unit (58).
NOTE: The pin is part of the transducer unit (58).
You must push the pin freely. If this is not the case, adjust the length of the rod (59) as follows : (a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (59) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(3) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the connection relay of the F/O pedals (52). You must install and remove the rigging pin easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (55).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (55) until you can install and remove the rigging pin (51) freely.
(e) Engage the lockwashers.
(f) TORQUE the nuts to between 1.51 and 1.24 m.daN (133.63 and 109.73 lbf.in )
. (g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03in.).
(4) Push the pin of the transducer unit (53).
NOTE: The pin is part of the transducer unit (53).
You must push the pin freely. If this is not the case, adjust the length of the rod (54) as follows : (a) Cut and remove the lockwire from the nuts.
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (54) until you can push the pin freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(5) Remove the rigging pin (51) from the connection relay of the F/O rudder pedals.
(6) Adjustment of the Force Transducer Unit (FTU) (56).
(a) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (51) on the input lever of the cable tension regulator (57).
If you cannot engage the rigging pin (51) freely, adjust the lenght of the FTU (56), as follows:
(b) Install the 98A27103500000 PROTECTION TOOL-FTU:
1 Engage the upper and lower web (64) between the FTU (56) and the tension regulator (57).
2 Install the bolt (63) and tighten.
(c) Install the 98A27103500001 PROTECTION TOOL-FTU:
1 Engage the upper and lower web (62) between the FTU (56) and the bellcranck (61).
2 Install the bolt (63) and tighten.
(d) Adjust the FTU (56):
1 Cut and discard the lockwires.
2 Loosen the nuts (72) and (75) and disengage the lockwashers (71) and (74).
3 Turn the rod body (73) until you can engage the rigging pin.
4 Engage the lockwashers (71) and (74) and TORQUE the nut (72) to between 1.32 and 1.08 m.daN (116.81 and 95.58 lbf.in )
and the nut (75) to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) . Do not safety at this time. (e) Remove the 98A27103500000 PROTECTION TOOL-FTU.
(f) Remove the 98A27103500001 PROTECTION TOOL-FTU.
(g) Safety the nuts with lockwire corrosion resistant steel dia 0.8 mm (0.03 in.).
(h) Remove the rigging pin (51) from the input lever of the cable tension regulator (57).
(i) Remove the rigging pin (51) from the connection relay of the F/O rudder pedals.
B. Adjustment of the Cable Tension
(1) Adjust the tension of the cables (Ref. AMM TASK 27-21-00-820-002).
Subtask 27-21-00-820-058-A (1) Adjust the tension of the cables (Ref. AMM TASK 27-21-00-820-002).
NOTE: After the adjustment, remove the rigging pins.
NOTE: If you cannot adjust the control cables, do a visual inspection on the pulleys and the tension regulator. If they are in good condition, replace the control cables (Ref. AMM TASK 27-21-61-000-001) (Ref. AMM TASK 27-21-61-400-001).
C. Adjustment of the Rear Mechanical Control
(1) Disconnect the centering spring rod (15) as follows:
(a) Remove the cotter pin (30) and discard it.
(b) Remove the nut (31) and the washer (32).
(c) Remove the bolt (33) and disconnect the centering spring rod (15).
(2) Install the 98D27207547000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (42) on the cable quadrant (24).
(3) Install the 98D27207548000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (40) on the mixer (41) of the artificial feel unit.
(4) Install the control rod (25) (Ref. AMM TASK 27-21-00-840-001).
You must be able to install the bolts of the rod (25) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (25).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (25) until you can push the bolts in freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(5) Adjust the rudder trim (Ref. AMM TASK 27-22-00-820-001).
(6) Adjust the yaw damper (Ref. AMM TASK 27-26-00-820-001).
(7) Install the 98D27207546000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (39) on the output bellcrank of the lower servocontrol (21).
You must install and remove the rigging pin (39) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (23).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (23) until you can install and remove the rigging pin (39) freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(8) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (35) on the left input lever of the travel limitation unit (27).
You must install and remove the rigging pin (35) easily.
If not, do these operations :
(a) Remove and discard the cotter pins (38).
(b) Loosen the nuts (37).
(c) Remove the retainers (36).
(d) Cut and remove the lockwire from the nuts of the rod (26).
(e) Loosen the nuts.
(f) Release the lockwashers.
(g) Adjust the length of the rod (26) until you can install and remove the rigging pin (35) freely.
(h) Engage the lockwashers.
(i) Tighten the nuts.
(j) Make sure that the adjustment is correct after you have tightened the nuts.
(k) Safety the nuts with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(l) Put the rod retainers (36) in position. Tighten the nuts (37). Install the new AIPC 27-21-04-22-470 COTTER PINS (38) or AIPC 27-21-84-12-080 COTTER PINS (38).
(9) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (29) on the output bellcrank of the centering spring rod (15).
You must install and remove the rigging pin (29) easily.
If not, do these operations :
(a) Remove and discard the cotter pins (38).
(b) Loosen the nuts (37).
(c) Remove the retainers (36).
(d) Cut and remove the lockwire from the nuts of the rod (28).
(e) Loosen the nuts.
(f) Release the lockwashers.
(g) Adjust the length of the rod (28) until you can install and remove the rigging pin (29) freely.
(h) Engage the lockwashers.
(i) Tighten the nuts.
(j) Make sure that the adjustment is correct after you have tightened the nuts.
(k) Safety the nuts with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(l) Put the rod retainers (36) in position. Tighten the nuts (37). Install the new AIPC 27-21-04-22-470 COTTER PINS (38) or AIPC 27-21-84-12-080 COTTER PINS (38).
(10) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (34) on the right input lever of the travel limitation unit (27).
You must install and remove the rigging pin (34) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (16).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (16) until you can install and remove the rigging pin (34) freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(11) Install the centering spring rod (15) as follows:
(a) Adjust the length of the centering spring rod (15).
(b) Install the bolt (33) and the centering spring rod (15).
(c) Install the washer (32) and the nut (31).
(d) Tighten the nuts.
(e) Install the new AIPC 27-21-04-11-050 COTTER PIN (30) or AIPC 27-21-84-13-010 COTTER PIN (30).
Subtask 27-21-00-820-059-A (1) Disconnect the centering spring rod (15) as follows:
(a) Remove the cotter pin (30) and discard it.
(b) Remove the nut (31) and the washer (32).
(c) Remove the bolt (33) and disconnect the centering spring rod (15).
(2) Install the 98D27207547000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (42) on the cable quadrant (24).
(3) Install the 98D27207548000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (40) on the mixer (41) of the artificial feel unit.
(4) Install the control rod (25) (Ref. AMM TASK 27-21-00-840-001).
You must be able to install the bolts of the rod (25) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (25).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (25) until you can push the bolts in freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with
(5) Adjust the rudder trim (Ref. AMM TASK 27-22-00-820-001).
(6) Adjust the yaw damper (Ref. AMM TASK 27-26-00-820-001).
(7) Install the 98D27207546000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (39) on the output bellcrank of the lower servocontrol (21).
You must install and remove the rigging pin (39) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (23).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (23) until you can install and remove the rigging pin (39) freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with
(8) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (35) on the left input lever of the travel limitation unit (27).
You must install and remove the rigging pin (35) easily.
If not, do these operations :
(a) Remove and discard the cotter pins (38).
(b) Loosen the nuts (37).
(c) Remove the retainers (36).
(d) Cut and remove the lockwire from the nuts of the rod (26).
(e) Loosen the nuts.
(f) Release the lockwashers.
(g) Adjust the length of the rod (26) until you can install and remove the rigging pin (35) freely.
(h) Engage the lockwashers.
(i) Tighten the nuts.
(j) Make sure that the adjustment is correct after you have tightened the nuts.
(k) Safety the nuts with
(l) Put the rod retainers (36) in position. Tighten the nuts (37). Install the new AIPC 27-21-04-22-470 COTTER PINS (38) or AIPC 27-21-84-12-080 COTTER PINS (38).
(9) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (29) on the output bellcrank of the centering spring rod (15).
You must install and remove the rigging pin (29) easily.
If not, do these operations :
(a) Remove and discard the cotter pins (38).
(b) Loosen the nuts (37).
(c) Remove the retainers (36).
(d) Cut and remove the lockwire from the nuts of the rod (28).
(e) Loosen the nuts.
(f) Release the lockwashers.
(g) Adjust the length of the rod (28) until you can install and remove the rigging pin (29) freely.
(h) Engage the lockwashers.
(i) Tighten the nuts.
(j) Make sure that the adjustment is correct after you have tightened the nuts.
(k) Safety the nuts with
(l) Put the rod retainers (36) in position. Tighten the nuts (37). Install the new AIPC 27-21-04-22-470 COTTER PINS (38) or AIPC 27-21-84-12-080 COTTER PINS (38).
(10) Install the 98D27207545000 PIN-RIGGING or 98D27207516000 PIN-RIGGING,SET (34) on the right input lever of the travel limitation unit (27).
You must install and remove the rigging pin (34) easily.
If not, do these operations :
(a) Cut and remove the lockwire from the nuts of the rod (16).
(b) Loosen the nuts.
(c) Release the lockwashers.
(d) Adjust the length of the rod (16) until you can install and remove the rigging pin (34) freely.
(e) Engage the lockwashers.
(f) Tighten the nuts.
(g) Make sure that the adjustment is correct after you have tightened the nuts.
(h) Safety the nuts with
(11) Install the centering spring rod (15) as follows:
(a) Adjust the length of the centering spring rod (15).
(b) Install the bolt (33) and the centering spring rod (15).
(c) Install the washer (32) and the nut (31).
(d) Tighten the nuts.
(e) Install the new AIPC 27-21-04-11-050 COTTER PIN (30) or AIPC 27-21-84-13-010 COTTER PIN (30).
D. Adjustment of the Rudder Neutral Position
(1) Adjust the rudder neutral position (Ref. AMM TASK 27-24-00-820-001).
Subtask 27-21-00-710-054-A ** ON A/C NOT FOR ALL (1) Adjust the rudder neutral position (Ref. AMM TASK 27-24-00-820-001).
E. Test
(1) Preparation for the Test.
(a) Remove the rigging pins (1):
1 From the connection relay of the CAPT rudder pedals (10).
2 From the connection relay of the F/O rudder pedals (2).
3 From the tension regulator (7).
(b) Remove the rigging pin (42) from the cable quadrant (24).
(c) Remove the rigging pin (39) from the output bellcrank of the servocontrol (21).
(d) Remove the rigging pins (34) and (35) from the input levers of the travel limitation unit (27).
(e) Remove the rigging pin (40) from the mixer (41) of the artificial feel unit.
(f) Remove the rigging pin (29) from the output bellcrank of the centering spring-rod (15).
(2) Do the functional test of the rudder mechanical control (Ref. AMM TASK 27-21-00-720-002).
Subtask 27-21-00-710-054-B ** ON A/C NOT FOR ALL (1) Preparation for the Test.
(a) Remove the rigging pins (1):
1 From the connection relay of the CAPT rudder pedals (10).
2 From the connection relay of the F/O rudder pedals (2).
3 From the tension regulator (7).
(b) Remove the rigging pin (42) from the cable quadrant (24).
(c) Remove the rigging pin (39) from the output bellcrank of the servocontrol (21).
(d) Remove the rigging pins (34) and (35) from the input levers of the travel limitation unit (27).
(e) Remove the rigging pin (40) from the mixer (41) of the artificial feel unit.
(f) Remove the rigging pin (29) from the output bellcrank of the centering spring-rod (15).
(2) Do the functional test of the rudder mechanical control (Ref. AMM TASK 27-21-00-720-002).
E. Test
(1) Preparation for the Test.
(a) Remove the rigging pins (51):
1 From the connection relay of the CAPT rudder pedals (60).
2 From the connection relay of the F/O rudder pedals (52).
3 From the tension regulator (57).
(b) Remove the rigging pin (42) from the cable quadrant (24).
(c) Remove the rigging pin (39) from the output bellcrank of the servocontrol (21).
(d) Remove the rigging pins (34) and (35) from the input levers of the travel limitation unit (27).
(e) Remove the rigging pin (40) from the mixer (41) of the artificial feel unit.
(f) Remove the rigging pin (29) from the output bellcrank of the centering spring-rod (15).
(2) Do the functional test of the rudder mechanical control (Ref. AMM TASK 27-21-00-720-002).
5. Close-up(1) Preparation for the Test.
(a) Remove the rigging pins (51):
1 From the connection relay of the CAPT rudder pedals (60).
2 From the connection relay of the F/O rudder pedals (52).
3 From the tension regulator (57).
(b) Remove the rigging pin (42) from the cable quadrant (24).
(c) Remove the rigging pin (39) from the output bellcrank of the servocontrol (21).
(d) Remove the rigging pins (34) and (35) from the input levers of the travel limitation unit (27).
(e) Remove the rigging pin (40) from the mixer (41) of the artificial feel unit.
(f) Remove the rigging pin (29) from the output bellcrank of the centering spring-rod (15).
(2) Do the functional test of the rudder mechanical control (Ref. AMM TASK 27-21-00-720-002).
Subtask 27-21-00-942-068-A
A. Make sure that the work area is clean and clear of tools and other items.
Subtask 27-21-00-410-059-A B. Close Access
(1) Close the access doors 811 312AR 325BL 325BR 325CR 325CL 325DL 325DR 325ER 325EL.
(2) Install the access panel 211GF (Ref. AMM TASK 53-12-11-400-001).
(3) Install the protective cover on the battery power center 105VU.
(4) Tighten the two screws.
(5) Close the access door 822.
(6) Remove the access platform(s).
Subtask 27-21-00-860-053-A (1) Close the access doors 811 312AR 325BL 325BR 325CR 325CL 325DL 325DR 325ER 325EL.
(2) Install the access panel 211GF (Ref. AMM TASK 53-12-11-400-001).
(3) Install the protective cover on the battery power center 105VU.
(4) Tighten the two screws.
(5) Close the access door 822.
(6) Remove the access platform(s).