W DOC AIRBUS | AMM A320F

Removal of the Rudder Trim Actuator

TASK 27-22-51-000-001-A
Removal of the Rudder Trim Actuator

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 325
FIN: 10CC
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
AR
CAP - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
6137-013
1
PIN-LOCKING
6137-060
1
PIN - LOCKING
98D27207548000
1
PIN-RIGGING
98D27403500000
1
PITCH TRIM CONTROL LOCKING
98D27903500000
2
PIN-SIDE STICK LOCKING
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
325
VERTICAL STABILIZER TRAILING EDGE
197CB, 197EB, 198CB, 325BL, 325BR, 822
 D. Referenced Information
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 27-00-00-480-001-A
Installation of the Pitch-Trim Control Locking Tool (98D27403500000)
TASK 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 55-33-13-010-002-A
Opening/Removal of the Trailing Edge Access-Panels of the Vertical Stabilizer
F Rigging Pin Locations for the Replacement of the Rudder Trim Actuator - PNs 6137-3 and 6137-4/6137-5
F Rudder Trim Actuator - PN 6137-3 ** ON A/C NOT FOR ALL
F Rudder Trim Actuator - PNs 6137-4/6137-5 ** ON A/C NOT FOR ALL
F Rudder Trim Actuator - PN 6137-3 (with Rocker) ** ON A/C NOT FOR ALL
F Rudder Trim Actuator - PNs 6137-4/6137-5 (with Rocker) ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 27-22-51-860-051-A
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Do the Electronic Instrument System (EIS) start procedure (Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the F/CTL key:
     (a) On the SD, the F/CTL page comes into view.
   (4) Make sure that the pedals are in the neutral position.
   (5) On the center pedestal, on RUD TRIM/PARKING BRK panel 110VU, make sure that the RUD TRIM indicator shows 0.
   (6) On the overhead panel, on FLT CTL panel 23VU, release the ELAC 1, SEC 1 and FAC 1 pushbutton switches (the OFF legends come on).
   (7) On the overhead panel, on FLT CTL panel 24VU, release the ELAC 2, SEC 2 and FAC 2 pushbutton switches (the OFF legends come on).
   (8) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
Subtask 27-22-51-010-051-A
B. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below access door 822.
   (2) Open access door 822.
   (3) On battery power center 105VU:
     (a) Loosen the two screws.
     (b) Remove the protective cover.
Subtask 27-22-51-865-057-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1B04
49VUAUTO FLT/FAC1/26VAC14CC1B03
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1H10
49VUAUTO FLT/FAC1/26VAC14CC1H09
** ON A/C ALL
121VUAUTO FLT/RUDDER/TRIM/IND15CCM20
121VUAUTO FLT/FAC2/28VDC5CC2M19
121VUAUTO FLT/FAC2/26VAC14CC2M18
Subtask 27-22-51-941-050-A
D. Safety Precautions
   (1) In the cockpit:
     (a) Install the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and the F/O side sticks.
     (b) Put the 98D27403500000 PITCH TRIM CONTROL LOCKING on the pitch trim control-wheel (Ref. AMM TASK 27-00-00-480-001).
     (c) Put the WARNING NOTICE(S) in position:
  • On the overhead panel, on the HYD section of HYD/FUEL panel 40VU, to tell persons not to pressurize the hydraulic systems
  • On the overhead panel, on FLT CTL panels 23VU and 24VU, to tell persons not to push the ELAC, SEC and FAC pushbutton switches
  • On the center pedestal, on RUD TRIM/PARKING BRK panel 110VU, on the RUD TRIM control switch, to tell persons not to operate it
  • On the flight controls, to tell persons not to operate them.
   (2) On the ground:
     (a) Open access doors 197CB, 198CB and 197EB.
     (b) Put the WARNING NOTICE(S) in position:
  • On the ground service panel of the Yellow hydraulic system, to tell persons not to pressurize the Yellow hydraulic system
  • On the ground service panel of the Green hydraulic system, to tell persons not to pressurize the Green hydraulic system
  • On the ground service panel of the Blue hydraulic system, to tell persons not to pressurize the Blue hydraulic system.
     (c) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 27-22-51-010-050-B
E. Get Access
F Rigging Pin Locations for the Replacement of the Rudder Trim Actuator - PNs 6137-3 and 6137-4/6137-5
   (1) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position in zone 325.
   (2) At the trailing edge of the vertical stabilizer (45):
     (a) Open access panels 325BL and 325BR (Ref. AMM TASK 55-33-13-010-002).
     (b) Put the 98D27207548000 PIN-RIGGING (47) in the mixer (48) of the artificial-feel spring rod (54).
4. Procedure
Subtask 27-22-51-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Rudder Trim Actuator (Part Number (PN) 6137-3)
F Rudder Trim Actuator - PN 6137-3 ** ON A/C NOT FOR ALL
   (1) Disconnect the hydraulic bracket (30) from the rudder control frame (57):
     (a) Remove the nuts (33) and the washers (32).
     (b) Remove the bolts (31).
     (c) Do not disconnect the hydraulic line end-fittings from the hydraulic bracket (30).
   (2) Remove the bonding straps (25) from the rudder control frame (57):
     (a) Remove the bolts (23) and the washers (24).
     (b) Move the bonding straps (25) away from the rudder control frame (57).
     (c) Do not disconnect the bonding straps (25) from the structure unless a repair or a new installation is necessary.
   (3) Disconnect the links (20) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pins (27).
     (b) Remove the nuts (28) and the washers (29).
     (c) Remove the bolts (21) and the sliding bushes (22).
     (d) Disengage the links (20) from the rudder control frame (57).
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.
     (e) Temporarily safety the sliding bushes (22) on the links (20) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (f) Do not disconnect the links (20) from the support brackets of the structure unless a repair or a new installation is necessary.
   (4) Removal of the rudder trim actuator (8):
     (a) Make sure that there are identification marks on electrical connectors A (18) and B (16).
     (b) If there are no identification marks on electrical connectors A (18) and B (16), make identification marks on them.
NOTE: These identification marks are important for the subsequent installation procedure.
     (c) Disconnect electrical connectors A (18) and B (16) from the receptacles (14) and (15).
     (d) Put the CAP - BLANKING on the receptacles (14) and (15) and on electrical connectors A (18) and B (16).
     (e) Do not disconnect the bonding straps (17) and (19) from electrical connectors A (18) and B (16) unless a repair or a new installation is necessary.
     (f) If you must install a rudder trim actuator PN 6137-4 or 6137-5:
       1 Remove the bonding straps (17) and (19) from electrical connectors A (18) and B (16) and from the structure.
       2 Install the new bonding straps (17) and (19) for the rudder trim actuator (8) (PN 6137-4 or 6137-5) on electrical connectors A (18) and B (16) and on the structure.
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.
     (g) Cut, remove and discard the lockwire from the bolts (4) and (9).
     (h) Remove the bolt (4), washer (3) and bonding strap (2) from the rudder trim actuator (8).
     (i) Do not disconnect the bonding strap (2) from the bracket (12) unless a repair or a new installation is necessary.
     (j) Remove the bolts (9) and the washers (10) from the rudder trim actuator (8).
     (k) Move the rudder trim actuator (8) down and disengage the splined shaft (5) from the universal joint (13).
     (l) Make sure that you do not turn the universal joint (13) until you install the rudder trim actuator (8) again.
     (m) Carefully move the bottom part of the rudder control frame (57) rearward.
     (n) Remove the rudder trim actuator (8) to the right side.
   (5) If you install the same rudder trim actuator (8) again, do these steps:
     (a) Make sure that the mobile red index is in the zero position on the position indicator of the rudder trim actuator (8).
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.
     (b) Cut, remove and discard the lockwire from the plug (7).
     (c) Remove the plug (7) from the rigging hole of the rudder trim actuator (8).
     (d) Install the 6137-013 PIN-LOCKING (6) on the rigging hole of the rudder trim actuator (8).
     (e) Install the plug (7) on the storage hole of the rudder trim actuator (8).
Subtask 27-22-51-020-050-B ** ON A/C NOT FOR ALL
A. Removal of the Rudder Trim Actuator (Part Number (PN) 6137-3)
F Rudder Trim Actuator - PN 6137-3 (with Rocker) ** ON A/C NOT FOR ALL
   (1) Disconnect the hydraulic bracket (41) from the rudder control frame (57):
     (a) Remove the nuts (44) and the washers (43).
     (b) Remove the bolts (42).
     (c) Do not disconnect the hydraulic line end-fittings from the hydraulic bracket (41).
   (2) Remove the bonding strap (26) from the rudder control frame (57):
     (a) Remove the bolt (24) and the washer (25).
     (b) Move the bonding strap (26) away from the rudder control frame (57).
     (c) Do not disconnect the bonding strap (26) from the structure unless a repair or a new installation is necessary.
   (3) Remove the bonding strap (35) from the rudder control frame (57):
     (a) Remove the bolt (37) and the washer (36).
     (b) Move the bonding strap (35) away from the rudder control frame (57).
     (c) Do not disconnect the bonding strap (35) from the structure unless a repair or a new installation is necessary.
   (4) Disconnect the link (20) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pin (23).
     (b) Remove the nut (21) and the washer (22).
     (c) Remove the bolt (28) and the sliding bush (29).
     (d) Disengage the link (20) from the rudder control frame (57).
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.
     (e) Temporarily safety the sliding bush (29) on the link (20) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (f) Do not disconnect the link (20) from the support brackets of the structure unless a repair or a new installation is necessary.
   (5) Disconnect the rocker (40) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pins (34).
     (b) Remove the nuts (33) and the washers (32).
     (c) Remove the bolt (30) and the two sliding bushes (31).
     (d) Remove the bolt (38) and the sliding bush (39).
     (e) Disengage the rocker (40) from the rudder control frame (57).
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.
     (f) Temporarily safety the sliding bushes (31) and (39) on the rocker (40) with the 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (g) Do not disconnect the rocker (40) from the support brackets of the structure unless a repair or a new installation is necessary.
   (6) Removal of the rudder trim actuator (8):
     (a) Make sure that there are identification marks on electrical connectors A (18) and B (16).
     (b) If there are no identification marks on electrical connectors A (18) and B (16), make identification marks on them.
NOTE: These identification marks are important for the subsequent installation procedure.
     (c) Disconnect electrical connectors A (18) and B (16) from the receptacles (14) and (15).
     (d) Put the CAP - BLANKING on the receptacles (14) and (15) and electrical connectors A (18) and B (16).
     (e) Do not disconnect the bonding straps (17) and (19) from electrical connectors A (18) and B (16) unless a repair or a new installation is necessary.
     (f) If you must install a rudder trim actuator PN 6137-4 or 6137-5:
       1 Remove the bonding straps (17) and (19) from electrical connectors A (18) and B (16) and from the structure.
       2 Install the new bonding straps (17) and (19) for the rudder trim actuator (8) (PN 6137-4 or 6137-5) on electrical connectors A (18) and B (16) and on the structure.
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.
     (g) Cut, remove and discard the lockwire from the bolts (4) and (9).
     (h) Remove the bolt (4), washer (3) and bonding strap (2) from the rudder trim actuator (8).
     (i) Do not disconnect the bonding strap (2) from the bracket (12) unless a repair or a new installation is necessary.
     (j) Remove the bolts (9) and the washers (10) from the rudder trim actuator (8).
     (k) Move the rudder trim actuator (8) down and disengage the splined shaft (5) from the universal joint (13).
     (l) Make sure that you do not turn the universal joint (13) until you install the rudder trim actuator (8) again.
     (m) Carefully move the bottom part of the rudder control frame (57) rearward.
     (n) Remove the rudder trim actuator (8) to the right side.
   (7) If you install the same rudder trim actuator (8) again, do these steps:
     (a) Make sure that the mobile red index is in the zero position on the position indicator of the rudder trim actuator (8).
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.
     (b) Cut, remove and discard the lockwire from the plug (7).
     (c) Remove the plug (7) from the rigging hole of the rudder trim actuator (8).
     (d) Install the 6137-013 PIN-LOCKING (6) in the rigging hole of the rudder trim actuator (8).
     (e) Install the plug (7) on the storage hole of the rudder trim actuator (8).
Subtask 27-22-51-020-052-A ** ON A/C NOT FOR ALL
B. Removal of the Rudder Trim Actuator (PN 6137-4 or 6137-5)
F Rudder Trim Actuator - PNs 6137-4/6137-5 ** ON A/C NOT FOR ALL
   (1) Disconnect the hydraulic bracket (30) from the rudder control frame (57):
     (a) Remove the nuts (33) and the washers (32).
     (b) Remove the bolts (31).
     (c) Do not disconnect the hydraulic line end-fittings from the hydraulic bracket (30).
   (2) Remove the bonding straps (25) from the rudder control frame (57):
     (a) Remove the bolts (23) and the washers (24).
     (b) Move the bonding straps (25) away from the rudder control frame (57).
     (c) Do not disconnect the bonding straps (25) from the structure unless a repair or a new installation is necessary.
   (3) Disconnect the links (20) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pins (27).
     (b) Remove the nuts (28) and the washers (29).
     (c) Remove the bolts (21) and the sliding bushes (22).
     (d) Disengage the links (20) from the rudder control frame (57).
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.
     (e) Temporarily safety the sliding bushes (22) on the links (20) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (f) Do not disconnect the links (20) from the support brackets of the structure unless a repair or a new installation is necessary.
   (4) Removal of the rudder trim actuator (8):
     (a) Make sure that there are identification marks on electrical connectors A (18) and B (16).
     (b) If there are no identification marks on electrical connectors A (18) and B (16), make identification marks on them.
NOTE: These identification marks are important for the subsequent installation procedure.
     (c) Disconnect electrical connectors A (18) and B (16) from the receptacles (14) and (15).
     (d) Put the CAP - BLANKING on the receptacles (14) and (15) and electrical connectors A (18) and B (16).
     (e) Do not disconnect the bonding straps (17) and (19) from electrical connectors A (18) and B (16) unless a repair or a new installation is necessary.
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.
     (f) Cut, remove and discard the lockwire from the bolts (4) and (9).
     (g) Remove the bolt (4), washer (3) and bonding strap (2) from the rudder trim actuator (8).
     (h) Do not disconnect the bonding strap (2) from the bracket (12) unless a repair or a new installation is necessary.
     (i) Remove the bolts (9) and the washers (10) from the rudder trim actuator (8).
     (j) Move the rudder trim actuator (8) down and disengage the splined shaft (5) from the universal joint (13).
     (k) Make sure that you do not turn the universal joint (13) until you install the rudder trim actuator (8) again.
     (l) Carefully move the bottom part of the rudder control frame (57) rearward.
     (m) Remove the rudder trim actuator (8) to the right side.
   (5) If you will install the same rudder trim actuator (8), do these steps:
     (a) Make sure that the mobile red index is in the zero position on the position indicator of the rudder trim actuator (8).
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.
     (b) Cut, remove and discard the lockwire from the plug (7).
     (c) Remove the plug (7) from the rigging hole of the rudder trim actuator (8).
     (d) Install the 6137-060 PIN - LOCKING (6) on the rigging hole of the rudder trim actuator (8).
Subtask 27-22-51-020-052-B ** ON A/C NOT FOR ALL
B. Removal of the Rudder Trim Actuator (PN 6137-4 or 6137-5)
F Rudder Trim Actuator - PNs 6137-4/6137-5 (with Rocker) ** ON A/C NOT FOR ALL
   (1) Disconnect the hydraulic bracket (41) from the rudder control frame (57):
     (a) Remove the nuts (44) and the washers (43).
     (b) Remove the bolts (42).
     (c) Do not disconnect the hydraulic line end-fittings from the hydraulic bracket (41).
   (2) Remove the bonding strap (26) from the rudder control frame (57):
     (a) Remove the bolt (24) and the washer (25).
     (b) Move the bonding strap (26) away from the rudder control frame (57).
     (c) Do not disconnect the bonding strap (26) from the structure unless a repair or a new installation is necessary.
   (3) Remove the bonding strap (35) from the rudder control frame (57):
     (a) Remove the bolt (37) and the washer (36).
     (b) Move the bonding strap (35) away from the rudder control frame (57).
     (c) Do not disconnect the bonding strap (35) from the structure unless a repair or a new installation is necessary.
   (4) Disconnect the link (20) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pin (23).
     (b) Remove the nut (21) and the washer (22).
     (c) Remove the bolt (28) and the sliding bush (29).
     (d) Disengage the link (20) from the rudder control frame (57).
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.
     (e) Temporarily safety the sliding bush (29) on the link (20) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (f) Do not disconnect the link (20) from the support brackets of the structure unless a repair or a new installation is necessary.
   (5) Disconnect the rocker (40) from the rudder control frame (57):
WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
     (a) Remove and discard the cotter pins (34).
     (b) Remove the nuts (33) and the washers (32).
     (c) Remove the bolt (30) and the two sliding bushes (31).
     (d) Remove the bolt (38) and the sliding bush (39).
     (e) Disengage the rocker (40) from the rudder control frame (57).
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.
     (f) Temporarily safety the sliding bushes (31) and (39) on the rocker (40) with the lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (g) Do not disconnect the rocker (40) from the support brackets of the structure unless a repair or a new installation is necessary.
   (6) Removal of the rudder trim actuator (8):
     (a) Make sure that there are identification marks on electrical connectors A (18) and B (16).
     (b) If there are no identification marks on electrical connectors A (18) and B (16), make identification marks on them.
NOTE: These identification marks are important for the subsequent installation procedure.
     (c) Disconnect electrical connectors A (18) and B (16) from the receptacles (14) and (15).
     (d) Put the CAP - BLANKING on the receptacles (14) and (15) and electrical connectors A (18) and B (16).
     (e) Do not disconnect the bonding straps (17) and (19) from electrical connectors A (18) and B (16) unless a repair or a new installation is necessary.
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.
     (f) Cut, remove and discard the lockwire from the bolts (4) and (9).
     (g) Remove the bolt (4), washer (3) and bonding strap (2) from the rudder trim actuator (8).
     (h) Do not disconnect the bonding strap (2) from the bracket (12) unless a repair or a new installation is necessary.
     (i) Remove the bolts (9) and the washers (10) from the rudder trim actuator (8).
     (j) Move the rudder trim actuator (8) down and disengage the splined shaft (5) from the universal joint (13).
     (k) Make sure that you do not turn the universal joint (13) until you install the rudder trim actuator (8) again.
     (l) Carefully move the bottom part of the rudder control frame (57) rearward.
     (m) Remove the rudder trim actuator (8) to the right side.
   (7) If you will install the same rudder trim actuator (8), do these steps:
     (a) Make sure that the mobile red index is in the zero position on the position indicator of the rudder trim actuator (8).
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.
     (b) Cut, remove and discard the lockwire from the plug (7).
     (c) Remove the plug (7) from the rigging hole of the rudder trim actuator (8).
     (d) Install the 6137-060 PIN - LOCKING (6) in the rigging hole of the rudder trim actuator (8).
[Rev.10 from 2021] 2026.03.31 23:48:58 UTC
"Aviabrain" 2025