(7) On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(8) On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
R R (9) Put the WARNING NOTICE in the flight compartment to tell persons not to operate the flight controls.
(10) De-energize the aircraft electrical circuits. (Ref. TASK 24-41-00-862-002)
R R (11) Put the WARNING NOTICE in position to tell persons not to operate the Green, the Blue and the Yellow hydraulic systems: - in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panels of the Green, Yellow and Blue hydraulic systems.
(12) Put the PIN - RIGGING (98D27207547000) (17) in the rudder cable quadrant.
(13) Put the PIN - RIGGING (98D27207548000) (18) in the bellcrank of the rudder control unit.
Subtask 27-22-51-860-060
D. Aircraft Maintenance Configuration
R NOTE : The subsequent worksteps are necessary if you remove a rudder trim____ actuator with the part number 6137-4 or 6137-5.
(1) Energize the aircraft electrical circuits. (Ref. TASK 24-41-00-861-002)
R (2) Pressurze the Blue hydraulic system
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL_______ SURFACES ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
R
R R (a) Pressurize the Blue hydraulic system with the electric pump. (Ref. TASK 29-10-00-863-003)
(3) Put the rudder pedals in the neutral position.
(4)
On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(5)
Depressurize the Blue hydraulic system and put it in the maintenance configuration (Ref. TASK 29-00-00-864-001).
(6)
Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. TASK 29-00-00-864-001).
(7)
On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(8)
On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
R (9) Put the WARNING NOTICE in the flight compartment to tell persons not to operate the flight controls.
(10) De-energize the aircraft electrical circuits. (Ref. TASK 24-41-00-862-002)
R (11) Put the WARNING NOTICE in position to tell persons not to operate the R Green, the Blue and the Yellow hydraulic systems:
-in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panels of the Green, Yellow and Blue hydraulic systems.
(12) Install the subsequent rigging pins:
(Ref. Fig. 402/TASK 27-22-51-991-004)
(a)
Put the PIN - RIGGING (98D27207547000) (17) in the rudder cable quadrant.
(b)
Put the PIN - RIGGING (98D27207548000) (18) in the bellcrank of the rudder control unit.
(c)
Put the PIN - RIGGING (98D27207546000) (20) in the bellcrank of the servo actuator 1025GM.
Subtask 27-22-51-865-050
E. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AUTO FLT/FAC1/28VDC 5CC1 B04 49VU AUTO FLT/FAC1/26VAC 14CC1 B03 121VU AUTO FLT/RUDDER/TRIM/IND 15CC M20 121VU AUTO FLT/FAC2/28VDC 5CC2 M19 121VU AUTO FLT/FAC2/26VAC 14CC2 M18
4. Procedure_________
(Ref. Fig. 401/TASK 27-22-51-991-001, 403/TASK 27-22-51-991-005)
Subtask 27-22-51-020-050
A. Removal of the Rudder Trim Actuator 10CC.
R R NOTE : The subsequent worksteps are necessary if you remove a rudder trim____ actuator with the part number 6137-3. If you remove a rudder trim actuator with the part number 6137-4 or 6137-5, refer to the next subtask.
(1) Disconnect the electrical connectors (14) from the plugs (13) on the rudder trim actuator (3).
R R (2) If you must install a rudder trim actuator with the part number 6137-4 or 6137-5:
(a) Remove the existing bonding strap (15) from the electrical connector A and the structure.
R R (b) Install the new bonding strap, which is part of the rudder trim actuator part number 6137-4 or 6137-5, at the electrical connector A and the structure.
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