(20) into the adjacent actuator assembly.
(13) Make sure that the master ballscrew is still in the reference CLOSED position.
R (14) Remove the fan duct panels which cover the fan frame cavities in R which the 11 other (follower) variable bleed valve assemblies are R installed (Ref. TASK 72-23-00-000-027).
(15) Make sure of the correct reference CLOSED position of the 11 other VBV doors and adjust it, if necessary (Ref. TASK 75-31-00-820-001).
(16) Connect the VBV feedback rod (80) on the bleed-valve and master ballscrew-actuator (30) as follows:
(a) Engage the clevis end of rod (80) on the feedback reverser arm (60).
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(b) Apply a thin layer of graphite grease (Material No. CP2101) to the threads of bolt (100).
(c) Install the bolt (100), the washer (140) and the castellated nut (130).
(d) TORQUE the castellated nut (130) to 30 lbf.in (0.33 m.daN) minimum and tighten to align one slot of the nut with the mounting bolt pin hole.
NOTE : The maximum torque permitted is 45 lbf.in (0.5085 m.daN) .
____ If you cannot obey the minimum and maximum torque values, you must install a new nut.
R (e) Install a new cotter pin (120).
(17) Make sure that the VBV feedback sensor arm is correctly aligned with the sensor mark. If not, adjust the sensor (Ref. TASK 75-31-70-400-002).
(18) Engage the WRENCH - VBV MANUAL CONTROL (856A2501G01), in one of the
VBV doors actuator, each side of the No. 4 fan frame strut (strut R located at 3 o'clock). Operate the system manually in the two R directions and make sure that it moves freely.
(19) Do a manual operation check of the Variable Bleed Valve doors (Ref. TASK 75-31-00-200-002)
(20) Install fan duct panels, from each side of the fan frame strut at 9 o'clock (aft looking forward) (Ref. TASK 72-23-00-400-027).
(21) Do an operational test of the FADEC on the ground (with engine motoring) (Ref. TASK 73-29-00-710-040).
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________ Subtask 75-31-50-410-055
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close thrust reverser doors: (Ref. TASK 78-36-00-410-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 75-31-50-440-050
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 75-31-50-410-054
C. Close Access
(1) Close fan cowl doors: (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Remove the access platform(s).
(3) Remove the warning notice(s).
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BALLSCREW ACTUATOR - REMOVAL/INSTALLATION
_________________________________________
TASK 75-31-60-000-002
Removal of the Bleed Valve and Ballscrew Actuator Assembly
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors
72-23-00-000-027 Removal of the Fan Duct Panels
R 75-31-20-820-001 Set the Variable Bleed Valve Assembly to the Closed
R position 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 75-31-60-991-300 Fig. 401
3. Job Set-up
__________
Subtask 75-31-60-941-052
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
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