(3) Make sure that the access platform is in position.
(4) Make sure that the bleed valve and ballscrew actuator translating nut can be actuated without binding.
Subtask 75-31-60-010-057
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Make sure that the thrust reverser doors are open (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 75-31-60-040-053
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
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4. Procedure
_________ (Ref. Fig. 401/TASK 75-31-60-991-300) Subtask 75-31-60-820-056
A. Set bleed valve near closed position. Subtask 75-31-60-420-051
B. Install bleed valve and ballscrew actuator (20). Hand-tighten both
horizontal (40), then the two vertical (30) bolts.
NOTE : Do not lubricate the threaded part of the bolts.
____ Subtask 75-31-60-820-051
C. Adjustment of the Bleed Valve and Ballscrew Actuator
(1) Make sure that Variable Bleed Valve (VBV) door engages in the fan frame. If it does not, turn the control drive of the bleed valve and ballscrew actuator (20) with the WRENCH - VBV MANUAL CONTROL (856A2501G01) to move the VBV door. Make sure of the correct adjustment of the door in its fan frame seat.
(2) TORQUE the horizontal (40), then the vertical (30) bolts to between 105 and 115 lbf.in (1.18 and 1.29 m.daN).
(3) Set the VBV door reference CLOSED position (Ref. TASK 75-31-00-820-001).
Subtask 75-31-60-420-053
D. Installation of the Flexible Shafts
(1) Install the flexible shafts (10) in the trusts. Engage the spring end of the flexible shafts (10) in the applicable actuator assembly. Compress the spring, and engage the opposite end in the adjacent junction box assembly.
Subtask 75-31-60-080-051
E. Adjustment Check of the Bleed Valve
(1) Make sure that bleed valve is still in reference CLOSED position. If not adjust the reference CLOSED position of the VBV door (Ref. TASK 75-31-00-820-001).
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(2) Make sure that the 11 other doors are still in the reference CLOSED position. If not adjust them (Ref. TASK 75-31-00-820-001).
Subtask 75-31-60-720-053
F. Do a manual check of the Variable Bleed Valve doors (Ref. TASK 75-31-00-200-002).
Subtask 75-31-60-410-052
G. Install the fan duct panels (Ref. TASK 72-23-00-400-027).
Subtask 75-31-60-710-050
H. Do an operational test of the FADEC on the ground (with engine motoring) (Ref. TASK 73-29-00-710-040).
5. Close-up
________
Subtask 75-31-60-410-053
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the thrust reverser doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 75-31-60-440-051
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
Subtask 75-31-60-410-055
C. Close Access
(1) Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Remove the access platform(s).
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(3) Remove the warning notice(s).
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VARIABLE BLEED VALVE SENSOR (RVDT) - REMOVAL/INSTALLATION
_________________________________________________________
TASK 75-31-70-000-002
Removal of the Variable Bleed Valve position Sensor
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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