(57) Remove the blanking caps from the electrical connectors of the RACSB valve (60) for Channel A (450) and Channel B (460).
(58) Connect the electrical connectors, Channel A (450) and Channel B
(460) to the RACSB valve (60). Tighten the connectors with your hand plus one-eighth of a turn. If necessary, use soft-jawed pliers.
Subtask 75-23-10-420-054
B. Install parts of the customer bleed system removed to get access to the RACSB air tube (70) coupling nut and attachment clamp and to the upper air start tube (80) attachment points as follows:
(1) Install the IP bleed check valve (10) (Ref. TASK 36-11-41-400-040).
(2) Install the 5th stage elbow duct (40) (Ref. TASK 36-11-49-400-048).
(3) Install the HP bleed valve (20) (Ref. TASK 36-11-51-400-042).
(4) If necessary, install the lower high pressure duct (30) (Ref. TASK 36-11-49-400-045).
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Subtask 75-23-10-410-054
C. 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 75-23-10-440-052
D. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
Subtask 75-23-10-860-053
E. On the overhead panel 20VU, push the ENG1(2) FIRE pushbutton switch.
Lower the guard on the pushbutton switch. R
Subtask 75-23-10-710-051
F. Do a test of the RACSB valve.
(1) Do an operational test of the FADEC on the ground (with engine motoring) (Ref. TASK 73-29-00-710-040).
(2) Do a minimum idle leak check (Ref. TASK 71-00-00-710-006).
5. Close-up
________
Subtask 75-23-10-410-055
A. Close Access
(1) Close the fan cowls (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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R Subtask 75-23-10-865-058
R B. Remove the safety clip(s) and the tag(s) and close this(these) circuit R breaker(s):
R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION R -------------------------------------------------------------------------------R 49VU FUEL/LP VALVE/MOT1/ENG2 2QG A09 R 49VU FUEL/LP VALVE/MOT1/ENG1 1QG A08
R Subtask 75-23-10-862-051
R C. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-R 002).
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VALVE - ROTOR ACTIVE CLEARANCE START BLEED - INSPECTION/CHECK
_____________________________________________________________
TASK 75-23-10-200-002
Inspection of the Rotor Active Clearance Start Bleed (RACSB) Valve
1. Reason for the Job
__________________
R This task is applicable for NON /P engines.
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
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71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 75-23-10-000-002 Removal of the Rotor Active Clearance Start Bleed
Valve (4038KS) 75-23-10-400-002 Installation of the Rotor Active Clearance Start Bleed Valve (4038KS) 78-30-00-081-041 Make the Thrust Reverser Serviceable after Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
75-23-10-991-304 Fig. 601
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