_______ TO AVOID POSSIBLE DAMAGE TO EQUIPMENT AND PERSONNEL INJURY. THE RACSB VALVE WEIGHS APPROXIMATELY 19.1 LB (8,7KG).
 (a) Remove the three bolts (470) that attach the RACSB valve (60) to the bracket (410) on the core engine.

 (b) Carefully remove the bolt (440) that attaches the RACSB valve to the bracket (410) on the core engine.

 (c) Remove the RACSB valve (60).

 (26) Install protective closures on the 5th stage and 9th stage air inlet and outlet ports of the RACSB valve (60).

 (27) Install protective closures on the fuel inlet pad of the RACSB valve

 (60) and on the outlet pad of the fuel manifold (390).

 (28) Remove the nipple (170) from the RACSB valve drain port and set aside for use on the new RACSB valve.

 (29) Remove and discard the O-ring (160).

 (30) Install a blanking plug on the fuel drain port of the RACSB valve (60).

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 Installation of the Rotor Active Clearance Start Bleed Valve (4038KS)
 1. Reason for the Job
__________________
 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 soft-jawed pliers No specific warning notice No specific access platform 1 m (3 ft. 3 in.) No specific Torque Wrench : range 36.00 to 220.00 lbf.in
 (0.40 to 2.60 m.daN) No specific Torque Wrench : range 96.00 to 900.00 lbf.in
 (1.00 to 10.00 m.daN) 856A1612 1 WRENCH SET, SPANNER - AIRTUBE NUTS
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2101 USA MIL-T-5544 graphite grease (Ref. 70-30-00) Material No. CP5070 * vaseline (Ref. 70-30-00) Material No. CP8001 * lockwire 0.032 in. (0.8 mm) dia. (Ref. 70-30-00) Material No. CP8002 * lockwire 0.032 in. (0.8 mm) dia. (Ref. 70-30-00)
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 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
150 metal gasket 75-23-10 01A-090 160 O-ring 75-23-10 01A-190 200 metal gasket 75-23-10 01A-090 240 metal gasket 75-23-10 01A-180 250 orifice plate 75-23-10 01A-170 260 metal gasket 75-23-10 01A-090
 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied R from the External Power 36-11-41-400-040 Installation of the Intermediate Pressure (IP) Bleed
 Check Valve (7110HM)
 36-11-49-400-045 Installation of the Lower High Pressure Duct
 36-11-49-400-048 Installation of the Fifth Stage Elbow Duct
 36-11-51-400-042 Installation of the High Pressure Bleed Valve

 (4000HA) 70-21-00-918-002 Seals (Preformed Packings and O-rings) and Gaskets 71-00-00-710-006 Minimum Idle Check 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
 Engine Motoring)
 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
 75-23-10-991-300 Fig. 401
 75-23-10-991-301 Fig. 402

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 3. Job Set-up
__________
 Subtask 75-23-10-860-051
 A. Aircraft Maintenance Configuration
 (1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
　
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