(15) Remove the unions (130), (135) and (140) from the left side of the HCU (20). Discard the packings (125), (145) and (150).

 (16) Remove the unions (140), (160) and (165) from the right side of the HCU (20). Discard the packings (145), (155) and (170).

 (17) Install protective plugs on all open lines and HCU ports.

 (18) Install protective caps on the three electrical connectors.

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 TASK 78-31-51-400-042
 Installation of the Hydraulic Control Unit
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific softnose pliers
 No specific warning notice
 No specific access platform 1 m (3 ft. 3 in.)
 No specific Torque Wrench : range 30 to 40 lbf.in

 (0.33 to 0.45 m.daN)
 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)
 No specific Torque Wrench : range 180.00 to 1800.00 lbf.in

 (2.00 to 20.00 m.daN)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. CP1039 * R acetone (Ref. 70-30-00) Material No. CP1041 USA MIL-D-12491
 isopropyl alcohol (Ref. 70-30-00) R Material No. CP2011 * R stoddard solvent (Ref. 70-30-00)
 Material No. CP2212 * thrust reverser hydraulic fluid (Ref. 70-30-00) Material No. CP2245 * finish paint EA4 blue 5991 (Ref. 70-30-00) Material No. CP2318 * blindexite RT 342/2 (Ref. 70-30-00) R Material No. CP2559 *
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 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

R ardrox 552 (Ref. 70-30-00)
R Material No. CP2560 *
R turco ind 79 (Ref. 70-30-00)
R Material No. CP2566 *
R mag-chem teksol (Ref. 70-30-00)
R Material No. CP2584 *
R degreasol 99 R (Ref. 70-30-00)
R Material No. CP2656 *
R mag-chem skysol (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)
 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
125 preformed packing 78-31-51 01A-090 145 preformed packings 78-31-51 01A-050 145 preformed packings 78-31-51 01A-050A 150 preformed packing 78-31-51 01A-130 150 preformed packing 78-31-51 01A-130A 150 preformed packing 78-31-51 01A-130B 150 preformed packing 78-31-51 01A-130C 150 preformed packing 78-31-51 01A-130D 155 preformed packing 78-31-51 01A-150 170 preformed packing 78-31-51 01A-090
 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
 the Ground Connector
 71-13-00-010-040 Opening of the Fan Cowl Doors
 71-13-00-410-040 Closing of the Fan Cowl Doors
 78-30-00-081-041 Make the Thrust Reverser Serviceable after

 Maintenance
 78-30-00-481-041 Make the Thrust Reverser Unserviceable for

 Maintenance 78-30-00-710-040 Thrust Reverser Hydraulic System Bleed Procedure 78-31-00-710-042 Operational Test of the Thrust Reverser System 78-36-00-010-040 Opening of the Thrust Reverser Doors
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