B. Connect the Pipes to the Right Side of the HCU as Follows
(1) Connect the head supply pipe (70) to the HCU (20).
(2) TORQUE the coupling nut to between 450 and 500 lbf.in (5.08 and 5.65 m.daN).
(3) Position the support (90) against the interface bracket (15).
(4) Attach the head supply pipe (70) and the support (90) to the interface bracket (15) with the nut (80).
(5) TORQUE the nut (80) to between 610 and 700 lbf.in (6.89 and 7.91 m.daN).
(6) Attach the latch return pipe (35) and the support (90) to the interface bracket (15) with the nut (85).
(7) TORQUE the nut (85) to between 260 and 300 lbf.in (2.93 and 3.39 m.daN).
(8) Connect the rod supply pipe (75) to the HCU (20).
(9) TORQUE the coupling nut to between 235 and 260 lbf.in (2.65 and 2.93 m.daN).
(10) Attach the rod supply pipe (75) to the interface bracket (15) with the nut (105).
(11) TORQUE the nut (105) to between 370 and 410 lbf.in (4.18 and 4.63 m.daN).
(12) Connect the latch supply pipe (110) to the HCU (20).
(13) TORQUE the coupling nut to between 130 and 150 lbf.in (1.46 and 1.69 m.daN).
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Subtask 78-31-51-420-053
C. Connect the Pipes and Hoses to the Left Side of the HCU as Follows
(1) Install one end of the CVR pipe (100) in the support (90) and attach it with the nut (95).
(2) TORQUE the nut (95) to between 130 and 150 lbf.in (1.46 and 1.69 m.daN).
(3) Connect the other end CVR pipe (100) to the check valve restrictor on the HCU.
(4) TORQUE the coupling nut on the CRV tube (100) to between 235 and 260 lbf.in (2.65 and 2.93 m.daN).
(5) Connect the supply hose (50) to the HCU (20).
(6) TORQUE the coupling nut on the hose (50) to between 470 and 520 lbf.in (5.31 and 5.87 m.daN).
(7) Connect the return hose (45) to the HCU (20).
R (8) TORQUE the coupling nut on the hose (45) to between 660 and 732 R lbf.in (7.45 and 8.27 m.daN).
(9) Connect the latch return hose (40) to the HCU (20).
(10) TORQUE the coupling nut on the hose (40) to between 113 and 125 lbf.in (1.27 and 1.41 m.daN).
(11) Connect the latch supply hose (55) to the latch return pipe (35) on the interface bracket (15).
(12) TORQUE the coupling nut on the hose (55) to between 113 and 125 lbf.in (1.27 and 1.41 m.daN).
(13) Connect the head supply hose (60) to the head supply pipe (70) on the interface bracket (15).
(14) TORQUE the coupling nut on the hose (60) to between 540 and 600 lbf.in (6.10 and 6.78 m.daN).
(15) Connect the rod supply hose (65) to the rod supply pipe (75) on the interface bracket (15).
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(16) TORQUE the coupling nut on the hose (65) to between 270 and 300 lbf.in (3.05 and 3.39 m.daN).
(17) Put the clamp (10) on the thrust reverser harness (30). Attach the clamp (10) to the interface bracket (15) with the bolt (5) and the nut (25).
(18) TORQUE the nut (25) to between 30 and 40 lbf.in (0.33 and 0.45 m.daN).
(19) Connect the electrical connector 4101KS-A to solenoid A of the HCU.
NOTE : If necessary, use the softnose pliers to tighten the
____
electrical connectors.
(20) Connect the electrical connector 4101KS-B to solenoid B of the HCU.
(21) Connect the electrical connector 4102KS-A to the HCU pressure switch.
Subtask 78-31-51-420-054
D. Remove the Drain Can from Under the HCU
(1) Remove the protective cover and examine the engine to make sure there is no hydraulic fluid on the compressor cases.
Subtask 78-31-51-110-050
E. If Hydraulic Fluid is Found, Clean the Compressor Case as Follows
(1) Remove hydraulic fluid from the compressor cases with a clean, dry cloth.
(2) Cleaning:
WARNING : BEFORE THE USE OF SOLVENT, PROTECTIVE FILM OR SEALANT
_______ CAREFULLY READ THE APPLICABLE "MATERIAL SAFETY DATA SHEET" AND FOLLOW ALL LISTED SAFETY AND HEALTH PRECAUTIONS. USE THESE PRODUCTS IN AN AREA OPENED TO THE AIR AND WEAR PROTECTION GLOVES. THESE PRODUCTS ARE FLAMMABLE AND VAPOR IS DANGEROUS. THEY MAY CAUSE IRRITATION OF EYES, NOSE, THROAT AND SKIN. HIGH CONCENTRATIONS MAY CAUSE WEAKNESS, HEADACHE, NAUSEA, DIZZINESS AND IMPAIRED JUDGEMENT.
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