A320飞机维护手册 AMM STANDARD PRACTICES-AIRFRAME(35)_航空信息_民用航空_通用航空

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swaging:
- circular marks behind the sleeve thimble-end,
- contact marks along the jaw of the die.
(a) Make sure that the circular marks are not more than 0.05 mm
(0.0019 in.).
(b) Make sure that the contact marks are not more than 10 % of the
thickness of the wall.
R
R (3) Connect the HARRISON sleeve and union of the tubes and TORQUE it to
R the normal test value.
R
(Ref. Fig. 238/TASK 20-23-11-991-028)
R
R 5. Close-up________
R Subtask 20-23-11-860-062
R A. Put the aircraft back to its initial configuration.
R (1) Pressurize the hydraulic reservoirs (Ref. TASK 29-14-00-614-002).
R (2) If necessary, fill the hydraulic reservoirs:
R - with a hand pump (Ref. TASK 12-12-29-611-001)
R - or with a hydraulic cart (Ref. TASK 12-12-29-611-002)
R (3) Pressurize the hydraulic systems:
R - for the Green system (Ref. TASK 29-10-00-863-001)
R - for the Yellow system (Ref. TASK 29-10-00-863-002)
R - for the Blue system (Ref. TASK 29-10-00-863-003).
R (4) Make sure that there is no leakage in the repaired area.
R (a) If there is leakage, slowly and continuously increase the torque
R value to the maximum authorized (maximum test value) until you
R stop the leak.

Torque Value Chart for Pressure Tests Figure 238/TASK 20-23-11-991-028
1EFF : 1 1R 1CES ALL 1 11 1 20-23-11 Page 291 Aug 01/03

R (5) Bleed the related hydraulic system:
R (a) For the Green system:
R - upstream of the engine pump (Ref. TASK 29-00-00-870-001)
R - upstream of the PTU (Ref. TASK 29-00-00-870-002)
R - downstream of the engine pump (Ref. TASK 29-00-00-870-003).
R (b) For the Yellow system:
R - upstream of the engine pump (Ref. TASK 29-00-00-870-004)
R - upstream of the PTU (Ref. TASK 29-00-00-870-005)
R - upstream of the Yellow E-pump (Ref. TASK 29-00-00-870-006)
R - downstream of the engine pump (Ref. TASK 29-00-00-870-007).
R (c) For the Blue sytem:
R - upstream of the Blue E-pump (Ref. TASK 29-00-00-870-008)
R - downstream of the Blue E-pump (Ref. TASK 29-00-00-870-009).
R (d) For the normal braking system (Ref. TASK 32-42-00-870-001).
R (e) For the alternate braking system.
R - low pressure (Ref. TASK 32-43-00-612-001)
R - high pressure (Ref. TASK 32-43-00-870-002).
R (6) Make sure that the work area is clean and clear of tool(s) and other
R items.

TASK 20-23-11-300-003

Repair of the Corrosion-Resistant Steel and Aluminum-Alloy Hydraulic Tubes with SIERRACIN/HARRISON H-fittings
1. Reason for the Job
__________________
Repair of hydraulic tubes made of corrosion-resistant steel (21-6-9) or
aluminum alloy (6061T6).
2. Job Set-up Information
______________________
A. Consumable Materials
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REFERENCE DESIGNATION
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R Material No. 11-003 USA ASTM D 740 METHYL-ETHYL-KETONE (Ref. 20-31-00)
B. Referenced Information
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REFERENCE DESIGNATION
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12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 12-12-29-611-002 Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart 29-00-00-870-001 Bleeding Procedure of the Green Hydraulic System Upstream of the Engine Pump 29-00-00-870-002 Bleeding Procedure of the Green Hydraulic System Upstream of the PTU 29-00-00-870-003 Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump 29-00-00-870-004 Bleeding Procedure of the Yellow Hydraulic System Upstream of the Engine Pump 29-00-00-870-005 Bleeding Procedure of the Yellow Hydraulic System Upstream of the PTU 29-00-00-870-006 Bleeding Procedure of the Yellow Hydraulic System Upstream of the Yellow E-Pump 29-00-00-870-007 Bleeding Procedure of the Yellow Hydraulic System Downstream of the Engine Pump 29-00-00-870-008 Bleeding Procedure of the Blue Hydraulic System Upstream of the Blue E-Pump