Installation and Repair of Hydraulic Lines

TASK 20-23-11-917-002-A
Installation and Repair of Hydraulic Lines

1. Reason for the Job
This task gives:

The permitted damage and defects on hydraulic tubes
The procedure to repair hydraulic tubes
The procedure to install hydraulic tubes
The tightening practices for hydraulic connections
The procedure for the protection of hydraulic lines from vibration and chafing.

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 20-23-11-200-001-A	Permitted Damage and Defects on Hydraulic Tubing
TASK 20-23-11-300-001-A	Repair of Hydraulic Tubes with PERMASWAGE Unions
TASK 20-23-11-300-002-A	Repair of Hydraulic Tubes with HARRISON Elastomerically-Swaged Fittings
TASK 20-23-11-300-003-A	Repair of CRES or Aluminum-Alloy or Titanium-Alloy Tubes with SIERRACIN/HARRISON H-fittings
TASK 20-23-11-300-004-A	Temporary Repair of Hydraulic Tubes
TASK 20-23-11-300-005-A	Repair of Titanium-Alloy Hydraulic Tubes with HARRISON Sleeves and Unions
TASK 20-23-11-300-006-A	Repair of Hydraulic Tubes with CRYOFIT Couplings 3PHS111-XX
TASK 20-23-11-300-007-A	Repair of Hydraulic Tubes with RYNGLOK R8 Unions
TASK 20-23-11-300-009-A	Repair of Hydraulic Leaks with Fly-Away Kit Components
TASK 20-23-11-911-001-A	Installation of the Hydraulic Tubes
TASK 20-23-11-911-802-A	Installation of the Clamp NSA935813 on Pipe
TASK 20-23-11-917-001-A	Tightening Practices for Hydraulic Connections
TASK 20-23-11-917-003-A	Cutting and Deburring of Hydraulic Tubes
TASK 20-23-14-910-001-A	Protection of Hydraulic Lines from Vibration and Chafing
Permanent and Temporary Repair of Hydraulic Tubes

3. Job Set-up
Subtask 20-23-11-210-060-A

A. Not Applicable

4. Procedure
Subtask 20-23-11-917-088-A

A. Permitted Damage and Defects on Hydraulic Tubing
(1) Permitted damage and defects on hydraulic tubing (Ref. AMM TASK 20-23-11-200-001).

Subtask 20-23-11-917-089-A

B. Procedures to Repair Hydraulic Tubes

Permanent and Temporary Repair of Hydraulic Tubes

(1) Permitted repair for hydraulic tube
Usually you repair a tube with a tube made of the same material, but if this is not available, you can repair the tubes as follows:

Aluminum alloy (6061-T6) tubes, ref. ABS5144 or ASNA3410 or DAN40: with Corrosion-Resistant Steel (CRES) (21.6.9) tubes, ref. ASNA3288 or titanium alloy (Ti A3L 2.5V) tubes, ref. ABS5004
CRES (21.6.9) tubes, ref. ASNA3288: with titanium alloy (Ti A3L 2.5V) tubes, ref. ABS5004 (but not in the pylon)
Titanium alloy (Ti A3L 2.5V) tubes, ref. ABS5004: with CRES (21.6.9) tubes, ref. ASNA3288.

(2) To repair the hydraulic leaks with Fly-Away Kit Components (Ref. AMM TASK 20-23-11-300-009).
(3) Permanent repair of hydraulic tubes
For the permanent repair of hydraulic tubes, use one of the repair procedures that follow:
(a) Permanent repair of hydraulic tubes with PERMASWAGE unions (Ref. AMM TASK 20-23-11-300-001).
(b) Permanent repair of hydraulic tubes with HARRISON elastomerically-swaged fittings (Ref. AMM TASK 20-23-11-300-002).
(c) Permanent repair of hydraulic tubes with HARRISON roller-swaged fittings (Ref. AMM TASK 20-23-11-300-005).
(d) Permanent repair of hydraulic tubes with SIERRACIN/HARRISON H-fittings (Ref. AMM TASK 20-23-11-300-003).
(e) Permanent repair of hydraulic tubes with CRYOFIT couplings 3PHS111-XX (Ref. AMM TASK 20-23-11-300-006).
(f) Permanent repair of hydraulic tubes with RYNGLOK R8 unions (Ref. AMM TASK 20-23-11-300-007).
(4) Temporary repair of hydraulic tubes
For the temporary repair of hydraulic tubes, use one of the repair procedures that follow:
(a) Temporary repair of hydraulic tubes with MS21922 sleeves (Ref. AMM TASK 20-23-11-300-004).
(b) Temporary repair of hydraulic tubes with flexible hoses (Ref. AMM TASK 20-23-11-300-004).
(5) For cutting and deburring of hydraulic tubes (Ref. AMM TASK 20-23-11-917-003).

Subtask 20-23-11-917-090-A

C. Procedure for Installation of Hydraulic Tubes
(1) Installation of hydraulic tubing (Ref. AMM TASK 20-23-11-911-001).

Subtask 20-23-11-917-091-A

D. Tightening Practices for Hydraulic Connections
(1) Tightening practices for hydraulic connections (Ref. AMM TASK 20-23-11-917-001).

Subtask 20-23-11-917-105-A

E. Procedure for Protection of Hydraulic Lines from Vibration and Chafing
(1) Protection of hydraulic lines from vibration and chafing (Ref. AMM TASK 20-23-14-910-001).

Subtask 20-23-11-917-114-A

F. Procedure for Installation of Clamp NSA935813 on pipe
(1) Installation of clamp NSA935813 on pipe (Ref. AMM TASK 20-23-11-911-802).

[Rev.10 from 2021] 2026.04.01 03:56:58 UTC