1EFF : ALL 1 32-31-17Page 401 1 1 Feb 01/05 1 1 1CES 1 1EFF : ALL 1 32-31-17Page 402 1 1 Aug 01/05 1 1 1CES 1 Subtask 32-31-17-010-050
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-23-21-911-001 24-41-00-862-002 29-00-00-910-002 29-10-00-864-001 29-14-00-614-001 29-23-00-860-001 32-00-00-860-001 32-12-00-010-001 Removal/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the BobbinsDe-energize the Aircraft Electrical Circuits Supplied from the External PowerSafety Procedures of the Hydraulic SystemDepressurize the Green Hydraulic SystemDepressurization of the Hydraulic ReservoirsDisconnection of the Isolation Coupling of the Power Transfer Unit (PTU)Flight Configuration Precautions with Electrical PowerOpen the Main Gear Doors for Access
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
32-31-17-991-001-A Fig. 401
R **ON A/C 401-499,
R 32-31-17-991-001 Fig. 401A
R **ON A/C ALL
3. Job Set-up__________
Subtask 32-31-17-860-050
A. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002)
(2) Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).
(3) Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
B. Get Access
(1) Open the right MLG door (Ref. TASK 32-12-00-010-001). Subtask 32-31-17-869-050
C. Obey the applicable safety precautions
(1)
Disconnect the PTU isolation coupling (Ref. TASK 29-23-00-860-001).
(2)
Obey the flight configuration precautions (Ref. TASK 32-00-00-860-001).
(3)
Put the access platform in position.
(4)
Put the container below the safety valve to collect the hydraulic fluid leakage.
Subtask 32-31-17-865-050
D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 32-31-17-941-050
E. Safety Precautions
(1)
Put the warning notices in position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system.
(2)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
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4. Procedure_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 401/TASK 32-31-17-991-001-A)
R **ON A/C 401-499,
R (Ref. Fig. 401A/TASK 32-31-17-991-001)
R **ON A/C ALL
Subtask 32-31-17-020-050-A
A. Removal of the Safety Valve (7)
(1) Disconnect the electrical connector (8) from the safety valve (7).
(2) Put blanking caps on the disconnected electrical connectors.
(3) Remove the bolts (10), the washers (9), the bonding strap (11) and the safety valve (7).
(4) Remove and discard the packings (2) and (16) and the back-up rings (3) and (15) from the bobbins (4) and (14).
(5) If necessary remove the bobbings (4) and (14) and discard the square seals (6) and (12) and the back-up rings (5) and (13) (Ref. TASK 20-23-21-911-001).
(6) Put blanking plugs on the disconnected line ends.
1EFF : ALL 1 32-31-17Page 404 1 1 Aug 01/05 1 1 1CES 1
Landing Gear Safety-Valve 49GA Figure 401/TASK 32-31-17-991-001-A
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-31-17Page 405 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1
R Landing Gear Safety-Valve 50GA
R Figure 401A/TASK 32-31-17-991-001
R 1EFF : 401-499, 1 32-31-17 Page 406
1 1 Aug 01/05
1 1
1CES 1
TASK 32-31-17-400-001
Installation of the Landing Gear Safety-Valve
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