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REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R 32-00-00-860-001 32-00-00-860-002 32-12-00-010-001 32-12-00-410-001 32-31-00-720-002 32-33-00-720-001 51-75-13-916-002 32-31-44-991-003 32-31-44-991-004 Flight Configuration Precautions with Electrical Power Ground Configuration after Flight Configuration with Electrical PowerOpen the Main Gear Doors for AccessClose the Main Gear Doors after AccessFunctional Test of the Normal Extension and Retraction of the Landing GearFunctional Check of Free-Fall ExtensionRepair to a layer of Corrosion Preventive CompoundFig. 403Fig. 404
3. Job Set-up__________
Subtask 32-31-44-860-054
A. Aircraft Maintenance Configuration
(1) Make sure that the PTU isolation coupling is disconnected (Ref. TASK 29-23-00-860-001).
(2) Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(3) Make sure that the flight configuration precautions were obeyed (Ref. TASK 32-00-00-860-001).
(4) Make sure that the Green hydraulic system is depressurized (Ref. TASK 29-10-00-864-001).
(5) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).
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B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
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PANEL DESIGNATION IDENT. LOCATION
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R 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 32-31-44-941-054
C. Safety Precautions
(1) Make sure that the warning notices are 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.
Subtask 32-31-44-560-052
D. Preparation of the Replacement Component
(1)
Make sure that the dimension "Y" of the new support strut "A" is same of that retained from the removed component. (Ref. Fig. 404/TASK 32-31-44-991-004)
(2)
If necessary adjust to "Dimension Y":
(a)
Bend back the lockwasher from the eye end-lock nut if it is safeted.
(b)
Loosen the eye end-lock nut.
(c)
Turn the eye end IN or OUT until the "Dimension Y" is reached.
(d)
Tighten the eye end-lock nut and Torque to between to 1.3 m.daN
(115.04 lbf.in) and to 1.4 m.daN (10.32 lbf.ft).
(e)
Bend up the lock washer to safety the eye end-lock nut.
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(3) Make sure that the dimension "Z" of the new support strut "B" is same of that retained from the removed component. (Ref. Fig. 404/TASK 32-31-44-991-004)
(4) If necessary adjust to "Dimension Z":
(a) Bend back the lockwasher from the eye end-lock nut if it is safeted.
(b) Loosen the eye end-lock nut.
(c) Turn the eye end IN or OUT until the "Dimension Z" is reached.
(d) Tighten the eye end-lock nut and Torque to between to 1.3 m.daN (115.04 lbf.in) and to 1.4 m.daN (10.32 lbf.ft).
(e) Bend up the lock washer to safety the eye end-lock nut.
4. Procedure_________
Subtask 32-31-44-420-051
A. Installation of the MLG Uplock-Support Struts (Ref. Fig. 403/TASK 32-31-44-991-003)
(1) Install the support strut "A"
R R (a) Put the support strut "A" (8) in position on the uplock assembly (25).
R (b) Install the bolt (6) and the washer assembly (7).
R (c) Install the washers (9), (10) and the nut (12).
R (d) Safety the nut (12) with a new cotter pin (11).
(e) Put the eye end in position and install the bolt (1) together with the bush (2).
(f) Install the washer (3) and the nut (4).
(g) Safety the nut (4) with a new cotter pin (5).
(2) Install the support strut "B"
R R (a) Put the support strut "B" (15) in position on the uplock assembly (25).
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