Brake-Distribution
AMM 32-43-14-400-001 Installation of the Dual-Valve 2577GM Alternate
Brake-Distribution R AMM 32-43-51-000-001 Removal of the Alternate Braking Selector Valve R AMM 32-43-51-400-001 Installation of the Alternate Braking Selector Valve
AMM 32-44-00-720-002 Functional Check of the Brake Accumulator System with
the Parking Brake not applied AMM 32-44-11-000-001 Removal of the Accumulator 2582GM AMM 32-44-11-200-001 Check Nitrogen Charge Pressure On Parking/Emergency
Accumulator By Reading Gauge AMM 32-44-11-400-001 Installation of the Accumulator 2582GM AMM 32-44-15-000-001 Removal of the Pressure Relief Valve 3067GM AMM 32-44-15-400-001 Installation of the Pressure Relief Valve 3067GM AMM 32-44-17-000-001 Removal of the Brake Manifold 3016GM AMM 32-44-17-400-001 Installation of the Brake Manifold 3016GM
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-44-00∞∞∞∞∞∞∞∞∞∞Page 212
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REFERENCE DESIGNATION
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AMM 32-45-51-000-001 Removal of the Parking-Brake Electrical Control-Valve 72GG AMM 32-45-51-400-001 Installation of the Parking-Brake Electrical Control-Valve 72GG
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
32-44-00-991-001 Fig. 201
R **ON A/C ALL
3. Fault Confirmation
__________________
A. Test
(1) Do the functional test of the brake accumulator system (Ref. AMM TASK 32-44-00-720-002).
4. Fault Isolation
_______________
NOTE : : After all maintenance operations on the braking system such as
____ hydraulic line disconnection/connection or component replacement, bleed from the brake units (Ref. AMM TASK 32-43-00-870-002).
NOTE : After disconnection of the hydraulic lines, it is important that you
____ let the hydraulic pressure and leakage become stable (5 minutes minimum) before you make an estimate of component leakage.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test confirms the fault:
(Ref. Fig. 201/TASK 32-44-00-991-001)
(1) Do a check for leakage of the parking brake control valve (72GG): - on the Yellow brake-system relief-valve (3067GM) operate the manual depressurization pushbutton to release the accumulator pressure. - on the Yellow hydraulic system, depressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001). - on the accumulator pressure gage (2585GM) make sure that nitrogen pressure is correct (Ref. AMM TASK 32-44-11-200-001).
- on the automatic selector (2576GM) at port H (at the T level), disconnect the hydraulic line from the parking brake control valve (72GG).
- install a plug on the T fitting.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-44-00∞∞∞∞∞∞∞∞∞∞Page 213
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Alternate Brake System with Parking Brake set to Off
Figure 201/TASK 32-44-00-991-001
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞32-44-00∞∞∞∞∞∞∞∞∞∞Page 214
201-299, 301-399, Aug 01/05 CES
- on the Yellow hydraulic system, pressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-002).
- use the Yellow electric pump to pressurize the Yellow brake accumulator (2582GM) to 206 bars (2988 psi) and stop the pump.
- do a check for hydraulic leakage of the parking brake control valve (72GG).
(a) If leakage is more than 20 drops/min:
- replace the CTL VALVE-PARK BRK,ELEC. (72GG) (Ref. AMM TASK 32-45-51-000-001) (Ref. AMM TASK 32-45-51-400-001).
(b) If leakage is in the permitted tolerances: - operate the manual depressurization pushbutton of the relief valve (3067GM) to release the accumulator pressure.
- on the Yellow hydraulic system, depressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-001).
- connect the line on the T fitting.
(2) Do a check for leakage of the relief valve (3067GM): On the brake manifold (3016GM) disconnect the lines at ports D, E, F and G. Install a plug at ports E, F and G and a plug on the disconnected hydraulic lines. - on the Yellow hydraulic system, pressurize the Yellow hydraulic
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