(6)
Do the check of the accumulator charging pressure: 100 bars at 20 deg. C (1450 PSI at 68 deg. F) (Ref. TASK 32-44-11-200-001).
(7)
On the overhead panel 40VU, push and release the YELLOW/ELEC PUMP pushbutton switch to pressurize the brake accumulator system to 206 bars (2988 PSI). The brake accumulator pressure is shown on the ACCU PRESS indication on the triple pressure indicator 60GG on the panel 400VU.
(8)
On the overhead panel 40VU, push and release the YELLOW/ELEC PUMP pushbutton switch.
**ON A/C ALL
Post SB 32-1215 For A/C 001-049,051-099,101-105,151-199,201-210,
Subtask 32-45-00-860-053-A
B. Aircraft Maintenance Configuration
(1)
On the panel 400VU, make sure that the landing-gear control lever is in the DOWN position.
(2)
On the panel 110VU, make sure that the PARKING BRK control-switch is in the ON position.
(3)
Make sure that the CAPT and F/O brake pedals are released.
(4)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(5)
Make sure that the Green and Yellow hydraulic systems are depressurized.
(6)
Do the check of the accumulator charging pressure: 70 bars at 20 deg. C (1015 PSI at 68 deg. F) (Ref. TASK 32-44-11-200-001).
(7)
On the overhead panel 40VU, push and release the YELLOW/ELEC PUMP pushbutton switch to pressurize the brake accumulator system to 206 bars (2988 PSI). The brake accumulator pressure is shown on the ACCU PRESS indication on the triple pressure indicator 60GG on the panel 400VU.
(8)
On the overhead panel 40VU, push and release the YELLOW/ELEC PUMP pushbutton switch.
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**ON A/C ALL
Subtask 32-45-00-941-051
C. Safety Precautions
(1) Put the warning notice(s) to tell persons not to:
- operate the landing gear control lever,
- operate the brake pedals,
-pressurize the Green and the Yellow hydraulic systems.
4. Procedure
_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
Subtask 32-45-00-720-050
A. Do this test: On the accumulator pressure gage make sure that the accumulator pressure is not lower than that shown in the table below:
------------------------------------------------------------------------------| PARKING BRAKE | | ON (HOURS) 0 1 2 3 4 5 6 12 | |----------------------------------------------------------------------------| | ACCU PRESSURE 206 180 167 160 153 149 145 100 | | BARS (PSI) (2988) (2611) (2422) (2321) (2219) (2161) (2103) (1450) | |----------------------------------------------------------------------------|
NOTE : If after 3 hours, the pressure drop is in the tolerance you can
____ stop the test and no maintenance action is required. If you are not sure that the results of the test are satisfactory, you must continue the test for the full 12 hours.
If the pressure drop is out of tolerance, do the check of the system to find the leak.
1EFF : ALL 1 32-45-00Page 512 1 1 Aug 01/05 1 1 1CES 1 1EFF : ALL 1 32-45-00Page 513 1 1 Aug 01/05 1 1 1CES 1
R **ON A/C 401-499,
R Subtask 32-45-00-720-050-A
R A. Do this test:
R On the accumulator pressure gage make sure that the accumulator pressure
R is not lower than that shown in the table below:
R ------------------------------------------------------------------------------
R | PARKING BRAKE |
R | ON (HOURS) 0 1 2 3 4 5 6 12 |
R |----------------------------------------------------------------------------|
R | ACCU PRESSURE 206 180 167 160 153 149 145 100 |
R | BARS (PSI) (2988) (2611) (2422) (2321) (2219) (2161) (2103) (1450) |
R |----------------------------------------------------------------------------|
R
R NOTE : We recommand that you do the test at an ambient temperature near____
R 20 deg.C (68.00 deg.F).
R NOTE : If after 3 hours, the pressure drop is in the tolerance you can____
R stop the test and no maintenance action is required.
R If you are not sure that the results of the test are satisfactory,
R you must continue the test for the full 12 hours.
R If the pressure drop is out of tolerance, do the check of the system to
R find the leak.
R **ON A/C ALL
Subtask 32-45-00-860-052
B. Aircraft Maintenance Configuration
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