Para. 4.C.(2) and make sure that dimension H is correct.
(b) Release all the pressure from the top charging valve (first stage of the cylinder).
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(3) Install the standard charging equipment: NOTE : If the equipment manufacturers assembly/operating instructions
____ are different to the data given, use the equipment manufacturers instructions.
(a)
Remove the blanking cap (2) from the top charging valve (1).
(b)
Make sure that the control valves (23) and (25) of the three-way valve (22) are closed.
(c)
Connect the filling hose (21) to the three-way valve (22).
(d)
Connect the filling hose (21) to the top charging valve (1).
(e)
Install the pressure gage 17 bar (246.5640 psi) (20) on the three-way valve (22).
(f)
Remove the blanking cap (4) from the bottom charging valve (3).
(g)
Make sure that the control valves (23) and (25) of the three-way valve (22) are closed.
(h)
Connect the filling hose (21) to the three-way valve (22).
(i)
Connect the filling hose (21) to the bottom charging valve (3).
(j)
Install the pressure gage 140 bar (2030.5278 psi) (20) on the three-way valve (22).
(4)
Measure the temperature of the MLG adjacent to the top charging valve (1).
(5)
Slowly open the bottom charging valve (3).
(6)
At the bottom charging valve (3), read and record the pressure shown on the pressure gage (20).
(7) Close the bottom charging valve (3). **ON A/C 001-003, 051-052,
(Ref. Fig. 310/TASK 12-14-32-991-027)
1EFF : ALL 1 12-14-32Page 363 1 1 Aug 01/05R 1 1 1CES 1
Charging Pressures - Weight off Wheels
Figure 310/TASK 12-14-32-991-027
R 1EFF : 001-003, 051-052, 1 12-14-32Page 364 1 1 Aug 01/05 1 1 1CES 1R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 310A/TASK 12-14-32-991-027-B)
**ON A/C 301-399,
(Ref. Fig. 310B/TASK 12-14-32-991-027-A)
**ON A/C ALL
(8) Refer to the Table 1 and compare the nitrogen pressure that you read from the pressure gage (20). If the two pressures are not the same (+/- 1 bar (14.5037 psi) for the measured temperature, do these steps:
(a)
Connect the nitrogen supply hose (24) to the three-way valve (22) which is connected to the bottom charging valve (3).
(b)
Open the supply valve on the nitrogen source.
NOTE : To increase the nitrogen pressure, open the control valve
____ (25). To release the nitrogen pressure, open the control valve (23).
NOTE : It is possible that a small quantity of hydraulic fluid
____ can be released from the charging valve when nitrogen is discharged. If the volume of fluid that flows from the bottom charging valve is more than 0.6 l (0.1585 USgal):
-you must replenish the MLG shock absorber hydraulic oil (Ref. TASK 12-12-32-611-008)
-refer to the MLG Design Authority.
(c)
Slowly open the bottom charging valve (3).
(d)
Slowly increase or release the nitrogen pressure until the pressure is correct for the measured temperature.
(e)
Close the control valve (23) or (25).
(f)
After 15 minutes, measure the pressure at the bottom charging valve (3) again. Make sure that the pressure is correct.
(g)
Close the bottom charging valve (3).
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Charging Pressures - Weight off Wheels
Figure 310A/TASK 12-14-32-991-027-B
R 1EFF : 004-049, 053-099, 101-149, 151-199, 1 12-14-32Page 366 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
Charging Pressures - Weight off Wheels
Figure 310B/TASK 12-14-32-991-027-A
R 1EFF : 301-399, 1 12-14-32 Page 367
1 1 Aug 01/05
1 1
1CES 1
(h) Close the supply valve on the nitrogen source and remove the nitrogen supply hose (24) from the three-way valve (22).
(9) Slowly open the top charging valve (1).
(10) At the top charging valve (1), read and record the pressure shown on the pressure gage (20).
(11) Close the top charging valve (1).
**ON A/C 001-003, 051-052,
(Ref. Fig. 310/TASK 12-14-32-991-027) R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 401-499, 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM SERVICING 1(104)
