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R R R R R R R | FIG. | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | | DETAIL |---------------------------------------|----------------------------| | AND | DIMENSION | ASSEMBLY CLEARANCE| DIMENSION LIMITS | MAX. | | ITEM | MM (IN.) | MM (IN.) | MM (IN.) | ALLOW. | | NO. |-------------------|-------------------|---------|---------| CLEAR. | | | MIN. | MAX. | MIN. | MAX. | MIN. | MAX. |MM (IN.)| |--------|---------|---------|---------|---------|---------|---------|--------| | BB | 6.325 | 6.335 | | | 6.318 | | | | OD 5 |(0.2490) |(0.2494) | | |(0.2487) | | | | | | | 0.015 | 0.040 | | | 0.054 | | | | | (0.0005)| (0.0015)| | |(0.0021)| | BB | 6.350 | 6.365 | | | | 6.372 | | | ID 6 |(0.2500) |(0.2505) | | | |(0.2508) | | -------------------------------------------------------------------------------
Subtask 21-51-51-220-053
D. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the outside diameter (OD) of the bolts (5) and the inside diameter (ID) of the shouldered bushings (3).
NOTE : If any of the components are 'out of limits' then you must____ replace them. - for item (3) (Ref. TASK 21-51-00-300-001).
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R R R R R R R | FIG. | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | | DETAIL |---------------------------------------|----------------------------| | AND | DIMENSION | ASSEMBLY CLEARANCE| DIMENSION LIMITS | MAX. | | ITEM | MM (IN.) | MM (IN.) | MM (IN.) | ALLOW. | | NO. |-------------------|-------------------|---------|---------| CLEAR. | | | MIN. | MAX. | MIN. | MAX. | MIN. | MAX. |MM (IN.)| |--------|---------|---------|---------|---------|---------|---------|--------| | BB | 6.325 | 6.335 | | | 6.318 | | | | OD 5 |(0.2490) |(0.2494) | | |(0.2487) | | | | | | | 0.015 | 0.035 | | | 0.049 | | | | | (0.0005)| (0.0013)| | |(0.0019)| | BB | 6.350 | 6.360 | | | | 6.367 | | | ID 3 |(0.2500) |(0.2503) | | | |(0.2506) | | -------------------------------------------------------------------------------
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
TASK 21-51-51-200-002
Attachment Components (In-Service Wear Limits) - Air Duct 1. Reason for the Job__________________ Self Explanatory 2. Job Set-up Information______________________ A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 21-51-00-300-001 Attachment Components - Repair/Replacement **ON A/C 051-099, 106-149, 201-299, 301-399,
R 21-51-51-991-007 **ON A/C 401-499, Fig. 602
R 21-51-51-991-007-A Fig. 602A **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
3. Job Set-up__________ Subtask 21-51-51-010-058
A. Get Access
(1) Make sure that the applicable components are disassembled to do the inspection procedure.
R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 21-51-51Page 605 1401-499, 1Aug 01/05 1 1 1CES 1
4. Procedure_________
R **ON A/C 051-099, 106-149, 201-299, 301-399,
(Ref. Fig. 602/TASK 21-51-51-991-007)
R **ON A/C 401-499,
(Ref. Fig. 602A/TASK 21-51-51-991-007-A)
R **ON A/C 051-099, 106-149, 201-299, 301-399,
Subtask 21-51-51-210-053
A. Visual Inspection of the Spherical Bearings in the Air-Duct Support-Rods
(1) Use an applicable measurement method and do a check for radial and axial play at the spherical bearings (2) in the three support rods (9).
(a) If you find more than 0.05 mm (0.0019 in.) radial play or more than 0.2 mm (0.0078 in.) axial play in a spherical bearing (2) then you must replace the support rod (9).
R **ON A/C 401-499,
Subtask 21-51-51-210-053-A
A. Visual Inspection of the Spherical Bearings in the Air-Duct Support-Rods
(1) Use an applicable measurement method and do a check for radial and axial play at the spherical bearings (2) in the support rods (5).
(a) If you find more than 0.05 mm (0.0019 in.) radial play or more than 0.2 mm (0.0078 in.) axial play in a spherical bearing (2) then you must replace the support rod (5).
R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 21-51-51Page 606 1401-499, 1Aug 01/05 1 1 1CES 1
Attachment Components
Figure 602/TASK 21-51-51-991-007
R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 21-51-51Page 607 1 1 Aug 01/05 1 1 1CES 1 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 AIR CONDITIONING 空调 3(150)
