Attachment Components (In-Service Wear Limits) - Air Conditioning Pack

TASK 21-52-41-200-001-A
Attachment Components (In-Service Wear Limits) - Air Conditioning Pack

FIN: 10HM
FIN: 11HM

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 21-52-00-300-001-A	Attachment Components - Repair/Replacement
Attachment Components

3. Job Set-up
Subtask 21-52-41-860-053-A

A. Aircraft Maintenance Configuration
(1) Make sure that the applicable components are disassembled to do the inspection procedure.

4. Procedure
Subtask 21-52-41-210-051-A

A. Visual Inspection of the Spherical Bearings in the Support Rods and Bracket
(1) On the support rods (71), (72a), (72b), (73), (74), (75), (77), (78), (79), (80), (81), (82) and (83):
(a) Use an applicable measurement method and do a check for radial and axial play at the spherical bearings (1).
1 For the 'adjustable rod ends',

if you find more than 0.05 mm (0.0020 in.) radial play or more than 0.2 mm (0.0079 in.) axial play in a spherical bearing (1) then you must replace the related rod eye-end (Ref. AMM TASK 21-52-00-300-001).

2 For the 'fixed rod ends',

if you find more than 0.05 mm (0.0020 in.) radial play or more than 0.2 mm (0.0079 in.) axial play in a spherical bearing (1) then you must replace the related support rod tube (Ref. AMM TASK 21-52-00-300-001).

(2) Use an applicable measurement method and do a check for radial and axial play at the spherical bearing (7) in the bracket (106).
(a) If you find more than 0.05 mm (0.0020 in.) radial play or more than 0.2 mm (0.0079 in.) axial play in the spherical bearing (7) then you must replace it.

Subtask 21-52-41-220-050-A

B. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the outside diameter (OD) of the bushing (98) and the inside diameter (ID) of the shouldered bushing (3).

NOTE: If any of the components are 'out of limits' then you must replace them,

for item (3) (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
CC	8.986	8.995			8.979
OD 98	(0.3538)	(0.3541)			(0.3535)
			0.0050	0.0290			0.0430
			(0.0002)	(0.0011)			(0.0017)
CC	9.000	9.015				9.022
ID 3	(0.3543)	(0.3549)				(0.3552)

Subtask 21-52-41-220-051-A

C. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (96) and the ID of the bushing (98).

NOTE: If any of the components are 'out of limits' then you must replace them.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
CC	6.325	6.335			6.318
OD 96	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0400			0.0540
			(0.0006)	(0.0016)			(0.0021)
CC	6.350	6.365				6.372
ID 98	(0.2500)	(0.2506)				(0.2509)

Subtask 21-52-41-220-052-A

D. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (96) and the ID of the shouldered bushing (2).

NOTE: If any of the components are 'out of limits' then you must replace them,

for item (2) (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
CC	6.325	6.335			6.318
OD 96	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0350			0.0490
			(0.0006)	(0.0014)			(0.0019)
CC	6.350	6.360				6.367
ID 2	(0.2500)	(0.2504)				(0.2507)

Subtask 21-52-41-220-053-A

E. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bushing (98) and the ID of the shouldered bushing (5).

NOTE: If any of the components are 'out of limits' then replace them for:

The item (5)
The air cycle machine (Ref. AMM TASK 21-52-00-300-001)
The water extractor (Ref. AMM TASK 21-52-00-300-001)
The heat exchanger units (Ref. AMM TASK 21-52-00-300-001)
The reheater (Ref. AMM TASK 21-52-00-300-001)
The condensor (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
DD	8.986	8.995			8.979
OD 98	(0.3538)	(0.3541)			(0.3535)
			0.0050	0.0290			0.0430
			(0.0002)	(0.0011)			(0.0017)
DD	9.000	9.015				9.022
ID 5	(0.3543)	(0.3549)				(0.3552)

Subtask 21-52-41-220-054-A

F. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (96) and the ID of the bushing (98).

NOTE: If any of the components are 'out of limits' then you must replace them.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
DD	6.325	6.335			6.318
OD 96	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0400			0.0540
			(0.0006)	(0.0016)			(0.0021)
DD	6.350	6.365				6.372
ID 98	(0.2500)	(0.2506)				(0.2509)

Subtask 21-52-41-220-055-A

G. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (96) and the ID of the shouldered bushing (4).

NOTE: If any of the components are 'out of limits' then replace them for:

The item (4)
The air cycle machine (Ref. AMM TASK 21-52-00-300-001)
The water extractor (Ref. AMM TASK 21-52-00-300-001)
The heat exchanger units (Ref. AMM TASK 21-52-00-300-001)
The reheater (Ref. AMM TASK 21-52-00-300-001)
The condensor (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
DD	6.325	6.335			6.318
OD 96	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0350			0.0490
			(0.0006)	(0.0014)			(0.0019)
DD	6.350	6.360				6.367
ID 4	(0.2500)	(0.2504)				(0.2507)

Subtask 21-52-41-220-056-A

H. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bushing (94) and the ID of the shouldered bushing (8).

NOTE: If any of the components are 'out of limits' then replace them for:

The item (8) (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
EE	8.986	8.995			8.979
OD 94	(0.3538)	(0.3541)			(0.3535)
			0.0050	0.0290			0.0430
			(0.0002)	(0.0011)			(0.0017)
EE	9.000	9.015				9.022
ID 8	(0.3543)	(0.3549)				(0.3552)

Subtask 21-52-41-220-057-A

I. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (89) and the ID of the bushing (94).

NOTE: If any of the components are 'out of limits' then you must replace them.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
EE	6.325	6.335			6.318
OD 89	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0400			0.0540
			(0.0006)	(0.0016)			(0.0021)
EE	6.350	6.365				6.372
ID 94	(0.2500)	(0.2506)				(0.2509)

Subtask 21-52-41-220-058-A

J. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (89) and the ID of the shouldered bushing (6).

NOTE: If any of the components are 'out of limits' then replace them for:

The item (6) (Ref. AMM TASK 21-52-00-300-001).

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
EE	6.325	6.335			6.318
OD 89	(0.2490)	(0.2494)			(0.2487)
			0.0150	0.0350			0.0490
			(0.0006)	(0.0014)			(0.0019)
EE	6.350	6.360				6.367
ID 6	(0.2500)	(0.2504)				(0.2507)

[Rev.10 from 2021] 2026.04.02 06:48:44 UTC