Subtask 21-52-24-220-058
K. In-Service Wear Limits
(1) Use applicable measurement equipment and measure the OD of the bolt (40) and the ID of the shouldered bushing (6).
NOTE : If any of the components are 'out of limits' then you must____ replace them, - for item (6) (Ref. CMM 215211) and (Ref. CMM 215212).
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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.)| |--------|---------|---------|---------|---------|---------|---------|--------| | EE | 6.325 | 6.335 | | | 6.318 | | | | OD 40 |(0.2490) |(0.2494) | | |(0.2487) | | | | | | | 0.015 | 0.035 | | | 0.049 | | | | | (0.0005)| (0.0013)| | |(0.0019)| | EE | 6.350 | 6.360 | | | | 6.367 | | | ID 6 |(0.2500) |(0.2503) | | | |(0.2506) | | -------------------------------------------------------------------------------
HEAT EXCHANGER - PRIMARY (10HM6,11HM6) - REMOVAL/INSTALLATION
_____________________________________________________________ TASK 21-52-25-000-001 Removal of the Primary Heat Exchanger 10HM6 (11HM6) WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______
FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
NOTE : The procedure is the same for the primary heat exchanger 10HM6 and
____
11HM6.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 21-52-23-000-001 Removal of the Pipe Assembly between the Main Heat R Exchanger and the Air Cycle Machine 21-52-24-000-001 Removal of the Heat Exchanger Unit 10HM4 (11HM4)
(From the Aircraft) 21-61-52-000-003 Removal of the Ram-Air Outlet 53-35-13-000-002 Removal of the Quick-Release Access Panels from the
Belly Fairing Structure
21-52-25-991-001 Fig. 401
3. Job Set-up__________ Subtask 21-52-25-865-050
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM6
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 1HH 3HH X22X21
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 4HH Y19
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC **ON A/C 106-149, 303-399, 2HH Y18
R 122VU 4HH Y19
R **ON A/C 401-499,
R R R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC **ON A/C ALL 53HH 55HH 56HH 54HH W22 W21 Y21 Y20
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