(2)
 Open the applicable FWD passenger/crew door 831 or 841 (Ref. TASK 52-10-00-010-001).

 (3)
 Obey the special precautions before you start work on the door (Ref. TASK 52-10-00-860-001)

 Subtask 52-11-31-865-059
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU EIS/SLIDES/ARM AND WARN/FLT 15WN P11 121VU EIS/SLIDES/ARM AND WARN/GND 13WN P10 121VU EIS/SDAC1 AND 2/DOOR/DET/PAX 48WV P05
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 D. Removal of the Rollers
 (1) Remove the rollers, if not removed (Ref. TASK 52-11-31-000-002).
 4. Procedure
_________
 Subtask 52-11-31-220-051
 A. Inspection of the Guide Rollers
 (Ref. Fig. 601/TASK 52-11-31-991-013)

 (1)
 Do a detailed visual inspection of the bush, and the parts of the guide rollers.

 (2)
 Make sure that the dimensions are correct.

 -------------------------------------------------------------------------------| 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.)| |--------|---------|---------|---------|---------|---------|---------|--------| | CC | | | | | | | | | OD2 | 12.715 | 12.730 | | | 12.701 | | | | | (0.5005)| (0.5011)| | | (0.5004)| | | | | | | 0.0000 | 0.052 | | | 0.084 | | | | | (0.0000)| (0.0016)| | |(0.0033)| | ID1 | 12.730 | 12.727 | | | | 12.785 | | | | (0.5011)| (0.5022)| | | | (0.5038)| | | | | | | | | | | -------------------------------------------------------------------------------
(3) If the wear of the bush is not in the tolerances.
 (a)
 Replace the bush (Ref. TASK 52-10-00-915-001).

 (b)
 or replace the part on which it is installed.

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 Guide Rollers
 Figure 601/TASK 52-11-31-991-013
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 Subtask 52-11-31-220-052
 B. Inspection of the Roller
 (Ref. Fig. 602/TASK 52-11-31-991-014)

 (1)
 Do a detailed visual inspection of the parts of the roller.

 (2)
 Make sure that the dimensions are correct.

 -------------------------------------------------------------------------------| 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.)| |--------|---------|---------|---------|---------|---------|---------|--------| | CC | | | | | | | | | OD11 | 8.483 | 8.495 | | | 8.473 | | | | | (0.3339)| (0.3344)| | | 0.3389 | | 0.064 | | | | | 0.010 | 0.031 | | |(0.0024)| | | | | (0.0004)| (0.0012)| | | | | ID10 | 8.505 | 8.514 | | | | 8.534 | | | | (0.3348)| (0.3351)| | | | (0.3359)| | -------------------------------------------------------------------------------
5. Close-up
________
 Subtask 52-11-31-420-059
 A. Installation of the Rollers
 (1) Install the rollers (Ref. TASK 52-11-31-000-002).
 Subtask 52-11-31-865-060
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 13WN, 15WN, 48WV
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 Roller
 Figure 602/TASK 52-11-31-991-014
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 Subtask 52-11-31-410-058
 C. Close Access
 (1)
 Obey the special precautions after the work on the door (Ref. TASK 52-10-00-860-002).

 (2)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 (3)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (4)
 Close the FWD passenger/crew door 831 or 841 (Ref. TASK 52-10-00-410-001).
　
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