In Service Wear Limits of the Elevator Servo-Control Attach-Fittings

TASK 27-34-51-200-001-A
In Service Wear Limits of the Elevator Servo-Control Attach-Fittings

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

REFERENCE	DESIGNATION
TASK 27-34-51-000-001-A	Removal of the Elevator Servo Control
TASK 27-34-51-400-001-A	Installation of the Elevator Servo Control
In Service Wear Limits - Elevator Servo-Control Attach-Fittings

3. Job Set-up
Subtask 27-34-51-010-059-A

A. Get Access
(1) Remove the elevator servo control (Ref. AMM TASK 27-34-51-000-001).

4. Procedure
Subtask 27-34-51-220-050-A

A. Fits and Clearances
(1) Complete an inspection of these dimensions.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
A	19.987	20.000			19.970
OD 1	(0.7869)	(0.7874)			(0.7862)
			0.0000	0.0340			0.0680
			(0.0000)	(0.0013)			(0.0027)
A	20.000	20.021				20.038
ID 2	(0.7874)	(0.7882)				(0.7889)

NOTE: If the values are more than the limits, the items must be replaced.

NOTE: Wear is only permitted for bush (1).

Position	Measured dimension (mm) outer dia. (item no. A-OD1)	Measured dimension (mm) inner dia. (item no. A-ID2)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 19.970 mm (0.7862 in.)	Max. 20.038 mm (0.7889 in.)	Max. 0.068 mm (0.0027 in.)

Subtask 27-34-51-220-051-A

B. Fits and Clearances
(1) Complete an inspection of these dimensions for STA-LOK nuts.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
A	15.846	15.862			15.831
OD 3	(0.6239)	(0.6245)			(0.6233)
			0.0000	0.0290			0.0590
			(0.0000)	(0.0011)			(0.0023)
A	15.862	15.875				15.890
ID 1	(0.6245)	(0.6250)				(0.6256)

NOTE: If the values are more than the limits, the items must be replaced.

NOTE: Wear is only permitted for the bush (1).

Position	Measured dimension (mm) outer dia. (item no. A-OD3)	Measured dimension (mm) inner dia. (item no. A-ID1)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 15.831 mm (0.6233 in.)	Max. 15.890 mm (0.6256 in.)	Max. 0.059 mm (0.0023 in.)

Subtask 27-34-51-220-060-A

C. Fits and Clearances
(1) Complete an inspection of these dimensions for CASTELLATED nuts.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
A	15.846	15.862			15.816
OD 3	(0.6239)	(0.6245)			(0.6227)
			0.0130	0.0470			0.1070
			(0.0005)	(0.0019)			(0.0042)
A	15.875	15.893				15.923
ID 1	(0.6250)	(0.6257)				(0.6269)

NOTE: If the values are more than the limits, the items must be replaced.

NOTE: Wear is only permitted for the bush (1).

Position	Measured dimension (mm) outer dia. (item no. A-OD3)	Measured dimension (mm) inner dia. (item no. A-ID1)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 15.816 mm (0.6227 in.)	Max. 15.923 mm (0.6269 in.)	Max. 0.107 mm (0.0042 in.)

Subtask 27-34-51-220-052-B

D. Fits and Clearances
(1) Complete an inspection of these dimensions.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
A	15.846	15.862			0
OD 3	(0.6239)	(0.6245)			(0.0000)
			0.0130	0.0470			0.0000
			(0.0005)	(0.0019)			(0.0000)
A	15.875	15.893				0
ID 4	(0.6250)	(0.6257)				(0.0000)

NOTE: If the values are more than the limits, the items can be replaced.

NOTE: The value 0 in the column IN-SERVICE WEAR LIMITS indicates that the item can not be worn.

Position	Measured dimension (mm) outer dia. (item no. A-OD3)	Measured dimension (mm) inner dia. (item no. A-ID4)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 0.0000 mm (0.0000 in.)	Max. 0.0000 mm (0.0000 in.)	Max. 0.0000 mm (0.0000 in.)

Subtask 27-34-51-220-054-A

E. Fits and Clearances
(1) Complete an inspection of these dimensions.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
B	15.850	15.861			0
OD 5	(0.6240)	(0.6244)			(0.0000)
			0.0140	0.0430			0.0000
			(0.0006)	(0.0017)			(0.0000)
B	15.875	15.893				0
ID 6	(0.6250)	(0.6257)				(0.0000)

NOTE: If the values are more than the limits, the items can be replaced.

NOTE: The value 0 in the column IN-SERVICE WEAR LIMITS indicates that the item can not be worn.

Position	Measured dimension (mm) outer dia. (item no. B-OD5)	Measured dimension (mm) inner dia. (item no. B-ID6)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 0.0000 mm (0.0000 in.)	Max. 0.0000 mm (0.0000 in.)	Max. 0.0000 mm (0.0000 in.)

Subtask 27-34-51-220-055-A

F. Fits and Clearances
(1) Complete an inspection of these dimensions.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
B	19.480	19.493			19.456
OD 6	(0.7669)	(0.7674)			(0.7660)
			0.0070	0.0410			0.0890
			(0.0003)	(0.0016)			(0.0035)
B	19.500	19.521				19.545
ID 7	(0.7677)	(0.7685)				(0.7695)

NOTE: If the values are more than the limits, the items can be replaced.

NOTE: Wear is only permitted for bush (7).

NOTE: If bush (7) can be turned by hand force, obey SB A320 55-1023 for the specified bush only.

Position	Measured dimension (mm) outer dia. (item no. B-OD6)	Measured dimension (mm) inner dia. (item no. B-ID7)	Clearance
LH INBD LH OUTBD
RH INBD RH OUTBD
In-service limit	Min. 19.456 mm (0.7660 in.)	Max. 19.545 mm (0.7695 in.)	Max. 0.089 mm (0.0035 in.)

5. Close-up
Subtask 27-34-51-410-059-A

A. Close Access
(1) Install the elevator servo control (Ref. AMM TASK 27-34-51-400-001).

Subtask 27-34-51-942-058-A

B. Removal of Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 06:51:44 UTC