(3)  
Replace the seat cushion and the back cushion.

 S 432-049
 S 412-050
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A

757
MAINTENANCE MANUAL

 TASK 25-11-01-822-078
 7. Captain and First Officer Seat Track Installation and Adjustment.
___________________________________________________________________
 A. General
 (1)  This task is only applicable for Ipeco Captain and First Officer seat track installation, alignment, and lock mechanism adjustments.
 B. Access
 (1)  Location Zones
 211/212 Control Cabin - Section 41

 C. Equipment
 (1)  0T900-0239 Setting Fixture (IPECO P/N) - for seat P/N 3A090-0015, P/N 3A090-0016, P/N 3A090-0077, and P/N 3A090-0078 Boeing P/N S232T303. 0T900-0927 Setting Fixture (IPECO P/N) - for seats P/N 3A254-0007, and P/N 3A254-0008 - Boeing P/N S232T311. 3T900-0101 Setting Fixture (IPECO P/N) - for seat P/N 3A044-0005, P/N 3A044-0006, P/N 3A044-0023, P/N 3A044-0024, P/N 3A044-0025, P/N 3A044-0026, P/N 3A064-0003, P/N 3A064-0004, P/N 3A064-0005, P/N 3A064-0006, 3A064-0007, and P/N 3A064-0008 - Boeing P/N S232N302
 D. Procedure
 S 422-079
 (1)  Install the tracks in the correct positions.
 NOTE: You should remove stops that extend above the top surface.
____
 (a)  Do not tighten the bolts.
 S 822-080
 (2)
Put the track setting fixture in position over the seat tracks.

 S 822-081

 (3)  
Apply a slight downward pressure.

 NOTE: The locating pins of the fixture should fully engage in the
____ holes in the top surface of each track.
 S 422-082
 (4)  
Tighten all the mounting bolts accessible through and around the edge of the fixture.

 (5)  
Remove the fixture.

 (6)  
Tighten all the remaining bolts.

 S 482-083
 S 422-084
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757 MAINTENANCE MANUAL
 FLIGHT COMPARTMENT SEAT TRACKS - INSPECTION/CHECK
_________________________________________________
 1.  General_______
 A.  This procedure contains one task. The task gives instructions to examine the seat tracks of the flight compartment seats.
 TASK 25-11-01-206-001
 2.  Flight Compartment Seat Tracks - Inspection/Check (Fig. 601)_________________________________________________
 A.  General
 (1)  
There are two conditions during which the seat track can become worn:

 (a)  
Condition 1 - The lock pin rubs on the surface of the seat track while the seat is adjusted.

 (b)  
Condition 2 - The lock hole becomes larger when the lock pin hits the edge of the lock hole too many times, when the seat is adjusted.

 (2)  
The seat track is in good condition when:

 (a)  
The maximum depth of a groove on the surface of the seat track is not more than 0.065 inch for the condition 1.

 (b)  
The lock hole is not larger than 0.30 inch in the diameter, and not thicker than 0.1 inch in depth for the condition 2.

 B.  Equipment
 (1)  A25020-8 Inspection Gage - Seat Track (Preferred)
 A25020-4 Inspection Gage - Seat Track (Optional)

 C.  Access
 (1)  Location Zones
 211/212 Control Cabin - Section 41

 D.  Procedure
 S 226-002
 (1)  To do a check on the surface of the seat track, do the steps that follow:
 (a)  
Put the point of the inspection gage in a groove that is on the surface of the seat track.

 (b)  
If the protrusion touches the surface of the seat track, replace the seat track.

 S 226-003
 (2)  To do a check of the lock hole, do the steps that follow:
　
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