25-25-01
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747-400 MAINTENANCE MANUAL
S 434-032
(8) Tighten the anti-rattle device.
NOTE: Use a spanner type wrench to tighten the anti-rattle device.
____
S 714-033
(9) Hold the seat and try to move the seat in the forward and aft direction. The seat must not move at the seat track fittings.
NOTE: If the seat does not have an anti-rattle device, you can hear
____
the noise in the vertical direction.
S 434-036
(10)
Install the cover to the front seat track.
(11)
Install the cover to the rear seat track.
S 434-037
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747-400 MAINTENANCE MANUAL
PASSENGER SEAT - ADJUSTMENT/TEST
________________________________
1. General_______
A. This procedure has one task which is to do a check of the pressure necessary to push the seat back over the seat bottom.
B. This task is a check of the pressure necessary to push the seat back over the seat bottom for applicable passenger seats.
TASK 25-25-01-705-001
2. Do a Check of the Passenger Seat________________________________
A. Access
(1) FREIGHTERS;
Location Zone
223 Upper Deck Crewrest
224 Upper Deck Crewrest
B. Procedure
S 715-002
(1)
Push the back of the seat over the seat bottom.
S 715-004
(2)
Make sure a large quantity of pressure is necessary to push the back of the seat over the seat bottom.
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25-25-01
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747-400 MAINTENANCE MANUAL
TRACK-MOUNTED PASSENGER SEATS - INSPECTION/CHECK
________________________________________________
1. General
_______
A. This procedure has one task which is to do an inspection/check of the track-mounted passenger seats.
TASK 25-25-01-206-001
2. Inspect/Check Track Mounted Seats
_________________________________
A. Access
(1) Location Zone
223 Upper Deck Crewrest
224 Upper Deck Crewrest
B. References
(1) 25-25-01/401, Passenger Seats
C. Procedure
S 216-002
(1) Do a check of the passenger seat belts to make sure they attach correctly:
(a)
Pull on each seat belt to make sure they are attached correctly.
(b)
Make sure each seat belt operates correctly.
S 216-003
(2) Make sure the seat track fittings are installed correctly (Ref 25-25-01/401):
(a) Hold the seat back and try to move the seat forward and aft. The seat assembly must not move at the seat track fittings.
NOTE: If the seat does not have an anti-rattle device, a
____ rattle in the vertical direction may be heard.
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25-25-01
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747-400 MAINTENANCE MANUAL
FLOOR COVERING - DESCRIPTION AND OPERATION
__________________________________________
1. General_______
A. Upper deck compartment floor covering provides for passenger comfort, soundproofing, and protection for structural floor panels. The floor covering consists of carpets, pads, vinyl mats and sheets. Floor covering is provided in the galley, upper deck, and lavatory.
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