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 S 612-046
 (3)  
Service the hydraulic system reservoirs (AMM 12-12-00/301).

 S 612-047

 (4)  
Service the parking brake accumulator (AMM 12-15-11/301).

 S 752-048

 (5)  
Bleed and do a test of the hydraulic system:

 (a)  
Hydraulic Systems A, B, and Standby (AMM 29-15-00/501)

 (b)  
The Hydraulic Fluid Quantity/Transmitter (AMM 29-33-12/401)

 (c)  
The Hydraulic Fluid Overheat Warning System (AMM 29-32-01/501)

 (d)  
The Power Transfer Unit System (AMM 29-22-00/501)

 S 962-049
 (6)  Replace these hydraulic system filters:
 (a)  
The pressure and case drain module filters (AMM 29-15-34/201, AMM 29-15-71/201, AMM 29-15-91/201)

 (b)  
The return module filter (AMM 29-15-61).

 (c)  
The PTU pressure filter (AMM 29-22-21/201)

 I. Equipment/Furnishings
 NOTE: Do these procedures no more than two weeks before you activate or
____
 deliver the airplane.

 S 022-050
 (1)  
Remove the dust covers from the seats, if installed.

 S 172-051

 (2)  
Fill the toilet tanks and cycle flush systems to make sure they operate correctly.

 S 752-052

 (3)  
Do a test of all the galley and lavatory plumbing and drains for air locks and leaks.

 S 962-053

 (4)  
Replace the carpets and seats if they are not installed.

 S 282-054

 (5)  
Do a check of the pressure of the escape slide bottle and rearm all the automatic escape slides.

 S 282-055

 (6)  
Do a check of the portable fire extinguishers:

 (a)  Weigh the portable fire extinguishers.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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737-300/400/500MAINTENANCE MANUAL
 (b)  If the weight is less than the quantity shown on the nameplate, recharge or replace it.
 J. Landing Gear
 (1)  S 022-056Remove the wheel chocks and covers from all the wheels.
 (2)  S 282-057Make sure the shock struts of the landing gear are serviceable (AMM 12-15-31/301, AMM 12-15-41/301).
 (3)  S 782-058Inflate the tire to the correct pressure (AMM 12-15-51/301).
 (4)  S 022-059Remove the MIL-C-16173, Class 2 per BAC5835.
 (5)  S 162-060Remove the unwanted MIL-G-21164 grease from the inner cylinders of the shock struts.
 (6)  S 642-061Lubricate all the joints with lubrication fittings with MIL-G-23827 (AMM 12-25-07/301, AMM 12-21-11/301, and AMM 12-21-21/301).
 (7)  S 582-062Tow or taxi the airplane sufficiently before a flight to remove flat spots from the tires.
 (8)  S 642-063Lubricate the landing gear doors (AMM 12-21-11/301 and AMM 12-21-21/301).
 (9)  S 212-064Visually examine the landing gear door seals for flat spots or deterioration.

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 K. Oxygen System
 S 212-088
 WARNING: FOLLOW PROCEDURES AND CAUTIONS IN AMM 12-15-21/301, OXYGEN -
_______ SERVICING WHEN YOU REMOVE AND INSTALL THE OXYGEN CYLINDERS. IF YOU ARE NOT CAREFUL, YOU CAN CAUSE INJURY TO PERSONS.
 (1)  
Do a check of the oxygen system for corrosion.