(s)  
Close the air valve on the shock strut.

 (t)  
Remove the hose of the service manifold assembly from the air valve.

 (u)  
Tighten the swivel nut to 60-84 pound-inches.

 (v)  
Install the pressure caps on the air valves of each gear.

 S 613-046
 (7)  After 5-10 landings, measure dimension X and read the pressure on the pressure gages of the wing landing gears. If the pressure and dimension X are out of range, add or release gas from the struts.
 TASK 12-15-03-703-044
 5. Wing Landing Gear Pressure/Extension Check (Fig. 301)
__________________________________________
 NOTE: This is a Scheduled Maintenance task.
____
 A. Special Tools and Equipment
 (1)  
3MIT65B00163-1 - Landing Gear Struts Service Manifold Assembly

 (2)  
F70200-14 - Strut Inflation Tool

 B. Standard Tools and Equipment
 (1)
Clean, nitrogen or dry air source - 2000 psi with pressure gages

 (2)
Clean container with graduations - 90-ounce minimum capacity

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A
747-400
MAINTENANCE MANUAL

 C. Consumable Materials
 (1) D00509 Fluid - Hydraulic, Petroleum Base, MIL-H-6083 (alternate)
 NOTE: Unless you use only a small amount of fluid, approximately
____ 1.0 percent of the total, you must mix MIL-H-6083 in the correct proportion with Lubrizol 1395 before you fill the shock strut. You can use this fluid with MIL-H-6083 and use it as an alternative for MIL-H-5606. This hydraulic fluid is optional. The hydraulic fluid BMS 3-32 is recommended for landing gear shock struts.
 (2)
D00155 Lubrizol 1395 - Shock Strut Fluid Extreme Pressure Additive

 (3)
D00070 Oil - Hydraulic, Petroleum Base, MIL-H-5606 (alternate)

 NOTE: Unless you use only a small amount of fluid, approximately
____
 1.0 percent of the total, you must mix MIL-H-5606 in the
 correct proportion with Lubrizol 1395 before you fill the
 shock strut.
 The MIL-H-5606 is recommended fluid over the MIL-H-6083
 fluid.
 Both MIL-H-5606 and MIL-H-6083 hydraulic fluids are optional.
 The hydraulic fluid BMS 3-32 is recommended for landing gear
 shock struts.

 (4) D00467 Fluid - Hydraulic, BMS 3-32 (Recommended)
 Type I - Royco SSF, Shell SSF and Castrolaero 35 (These fluids contain the mixture of MIL-H-6083 and Lubrizol 1395)
 Type II - Royco LGF, Shell LGF and Castrolaero 40 (These fluids are the recommended fluid for servicing and contain the mixture of MIL-H-5606 and Lubrizol 1395)
 D. References
 (1)
AMM 09-11-00/201, Towing

 (2)
AMM 32-00-30/201, Landing Gear Door Locks

 (3)
AMM 32-11-02/301, Wing Gear Shock Strut

 (4)
AIPC 32-11-01 Fig. 5

 E. Access
 (1)  Location Zone
 735 Wing Landing Gear, LH
 745 Wing Landing Gear, RH

 F. Procedure (Fig. 301)
 S 863-045
 (1) Make sure the airplane is not on jacks.
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A
747-400
MAINTENANCE MANUAL

 S 493-031

 WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO INSTALL
 THE DOOR LOCKS ON THE LANDING GEAR DOORS.  THE DOORS CAN CLOSE
 QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY.  THIS

 CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).

 S 493-058

 (3)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 S 863-032

 (4)  
Make sure the airplane is empty.
　
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