737-300 400 500 AMM 飞机维护手册 SERVICING(74)

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 S 863-020
 (4) Make sure the air valve is fully open.
 (a) Put the other end of the hose in a drain bucket.
 CAUTION: CLEAN ALL THE LEAKED HYDRAULIC FLUID FROM THE TIRES_______
 IMMEDIATELY. THE FLUID CAN CAUSE DAMAGE TO THE TIRES.
 (b) Fill the shock strut with the fluid from the service cart until
 the fluid flows from the top of the strut through the waste
 fluid hose.
 1) Continue to fill the shock strut until the hydraulic fluid
 which flows into the drain bucket is free of bubbles.
 S 613-028
 (5) AIRPLANES THAT ARE LIFTED ON JACKS;
 Repeat the following steps only when you want to fill the shock
 strut fully.
 CAUTION: MAKE SURE THE END OF THE WASTE FLUID HOSE IS ABOVE THE SURFACE_______
 OF THE WASTE FLUID. DIRTY FLUID WILL BE SUCTION BACK INTO THE
 SHOCK STRUT IF THE END OF THE HOSE IS BELOW THE SURFACE OF THE
 WASTE FLUID.
 (a) Slowly lift and lower the shock strut with an axle jack through
 one complete compression and extension cycle.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

BAC27DLG0107
Nose Landing Gear Shock Strut Servicing Figure 302
T93728
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (b) (c)  Remove the axle jack.Fill the shock strut with the fluid from the service cart until the fluid flows from the top of the shock strut and through the waste fluid hose.
 (6)  S 423-008Disconnect the service cart. Install the seal cap for the check valve at the bottom of the shock strut.
 (7)  S 833-030AIRPLANES THAT ARE LIFTED ON JACKS; Lower the nose of the airplane with the jack until the shock strut is fully compressed and the overflow fluid no longer flows into the container.
 NOTE:____ If no fluid will flow from the shock strut when you do this step, too much fluid was lost when you did step (4). You must do step E.(2) and steps F.(1) through (5) again.
 (a)  Remove the jack.
 (8)  S 613-011Add an extreme pressure additive on the shock strut fluid on airplanes that do not use a fully formulated (shock strut) fluid. (a) Remove the hose from the air valve at the top of the shock strut and remove the air valve. (b) Remove a minimum of four ounces of fluid and put in two ounces of lubrizol. 1) Fill the shock strut with clean fluid. (c) Install the air valve in the shock strut.
 (9)  S 613-012Inflate the shock strut with dry air or nitrogen according to the servicing chart (Fig. 302).
 NOTE:____ For operational limits during towing of the airplane, refer to AMM 09-10-00/201.

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 ú ú  ú 01.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 306Jul 12/02 

A
737-300/400/500MAINTENANCE MANUAL
 S 863-013
 (10)
 Put the Airplane in its Usual Condition.

 S 613-014

 (11)
 After 5 to 10 landings, do the steps that follow:

 (a)
Measure the shock strut pressure and X dimension.

 1)  Inflate the shock strut according to the servicing chart (Fig. 302) if it is necessary.

 (b)  
Service the shock strut with air or nitrogen (Fig. 302).

 

 TASK 12-15-41-703-014
 3.  Examine the Fluid Level of the Shock Strut for the Nose Landing Gear
____________________________________________________________________
 A.  General
 (1)  To do the check of the fluid level, measure the pressure and the extension of the shock strut. You must do this two times with the airplane at a different weight each time. You then compare the quantities you have measured with those in the servicing chart for the shock strut.
　
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