737-300 400 500 AMM 飞机维护手册 液压 HYDRAULIC POWER(24)

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 S 866-079
 (4)  Remove hydraulic power from system A (if it is on)
 (Ref 29-15-00/201).
 S 216-080
 (5)  Make sure the pressure in system B is a minimum of 2800 psi.
 S 976-256
 (6)  If you use the ammeter or amp-clamp method do this step:
 NOTE:____ This amperage is the System B Basic Current, and must
 be subtracted from all other system B amperage readings
 before you use Fig.  603 to find the equivalent flow.
 (a)  Read the amperage and write it on the data sheet for step 1.
 NOTE:____ Write down a flow value of zero for step 1.

 S 976-257
 (7)  
If you use the flow meter method, read the flow value and write it on the data sheet for step 1.

 S 796-082

 (8)  
Do these steps to find the leakage of the case drain for the trailing edge (TE) flap motor:

 (a)  
Set the flap control lever to zero units.

 (b)  
Read the amperage or the flow value and write it on the data sheet for step 2.

 

 S 796-083
 (9)  Do these steps to find the leakage of the control valve for the TE flaps:
 (a)  
Set the flap control lever to 25 units.

 (b)  
Put the arm switch for the ALTERNATE FLAPS in the OFF position.

 (c)  
Read the amperage or the flow value and write it on the data sheet for step 3.

 S 796-084
 (10) Do these steps to to find the leakage of the leading edge flaps and slats:
 (a)  
Set the flap control lever to zero units.

 (b)  
Read the amperage or the flow value and write it on the data sheet for step 4.

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 ALL  ú ú 01 Page 626 ú Jul 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 866-086
 (11) Do these steps to put the airplane back to its initial condition:
 (a)  Set the flap control lever to 25 units.
 (b)  Put the arm switch for the ALTERNATE FLAPS in the ARM position.
 (c)  Set the flap control lever to 40 units.
 NOTE:____ The flaps will not move.

 S 796-087

 (12) Do these steps to find the leakage of spoilers No. 2 and No. 7 when they are retracted:
 (a)  
Put the SPOILER B switch in the ON position.

 (b)  
Read the amperage or the flow value and write it on the data sheet for step 5.

 S 796-088
 (13) Do these steps to find the null leakage of spoiler No. 7:
 (a)  
Turn the control wheel approximately 40 degrees clockwise.

 (b)  
Read the amperage or the flow value and write it on the data sheet for step 6.

 S 866-089
 (14) Do these steps to find the null leakage of spoiler No. 2:
 (a)  
Turn the control wheel approximately 40 degrees counterclockwise (from its center position).

 (b)  
Read the amperage or the flow value and write it on the data sheet for step 7.

 S 796-090
 (15) Do these steps to find the null leakage for spoilers No. 2 and No. 7:
 (a)  
Put the control wheel in its center position.

 (b)  
Put the speed brake lever half of the distance between the ARMED and the FLIGHT DETENT positions.

 (c)  
Read the amperage or the flow value and write it on the data sheet for step 8.

 S 866-091
 (16) Do these steps to put the airplane back to its initial condition:
 (a)  
Put the speed brake lever in the DOWN position.

 (b)  
Put the SPOILER B switch in the OFF position.

 S 796-092
 (17) Do these steps to find the null leakage of the power control unit for the aileron:
 (a)  Put the FLT CONTROLS B switch in the ON position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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 ALL  ú ú 01 Page 627 ú Mar 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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