S 865-034
(18)
Decrease the pressure of the air source to zero.
S 865-035
(19)
On the left system reservoir, hold the manual depressurization valve in the open position until the RSVR light for the left system, on the hydraulic control panel, comes on.
S 215-036
(20)
Make sure the EICAS message, L HYD RSVR PRES, shows on the EICAS display.
S 215-037
(21)
Make sure the L RSVR PRESS indication on the EICAS display shows LOW.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-35-00
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A
757
MAINTENANCE MANUAL
S 865-044
(22)
On the right system reservoir, hold the manual depressurization valve in the open position until the RSVR light for the right system, on the hydraulic control panel, comes on.
S 215-045
(23)
Make sure the EICAS message, R HYD RSVR PRES, shows on the EICAS display.
S 215-046
(24)
Make sure the R RSVR PRESS indication on the EICAS display shows LOW.
S 865-053
(25)
On the center system reservoir, hold the manual depressurization valve in the open position until the RSVR light for the center system, on the hydraulic control panel, comes on.
S 215-054
(26)
Make sure the EICAS message, C HYD RSVR PRES, shows on the EICAS display.
S 215-055
(27)
Make sure the C RSVR PRESS indication on the EICAS display shows LOW.
S 865-062
(28)
Slowly increase the pressure of the air source to 33 |1 psi.
S 215-063
(29)
Make sure the (L, C, R) RSVR PRESS indication on the EICAS display shows NORM.
S 885-064
(30)
Let the temperature of the reservoir decrease for a minimum of 10 minutes.
(31)
Decrease the pressure of the air source to zero.
(32)
Close the shutoff valve on the air source.
S 865-067
(33)
Push on the manual bleed valve, on the reservoir pressurization module, to remove the pressure from the air supply line of the air source.
S 865-065
S 865-066
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-35-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 485-068
(34)
Remove the air source from the gage port, GA, on the reservoir pressurization module.
S 435-069
(35)
Install the plug and the O-ring in the gage port, GA, on the reservoir pressurization module.
S 485-070
(36)
Replace the plug (BACC14AD06JL) in the air pressure line, for each hydraulic reservoir, with a vent.
NOTE: The vent in the air pressure line to the left hydraulic
____ reservoir is on the forward bulkhead of the left wheel well.
The vent in the air pressure line to the right hydraulic reservoir is on the forward bulkhead of the right wheel well.
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本文链接地址：757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 2(189)
