S 862-150
(27)
Operate the leading edge and trailing edge flaps from 0 to 25 to 0 (AMM 27-58-00/501 and 27-81-00/501).
(28)
On airplanes with a HMG: turn the HMG OFF (AMM 24-25-00/501).
(29)
Remove the pressure from the PTU pump side pressure line.
(30)
Connect the pump side pressure line back to the PTU.
S 862-151
S 862-152
S 492-153
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
ALL ú ú 02 Page 224 ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 492-154
(31)
Connect the hydraulic ground cart to the left Alternating Current Motor Pump (ACMP) case drain line.
S 862-155
(32)
Apply 400 psi to the left ACMP case drain line until approximately two gallons of fluid have been flushed into the waste container.
S 492-156
(33)
Connect the case drain line back to the left ACMP.
S 492-157
(34)
Connect the hydraulic ground cart to the pressure line of the Left ACMP.
S 872-158
(35)
On Package Freighters or Combi Airplanes, operate the main cargo door three times (AMM 52-34-00/201).
S 862-159
(36)
Put the left FLT CONTROL SHUTOFF switch on the Accessory Panel (P61) to ON.
S 172-161
(37)
Operate the elevators until three gallons of fluid are flushed into the waste container (AMM 27-31-00/501).
S 172-160
(38)
Operate the rudder until one gallon of fluid is flushed into the waste container (AMM 27-21-00/501).
S 862-162
(39)
Remove the pressure from the left ACMP pressure line.
S 862-163
(40)
Put the left FLT CONTROL SHUTOFF switch on the Accessory Panel (P61) to OFF.
S 872-164
(41)
Pump the brakes full strokes to actuate the brake shuttle valves.
S 172-165
(42)
Open the bleed fitting on each left truck brake and allow at least
1.5 pints of fluid to bleed from each brake.
NOTE: There are four brake bleed fittings on the left main gear
____
truck.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 1(55)
