601.
(f)
Fill all the reservoirs before the flight.
(g)
Large quantities of hydraulic fluid in the area of the leak must not cause damage to the airplane equipment.
B. Do a Check of the Hydraulic System External Leakage (Table 601)
S 016-031
(1)
Get access to the component which has a leak.
S 866-032
(2)
Make sure the component has pressure on it when you do a check of the leak rate.
S 866-033
(3)
If possible operate the component.
(4)
Clean all surfaces of the component which has a leak.
(5)
Do a check of the leakage rate as shown in Table 601.
S 166-034
S 796-035
NOTE: There are approximately 20 drops in a cubic
____
centimeter and 75,700 drops in a gallon.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
ALL ú ú 01 Page 617 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
~.............................................................................. | Hydraulic System External Leakage Limits | | Table 601 | ~............................................................................... | | NORMAL OPERATION | DISPATCH LIMITS TO | | COMPONENTS | LIMITS *[1] | AVOID DELAY *[2] | ................................................................................ | Hydraulic Pumps *[3] | 5 Drops in a Minute | 10 Drops in a Minute *[4] | ................................................................................ | Hydraulic Motors | 5 Drops in a Minute | 10 Drops in a Minute *[4] | ................................................................................
| Dynamic Seals for All | 4 Drops in a Minute | 15 Drops in a Minute |
| Actuators Except the | (Stopped or in | (Stopped or in |
ú| Flight Controls *[5] | Operation) | Operation) |
ú................................................................................ ú| Dynamic Seals for the | 8 Drops in a Minute | 30 Drops in a Minute *[4] | ú| Flight Controls | (Stopped or in | (Stopped or in | ú| | Operation) | Operation) | ú................................................................................ ú| Static Seals | 1 Drop in 10 Minutes | 1 Drop in 10 Minutes | ú................................................................................ ú| B Nuts, Tubing, Hoses | No leakage | No leakage | ú2........................…........................…............................1 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(102)
