UNSCHEDULED SERVICING
_____________________ ú COLD WEATHER MAINTENANCE COLD WEATHER MAINTENANCE Servicing EXTREME COLD WEATHER MAINTENANCE Servicing
CHAPTER 12 - SERVICING TABLE OF CONTENTS
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Chapter
Section
Subject_______ Page____ Effectivity___________
12-21-10
301 ALL
12-21-09
301 ALL
12-21-30
301 ALL
12-21-34
301 ALL
12-22-00
12-22-02
301 ALL
12-23-00
301 ALL
12-25-00
12-25-01
301 ALL
12-30-00
12-33-00
12-33-01
301 ALL
12-33-02
301 ALL
12-CONTENTS
GUN.1 Page 4 Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
FUEL TANK PRESSURE FUELING
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1. General (Fig. 301)
_______
A. The pressure fueling method is usually used to refuel the airplane. During pressure fueling, the fuel quantity indicating system (FQIS) (AMM 28-41-00) operates with the pressure fueling system. The FQIS processor controls the automatic fueling operation. The fueling crew can operate the fueling control switches at the fueling control panel to stop the FQIS processor during the fueling operation. If you can not refuel the airplane by the automatic operation, you can refuel the airplane by the manual operation.
B. When thunderstorms or lightening are within a 10 mile (16 kilometer) radius of the immediate area, the refueling procedure should stop.
C. Strong wind conditions can cause a build-up of static electricity. Large charges of static electricity can develop on support equipment while parked as a result of the movement of dust particles and air currents during strong wind conditons. Strong wind conditions can also cause the unwanted movement of items or equipment which can hit the airplane or injure persons. Wind gusts can damage the airplane structure. Fueling procedures should stop if strong wind conditions are present.
D. The fueling station is found in the right wing leading edge, near slat No. 3. The fueling station contains the pressure fueling adapters, grounding points, a light, an interphone jack, and a fueling control panel. Aluminum foil markers installed on the fueling station door give the fueling procedures, and the applicable cautions.
E. It is necessary to have 28v dc of electrical power to refuel the
airplane.
NOTE: You can get electrical power from the ground handling bus or the
____
hot battery bus.
F. If you cannot get electrical power, you can operate the fueling shutoff valves manually (AMM 28-21-00/001). While there is no electrical power, you can measure the fuel quantity if you use the fuel measuring sticks. The fuel measuring sticks are found in the wing lower skin (AMM 28-44-00/001).
G. Drain the fuel tank sumps before fueling to keep water out of the fuel tank (AMM 12-11-03/301).
H. There is a fuel overfill system to stop fuel overfill leakage (AMM 28-21-00/001). If the fuel overfill system does not operate correctly and there is fuel leakage, stop the pressure fueling immediately to keep the fire hazard to a minimum.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-11-01
ALL ú ú 01 Page 301 ú May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
Pressure Fueling
Figure 301
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-11-01
ALL ú ú 03 Page 302 ú Sep 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A07994
A
757
MAINTENANCE MANUAL
I. Fuel loading limits:
(1)
The following fuels are approved for use on 757 airplanes:
~................................................................ | FUEL TYPE | SPECIFICATIONS | .................................................................. | Kerosene | ASTM D1655-75 Jet A | | (AVTUR) | ASTM D1655-75 Jet A1 | | | MIL-T-83133 JP-8 Grade | | | British DERD 2453 | | | British DERD 2494 | | | Canadian CAN 2-3.23 | .................................................................. | Wide Cut Fuel | ASTM D1655-75 Jet B | | (AFTAG LP-4) | MIL-T-5624K JP-4 Grade | | | British DERD 2454 | | | British DERD 2486 | | | Canadian CAN 2-3.22 | .................................................................. | High Flash Point Fuel | MIL-T-5624K JP-5 Grade | | (AVCAT JP-5) | British DERD 2498 | 2................................................................1 中國航空網(wǎng) m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：757 AMM 飛機(jī)維護(hù)手冊(cè) SERVICING 1(2)
