(a)
Set-up the ventilation blower(s) in an area where the fuel tank entry will be made. 1) Make sure the ventilation blower will be in an area free
from fuel vapor when the access doors are open.
(b)
Attach the static grounding cable on the ventilation blower(s) to an approved ground source.
(c)
Do these steps to connect an air supply to the ventilation blower: 1) If shop air is used, connect an air supply hose to the
ventilation blower. 2) If a portable air compressor is used, do these steps:
a) Put the air compressor a minimum of 100 feet from the fuel tank that will be opened, unless the air compressor is explosion-proof.
b) Connect an air supply hose from the air compressor to the ventilation blower. c) Connect the portable air compressor to a power source.
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28-11-00
ALL ú ú 01 Page 232 ú May 20/98
A
757
MAINTENANCE MANUAL
(d)
Do these steps to connect the air ducts to the ventilation blower. 1) Connect the eight inch air duct to the ventilation blower
outlet port. 2) Connect enough air duct segments to get to the access door where you will do maintenance. 3) Use the attached bonding connections to electrically bond each air duct segment.
(e)
For main tank maintenance, attach the access door adapter to the end of the air duct.
(f)
For center tank maintenance, do these steps to prepare the air ducts that will go inside the fuel tank:
NOTE: The air ducts will be positioned inside the fuel tank at
____ the location where you will do the maintenance.
1) Attach an adapter/reducer to the end of the eight inch air
duct segments. 2) Attach the four inch air ducts. 3) Use the attached bonding connections to electrically bond
each air duct segment. 4) Make sure you have enough segments to route the air ducts to the maintenance area.
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本文鏈接地址：757 AMM 飛機(jī)維護(hù)手冊(cè) 燃油 CHAPTER 28 - FUEL 1(45)
