S 862-448
(4)
Make sure all radio or radar equipment is off and locked out if it is closer than the minimum separation distance allowed in Table 201.
S 942-449
(5)
Do these steps to prepare metal support equipment such as work platforms/stands, ladders etc:
NOTE: These steps apply to all metal support equipment within a
____
50-foot radius of an open fuel tank.
(a)
All support equipment must be in place before you begin the fuel purging procedure.
(b)
Bond the support equipment at an approved airplane bonding location.
(c)
Ground the support equipment to the same earth ground as the airplane.
G.
Prepare the Venturi Type Ventilation Equipment for Purging
NOTE: There are two types of air ventilation equipment:
____ -Venturi type ventilation equipment
-Air blower type ventilation equipment
Use one or both types of air ventilation equipment to purge the fuel tank.
S 482-524
(1)
MAIN TANK;
Connect these components (Fig. 203):
(a)
3 inch Lamb air mover (32119)
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(b)
Adapter assembly (3MIT65B40500-1)
(c)
Air supply hose.
S 482-523
(2)
RESERVE AND SURGE TANK; Connect these components (Fig. 203):
(a)
3 inch Lamb air mover (32119)
(b)
Base assembly (P/N 6MIT65B00112-1)
(c)
Cover assembly - reserve tank (6MIT65B00112-2)
(d)
Cover assembly - surge tank (6MIT65B00112-3)
(e)
Air supply hose.
S 482-525
(3)
CENTER WING TANK; Connect these components (Fig. 203):
(a)
3 inch Lamb air mover (32119)
(b)
Base assembly (P/N 6MIT65B00112-1)
(c)
Air supply hose.
S 482-527
(4)
Do these steps to prepare the main tank air mover ventilation equipment:
(a)
Go to the applicable No. 1, 2, 3 or 4 overwing fill port on top of the wing.
(b)
Ground the adapter assembly (3MIT65B40500-1) to the airplane ground.
(c)
Remove the cap on the overwing fill port.
(d)
Install the adapter assembly and Lamb air mover in the overwing fill port.
(e)
Put the exhaust horn of the air mover in the overwing fill port vertically above the wing to let the fuel vapors leave the fuel tank.
(f)
Put the portable air compressor a minimum of 100 feet from the fuel tank that will be opened, unless the air compressor is explosion-proof.
(g)
Connect the air compressor to the Lamb air mover with the air supply hose.
(h)
Connect a power supply to the air compressor.
S 482-547
(5)
Do these steps to set-up the surge, reserve, and center wing tank ventilation equipment:
S 482-528
(6)
Do these steps to set-up the surge, reserve, and center wing tank ventilation equipment:
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WARNING: MAKE SURE THE AIR MOVER ASSEMBLY IS AWAY FROM THE
_______ AIRPLANE. THE EXHAUST AIR FROM THE AIR MOVER EXHAUST HORN MUST VENT AWAY FROM THE AIRPLANE STRUCTURE. IF THE EXHAUST AIR FLOWS AGAINST THE AIRPLANE STRUCTURE, A BUILD-UP OF STATIC ELECTRICITY CAN OCCUR. IT IS POSSIBLE THAT THE STATIC ELECTRICITY CAN IGNITE THE FUEL VAPOR AND CAUSE AN EXPLOSION. AN EXPLOSION CAN CAUSE SERIOUS INJURY OR DEATH TO PERSONS AND DAMAGE TO EQUIPMENT.
(a)
Set-up the air mover ventilation equipment away from the airplane.
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