28-26-00
ú ALL ú
ú ú ú 01.101 ú Page 211Sep 28/02
A
757 MAINTENANCE MANUAL
TASK 28-26-00-652-076
4. Tank to Tank Transfer (Fig. 201)
_____________________
A. References
(1)
AMM 06-44-00/201, Wings - Access Doors and Panels
(2)
AMM 12-11-03/301, Fuel Sump Draining
(3)
AMM 20-41-00/201, Static Grounding
(4)
AMM 24-22-00/201, Electrical Power Control
(5)
AMM 27-81-00/201, Leading Edge Slat System
B.
Access
(1)
Location Zone
621 Leading Edge to Front Spar (Right)
(2)
Access Panel
621GB Fueling Station Door (Right)
C.
Procedure
S 212-077
WARNING: DO NOT OPERATE THE HF COMMUNICATIONS SYSTEM OR THE WEATHER
_______ RADAR DURING THE DEFUELING OPERATIONS. THE HF COMMUNICATIONS SYSTEM OR THE WEATHER RADAR COULD CAUSE AN EXPLOSION TO OCCUR.
CAUTION: DO NOT OPERATE THE HYDRAULIC SYSTEM IF THERE IS LESS THAN 600
_______ US GALLONS OF FUEL IN EITHER MAIN FUEL TANK. THE HYDRAULIC SYSTEM CAN BECOME TOO HOT IF THE HEAT EXCHANGER IS NOT IN FUEL.
(1)
Make sure the airplane is grounded (AMM 20-41-00/201).
S 862-078
(2)
Supply electrical power (AMM 24-22-00/201).
S 862-079
(3)
Make sure these circuit breakers on the main power distribution panel, P6, are closed:
(a)
6E4, FUELING QTY
(b)
6E5, FUELING CONTROL
(c)
6E6, FUELING VALVE
(d)
6F14, L FUEL OVRD PUMP
(e)
6F20, R FUEL OVRD PUMP
(f)
6H14, L AFT FUEL BOOST PUMP
(g)
6H17, R FWD FUEL BOOST PUMP
(h)
6H20, R AFT FUEL BOOST PUMP
(i)
6H23, L FWD FUEL BOOST PUMP
S 862-080
(4)
Make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:
(a)
11C34, FUEL QTY 1 or FUEL QTY L
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
28-26-00
ú ALL ú
ú ú ú 01.101 ú Page 212Sep 28/02
A
757
MAINTENANCE MANUAL
(b)
11L19, FUEL QTY 2 or FUEL QTY R
