TM 9-6116468-13
CAUTION
To prevent contamination, install plastic bags on all fuel supply and
return lines removed from fuel tank and all ports on the tank and se-
cure the bags with rubber bands.
NOTE
Provide a suitable container to hold the drained fuel, maximum 101.7
gallons (385 liters).
1.
Remove unit hood assembly (1, figure 4-61) as instructed in paragraph 4.14.
2. Deleted.
3.
Insert fuel hose assembly (38) into filler neck (33) of fuel tank (49) slowly until it hits the bottom of
the tank.
4.
Loosen damp (53) and remove fuel hose (52) from delivery side of electrical fuel pump (60); leave
fuel hose (52) with clamp (53) on fuel tank (49).
Provide a suitable fuel hose for pumping out the fuel.
5.
Connect fuel hose (52) to delivery side of electrical fuel pump (60).
6.
Switch on electrical fuel pump (60) with FUEL TANK PROP ON switch on control cabinet assembly.
7.
Extract as much fuel as possible, then switch off electrical fuel pump (60) with FUEL TANK PUMP
OFF switch on control cabinet assembly.
NOTE
Provide a suitable container for the remaining fuel.
8.
Place a suitable container under bottom plate of base frame (2), remove drain plug (47), and sealing
ring (48). Allow remaining fuel to flow out of fuel tank (49) into container.
Use a new sealing ring.
9.
Place a new sealing ring (48) and drain plug (47) on fuel tank (49).
10. Remove electrical fuel pump (60) as instructed in paragraph 4.78.
CAUTION
Tag fuel lines before removing them noting position for proper installation.
11. Remove hollow screw (3), sealing ring (4), fuel return line (5), sealing ring (6), nipple (7), and seal-
ing ring (8). Discard sealing rings (4, 6 and 8).
4-188
Change 1
