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TM 10-4930-247-13&P
4-17.
2-INCH FUEL HOSE ASSEMBLY HOSE REPAIR -cont.
(3)
Push valved dry break coupling assembly (8) into end of hose (9).
(4)
Slide sleeve (1) onto hose (9) and position it about 12 inches back from end of hose.
(5)
Push valved dry break assembly (4) into end of hose (9).
(6)
Perform continuity test between valved dry break couplings (4 and 8) to ensure ground wires are firmly
seated against couplings. Continuity must exist.
(7)
Wrap end of clamp (1, figure 4-8) around hose (3) and through seal (2). Position clamp about 1-inch
from end of hose.
(8)
Wrap another loop of clamp (1) around hose (3) and through seal (2).
(9)
Position tag end of clamp (1) in slots of clamping tool (4). Tool nose (5) should fit snug against seal (2).
(10)
Apply pressure to gripper lever (6) and turn handle (7) until clamp (1) is snug. Tool will lock in place
when correct tension is applied. Reposition tool as required.
CAUTION
Strapping can damage hose if over tightened.
(11)
Turn handle (7) to the right (clockwise) to tighten strapping (1). Continue turning handle until strapping
stops moving through seal (2).
CAUTION
Strapping may break if operator does not release tension on handle when bending
over seal.
(12)
While reversing handle (7) 3/4 turn, roll tool (4) to opposite side of seal (2). (This will bend strapping
and prevent it from slipping through seal when tool is removed.)
(13)
Pull cutting handle (8) on tool to cut strapping (1).
(14)
Remove tool (4) while holding strapping stub down on seal (2) with thumb.
(15)
Clinch end of clamp (1) by hammering down tag end clamp over seal (2).
(16)
Repeat steps (7) through (15) for three remaining clamps (2,3, and 7, figure 4-9). Clamps should be 1-
inch from end of hose and 2-inches apart.
(17)
Slide sleeve (5) over clamps (6 and 7).
(18)
Slide sleeve (1) over clamps (2 and 3).
(19)
Install hose assembly in fuel system (para 3-4b).
(20)
Start up fuel system (para 2-12g) and test repaired hose for leaks.
4-28
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