Figure 10-1. Fuel System Assessment Logic
10-6. FUEL LINES
Fuel Line Fabrication. Repair fuel lines by
replacement sections, fabricated from rubber hose.
Rubber hose should be secured by hose damps and
sealant (Figure 10-2).
Adhesives and materials must be
compatible with the system fluid.
Bead Repair. To improve the strength of the
joint, and if an adequate size range of hoses are not
available, fuel lines may be repaired. First, form a bead
on the end of the tubing to be joined. Next, wrap safety
wire around the tube and set it in adhesive or sealant
This will help seal the repair (Figure 10-3). For repairs
using dual damps, position damp securing screws 180
degrees opposite each other.
10-7. BEND DAMAGE. Repair fuel tubes with bends
by removing the damaged bend and installing a new
tubing section. Use rubber hose and sealant. Damage
to lines with wire braid or bellows will be acceptable as
long as the affected area does not leak under pressure