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Aviation Structural Mechanic (H&S) 3&2 - How airplanes are built and how to maintain them | Next
RECOMMENDED READING LIST |
Figure 3-35.—Injection of sealing compound.
NOTE: The trigger must be released
approximately every 30 seconds to allow the
gun piston to return before another cycle can
begin.
Replace the screw in the hole that has just been
injected. Proceed in the same manner on the next
adjacent hole (the one from which sealant has protruded)
until the area to be resealed is completed. After all
injection hole screws have been installed, remove
excess sealing compound from the wing by scraping
with a wood or plastic blade. The area may be cleaned
with solvent.
CAUTION
Do not use toluene for cleaning any surface
with a corrosion-resistant or fuel-resistant
coating. Toluene will remove the coating and
cause the loss of the coating’s protective
properties.
If the sealant is exceptionally slow to inject, the tank
may be heated to 110°F. Heating can be accomplished
by using electric blankets.
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