TB 1-1520-238-20-140
The ambient conditions during installation can affect the cure times for the
adhesive. Do not install CMBs at ambient temperatures below 50F, or the
adhesive will not properly cure.
Do not apply paint or corrosion preventive compound over the top of the
CMB. Doing so can prevent proper CMB read/write operation. If paint or
CPC does get on the CMB, use acetone to clean the CMB, and then try
reading the CMB. If the CMB cannot be read in its entirety, remove and
install a new CMB in its place.
Care should be taken not to damage the metal surface of the component
when preparing a component for CMB installation.
NOTE
Procure all necessary tools and materials from supply before starting the
The new CMB should be installed only after all major repairs to the
component have been completed and painting is completed.
Refer to Figures 3 thru 211 for proper placement of CMBs on components.
If a component is being cannibalized, each component that requires a CMB
(See Table 1) must have its own CMB tag tied to it with all applicable
maintenance data uploaded to the CMB for that component prior to
shipping.
3.4 Installing a CMB on a component with any coated surface (paint,
primer, clear coating, Pro-seal, etc.).
Reference paragraph 3.5 for
installation of CMBs to bare metal surfaces.
CAUTION
Care should be taken not to expose any bare metal.
NOTE
Use of power tools is not permitted unless approved by RDECOM Aviation
Engineering Directorate (AED).
The adhesive must form
a
complete
bead
around
the
outside
circumference of the CMB.
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