TM 11-5820-922-40-1
WARNING
used , allow it to thaw at room temper-
ature prior to use. If either of the
Adhesives are irritating to the
two-part kits is used, mix approximately
skin and eyes upon contact, and
equal quantities of Part A and Part B,
may emit harmful vapors. Use
using a disposable aluminum cup for
only with adequate ventilation.
mixing. Mix thoroughly.
Avoid all skin and eye contact.
Use protective clothing such as
rubber gloves, apron and eye
9.
Bond the jumper wires to the cir-
protection. Wash off immedi-
ately any accidentally contam-
cuit board by applying a uniform coating
of adhesive over the entire length of
inated skin area. Hand washing
facilities and eye wash foun-
each jumper wire. Do not use more adhe-
sive than necessary to completely cover
tain should be provided. Do
the jumper wires.
not take internally.
10.
Allow the adhesive to gel for
3. Any one of the Narmco Epoxy Adhe-
sive Kits No. 3135 listed in table 3-2
1 hour minimum at room temperature.
may be used as the repair adhesive. If
Then bake for 1 hour minimum at a tem-
the frozen premix kit is used, allow it
perature of 150 10 F, or allow the
adhesive to dry at room temperature for
to thaw at room temperature prior to
use. If either of the two-part kits is
24 hours minimum. If adhesive is oven
cured , allow it to cool at room temper-
used , mix small, approximately equal,
quantities of Part A and Part B, using a
ature after removal from the oven.
disposable aluminum cup for mixing. Mix
thoroughly.
REPAIR OF THERMAL MOUNTING PLATE
ON HIGH-DENSITY PRINTED WIRING BOARDS.
4.
Thermal mounting plate on high-density
Carefully apply a thin smooth coat
of adhesive under the thermal mounting
printed wiring boards may be repaired by
pad. Do not use more adhesive than
performing the following steps:
necessary.
1.
Carefully clean out all the loose
adhesive from the area between the
5.
Carefully clamp the thermal mount-
lifted thermal mounting pad and the
ing plate to the board.
printed wiring board using an orange
stick, or equivalent hand tool.
6.
Allow the adhesive to gel for at
least 1 hour at room temperature.
WARNING
Use Freon with good ventila-
WARNING
tion. Avoid prolonged or
repeated breathing of vapor.
Handling hot items presents a
Avoid contact with skin and
serious injury potential.
eyes. Do not take internally.
Asbestos gloves are required.
2.
Clean the area to be repaired with
Freon TMC solvent to remove residual
7.
Bake the board in an oven at 150
surface contaminants.
10 F, for at least 1 hour.
