TM 9-4931-355-14
CHAPTER 4
REPAIR INSTRUCTIONS
Section I. GENERAL
referenced to the applicable section. Refer to TM 9-
4-1. Scope
1240-369-34 for repair instructions for laser range finder
This chapter contains instructions for the repair
units.
of the test set. Also any inspection or test required
during the process of repair will be discussed or
Section II. REPAIR OF RECEIVER-TRANSMITTER TESTER
4-2. General.
No special instructions are necessary for
replacement of the knob or connector cover. Touch up
Repair of the R/T tester is limited to
or replace illegible equipment markings in accordance
replacement of MODE SELECT switch knob, connector
with MIL Standard 130 using white paste engraving
cover for connector 6A7J1, and touch up or replacement
filler.
of illegible equipment markings.
4-4. Inspection.
4-3. Repair.
Refer to chapter 5 for final inspection criteria.
Section III. REPAIR OF TESTER ADAPTER
4-5. General.
(2) Clean mating surface of tester adapter
with a wiping rag, CCC-C-458, dampened with methyl
Repair of the tester adapter is limited to
ethyl ketone, TT-M-261.
replacement of four inserts, the outer window gaskets,
and touch-up painting of illegible markings.
(3) Coat mating surface of tester adapter with
primer SS4004 Allow to dry at room temperature for a
4-6. Repair.
minimum of 30 minutes.
a. Replacement of Inserts. Replace damaged
(4) Prepare replacement outer window gasket
inserts with four inserts MS124695.
No special
by rubbing adhesive RTV-8262, catalyzed with four
instructions are necessary for replacement.
times the amount of catalyst normally used, into mating
b. Replacement of Outer Window Gasket.
surface Remove excess adhesive with a dry tissue.
(1) Remove damaged outer window gasket
(5) Prepare adhesive by mixing adhesive with
from tester adapter.
catalyst in a clean, nonabsorbent container. Coat the
WARNING
mating surfaces of both the outer window gasket and the
Methyl ethyl ketone used in the
adapter with adhesive.
following
step
is
toxic
and
(6) Install the outer window gasket to the
flammable. Use only in a well-
tester adapter.
ventilated area. Avoid prolonged or
c. Repair of Markings Touch up or replace illegible
repeated breathing of the vapor.
markings in accordance with MIL Standard 130 using
Avoid prolonged or repeated contact
white paste engraving filler.
with the skin. Keep away from heat
and open flames.
4-1
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