CHAPTER 4 FOURTH ECHELON TESTING PROCEDURES AND FINAL TESTING

CHAPTER 4

FOURTH ECHELON TESTING PROCEDURES AND FINAL TESTING

Section I. FOURTH ECHELON TESTING PROCEDURES

Comply with the instructions preceding the

29. General

body of each chart before proceeding to the

a. Testing procedures are prepared for use

chart. Perform each test in sequence. Do not

by Signal Field Maintenance Shops and Signal

vary the sequence. For each step, perform all

Service Organizations responsible for fourth

the actions required in the Test equipment,

echelon maintenance of signal equipment to

control settings and Equipment under test,

determine the acceptability of repaired equip-

control settings columns; then perform each

ment. These procedures set forth specific re-

specific test procedure and verify it against

q u i r e m e n t s that repaired signal equipment

its performance standard.

must meet before it is returned to the using

organization. The testing procedures may also

30. Test Equipment and Materials Required

be used as a guide for testing equipment re-

All test equipment, materials, and other

paired at third echelon if the proper tools and

equipment required to perform the testing

test equipment are available. A summary of

procedures given in this section are listed in

the performance standard is given in para-

the following chart and are authorized under

graph 38.

TA 11-17 and TA 11-100(11-17), or are repair

b. Each test depends on the preceding one

part items of the subject equipment authorized

for certain operating procedures and, where

applicable, for test equipment calibrations.

for stockage at fourth echelon level.

Multimeter TS-352(*)/Uab

6626-242-5023

TM 11-5527

Voltmeter, Meter ME30A/U or Voltmeters, Elec-

6625-669-0742

TM 11-5132

tronic ME-30B/U or ME-30C/U

Light Assembly, Electric MX-1292/PAQ

6695-537-4470

TM 11-5540

Tube Socket Adapter MX-1258/U

5935-378-5009

NAVSHIPS

91798

Transformer, Variable CN-16/U

None

5950-235-2086

Resistor, 10,000 ohms

5905-199-1600

None

* Indicates model TS-352/U. TS-352A/U, or TS-352B/U.

Multimeter AN/URM-105 may be used in place of Multimeter TS-352 (*)/U.

31. Test Facilities

32. Modification Work Orders

No special test facilities are required to per-

The performance standards listed in the

form the tests given in this procedure. All

tests (para 34 through 37) assume that the

tests should be performed using 115- to 120-

modification work order listed below has been

volt, 60-cycle, ac power. All connecting cords

performed. A listing of current modification

are a part of the test equipment or the equip-

work orders will be found in DA Pamphlet

ment under test unless otherwise indicated on

310-4.

the applicable illustration.

MWO 6626-274-36/1

24 Jun 59

Adjacent to nameplate

All sets