DEPOT OVERHAUL STANDARDS
of Depot Overhaul
The tests outlined in this chapter are de-
signed to measure the performance capability
of a repaired equipment. Equipment that is to
be returned to stock should meet the standards
given in these tests.
a. Repair Standards. Applicable procedures
4-3. Power Output, Regulation, Ripple, and
Efficiency Test at 220-Volt Input
of the depots performing these tests and the
general standards for repaired electronics
a. With 220-volt, 3-phase, 60-cps input power,
equipment given in TB SIG 355-1, TB SIG
355-2, and TB SIG 355-3 form a part of the
b. With no load connected to the power sup-
b. Technical Publication. The technical pub-
switch to ON. The TS-352B/U should indicate
lication applicable to the equipment to be
between 26.5 and 31 volts. The PP-4606A/G
tested is TM 11-6130-243-12-1.
VOLTAGE meter should indicate within 5
percent of the reading on the TS-352B/U.
c. Modification Work Orders. Perform all
modification work orders applicable to this
c. Set the PP-4606A/G INPUT POWER
equipment before making the tests specified.
circuit breaker switch to off.
DA Pam 310-7 lists all available MWO'S.
d. Connect the load, consisting of three each
0.41-ohm, 3,400-watt resistors connected in
4-2. Test Facilities Required
Connect the TV-100 to measure the output cur-
The following items are required for depot
circuit breaker switch to ON. The TS-352B/U
a. Test Equipment.
should indicate no less than 25 volts. The TV-
100 should indicate 200 amperes 20. Depress
the PP-4606A/G PUSH TO INDICATE
switch. Indication on the CURRENT meter
should be within 5 percent of the current
reading obtained on the TV-100.
e. The ME-30(*)/U
than 1.3 volts.
dicate less than 6,700 watts total.
g. Set the PP-4606A/G INPUT POWER
circuit breaker switch to off and disconnect the