TM 11-6625-847-45
Test equipment
Characteristics
Test equipment
Characteristics
Tee Connector UG-
Type BNC (FSN 5986-
Voltmeter, Electronic
Frequency range: 0.1 mc
274B/U.
702-0125)
AN/URM-146.
to 1,000 mc.
Test Cables W16, W1,
(Part of SM-442A/GRC
Voltage range: 300
W2, WS, W22 and
Cable Kit).
microvolts to 3 volts
W25.
rms.
Power Supply PP-3940/
Voltage range 0 to 30
Electronic Counter,
Frequency range: 10 cps
G.
volts dc.
Digital Readout AN/
to 100 mc.
Current range: 150 ma
USM-207.
(min).
Frequency selective
Frequency range:20 kc
Analyzer, Spectrum
20 cps to 30 kc, 10 mv
to 30 mc.
TS-728(*)/U.
to 1 volt, p band-
Voltage range: 0 to 150
width
mlllivolts.
Attenuator, HP355D
Attenuation range 0 to
Sensitivity: 5 megohms
110 db (FSN 5910-
Generator, Signal AN/
Frequency range: 20 cps
957-1800).
URM-127.
to 20 kc.
Multimeter, M#-26 (*)/U
Dc voltage range: 0 to
Output level: 3 watts
1,000 volts.
into 600 ohms.
Ac voltage range: 0
Oscilloscope AN/USM-
Frequency range: 0 to 15
to 300 volts.
140(*).
mc
Resistance range: 0
Generator Signal AN/
Frequency range: 2 to
to 500 megohns.
GRM-50.
30 mc.
Frequency range: 20
Output level: 0 to 3
cps to 700 mc.
volts
Output impedance-
50 ohms.
3-6. Special Tools Chart
Charger, Battery PP-
Voltage range: 20 to
1451/G.
32 bolts.
CA 58057 Extraction
5120-970-2722
Current range: 100
tool Cannon Electric
amperes maximum.
Co.
Preamplifier, HP 5261A
Frequency counter plug-
107-1001 Insert tool
in.
Winchester Inc.
Winchester Crimp and
Extraction tool.
Section II. REPAIRS
3-7. Cleaning
b. After disassembly, the mechanical components
can be cleaned with cleaning compound (FSN
a. The SM-442A/GRC should be kept clean and
7988959542). Clean switch contacts with a cloth lightly
free of foreign matter to insure proper operation.
moistened with an approved electrical contact cleaner.
Warnings:
3-8. Inspection
1. Compressed air in dangerous and
After cleaning, inspect the disassembled mechanical
can cause serious bodily harm. It
parts for the following:
can also cause mechanical damage
a. Parts that are nicked, burred, or scratched.
to the equipment.
Do not use
compressed air to dry parts where
cleaning compound has been used.
2. Prolonged breathing of cleaning
d. Bent or worn shafts.
compound is dangerous; make
certain that adequate ventilation is
f. Wires that have insulation burned or scraped
provided.
Cleaning compound in
off.
flammable; do not use near a flame.
g. Broken wafer switch.
Avoid contact with the skin; wash off
any that spills on your hands.
3-2
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