ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
4-41. TIME DELAY RELAYS (TR1 AND TR2) - Continued
Figure 4-32. Time Delay Relays (TR1 and TR2)
High voltage is used in operation of this equipment DEATH ON CONTACT may result if
personnel fail to observe safety precautions
e. Connect input electrical power to unit
Set multlmeter to measure 120 Vac. Connect probes across terminals A and 1.
g. Set MODE SELECT switch to AUTO
h. Check voltage drop across terminals A and 1 Voltage indicated should be 114 to 126 Vac. After about
10 seconds, voltage should drop to less than two volts. Replace relay if found defective.
Set MODE SELECT switch to OFF
Repeat Steps f through i for terminals A and 3.
Disconnect input electrical power from unit.