|
| |
TM 9-4120-389-14
a.
Inspection
(1)
Check for loose wire connections.
(2)
Check for cracks, evidence of overheating, and other visible damage. Replace if damaged.
b.
Test
(1)
Using a multimeter set on lowest OHMS scale, check continuity.
Terminal 1(+) to 2(-)
- Continuity should not be indicated
Terminal 3 to 4
- Continuity should be 432K OHMS + 5%
(2)
Set multimeter at appropriate voltage scale to measure 32 volts ac.
(3)
Replace time delay relay if it fails any of the above tests.
c.
Removal
(1)
Tag and disconnect wire leads.
(2)
Remove screw, flat washer and selflocking nut from time delay relay.
(3)
Remove relay.
d.
Installation
(1)
Align antirotation pin and mounting hole on time delay with holes in junction box.
(2)
Secure relay to junction box with screw, flat washer and selflocking nut.
(3)
See tags and wiring diagram (FO-1) and connect leads.
(4)
Remove tags.
Follow-on procedure:
Install junction box (See para. 4-46).
4-153
|
