With one probe still at P3 contact A, touch second probe to connector housing Multimeter should
indicate no continuity.
Repeat steps d through f for each remaining wire In cable Refer to figure 4-7 for correct ongoing
and destination of each wire
If an open or short is detected in cable, replace cable (paragraph 4-22) or notify higher level of
Figure 4-7. P3 Power/Control Cable Wiring Diagram.
P3 Power/Control Cable Replacement. (See figure 4-8).
Disconnect P3 connector (1, figure 4-8) from J3 connector on adapter plate assembly (2).
Release latch and open cover (3) on PDU.
Disconnect P3 cable wires from terminal board TB1 (4) contacts 1, 13, 16 and 17, and from
ground stud E1 (5).
Remove two screws (6), two washers (7) and K1 contactor cover (8). Tag and disconnect P3
cable wires from K1 contactor (9).
Loosen locknuts (10) on inside and outside of PDU housing (11) and pull cable out of housing.
Remove EMI gasket (12).
Disconnect EMI sealing grip gland nut (13) from sealing grip interconnector (14), and slide
gland nut above cable grip (15).
Collapse cable grip (15) and slide cable grip away from interconnector (14). Slide gland
washer (16) and rubber bushing (17) away from interconnector.