TM 55-1680-320-23 & P
2-7. OPERATIONAL PERFORMANCE CHECK (cont)
2-7
f. Winch Temperature Sensor.
(1) Disconnect connector J6 from control panel.
(2) Check for continuity between pins E and F of connector J6
g. Control Pendant BOOM IN/OUT Switch.
(1) Disconnect connector from control pendant.
(2) Position the BOOM IN/OUT switch to OUT and check for continuity between pins A and B of pendant
connector.
(3) Position the BOOM IN/OUT switch to IN and check for continuity between pins A and C of pendant connector.
h. Up Limit Switch.
(1) Disconnect connector J6 from control panel. Ensure hook is not against boom head actautor.
(2) Check for continuity between pins A and B of connector J6,
i. Hoist Input Power.
(1) Disconnect connector J1 from control panel.
(2) Check for 28 vdc between pins A, C and J and B(-) of connector J1.
(3) Check for 28 vdc between pins G, C and S and B(-) of connector J1.
j. Control Pendant CABLE UP/DOWN Switch
(1) Disconnect connector from control pendant.
(2) Position the CABLE UP/DOWN switch to DOWN and check for continuity between pins A and G of pendant
connector.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
2-13
(3) Position the CABLE UP/DOWN switch to UP and check for continuity between pins |A and F of pendant
connector.
