TM 5-5420-280-10
0038 00
Pallet Electrical Troubleshooting (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
20. RCU WILL NOT DEPLOY BRIDGE ACROSS GAP (L16-H)
Step 1. Check that KY1, KY6, and KY24 hydraulic control valve solenoid
LED lights are lit when action button 1 is depressed.
If all lights are lit on control valve solenoids, notify field
maintenance.
Step 2. Check to see if one or more control valve solenoid LED lights are out
when action button 1 is depressed.
If light is out, notify field maintenance.
END OF TESTING
21. RCU WILL NOT LOWER FAR-SHORE END OF BRIDGE (L17-A)
Step 1. Check that KY1, KY16, KY18, and KY24 hydraulic control valve
solenoid LED lights are lit when action button 1 is depressed.
a. If lights are lit on KY1, KY16, KY18, and KY24 control valve
solenoids, notify field maintenance.
b. If all lights are lit on control valve solenoids, notify field
maintenance.
Step 2. Check to see if one or more control valve solenoid LED lights are out
when action button 1 is depressed.
If light is out, notify field maintenance.
END OF TESTING
22. RCU WILL NOT LOWER NEAR-SHORE END OF BRIDGE (L18-H)
D3, and AD4 into receptacles. Refer to WP 0007 00.
END OF TESTING
23. RCU WILL NOT RAISE LAUNCH BOOM TO TRAVEL POSITION (L20-H)
Step 1. Check that KY1 and KY19 hydraulic control valve solenoid LED
lights are lit when action button 1 is depressed.
If both lights are lit on control valve solenoids, notify field
maintenance.
Step 2. Check to see if one or more control valve solenoid LED lights are out
when action button 1 is depressed.
If light is out, notify field maintenance.
END OF TESTING
