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RCU WILL NOT RAISE FAR-SHORE END OF BRIDGE WITH LAUNCH BOOM (R6-A) - TM-5-5420-280-100363
RCU WILL NOT LIFT LAUNCH BOOM (R11-A)

TM-5-5420-280-10 Rapidly Emplaced Bridge (REB) NSN: 5420-01-481-3959 Manual
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TM 5-5420-280-10
0038 00
Pallet Electrical Troubleshooting (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
35. RCU WILL NOT LIFT LAUNCH BOOM INTO COUPLING POSITION (R9-A)
Step 1. Check that KY1 and KY16 hydraulic control valve solenoid LED
lights are lit when action button 2 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 2 is depressed.
If light is out, notify field maintenance.
END OF TESTING
36. RCU WILL NOT LOWER LAUNCH BOOM TO PRE-COUPLING POSITION (R9-A)
Step 1. Check that KY1 and KY16 hydraulic control valve solenoid LED
lights are lit when action button 2 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 2 is depressed.
If light is out, notify field maintenance.
END OF TESTING
37. RCU WILL NOT RAISE SECONDARY BOOM (R14-H)
Step 1. Check that KY1 and KY14 hydraulic control valve solenoid LED
lights are lit when action button 2 is depressed.
a. If all lights are lit on control valve solenoids, check limit switch
KA6 for damage or out of adjustment. If damaged or out of
adjustment, notify field maintenance.
b. If limit switch KA6 is operating and control valve solenoid LED
lights are lit, notify field maintenance.
Step 2. Check to see if one or more control valve solenoid LED lights are out
when action button 2 is depressed.
If light is out, notify field maintenance.
END OF TESTING
0038 00-16






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