TM 5-5420-280-10
0038 00
Pallet Electrical Troubleshooting (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
47. RCU WILL NOT RAISE SUPPORTING CYLINDERS (R19-H)
NOTE
KY1 and KY9 control valve solenoids raise left
supporting cylinder, and KY1 and KY11 control valve
solenoids raise right supporting cylinder.
Step 1. Check that KY1 and either KY9 or KY11 hydraulic control valve
solenoid LED lights are lit when action button 1 or 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
48.
RCU WILL NOT RETRACT BRIDGE TO TRAVEL POSITION (R21-H)
Step 1. Check that both sides of bridge slide lock mechanism are unlocked
or damaged.
a. If slide lock mechanism is locked, unlock slide lock mechanism on
both sides. Refer to WP 0008 00.
b. If bridge slide lock is damaged, notify field maintenance.
Step 2. Check that KY1 and KY12 hydraulic control valve solenoid LED
lights are lit when action button 2 is depressed.
If lights are lit on control valve solenoids, notify field maintenance.
Step 3. 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
END OF WORK PACKAGE
