TM 5-5420-209-12
Table 4-4. Unit Troubleshooting. - Continued
Malfunction
Test Inspection
Corrective Action
5.
CABLE TENSIONER INOPERATIVE, (MODEL RBT) - Continued
step 3.
Test cable tensioner for internal damage.
a.
Disconnect hose attaching to (Cl) on cable tensioner valve, momentarily position control
valve to WINCH OUT, and check for oil flow.
b.
If oil flow was present, replace cable tensioner.
6.
CABLE TENSIONER CONTROL VALVE INOPERATIVE, (MODEL RBT)
WARNING
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray out
due to residual pressure in system.
Step 1.
Disconnect line attaching to (VI) on cable tensioner valve, momentarily position control valve
to WINCH OUT, and check for oil flow.
Step 2.
If oil flows from line, replace cable tensioner valve.
7.
LOCKING CYLINDER INOPERATIVE
WARNING
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray out
due to residual pressure in system.
Step 1.
Inspect hydraulic lines and hoses for external damage.
Replace tubes or hoses that are dented, pinched, crimped, or ruptured.
Step 2.
Check pin and arm for binding and ensure that quick release pin is not preventing operation.
Replace damaged parts.
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