TM 5-5420-209-12Table 4-4. Unit Troubleshooting. - ContinuedMalfunctionTest InspectionCorrective Action5.CABLE TENSIONER INOPERATIVE, (MODEL RBT) - Continuedstep 3.Test cable tensioner for internal damage.a.Disconnect hose attaching to (Cl) on cable tensioner valve, momentarily position controlvalve 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)WARNINGWhen disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray outdue to residual pressure in system.Step 1.Disconnect line attaching to (VI) on cable tensioner valve, momentarily position control valveto WINCH OUT, and check for oil flow.Step 2.If oil flows from line, replace cable tensioner valve.7.LOCKING CYLINDER INOPERATIVEWARNINGWhen disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray outdue 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.4-30
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