TM 5-5420-209-34
3-5. General Support Troubleshooting Procedures. Table 3-1 lists the common malfunctions
that may be found during operation. Refer to symptom index to locate the troubleshooting procedures for the
malfunction. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not corrected by listed corrective actions, notify your supervisor.
SYMPTOM INDEX
Symptom
Page
Boom Cylinder Assembly Inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Locking Cylinder Inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Selector Valve Inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Ramp Bay Bow Pontons Leaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Ramp Bay Roadway Pontons Leaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Hydraulic Cylinder and Piston Inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Interior Bay Bow Pontons Leaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
interior Bay Roadway Pontons Leaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Table 3-1. General Support Troubleshooting Procedures.
Malfunction
Test or Inspection
Corrective Action
1.
2.
3.
4.
BOOM CYLINDER ASSEMBLY INOPERATIVE.
Test for evidence of internal damage.
Repair damaged cylinder (para. 3-7)
LOCKING CYLINDER INOPERATIVE.
Test for evidence of intenal damage.
Repair damaged cylinder (para.3-8)
SELECTOR VALVE INOPERATIVE.
Test for valve malfunction.
Repair selector valve (para.3-9)
RAMP BAY BOW PONTONS LEAKING.
Inspect for structural damage, cracks, broken welds or holes through skin.
Repair bow pontons (para. 3-11 ).
3-2
