WINCH, RETRIEVER SYSTEM, OR CRANE JERKS WHEN OPERATED-continued

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

HYDRAULIC SYSTEM (CONT)

1. WINCH, RETRIEVER SYSTEM, OR CRANE JERKS WHEN OPERATED (CONT).

NOTE

The hydraulic pump and reservoir supply power and oil to the power steering, winches,

retriever, and crane systems. Refer to FO-3, Hydraulic Schematic. If there is a problem with

hydraulics, make the checks for symptoms 1 and 2, then go to the Troubleshooting

procedures for STEERING, WINCH, RETRIEVER, or CRANE systems.

Check oil level in reservoir and check reservoir for cracks or breaks.

Step 1.

Add oil as required (LO 9-2320-279-12). If reservoir is cracked or broken, replace res-

ervoir (para 13-12) (M984El: para 13-16).

Step 2.

Check for oil leaks (fig. l-14).

Tighten loose connections, replace damaged hoses.

Add oil as required (LO 9-2320-279-12).

Check hydraulic pump for leaks or damage at connections.

Step 3.

Tighten loose connections at hydraulic pump, replace damaged hoses.

Check if hydraulic oil is dirty, dark, or milky (contaminated).

Step 4.

If contaminated, service reservoir (LO 9-2320-279-12).

Replace oil return filter element (para 13-8) (M984El: para 13-13).

If problem has not been solved, notify the supervisor.

Step 5.

Change 3