Figure 2-9. Remote Controller Electrical Schematic (M977, M985, M984E1).

9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

MATERIAL HANDLING CRANE (M977, M985, M984E1) (CONT)

10. REMOTE CONTROLLER WILL NOT OPERATE CRANE OR OPERATES ABNORMALLY

(CONT).

If meter shows infinite ohms in one control function, check for broken wires in

controller (para 17-23). Repair broken wires (figs. 2-9 and 2-10).

If problem remains, replace defective controller (para 17-23).

Figure 2-9. Remote Controller Electrical Schematic (M977, M985, M984E1).

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