The winch shown in the illustration operates in any of the positions with the master switch in the 'lower' direction, but will not 'hoist' in any of the master switch hoist speed positions. Which of the listed faults could be the cause? EL-0102

Correct Answer: Option C — Master switch contact 'MS 4' may have defective springs.

Master switch contactors route specific control logic for hoisting and lowering operations. When a winch lowers normally but refuses to hoist in any speed position, the specific master switch contact responsible for the hoist control circuit has defective springs or contacts.