Windshield Wipers - 2-Speed Electric: Description

A compound wound 2-speed motor which may be either a plate actuated type or cam actuated type. A worm gear on armature shaft drives a fiber gear which actuates wiper arm linkage. System uses a three position switch which allows selection of off, low or high speed operation. A fuse or circuit breaker protects against system overloading. When system is operated at low speed, a resistor is shorted out and motor receives full shunt field. When system is operated at high speed, resistor is inserted in shunt field circuit.