WINDSHIELD WIPER

Electric Windshield Wipers Are Used On All Models

A single speed wiper is used as standard equipment while a two-speed unit is offered optionally.

The wiper motor is mounted in the engine compartment with a drive shaft extending up thru the lower plenum chamber panel (Fig. 14.) The chamber, and an idler lever changes the motion on the right and side so that the blades synchronize.

The wiper arms and blades are the same on all models. The windshield wiper transmissions used on the 37, 39 and 67 models are identified by the cast letters 1R or 1L on the transmission body. All other styles use the transmissions that are identified by 2R or 2L.

Single-Speed Wiper Motor

The single speed windshield wiper motor is shunt wound and provides approximately 100 wipes per minute.

This wiper design does not provide depressed parking of the windshield wiper blades. When the switch is turned off, the motor continues to run until the blades reach the inboard limit of the wipe arc. Parking of blades near the windshield reveal moulding if desired, would have to be done by repositioning the wiper arms, thereby decreasing blade outboard travel.

An automatic reset type circuit breaker located internally on the motor brush plate protects the motor windings from overheating. End-play adjustment is provided for the motor armature and drive gear shaft. The motor mounts are located the same on both the single-speed and the two-speed wiper, making the wiper assemblies physically interchangeable, providing the proper switch is used with each unit.

Windshield Washer Operation

A centrifugal type washer, used in conjunction with the single speed wiper, consists of a small permanent magnet type motor mounted on the plastic washer bottle cover, a centrifugal type pump located in a sealed reservoir, a pressure switch and washer bottle (See Figure 15.)

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