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09-03-2020, 07:11 AM | #1 |
Junior Member
Join Date: Oct 2019
Posts: 12
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wiper switch 39 truck
how does the wiper switch work i have not seen one together nor seen one work looks like all it is an arm that moves side to side but what is it moving to turn on wipers
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09-03-2020, 09:30 AM | #2 |
Senior Member
Join Date: May 2010
Location: Napa,California
Posts: 6,028
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Re: wiper switch 39 truck
There should be a knob on the dash with a small rod that connects the knob to the arm on the wiper.
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09-03-2020, 09:37 AM | #3 |
Senior Member
Join Date: May 2010
Location: Beaver Dam, Wisconsin
Posts: 821
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Re: wiper switch 39 truck
Not dash, up above windshield. One is a pull/push to turn on, other rotates to control speed. Can post pics later today if needed.
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09-03-2020, 08:22 PM | #4 |
Senior Member
Join Date: May 2010
Location: Napa,California
Posts: 6,028
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Re: wiper switch 39 truck
Sorry, I was thinking '40 pickup. The push pull switch allows vacuum from the engine to operate the wiper. The other is the speed control switch. There's a flapper inside the wiper motor that is pulled back and forth by the vacuum. The flapper is attached to the main shaft and the wiper arm is attached to that shaft.
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09-03-2020, 08:25 PM | #5 |
Junior Member
Join Date: Oct 2019
Posts: 12
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Re: wiper switch 39 truck
what is it pushing,
a part on wiper motor or vacuum hose |
09-03-2020, 08:29 PM | #6 |
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Join Date: Oct 2019
Posts: 12
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Re: wiper switch 39 truck
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09-04-2020, 10:47 AM | #7 |
Senior Member
Join Date: Apr 2014
Location: Minnesota
Posts: 1,165
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Re: wiper switch 39 truck
Heres a photo of the one that was in my truck.
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