Brakes lights on

[simonsenrick]

Anyone out there have a diagram or picture of what the brake light switch installation should look like for a 1996 Pace Arrow Vision 35, Ford 460 frame? I had my brake lights stay on all night at a couple of stops and finally had to take out the fuse! I have a new switch on order, but am unsure of how it should be installed. If I look at how the old one was installed, it just doesn't make any sense! The end of the shaft that goes to the master cylinder has a hole in it that connects to the brake pedal lever and it has rounded sides, with a flat top - the old switch was mounted with the switch contacting one of the rounded sides? It seems to me like it would make more sense to be on the flat top, but it also seems like it is very tight to get into that position, but maybe that is how it is supposed to be? Any pictures or drawings or any other ideas would be very helpful!

I saw this picture on the site, and it kind of looks like mine, but on mine the brake shaft is almost vertical and there is a link arm from the brake pedal that attaches everything together with the big pin. http://i54.photobucket.com/albums/g9...rakeLampSw.jpg

[subford]

This is about all I have on it in the image below.
But the switch itself works just like it does on any F-series truck.
#26 is the switch.





Stoplight Switch

The electromechanical stoplight switch, installed on the pin of the brake pedal arm, straddles the push rod of the power brake booster (2005) but is not attached directly to the push rod. The F-Series motorhome uses a pushpin style stoplight switch. The stoplight switch is located near the brake pedal arm. The stoplight switch moves with the pedal arm when the brake pedal (2455) is depressed.

The stoplight switch actuating pin is held by spring pressure against the rear end of the power brake booster. Because of the slight clearance between the eye of the push rod of the power brake booster and the brake pedal arm pin, the pin and the stoplight switch move forward slightly before the push rod moves when the brake pedal is depressed. This relative movement between the stoplight switch and the end of the push rod moves the actuating pin rearward in the stoplight switch, closing contacts on the stoplight switch completing the circuit to the rear lamps (13405).

When the brake pedal is released, the stoplight switch moves rearward in relation to the push rod. The spring in the stoplight switch returns the actuating pin to its normal position, opening contacts on stoplight switch and interrupting the circuit to the rear lamps.


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[simonsenrick]

Thanks! I just joined this forum and already I am impressed! This will be a great resource for guys like me who like to fix things on their own, but might not have all the details! Great job!