Routemaster brake pedal switch

[Davo]

Hi Everyone

Help needed please!

Is there supposed to be a gap between the two contacts on the brake pedal switch?

Thanks

[Taffy]

Yes, the switch will close when the pedal is pressed.  I would recommend placing some insulation tape between the metal floor plate and the switch though

[Giddykippa]

15 hours ago, Taffy said:

Yes, the switch will close when the pedal is pressed.  I would recommend placing some insulation tape between the metal floor plate and the switch though

does the circuit short without the tape Taffy ?

[Taffy]

I suspect it may cause issues.  I think i seen the tape being added in the last video you uploaded regarding the cab

[Giddykippa]

32 minutes ago, Taffy said:

I suspect it may cause issues.  I think i seen the tape being added in the last video you uploaded regarding the cab

yeah it's on the "back to 1985"  channel i saw him add the tape but he doesn't say why he did it i assumed it was to lift the switch up slightly so the end of the pedal made contact, when i read your comment i was intrigued to know what your reason was, i thought you also had built the model earlier and the tape was necessary due to some reason i didn't know lol

[Taffy]

Coming from an electrical background, it's not good practice to have a metal switch in contact with a metal backing.  In this case it's low voltage, so no shock, however, it could have the potential to run the batteries flat quicker then they should.  Whilst the metal floor is painted, it could rub away as the switch is operated.

Just a precaution really, as I say not harmful effects.

[Taffy]

Sellotape could be used if you do not have insulation tape.

[Giddykippa]

51 minutes ago, Taffy said:

Coming from an electrical background, it's not good practice to have a metal switch in contact with a metal backing.  In this case it's low voltage, so no shock, however, it could have the potential to run the batteries flat quicker then they should.  Whilst the metal floor is painted, it could rub away as the switch is operated.

Just a precaution really, as I say not harmful effects.

Good point thanks 🙂