Series Parallel Switch Rebuildable?

[slspacek]

Does any body out there know if parts are available to rebuild a series parallel switch? Mine is in a 1966 C-95 fire engine. It has three black sections with battery size connections on the first and third sections. The coil portion seems to work fine but the contact points are shot. I have tracked down a new one to the tune of $164.00, but the guy that sells it said they used to rebuild them ( not much demand anymore, I guess). I am going to check with a starter/alternator shop in my area on tuesday. Just curious if anyone new of a place to purchase rebuild parts.

Thanks.

Sean

[Tony Ingram]

Throw it away and swap it over to a 12 volt set up, much easier and less headache. That's what I did anyway.

[Mike]

Watts Mack Sales on this site sells them. As stated, most people will go 12 volt and do away with the old setup. If you go to the web-site of oldmacksrus.com you can find a wiring diagram if you follow the link. It shows the 24 volt setup for your application if you choose to stay with what you have.

Good Luck

mike

[vanscottbuilders]

Sean,

Tony is absolutely right - eliminate the series parallel switch and convert to a full 12 volt system.

But - if you need - I have seveal series parallel switches that were working when removed. Let me know here on BMT by Personal Message.

Paul Van Scott

[theakerstwo]

There was two styles of S/P switches and have not seen one like you have in years. This is used i think only by mack and it is the one which has the magnectic switch built in the switch and does not use a senold on the starter. Later years they went to the smaller switch which used a senoild on top of the starter.It only had two section in the s/p switch.You switch is call a s/p switch magnectic combination.