ON-BOARD RELAY BOX WIRING DETAILS
Purchased from Eletronic Goldmine
www.goldmine-elec.com
Below left is a picture of the original relay box ready to be entombed in wax.
It was not an easy task, but I tested all operations
and everything work just fine.
So I felt pretty confident and begun pouring the wax.
In retrospect, using wax was not such a bad
idea, when it came time a relay fail, I was actually able to remove the wax from that area and perform the repairs. If I would have
used epoxy, the entire box would have to be scrapped.
You can click on any picture to enlarge
I originally used the 'H' type dual coil relays from Goldmine Elec.. These relays are meant to be mounted on PC boards and were an
absolute challenge to solder the big wires to them. I knew it was not the right way, but I had to give it a try.
Well, they worked
fine for a while, but my sloppy wiring failed horribly.
At left are the some of the original info I had posted.
This is my second generation relay box. Found this plastic project box in my junk pile and I got to work.
I layed out the relays
and cut the plastic box in half.
The big change are the type of relays that I'm using now, they are Bosh automovive SPDT, 25 amp contacts
and 12v coils, two are going to be used for each motor and one for the lights. I wired each pair to duplicate an 'H' type relay.
Soldering
wires to these babies is a much easier endevor.
If you click on the photos you can see how much neater it looks.
These are the relays I got from PARTS EXPRESS at $1.60 each
This how to wire them for Fwrd and Rev operation.
I like this new layout because it looks much neater that the mini relays. I just have to figure out how to seal them to avoid wax
from sipping inside ot them. (?)
