I was wondering if anyone had a wiring schematic of the heat seat switch on cat skid steers. My switch is missing and i was wondering what the 3 wires go to in order to see if I can replace the switch with a normal toggle or have to pay the $45 for a cat one. I have a red, yellow, and black wire on spade connectors where the switch used to be.
Supply a Serial Number please, to identify the correct schematic.
By the sounds of that someone has been butchering the wiring. There should be a 3-pin Deutsch connector on the wiring harness that makes the switch a simple plug & play. EDIT: Acksherley it's apparently a 4-pin connector and there should be two switches, at least according to the schematic I pulled up at random for a 272D. Maybe the 392-2977 is for the seat with air/heat and the 293-2871 is for the non-heated air seat.
Serial number is B5W00526. I know what the part number is, but cat dealer wants $45 for a basic switch. The 3 wires I have were on an angled spade type connector on the back of the old switch when I pulled it out. I think the duestch connector is farther up the harness not right at the switch. I will try and post pics next time I am at the machine.
It looks to me from the schematic that the switch was a basic toggle. My guess is that it had a ground wire for a light to show it was on.
It appears as though the Cat switch has 3 terminals on the back. Illustration is not the best. I wonder if the OEM switch is spring-loaded to neutral on one side (for the air compressor) and toggle to the other side for the heat.?
That snip I posted above is from a schematic valid for all B5W-prefix machines.
293-2871 is the occupant detector switch.
Gotcha. With that complete section of the schematic being listed as an attachment it didn't cross my mind. Isn't the operator presence switch standard.?
Thanks for the help everyone. I hooked up my multimeter and it appears to be a basic switch with geound for status led. Black was ground, red switched power and my guess yellow goes on to the heat coils in the seat. So I think I can just get a regular switch and dont have to order a special one from cat.