Analog Tachometer in an 82 series cub
 

I wanted to pass along my method of adding an analog tachometer to my 682. There are some Wheel Horse posts on connecting a tachometer to the alternator so I thought I would try it and it worked!

I purchased an Apex Tachometer from ebay:

http://www.ebay.com/itm/Electronic-C...72.m2749.l2649

Dip switches get set for alternator, 8 pulses / revolution.

I attached the signal wire to the right side of the tractor voltage regulator + lead. Power came from the hour meter power and grounded to the steering frame. Checked motor RPM with hand held tach and I am within a few rpm. Fit right into the hole for the hour meter. I moved my hour meter to the tunnel cover since the plug would reach and I don't need to monitor that constantly.

Hope this helps someone else try it.

I have wondered if you could run an alternator tach. Good to know it works! :beerchug:



Thanks for the post!

Thanks for the information and write up. Since the Quietline Series of tractors use the same Stator and V/R, I assuming it would work the same.

:IH Trusted Hand:

Cool! Great writeup!:beerchug:

How long did shipping from India take?

The tachometer only took a few days to get to Northern OH from India. Much faster than the auction said. I had to email the seller to get the dip switch settings sheet.

Thanks for the write up! Looks great! :beerchug:

Very neat and easy tach solution! Thanks for sharing with us!:beerchug::beerchug:

Cool set up :beerchug:

Thanks Harvester, I just ordered one to see if it will work on my 982. I'll let you all know how long it takes to get here.

since reading this write up I shall be ordering one as well for my 1650 and any other tractor that uses that alternator. I really appreciate the write up. :beerchug:

Yep they do! Mine is running on my 1650 since December 2015...

I ordered mine on 08/27/17 and FedEx delivered it today. 12 days and $44.00 to my door, not too shabby. I'll get some pics and update how it works in my 982.

Ordered mine last week when i posted. still have yet to see it. Any chance you know what to set the dip switches to? I wonder if you can set them to run off of starter gen engines using the coil. similar to how Kirk Engines tachs work.

When the magnet aligns with the coil, you get 1 positive pulse, although it took 2 magnetic poles to do it, those engines produced 9 pulses per rotation of the flywheel, I just wish the internal potentiometer give you enough range to compensate for the missing pulse.

It was not the case with my 1650 tachometer but I already knew that and after I take a good look at the diagram I substitute one resistor
for a 10 turn 1/4W potentiometer, now it's accurate but who really need a RPM on a garden tractor? For what purpose? For me it's was just a fun totally useless project but it may look cool on my walk behind snow blower.:bigthink:

A simple rule...Keep the gauges and diagnostic tools on the bench or in the toolbox. For mowing and snow blowing a good beer holder is all you need :biggrin2: