3 cylinder tach

Won't it be 1/2 the speed? There will only be 3 pulses in a revolution instead of 6, correct?

JW

Reply to
jw
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karl, I have a favorite boneyard for industrial machinery near by. He has several. I will look if you like. He is inexpensive, but the cost will be the drive, as you will have to make that. Most of his will be 2-1, as they are meant for diesels. They will accept the standard square drive cable. I would guess his price will be around $30. Steve

Reply to
Steve Lusardi

I just hold everything constant. 4rth gear, 1200 RPM, 32 PSI gives 44 gal per acre on one sprayer. The air blast at the same settings gives 85 gal per acre. I then put in 1/2 the acre label amount in that much water. That much reduction don't work for herbicides

I have acreage marked off and double check that everything is running right. The goal here is to make the 2000 run just like the 3600.

Karl

Reply to
Karl Townsend

Nice stuff but too much $. I have three sprayers and three tractors. Any unit can mount anyplace.

Karl

Reply to
Karl Townsend

On the back of the alternator tachs I've used there is a hole under a plastic cover. Inside the hole is a row of dip switches. You figure out the pulley sizes, number of lobes on the alternator rotor, square root of pi and the phase of the moon. Plug it all into a formula and determine the proper dip switch settings. Well--maybe not all THAT complicated, can't be too bad if I can figure it out!

Bill

Reply to
BillM

Simple. You tell it. There is a calculation/table and dip switches on most.

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Reply to
clare at snyder dot ontario do

Seems like you would just double all the numbers on a 6 unit used on a 3 cylinder.

Mart> Any of the inductively coupled tachs will work fine. They couple off of

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Reply to
Martin H. Eastburn

Makes sense. I will have to check the next time I have one out. I have several running around, but never took the time to figure that out. They always seemed "right" so I just left them alone.

JW

Reply to
jw

OK.

I have a Spray Systems monitor on our sprayer. Really the only thing I use it for is an accurate speedometer. It has a magnetic pickup on the axle. It's the really cheap model. It was about $200.

The rest is formulaic. X pressure, at X mix ratio will be so many units/acre at X speed.

It would probably be pretty easy to move the unit between multiple machines if one had the need. (I don't). Just add pickup on each machine and just move the monitor. Or move the pickup and sensor between them too. But the sensor is so cheap, that having one on each wouldn't be much and would be a lot easier.

JW

Reply to
jw

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