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My Wireless Fertilizer Spreader

PaintDog1

Member
Joined
Aug 10, 2014
Messages
13
Location
South Lyon, MI
Hi Garage Journal devotes. This is my very first posting...I needed a small project to figure out the IT side of this posting thing. My wireless conversion of the fertilizer spreader was the perfect first post. I promise I'll post my garage build next once I organize my photos and figure out a snappy tittle for it. Well here goes...

It was a Father’s Day gift from three years ago, a fertilizer spreader built to be pulled behind a small garden tractor. I have a little less than an acre of grass that I care for, and it sure beat walking the yard pushing the old one. It’s gotten its fair share of use over the years, but it suffered from one major design flaw. The control lever was mounted on an upright tube that was located just within my reach. Thus, turning the damn thing on and off was literally a pain in the back! I decided I'd had enough. It was time to automate the fertilizer spreader!

My inspiration came after helping my neighbor upgrade his door locks on his ’52 Ford pickup. A quick search on Amazon, $50 and two days later, my wireless door lock kit arrived. It consisted of a wireless receiver/controller, two lock actuators, and two wireless key fobs.

After too much trial and error, I found that the included connector rods just wouldn't do. They didn't have any "give" in them to account for when the actuator solenoids pulled back slightly from their extreme positions. To work properly, the outlets had to be completely open or closed, not half open. Once light cables wires with a little play were substituted for the rods, and a little adjustment, my “dream” spreader was now a reality! The trailer wiring harness and connector provided a convenient way to quickly disconnect the wiring when the spreader isn't in use. Here're some photos:
 

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PaintDog1

Member
Joined
Aug 10, 2014
Messages
13
Location
South Lyon, MI
Hey '53mecury,

No problem. First, here's a link to where I picked up the Avital kit: https://www.amazon.com/gp/product/B002FYEG8Q/?tag=atomicindus08-20.

Wiring is simple: Connect the Red (H1/1), Violet (H1/9), and Violet/Black (H1/7) to a 12vdc source on your tractor. I picked up one off my key switch that is powered when the key is in the Run position. Connect the Black wire (H1/11) to chassis ground. Each actuator has two wires, connect both Green wires to chassis ground. Finally, connect the Green/Black wire (H1/5) to the blue wire of the actuator that will be used to close the spreader opening, and similarly, connect the Blue/Black wire (H1/8) to the Blue wire of the Open actuator.

I re-purposed and cut the original mechanical control cable housing in two, shorter, sections. Then replace the stiff inner wire with 1/16" twisted (flexible) wire. Position the two actuators such that on pulls the outlet door closed, and the other open (See original photos).
 
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StealthM8

Active member
Joined
Nov 9, 2008
Messages
28
Location
Mesa AZ
Yep, good eye! It's a 1997, belonged to my dad. Now used to plow snow and pull stuff around. I use an Exmark ZT for grass duty.


Sent from my iPad using Tapatalk

Tonight the new owner hauled away my 345 after 17 years of faithful service.

Nice job on the electronic fertilizer mod!
 

RPH

Well-known member
Joined
Dec 17, 2006
Messages
4,190
Location
Michigan Thumb
Nice job. Here is a picture of my "wireless" fertilizer spreader.
 

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