I've run into this problem four times in the past two weeks, so I thought I'd mention it:

If the vision of your planter's seed monitor system suddenly is no longer 20/20 (hint, hint) and you have one section or the entire planter's seed tube sensors go off-line, be suspicious of a cut, crimped, pinched or damaged sensor wire to one of the row unit seed sensors.

Twice I found a seed tube sensor wire had been pinched by the parallel arms that support the planter unit. Once I found the sensor wires had been zip-tied to the cross-tube just ahead of the row unit's seed box, and as the unit was raised and lowered the sensor wire sawed back and forth between the zip-tie and the tube and eventually wore through the wire's insulation and shorted out. The fourth "blind" planter was due to one row's seed tube sensor wiring harness connector getting crushed in a down-pressure bracket.

In two of those situations, when the wires shorted the control box that gave the system 20/20 vision was damaged by the electrical mishap and had to be replaced. The other two times the control box survived, and simply splicing the damaged wires fixed the problem.

As always, these are one man's experiences, based upon four separate cases over a two-week period. Take it for what it's worth. If it helps diagnose a problem and gets you back to planting--cool!

 Cool news for some of you, related to my previous post about using cell phones/smart phones to take pictures of farm equipment to help identify parts needed for repairs.

Rodney S., one of our regular readers, let me know that there is a smart phone app called "Case IH My Shed" that allows red equipment owners to enter their equipment into the app so that when each piece of equipment is accessed, submenus with filters, decals, frames and factory-installed parts pops up. A pop-out menu provides exploded diagrams with detailed parts numbers. Kris says once you identify the part you need you can order it online, specify which dealer to send it to, or tap the screen and have the phone dial your local dealers to see if the part is in stock. Cool!

Rodney also mentioned an aspect of that app that I use frequently on the laptop I carry in my service truck. Many times when reassembling equipment, it's more understandable for me to reference a blown-up parts diagram to see how pieces are supposed to fit together than it is to use the "repair" manual for that machine. So, if you forget which side of the assembly a washer goes on, or whether a certain bolt should be head-in or head-out, this app gives you access to a blown-up diagram with answers to your reassembly questions.

Sadly, that's only if you're working on red equipment.  If any of you know of similar apps for equipment of other colors, let me know and I'll pass it on.

 I'm going to refine a suggestion I made a while back in one of my blogs. I suggested that it would be useful when repairing machinery to take a cell phone photo of the part in question, so you could show it to the person at the parts counter.

That has created problems. Some folks assume that a photo is worth a thousand words, and now simply hand their cell phone to the parts person and say, 'Gimme that part." 

To help maintain the sanity of parts people across the country:

-The first photo should be of the machine's model number. The second photo should be a close-up of the serial number plate, with serial numbers clearly legible. 

-Then take a series of photos, starting at a distance before ending with a close-up of the part in question. That will help the parts person identify where on the machine the part is located. 

-Take time to look at the piece in question. Understand what it does on the machine, decipher how it is broken or why it isn't working correctly. There is an disturbing trend for folks to just take a cell phone photo and then hand their phone to the parts person at the local dealership with the assumption that everything the parts person needs is in that one, tiny 2-inch by 3-inch digitized photo. 

Cell phone photos can be an immense aid in helping get the right parts efficiently. Or, they can make things worse because the person with the cell phone photo has no information aside from that one photo to help the parts person get the right parts.

If you're technologically sophisticated, figure out how to use your smart phone or iPad to access the internet, look up a parts diagram of the machine you're working on, and point to the specific part you need on that image. It will have the specific part number right there, and all the parts person has to do is type in the number to see if they have it in stock.

Be forewarned: providing a parts person the exact parts number of a piece that you want risks having that person come over the counter and give you a kiss of gratitude.

 I'm not especially comfortable speaking in front of crowds, but wouldn't be ashamed to hand out printed cards with the following advice to this year's graduating class. Some of the advice is related to fixing mechanical things, some of the advice is about life in general, and some of it could go either way.

-"Economical" and "cheap" are not the same when it comes to buying tools.

-If a hydraulic leak stops, it's not because the leak magically fixed itself and everything is now "okay." It's because the reservoir ran out of oil.

-In the mind of a customer, one botched repair erases the memories of 25 successful repairs.

-Smoke from electrical wiring or electrical components is never a good thing.

-The wrench you lose or break this morning is the one you'll need this afternoon.

-Never look at your thumb while swinging a hammer.

-"Fixed" and "fixed right" are not always the same thing.

-Promise less than you deliver. Deliver more than you promise.

-Righty-tighty, lefty-loosey.

-If you have to borrow a specific tool more than four times in a year, buy your own.

-When working on large equipment, never work under anyone who chews tobacco.

-Understand the difference between working for a friend and working with a friend.

-There is a difference between a job, a career and a hobby. Understand why you do each and don't mistake one for the other.

-Don't expect to toot the whistle if you were hired to shovel coal.

-You can always re-do repairs because machinery doesn't remember. It doesn't work that way with family members, spouses, friends, bosses and customers. 

-If you're the one who toots the whistle, remember that somewhere, somebody is shoveling coal to allow you to do that.

-Never say "never." Unless it's in regard to ethical or moral questions, and then have personal standards about when to say it.  

 Some might think I'm morbid, the way I religiously read the obituaries in our local daily newspaper each evening. I learned the hard way that it pays to know what's going on in our rural community.

A decade or more ago, I went to a customer's farm to do some work on his planter. His farmstead was always a showplace, and part of any visit there during warm weather included a nod and a wave to his wife, who always seemed to be working in their large, immaculate garden. As the farmer and I worked on the machine, just to be social and friendly, I commented on the nice spring weather and said, "It won't be long before your wife will be back out in her garden..."

He stopped and turned away from me, took a deep breath, and said, "Not this spring. She got cancer last winter and died six week ago."

So now I not only routinely read the obituaries, I regularly compare notes with other mechanics and our salesmen, just to stay abreast of who died, who got divorced and other potentially sensitive topics. Sometimes knowing how to fix machinery is only part of what a farm mechanic needs to know to serve his customers well.