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Old 03-13-2019, 10:33 PM
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Ironman Ironman is offline
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Default Strange job

I was brought a straw chopper/fan hub driven by a hydraulic motor, and the keyway in the hub was wallowed out to better than 1/4". Kind of bullshit setup anyway with a .981 shaft on a Parker orbital motor, and a 3/8 keyway, stepped to 1/8" in the hub.
For some reason, although I took pictures of it, they have left the building. It was green colored....and had a protruding stub shaft, 25mm x 4" going into a 2" hub that had a 6" drum welded to it with a spider. The hydraulic motor was mounted in a tube that fit inside the 6" drum and the motor shaft fit into a blind keyed hole in the 2" round part.
So I figured to chuck it into the lathe and grab it by the 25mm stub, bore it out to 1.75" and machine a collar to fit. As this thing is about 12", it almost rotated but hit the ways and needed another 1/4" of room. I farmed out the hub and got to it with the rest. When I get the hub bored out I will drill 3/4" holes in the drum so I can stick a rod through the hole and plug weld the new collar into the bored out hub.

Today I got a call from the big lathe operator. The stub shaft is significantly bent in relationship to the hub. I called the customer and now he tells me that last fall, some parts broke off inside the combine and the straw blower ate it. That would make sense. Not worth the repair so he will have to get the green one. I have cut a key in the backside of the motor shaft, but that will not interfere with the stepped key they have at JD.
I may have to eat this, I'll think about it.
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  #2  
Old 03-13-2019, 11:32 PM
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MetalWolf MetalWolf is offline
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Quote:
Originally Posted by Ironman View Post
I was brought a straw chopper/fan hub driven by a hydraulic motor, and the keyway in the hub was wallowed out to better than 1/4". Kind of bullshit setup anyway with a .981 shaft on a Parker orbital motor, and a 3/8 keyway, stepped to 1/8" in the hub.
For some reason, although I took pictures of it, they have left the building. It was green colored....and had a protruding stub shaft, 25mm x 4" going into a 2" hub that had a 6" drum welded to it with a spider. The hydraulic motor was mounted in a tube that fit inside the 6" drum and the motor shaft fit into a blind keyed hole in the 2" round part.
So I figured to chuck it into the lathe and grab it by the 25mm stub, bore it out to 1.75" and machine a collar to fit. As this thing is about 12", it almost rotated but hit the ways and needed another 1/4" of room. I farmed out the hub and got to it with the rest. When I get the hub bored out I will drill 3/4" holes in the drum so I can stick a rod through the hole and plug weld the new collar into the bored out hub.

Today I got a call from the big lathe operator. The stub shaft is significantly bent in relationship to the hub. I called the customer and now he tells me that last fall, some parts broke off inside the combine and the straw blower ate it. That would make sense. Not worth the repair so he will have to get the green one. I have cut a key in the backside of the motor shaft, but that will not interfere with the stepped key they have at JD.
I may have to eat this, I'll think about it.
That might be, a bit tough on the dentures I mean teeth. ya think...
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  #3  
Old 03-14-2019, 08:56 AM
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greywynd greywynd is offline
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Glad to see chips coming off the mill again!

Isn’t ag repair work fun?

Actually I’ve found that half of the time spent on repair work is trying to diagnose what happened and decipher damage. And there’s often the times that you later find out the ‘well, this is what happened’ and it would have saved a lot of time had the story came out at the beginning.


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Old 03-14-2019, 09:13 AM
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MetalWolf MetalWolf is offline
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Originally Posted by greywynd View Post
Glad to see chips coming off the mill again!

Isn’t ag repair work fun?

Actually I’ve found that half of the time spent on repair work is trying to diagnose what happened and decipher damage. And there’s often the times that you later find out the ‘well, this is what happened’ and it would have saved a lot of time had the story came out at the beginning.


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Amen, To that. ones I hate the worst. Is some will only tell ya bits and pieces of the desired info! and then by the time you waste to gather it here and there from them, you are like why didn't you tell me that to begin with.
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  #5  
Old 03-21-2019, 06:43 PM
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clive clive is offline
 
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It must be a universal thing, when I lived in New Zealand we had an orchardist neighbour who could wreck anything, he usually blamed the people who built the machine or repaired it at some stage. To find out what really happened we used to ask his worker.
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  #6  
Old 03-22-2019, 08:39 AM
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Ironman Ironman is offline
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The sequel to the story is when they got the new part JD had changed the key to something more respectable but still odd. Now it is a 3/8 key all the way but I had cut a 1/4 key. as the old 3/8 key was un-usable.
So they brought it back and want it to be a closed keyway and to be 3/8...sigh.

I welded the end of my 1/4 keyway shut, and then the fun began, as the surface to index to is already up in chips.
So I used a 14" mill to get center, but as far as being flat, parallel to the table....who knows?

Anyway, it's done and has stayed away from the shop.
Now I see a chain conveyor drive shaft and sprockets lying on the pad. Couple months back they brought it in and said, Just tack weld it to the shaft, we need it now.
Now it's, We need it fixed...
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  #7  
Old 03-22-2019, 11:20 AM
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LKeithR LKeithR is offline
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Quote:
Originally Posted by Ironman View Post
...Couple months back they brought it in and said, Just tack weld it to the shaft, we need it now. Now it's, We need it fixed...
We don't do that much repair work now but oh how many times in the past I've heard that line...
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  #8  
Old 03-22-2019, 12:51 PM
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Shade Tree Welder Shade Tree Welder is offline
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I have 2 great Ag repair stories....

A local customer, drive his tractor and baler in to my drive, he has about
100 bales left in the field to bale and his knotter broke. So I take a look at
it and I clearly see the cast iron frame is it 2 pieces. But clean breaks. So
I start to take it apart. You know gotta get the frame off the knotter so I
can bevel the breaks (they were clean breaks) Doug, the customer, panics
and tells me he does not have time for this and needs it done fast. I explain
to him that it is cast iron and if I don't prep the weld properly preheat etc.
etc. The weld will not hold and the part will break again very quickly.

He insists that I weld it on the baler, I tell him that I advise against it and if
it breaks again I will NOT guarantee it, and that he owns the problem.

Doug makes a butter knife look sharp.

So, I weld it up, can vee out any of the welds and I made him clear out the
bale chamber as otherwise the baler would catch fire that he was not happy
about either.

I got a die grind out and was able to get a little vee on the cracks. No way
to clamp the part in the baler, so I hold it as best I can and weld it up. He
pays me cash, I insisted as I know Doug and when it broke it would be hell
to get him to pay. He leaves. Keep in mind it is afternoon, and it is going
to rain that night.

About 4 hours later he comes back to my shop knotter frame is broke. He
says my weld failed and he only got 7 bales done. My answer was "NO SHIT
DUMBASS, I told you they would break..." I get his dumb look. Then I ask
what the fuck have you been doing for 4 hours. But I know already, he was
cooling off at the bar, you can smell the bar and alcohol on him. Now it is
after hours so time and a half for labor 3 hours up front plus extra for the
nickel rod. He complains, I turn and walk back in the shop, a couple
minutes later he comes in and asks if I am going to fix it. I reply Cash talks
bullshit walks. You are drunk and stupid, Doug. I don't need you, you need
me.

But he know he has cash in the field and need the work done so he pays me.

I take the frame off the tractor and get to work, weld it up properly, built a
quick jig to hold it together, vee out all the welds, preheat, Nickel rod.
Finish grind and even shoot it with some zinc, cold galvanizing compound.

I reinstall the knotter and re-assemble it. Then I say you can check the
timing on the knotter yourself. Another dumb look... I ask you do know
how to time a knotter right??? Then the fucking truth comes out, no he
does not. I time it for him. All under the 3 hours he paid me, he asks for a
refund, I said no, it is a stupidity tax.

I bitches that he'll find someone else to do his repairs, I reply, good please
do.

He was back inside a month with his dump truck, because nobody else
would deal with him.

Some of my best customers were farmers; as well as my worst customers
were farmers.
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  #9  
Old 03-22-2019, 02:10 PM
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LKeithR LKeithR is offline
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Quote:
Originally Posted by Shade Tree Welder View Post
...Some of my best customers were farmers; as well as my worst customers were farmers...
Yup, as I said we don't do much repair anymore but back in the good ol' days we did lots; and lots of the repairs were for farmers. Had some real good customers--guys who understood, looked after their stuff and didn't quibble over time spent or dollars charged.

Then there were the dumb ones, for them maintenance was: "fix this broken part." Every machine needs repair work from time to time; parts wear out, things break, it happens. What always pissed me off were the "preventable" repairs; things that would never break--or at least they would last a lot longer--if they pumped in a little grease and tightened a few bolts.

I spent about a year in the early 70s running a 966C in a small gravel pit. I had never run one before but the owner drilled into me the need for maintenance. At the end of shift every day you topped up the fuel, checked fluids, tire pressure and pumped grease into all the fittings on the machine. The first couple of times I serviced the machine he walked me through it, made sure I found all the hidden fittings and looked in all the right places. Funny thing was, his machines were always in tip-top shape and we seldom, if ever, had unplanned downtime...
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