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    tackit's Avatar
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    what I did today

    Today I began cleaning the MM251's MiG gun's liner. I pulled out the liner and managed to shoot enough mineral spirits down the liner with a spritzer bottle adjusted to stream to have it run out the other end a few times... I'm leaving it soak overnight.

    Tomorrow I'll run more mineral spirits down the liner and run wire back and forth through it to help loosen up the crud and once more flush it with clean mineral spirits and then run air through it.


    While I had the liner out I checked the liner's holes on the end and found they were not perfectly round and the ends were jagged. I should have taken a picture but didn't think about it until after I had already used my scribe and hammer to round the hole and my file to chamfer the ends smooth.

    I'm thinking that when they cut the liners to length they come down quick and the heat and downward force of the cutting tool distorts the hole a bit... might only been in my case I don't know for sure, but it couldn't hurt to check your liner's holes for roundness and chamfer the ends smooth to help the wire feed better and when reinstalling the liner.

    I let just enough liner stick out of the vice so only the top coil would be forced outwards by the scribe and hammer.

    I figured while I had everything taken apart I would make the old nozzle round again too with my long tapered punch... I first lubed the punch so it wouldn't bind in the nozzle and then turned it over and tapped the punch to get the punch free, it worked out nicely.

    I measured the hole on a new nozzle and the punched out nozzle and found the punched out nozzle's hole was a 1/16 of an inch larger. Next time I'm going to heat just the damaged part of the nozzle with the torch and see if heat will allow just the damaged area to move outwards. .

    8 pictures coming

    If any of you think I post to many pictures just say so and I'll stop immediately.... as far as projects pics go I'm laying off so I don't become boring and annoying to anyone.
    Attached Thumbnails Attached Thumbnails liner 8.jpg   Liner 1.jpg   liner 2.jpg   liner 3.jpg   Liner 4.jpg  

    liner 5.jpg   liner 6.jpg   liner 7.jpg  
    Carvel Loafer and 5304 like this.

  2. The Following User Says Thank You to tackit For This Useful Post:

    RandyM (09-09-2011)

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  4. Top | #2
    Captain Hook Kennyd's Avatar
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    Never to many projects or pictures Jim
    Kenny

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  5. Top | #3
    tackit's Avatar
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    Thanks guys. I feel it's right to be sensitive concerning members that aren't interested in metal work, like the saying goes, "different strokes for different folks." I would hate to get to the point I'm annoying someone. I know my anti-sensor kick must pizz some off but honestly, it's mostly fun for me to complain about todays electric tractors with no hard feelings towards anyone or tractor manufacture intended.

    I hope my pics make up for me not being able to contribute much when it comes to newer tractor questions.

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    mjncad's Avatar
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    Quote Originally Posted by Kennyd View Post
    Never to many projects or pictures Jim
    Keep 'em coming Jim. If anyone gets bored, they can move onto a different thread.
    5304 likes this.
    I have more ideas than ambition.


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    Senior GTT Super Slacker Gizmo2's Avatar
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    Quote Originally Posted by tackit View Post
    If any of you think I post to many pictures just say so and I'll stop immediately.... as far as projects pics go I'm laying off so I don't become boring and annoying to anyone.
    Are you nuts? This type of stuff is where I find out what I don't know and I think I know everything, just ask my wife.
    Keith

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  9. Top | #6
    rgd
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    Pictures are good...

    I for one,enjoy your posts,as I'm sure most do.
    Carry on.....

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    tackit's Avatar
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    Thanks men for the positive feed back. I'll post more pics on the liner job tonight. Before I dropped the wire drive wheels in WD 40 to soak overnight to loosen the crud in the groves, I polished them with a green scotch guard pad, they really polished up nice. For the final cleaning I'll use Naphtha on the wheels and the liner to remove any oil residue on them coming from the WD 40. I was hesitant about soaking the wheels and liner in Naphtha overnight because of the fire issue and stinking up the shop.



    I'll post pics of how the sandblaster worked out a soon as the weather straightens out, it's been raining and damp here for the last few days so at present I'm focusing on inside jobs that need to get done.

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    tackit's Avatar
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    While looking for tools I came across this tool that's used to clear plugged grease zerks. I would like to warn anyone that has one that it's important to know where every zerk is and the direction it's pointed before hitting the tool.


    http://www.automotivetoolsonline.com...5_p_14839.html

    If there is more than one zerk on the same grease channel when you hit the tool a different zerk that may be loose or cracked from damaged can be blown out like bullet and kill or injure you.

    I have multiple grease zerks on my 855's brake pedal's shaft, one side doesn't take grease unless I have someone work the pedals. I make sure when I'm greasing the tractor my head is never in line with any zerk....

    The picture in away shows what I'm talking about when I say multiple zerks on the same shaft. This shaft is split so the pressure most likely would exit between the shafts.
    Attached Thumbnails Attached Thumbnails IMG_0580.jpg  

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    tackit's Avatar
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    this was a double post, I'll just post a picture of the AR 15 I put together.
    Attached Thumbnails Attached Thumbnails LMTCARBINEA1.jpg  
    FamilyTradition likes this.

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    tackit's Avatar
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    I finished up the liner today and couldn't be more satisfied with the results.

    Before I cleaned the liner and drive wheels I had the tension knob tightened down as much I could without breaking the arm off on the wire drive mechanism and the wire still refused to feed..

    Now i have so little tension on the wire I don't see how its feeding let alone coiling the .035 wire at the gun's tip when held almost to the floor.

    Instead of using the spritzer bottle to clean the WD 40 out of the liner I made a reservoir out of vegetable can, 3/16 OD copper tubing and some 3/16 ID fuel line.


    First I scraped off the coating on the outside and inside of the can.

    I cut the copper tube shorter than the #31 drill I used to make the hole in the can.

    I used my little torch outfit to solder on the the 2" long copper tube... I love that outfit.

    I used Kestler's .020 Electronic Silver Solder because of it's small diameter and the thinness of the can and because I have it in my soldering box. I have used that same solder to repair my reading glasses frames.


    The reservoir worked terrifically, I filled the can with acetone and did some other things in the shop while I waited for the acetone to drain through the liner. Not having to fight with the spritzer bottle was worth effort.

    The pics of the wire drive wheels are after their acetone wash.

    I showed my new John Deere rotary cutter blades to let everyone see how rounded over new cutting edges are. When resharpening your blades remember knife edges don't last.

    Next job is to bed liner the 855's foot boards and back and the underside of the seat . I'm thinking about doing the access panel over the drive shaft and down the sides to the foot board with bed liner too.

    13 pics coming, thanks for looking at them.
    Attached Thumbnails Attached Thumbnails scrape off coating 1.jpg   scrape off coating 2.jpg   soldered tube on 3.jpg   #31 drill  3-16 OD copper tube 4.jpg   drill hole in can 5.jpg  

    3-16 ID fuel line 6.jpg   can filled with acetone 7.jpg   draining out acetone 8.jpg   machine end of liner draining out 9.jpg   polished and groves  cleaned wire  drive wheels 10.jpg  

    New JD rotarty cutter blades 11.jpg   new blades 12.jpg   round edges 13.jpg  

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