Adventures in rebuilding the 1956 420-C .

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Randynscottsboro
440 crawler
440 crawler
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Joined: Thu Oct 02, 2008 2:36 pm
Location: Scottsboro, Al

Post by Randynscottsboro » Thu Feb 05, 2009 6:41 am

Bret,
I saw a lathe on GovDeals.com this week cheap. You might want to check that csite out if you haven't already, it is where gov agencies sell there surplus and this lathe was from a trade school.
Randy
2130 HFWD
1120 JD
Case SC
1846 Case skidsteer
2030 JD
450 JD
350 Case crawler
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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Lathe is up and running

Post by Lu47Dan » Wed Mar 18, 2009 8:34 am

I finished building my rotary phase converter , on Monday evening and ran a few test cuts on the lathe Tuesday afternoon .
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This is a 0.100 test cut , about as much as the old girl likes .
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The test bar is just plain old Cold Rolled steel bar that has been in the shop for a long time
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The rust was removed all the way around with about a 0.035" cut .
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Playing with speeds and feeds .
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Surface finish at about 200 rpm's and 0.027"/rev feed .
Now I can build up the damaged sealing surface on the axles of my 420C . :D
These photo's were taken with the lathe running and making a cut , except for the final surface finish photo . I bought a better camera
Dan :D
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Eletrolytic rust removal

Post by Lu47Dan » Sat May 02, 2009 5:59 pm

I started the rust removal process yesterday on the instrument panel support by putting it into the ERR tank , it is happy bubbling away slowly removing the rust and some of the old yellow paint . Once the rust is gone then it will be time to remove what paint is left and remove a couple of broken bolts before degreasing it and readying it for paint
I have the plans drawn up for the bushing press to change the bushing in the idlers and the track track support rollers . All that is left to do on that is to build it and make the removal and installation tools for the bushings .
I will be ordering the aluminum for them tonight .
Just a little update on my progress . Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Just about ready to rebuild the Idlers

Post by Lu47Dan » Mon May 18, 2009 5:19 pm

I finished building the press to rebuild the idlers and the upper support rollers .
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The press was built from drops from other projects and steel I saved from the dumpster on one of the jobsites I was on .
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This is the driver to remove the old bushings from the idler . It is turned out of 1018 steel .
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This is a 7/8" through bore to allow the driver to be mounted to the ram of my 4 ton port-a-power's cylinder .
It was harder to figure out what to do first then it was to make this driver . I am waiting on a blade for my parting tool to finish it up . I might take it out of the chuck and cut it off in the bandsaw . I am itching to get started on the rebuilding the idlers . Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Bushing driver finished and the test of the press

Post by Lu47Dan » Wed May 20, 2009 6:07 am

I recievec the blade for my parting tool yesterday morning and set it up .
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The cut went smoothly , I used a lot dark threading oil while cutting .
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Finish cut , not the prettiest but hey is is just a driver .
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Bushing end .
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J.D. Tool Number , for future reference :D
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The press works .
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Old bushing out , now the idler can be sandblasted . :)
Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

KenP
350 crawler
350 crawler
Posts: 824
Joined: Tue Aug 26, 2008 2:05 pm

Post by KenP » Wed May 20, 2009 1:54 pm

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Last edited by KenP on Thu May 30, 2013 4:52 am, edited 1 time in total.
No longer posting on JDCrawlers

mini kahuna
1010 crawler
1010 crawler
Posts: 301
Joined: Tue Oct 02, 2007 1:08 pm
Location: rhode island

Post by mini kahuna » Wed May 20, 2009 2:28 pm

nice job making that bushing driver,I guess if you have the know-how and a big enough machine shop you can make just about anything.
many years ago an old timer had a machine shop setup to work on indian motorcycles,he could fix or make anything for those bikes.
I watched him repair a hole in a case the size of a coffee can lid,heli arc and a lot skill.
you might be able to start your own antique crawer repair!!!

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Post by Lu47Dan » Wed May 20, 2009 9:39 pm

mini kahuna wrote:nice job making that bushing driver,I guess if you have the know-how and a big enough machine shop you can make just about anything.
Thank you , would like to have the room to get a mill and get my surface grinder home .
mini kahuna wrote:you might be able to start your own antique crawer repair!!!
And compete with Lavoy , no way . I have enough headaches right now :lol:
Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Installation Driver

Post by Lu47Dan » Sat May 30, 2009 9:04 am

I finished the installation driver and I am now ready to sandblast the idler and mounting parts to get them ready for paint .
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Installation Driver and Bushing
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Bushing on the driver .
I still need to stamp the John Deere Tool Number on it for future identification .
I am also in the final stages of testing of my hopper for my pressure washer sandblaster attachment , I might get it tested today to see if the orifice I made for it is the right size .
Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

Pistonman
420 crawler
420 crawler
Posts: 26
Joined: Sun Feb 22, 2009 1:29 am
Location: Kingston, Washington

Post by Pistonman » Sat May 30, 2009 6:45 pm

I need a set of those.

gus
2010 crawler
2010 crawler
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Location: North West
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Post by gus » Sat May 30, 2009 6:48 pm

Thanks :D :D :D :D :D

I'm about to bring my 420 into the shop and do exactly what you're doing. I think you've saved me a lot of work..... :wink: :lol: :lol:

Gus

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Post by Lu47Dan » Sun May 31, 2009 12:19 pm

Pistonman wrote:I need a set of those.
Not hard to make if you have access to a lathe . Could make you a set for a reasonable price plus shipping . They would fit into a small flat rate box .
gus wrote:Thanks :D :D :D :D :D

I'm about to bring my 420 into the shop and do exactly what you're doing. I think you've saved me a lot of work..... :wink: :lol: :lol:

Gus
It has been interesting to say the least :D
I have decided that the transmission will get torn down and rebuilt also , since I am this far into it I might as well do the whole thing . Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

Pistonman
420 crawler
420 crawler
Posts: 26
Joined: Sun Feb 22, 2009 1:29 am
Location: Kingston, Washington

Post by Pistonman » Sun May 31, 2009 10:44 pm

Unfortunately I do not have a lathe. so I will have to get them made or improvise.

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Lu47Dan
1010 crawler
1010 crawler
Posts: 401
Joined: Mon Feb 11, 2008 3:17 pm
Location: NWPa

Update.

Post by Lu47Dan » Fri May 28, 2010 10:47 pm

Well with many fits and starts on rebuilding this crawler I am about ready to get it done. I found the last of the big parts for her and I have to build a few projects before I get started. One a hot tank to remove the nasty grease and dust from the center frame. I might get that started tomorrow :) . The hot tank has to be tall enough to submerge the center frame completely with the bell housing pointing down. :? I have a boiler expansion tank here that I picked up off a friend a few years back, I will have to build a set of legs to support the tank above the turkey fryer burner, and stabilize the tank while loading the parts in. I will use a set of chainfalls to load the parts into the tank, the chainfalls will hang off my gantry crane I have here. Once the parts are out of the tank I will pressure wash them and then sand blast them.
I might start on the hot tank tomorrow.
Dan.
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!

Ray III
2010 crawler
2010 crawler
Posts: 609
Joined: Sat Aug 25, 2007 1:39 pm
Location: Troy, NY

Post by Ray III » Mon Jun 07, 2010 8:02 pm

Hot tank? Just find a steam cleaner (pressure washer with a boiler). Those things will remove paint and radiator fins.

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