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Fuzzy 
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Joined: 28 Aug 2012
Location: Omaha, NE
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 Topic: Loader Cylinder Question
Posted: 15 Nov 2016 at 9:32pm |
I am trying to rebuild my 400 series lift cylinders and I can't figure out how to get the retaining nut off. I don't want to beat the crap outta the nut with a punch and destroy it, but I also don't know what the correct tool would be. All of the gland nut wrenches I've seen have round pegs and mine has two rectangular slots. What's the correct tool, and where do I get one?!? 
Edited by Fuzzy - 16 Nov 2016 at 9:12am
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Clay
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Joined: 11 Sep 2009
Location: Udall, Kansas
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Posted: 16 Nov 2016 at 11:09am |
Easy to make the wrench. Take a piece of plate and cut a half circle to fit the polish rod. Two pieces of key stock. Weld the key stock to the half circle plate. Weld an old worn out (long) wrench to the plate. Now you have your own cylinder gland nut wrench.
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DrAllis
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Posted: 16 Nov 2016 at 11:33am |
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A-C had a special wrench made for just that kind of cylinder. Good luck grinding keystock down that thin and having the strength the factory tool had.
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Fuzzy
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Posted: 16 Nov 2016 at 3:49pm |
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I don't have the tools/ability to weld up my own wrench anyway.
Anywhere I could find a wrench like that?
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Tracy Martin TN
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Posted: 16 Nov 2016 at 4:00pm |
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I made one with bar stock. I drilled and tapped two holes at correct spacing. Then screwed in two grade 8 bolts. Flipped it over and machined the flats on bolts. Works real well. One of the perks of having a machine shop. Tracy
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No greater gift than healthy grandkids!
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DrAllis
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Posted: 16 Nov 2016 at 6:22pm |
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Don't know if you could crank out a half dozen or so and be able to sell them for $50 or not?? Probably some would think that's too much anyway.
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LeonR2013
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Posted: 16 Nov 2016 at 6:28pm |
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Do you have a torch? If you do heat it real good and you should be able to tap it out with a punch. If it's already leaking you ain't goin' to hurt anything.
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Tracy Martin TN
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Posted: 16 Nov 2016 at 7:24pm |
 DrAllis wrote:
Don't know if you could crank out a half dozen or so and be able to sell them for $50 or not?? Probably some would think that's too much anyway. |
Dr Allis, you are so right. Some people don't consider the time required to make up special tools. In the long run it saves the user much time and effort. Tracy
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No greater gift than healthy grandkids!
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Fuzzy
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Posted: 20 Nov 2016 at 10:02am |
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I don't have a torch and I dont have a machine shop. I was hoping I could just buy the tool. $50 is very reasonable.
Guess I'll take it in to the hydraulic shop and grab my ankles...
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Clay
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Posted: 20 Nov 2016 at 10:21am |
I forgot, my dad made one similar to the one Tracy mentioned. Daddy made it out of an adjustable jaw wrench with the pins welded to the jaws.
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Dave (NE)
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Posted: 20 Nov 2016 at 11:07am |
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Are you talking about needing a spanner wrench? You can get them at TSC. Otherwise, I simply made one with a couple pieces of flat steel I had left over from a garage door hardware, which I crossed over each other in the middle. Bolted them together. Then put bolts in the ends the size of the holes in the cylinder I needed them to fit.
Here is a picture of the spanner wrench I made (black bars) and some that Gatz had made (nice looking orange ones) and given to me.
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Dave (NE)
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Posted: 20 Nov 2016 at 11:09am |
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Fuzzy
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Posted: 20 Nov 2016 at 1:02pm |
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Well, I took the same hardware off my garage door and tried to make that same setup, but it didnt work because the bars are too wide. The piston is 1.5 in. and the rectangular slots are 1 7/8in apart. So I tried to make a tool out of thinner stock that I had laying around and ground down some grade 8 bolts to fit the slots, but the bars just bent when i put pressure on them.
I'd love to see the AC tool that is designed for this- I dont know how you build a wrench that is wide enough to span the 1.5 in piston, but narrow enough to fit the narrow slots and strong enough to break the whole thing loose.
Edited by Fuzzy - 20 Nov 2016 at 1:03pm
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HudCo
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Posted: 20 Nov 2016 at 7:23pm |
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in your case i would go to a local fab shop with your cylinders and have them biuld a wrench for you , then use it to break them loose in case some heat is needed and test the quality of the wrench you are buying. then you will be on your way to finish the job your self sometimes mild steel just wont cut it,so i keep a r plate around and old cutting edges for things that i need hard springy steel for mostly when i have to make a tool
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Dave (NE)
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Posted: 20 Nov 2016 at 8:13pm |
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[QUOTE=Fuzzy] Well, I took the same hardware off my garage door and tried to make that same setup, but it didnt work because the bars are too wide. The piston is 1.5 in. and the rectangular slots are 1 7/8in apart. So I tried to make a tool out of thinner stock that I had laying around and ground down some grade 8 bolts to fit the slots, but the bars just bent when i put pressure on them.
Sorry, thought I had a great idea, as it worked for me on the D17 IV lift arm cylinders I had to redo. And it is even adjustable! Good luck with your fabrication project. Dave
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Tbone95
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Posted: 21 Nov 2016 at 6:38am |
Fuzzy wrote:
I don't have a torch and I dont have a machine shop. I was hoping I could just buy the tool. $50 is very reasonable.
Guess I'll take it in to the hydraulic shop and grab my ankles... |
Sorry about your dilemma. Christmas is coming, I strongly suggest asking Santa for a torch. Gotta be the #1 tool required after your basic wrench set!
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SteveM C/IL
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Posted: 21 Nov 2016 at 1:01pm |
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9 times outa 10 heat is your friend...
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Ted J
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Posted: 21 Nov 2016 at 4:36pm |
SteveM C/IL wrote:
9 times outa 10 heat is your friend... |
DANG Steve, you're a poet! BUT, I agree........
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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CTuckerNWIL
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Posted: 21 Nov 2016 at 7:41pm |
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Even if you have the "factory wrench" I'm betting some heat will be required. I did a Power steering cylinder last winter. Wrecked a store bought wrench, then built my own heavy duty one and still couldn't budge it even after heating some.
I ended up taking the wrench and cylinder to the local machine-welding shop and with a rose bud torch on it and a 3 foot cheater on the wrench, we got it to break loose.
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