Need Help Finding a Tool

[TheToolMan]

Hey guys, i need help finding a special socket to remove a nut on the rear end of a servo motor i am working on rebuilding, The nut is round and has 4 square slots in it for a pin to ride in to unthread the nut, it looks very similar to a bearing locknut found on many trucks but smaller, The O.D. of the nut reads 18mm ( 0.712'') and the pins read 3.25mm (0.125''), I have pics of the nut if anybody wants to host them, Thanks in advance

 

[RickP330]

Not sure I can help, but post the pics, I'd like to take a look.
RickP

 

[eschoendorff]

Ironic that "the tool man" needs help finding a tool, isn't it? j/k

Would something like this do the trick?

http://buy1.snapon.com/catalog/item...8&group_ID=603&store=snapon-store&dir=catalog

In the end you may find that you actually need to fabricate a tool to do what you need. It will probably be cheaper, and possibly more fun.

 

[TheToolMan]

I would post the pics but the board will not let me, I think it is because i am new, RickP Thats not what i am looking for, Actually i already hace that wrench, I use it all the time to take apart hydraulic cylinders, The tool i am looking for has 4 square notches in the edge of the nut, It would be something like this but smaller

http://www.whittet-higgins.com/part.php?series_id=76

 

[PAToyota]

Problems posting pictures is usually due to file size. Either host them on something like PhotoBucket and link them or use something like ImageResizer from the Windows PowerToys to get the file size down: http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx

Very difficult to recommend a tool for some unusual fastener that cannot be seen...

 

[64merc]

Ok, this may sound really really far fetched here, but what if you took a cheap HF spline socket (they sell them now), and grind away all the splines except the four that fit into the grooves. I don't even know if they would line up properly, but it's just a thought.

Also, couldn't you just protect the nut with a rag or something and use smooth jaw pliers to grip it. Again, just a thought.

Or, maybe you could take a piece of tubing and weld on 4 little rectangles (keys?) that would fit into the grooves. I don't know if this is possible because I've never welded before.

 

[TheToolMan]

http://s300.photobucket.com/albums/nn23/ebexpo/?action=view&current=ToolForumPics004.jpg

I did try to use pliers on it but it is on there. Cant use heat will melt the windings, Also I run into theese motors all the time and need the ''Real"" tool

 

[wrenchr]

 

[64merc]

Sorry, for some reason I thought you wanted to fabricate a one time use kind of tool.

 

[wrenchr]

 

[Kevin54]

I've modified a few sockets like that at work made out of an old socket. Although that doesn't do you any good at the moment. For future use, if you need one I could modify one. We can talk. But for the time being, can't you knock it loose with a brass punch or a drift?

 

[TheToolMan]

You really cant get down in there with a drift punch, i would be hitting it at a downward angle and if the punch slips off and damages the windings its over, I could modify a socket but i was wanting to buy a ''set'' because i see these all the time

 

[Moose-LandTran]

What about something like that? It has two "teeth" that engage with a slotted nut. They're meant for VW-Audi shock absorber nuts. I have some at work, i can measure them tomorrow if you want.

Why don't you try using a pair of long-nose pliers to undo the nut? I do that quite often with this kind of thing, and it works.

 

[Danglerb]

Maybe two pair of pliers with the 90 degree bend, slip the tips into the slots, grip and rotate?

Otherwise I would take a cheap socket and hit the grinder.

 

[Moose-LandTran]

You don't need to use all 4 slots, two will be good enough. Straight or bent long-nose should do it.

 

[russlaferrera]

After a good 2hrs of Google time . I think the pin socket that you need is covered by the National Security of the U.S. Govt. I have not seen any socket specs given. This plus the fact that it looks like yo socket must be very deep (several inches.)

My suggestion is to have some custom made. They are easy to make and should not be $$. Have them harden the socket.

 

[scofo]

Hey Toolman, I just checked my Snap-on S9613 socket with a caliper, no good. I.D. .775". O.D. .900". 4 pins are .220"each and 1.25"deep or so. Maybe look at antenna jamb nut tools?

 

[T56 Impala]

Maybe you could email this guy and see if this http://cgi.ebay.com/ebaymotors/Part...adiZ2871QQcmdZViewItem?hash=item320264481098& will fit.

 

[dxdexter]

I've made a few of these tools when one wasn't available. Just get a piece of pipe or an old socket that is the diameter equal to the distance from the closest point of opposite notches and then weld 4 pieces of key stock to the OD of the pipe/socket that will fit into the notches. You now have a socket.

 

[64merc]

I've made a few of these tools when one wasn't available. Just get a piece of pipe or an old socket that is the diameter equal to the distance from the closest point of opposite notches and then weld 4 pieces of key stock to the OD of the pipe/socket that will fit into the notches. You now have a socket.

I suggested this (never actually tried it though), but he apparently wants an off the shelf set of sockets.

 

[Jbullfrog]

Have you tried an electric motor shop?

 

[speed bump]

Just use a chisel or a screwdriver with a hammer and break it loose.

As far as I know there isn't a tool that will go directly on to that other than if you got lucky and an Axle nut socket that fit (Your best bet for these is OTC). However I don't think you want a $20 socket unless you are doing this all the time.

 

[W-Cummins]

These are made to remove that type of nut

William...

 

[64merc]

These are made to remove that type of nut

William...

Ohhhhh, is that was those are for? I learned something today, as usual.

 

[Moose-LandTran]

These are made to remove that type of nut

William...

Yes yes, hook spanners. Used commonly on hydraulics and coil-over suspensions. Do they make one small enough for this shaft though?

 

[TheToolMan]

Ok guys thanks for all your help ill let you know what i end up doing, I already have those hook spanner wrenches and it will not work in this application, The nut is down inside the motor a few inches, i know it dosent look like it by the pictures, I work for an electric motor repair shop so i see theese nuts all the time and they are always a pain to get off, I usually use the above techniques but this paticular nut is rusted on there good, I think i am going to use an old impact socket and grind the hell out of it, and aging thanks for all the help, I never got help from and board tike this before, you guys are awsome, I think this os going to be my new home

 

[TheToolMan]

GOT IT OFF!!!!!!! I ended up grinding up a 13mm deep impact socket so it had the 4 teeth, it dosent look pretty but it worked, Now i just have tp make 10 more in different configurations