Identify Hydraulic Pump & Need Some Help - Super A or Cu

RTR · Jan 26, 2013

I work on the offset Farmalls (Cubs and Super A - 140 tractors). Had a few hyd. pumps on the shelf and thought I would try and tackle a rebuild job since I've never done that before. I've ordered some rebuild kits from TM Tractor that are for the Cub hyd. pump. The kit is actually from Case/IH.

First of all.....is this pump from a Cub or the Super A/140 tractors? After I figure that out, then I'll ask my other questions on the rebuild stuff. I've got good detailed pictures of all of the parts too.

Numbers on the pump seemed to read: 05101202003 and 12049p35

Vern · Jan 26, 2013

Looks like it's from a S/A
Vern

RTR · Jan 27, 2013

(quoted from post at 10:14:51 01/27/13) Looks like it's from a S/A
Vern

Ok, 2 questions.

#1) I have the rebuild kit for a Cub pump, but what about this one for the Super A? Where can I get a good, complete kit?

#2) Also, I cut the top off of a BIG container (2 gal maybe) of Purple Power degreaser, and let them sit for a week (I was out of town) to degrease and clean up so when I got back I could work on them. I would like to be able to bead blast them but don't have the capability to. Also, I feel like I should have put them in a parts washer, but the one I bought at an auction years ago sits in the tractor shed because I don't have a place to put it in my shop. The purple power was the easiest because of the container to put them in. Question is....I pulled them out to clean up and disassemble last night and they both had this hard, white, crystalline looking growth on them. Look at the pictures.....what is this?? It is taking a good strong wire brush to knock it off. You can see it in the crooks and crevises where I couldn't get the wire brush.

teddy52food · Jan 27, 2013

Looks like that cleaner has sodium hydroxide (lye) in it.

IH fan · Jan 27, 2013

Hard white "growth" is aluminum oxide... much the same as rust on ferous metals. I can't say if the cleaner added to it, but it's pretty much normal for old aluminum.

RTR · Jan 27, 2013

(reply to post at 21:07:32 01/27/13)

The cleaner had to add to it since they had been soaking for 1 week. When I put both pumps in there last weekend they were free from the growth and now they are covered in it. I'll try and get a pic of the other one that is still soaking.

What would be my best bet to get all of the parts clean and free from the hard growth? What about the internal parts with the deposits?

Sounds like I need to clean up the shop and put my sand blast cabinet together that I've had for a few years. lol

IH fan · Jan 27, 2013

Any flat internal surfaces, I'd get some real fine grit, 400 or smaller, wet or dry sandpaper. Put it on the flatest surface you can find, and wet sand them back flat and clean. Any other surfaces, you could mask off the flats and carefully blast them, but I'd try to use soda as it will not cut the aluminum, but should do the oxide. This is what they use with aluminum airplane parts when they restore old planes. Sand would be bad and glass beads not quite as bad as sand.

RTR · Jan 27, 2013

I do have one of those soda blaster guns from Harbor Frieght, and tried it once on some parts. If I remember correctly, it didn't really do a great job, and made a HUGE mess of dust and soda everywhere. It seemed like it was just "blowing" soda everywhere without any power to clean anything. I'm using an 80 gallon heavy duty oil drive compressor that fills up to 175 psi and shuts off.

(quoted from post at 22:43:36 01/27/13) Any flat internal surfaces, I'd get some real fine grit, 400 or smaller, wet or dry sandpaper. Put it on the flatest surface you can find, and wet sand them back flat and clean. Any other surfaces, you could mask off the flats and carefully blast them, but I'd try to use soda as it will not cut the aluminum, but should do the oxide. This is what they use with aluminum airplane parts when they restore old planes. Sand would be bad and glass beads not quite as bad as sand.

RTR · Jan 27, 2013

Yep. Tried the soda blaster again with the big compressor. Just blew soda everywhere with out really cleaning anything. This is a cub hyd pump I just blasted. You can see the paint, dirt and grease still on it. I flaked off the clump of dirt with a screwdriver and he blaster wouldn't even do it.

glennster · Jan 27, 2013

castrol super clean or purple power as its called is caustic and will eat aluminum. if you spray it on aluminum wheels, you have to rinse it off in about 5 minutes or it will discolor the wheels. i would not do any extended soaking in it.

RTR · Jan 27, 2013

(quoted from post at 03:38:31 01/28/13) castrol super clean or purple power as its called is caustic and will eat aluminum. if you spray it on aluminum wheels, you have to rinse it off in about 5 minutes or it will discolor the wheels. i would not do any extended soaking in it.

Hey Glenn....I'm not after I've expierenced this. It's just all I had at the time and the only thing I had that the pumps would fit in and soak. I'm gonna try to get my parts washer fixed up and installed in my shop. Gotta lot of cleaning and rearranging to do before that. The Purple Power works wonders cleaning tires and degreasing tractors, but for this I'm not going to do it anymore. Also, my hands are "broken out" from having them in the Purple Power. Nothing else has "burned" my hands except this....Acetone, Lacquer Thinner, etc. Gonna just reserve the P.P. for washing tractors and use it in a garden sprayer.

Identify Hydraulic Pump & Need Some Help - Super A or Cu

RTR

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Vern

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RTR

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teddy52food

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IH fan

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RTR

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IH fan

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RTR

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RTR

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