SNS 262: Machine Grease Points, Bush Hog Hydraulic Cylinder Rebuild, Tap Wrenches

This week I do some periodic maintenance on the shaper and milling maching using WD-40 Multi-Purpose Grease.
In the shop for repair this week was a bush hog hydraulic cylinder that was leaking and needed new seals installed. I do a tear down, source the seals, and put it back together. Also in the mix are two new to me tap wrenches that are just lovely!!

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34 thoughts on “SNS 262: Machine Grease Points, Bush Hog Hydraulic Cylinder Rebuild, Tap Wrenches

  1. Would like to add a small but important trick —–after final assembly —–Melt a small amount of candle wax in to access grove to seal out trash

  2. saw some big tap wrenches that were big like that once in an antique store, not quite as big but were the same size the ones in the railroad museume here used to thread pipes for old steam engines and the like,

  3. Once you retract the spring and load the grease tube and screw it back together, you can shove the rod back into the grease. You don't have to leave it sticking out 😉

  4. Hey adam… I'm in the electromechanical industry as a lead field tech working on motors from fractional horsepower to thousands of horsepower. Even with the several thousands of horsepower motors, if not oil bath or Babbitt bearing motors, mobile polyrex EM, or any equivalent EM grease is the recommended grease for motor bearings, and only 3-4 pumps of grease bi-annually per bearing, larger bearings of course require more grease, sometimes even flushing. A general purpose grease is most likely an EP grease and too thick, causing higher bearing temperatures and will shorten the life of the bearing. Especially if it's a motor that runs daily. Over and undergreasing bearings or with the wrong type of grease is one major cause for failure. Unfortunately a poly based grease such as the polyrex em, doesnt play well with general ep grease. Just a little food for thought. I'm sure one of the biggest complaints motor mannequins have is stators filled with grease, ot liquified grease all thru out the windings… I love watching all your videos as you repair about 90 percent of the stuff I play with daily. Probably the best, most thorough machinist I've seen, you're an artist.

  5. I LOVE how neat and tidy the place is, and how neat and tidy and organised you are when you work. A tray, with everything spread out, no big piles of stuff to rummage through. Bliss.

  6. Hey, Adam, a quick question. You noted some time back that there was an instrument on the Starret (I believe it to be circa 1944??), which was a 1010 thickness dial indicator – it has no extra letters after it's number like thew ones in the current Starrett catalogue. Well, I've located one, and I wish to know if you you want it still. I would request a swap here of one of your (complete Starrett 196G Dial indicators that you showed in a video some time back. I can get one her in Australia, but it is missing a part, and it is the same price as the 1010. The guy is holding it for me, so can you let me know if you're interested!

  7. 30 years in fairly high level industrial maintenance and I learned some stuff.

    Basically, it's why I keep coming here.

  8. That's one of my favorite grease guns that Lincoln makes. It appears to be a model 1142.

    Fun fact : that grease gun 33 strokes or pumps equals 1 oz.

    Typically I do bearing calculations to determine grease volume to each lubrication point. If you take your bearing size and measure the OD of the bearing and the id of the bearing x 0. 114 it will give you the amount of grease to apply in ounces for typical ball bearing. Anyway great video as always Adam

  9. Good video. No worries on the sponsorships as long as they are quality products and acknowledged. Hydraulic cylinder rebuilding might not be the most glamorous job, but still satifying. Somebody's livelyhood could depend on the machine one of those comes out of.

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