I have leaking hydraulic cylenders on my older, 1977, 1200 loader. After finding a rebuild kit and figuring out a wire lock i have it apart. On the end on most cylenders is a nut that is usually removed with and impact wrench. NOT this one. It has a piece or metal the size of a nut but not multiple sided (perfectly round). It has 4 holes in the top where a spanner wrench may fit and a large hole drilled in the side. Any recommendations on how to get this unscrewed without damaging the facing? Not an experienced mechanic but never saw one without a nut.
Hydraulic Cylender Rebuild
- Thread starter Norm M
- Start date
hard to say without seeing it. The spanner wrench holes are in it for a reason, most likely. There is probably a special tool that fits over it with pins that engage into the holes, with a square drive on the outer end for a ratchet or breaker bar.
Buy a pin style spanner wrench for it and it will come right off. McMaster Carr has them. Might also be called a face style. You can buy fixed or adjustable.
With the hole in the side it may take a different spanner. Some people use a pipe wrench. If you post 4 more times, then could you attach a picture?
The correct tool is a spanner wrench, but in my garage, the correct tool is the one that works. I've done a few hundred cylinder rebuilds on Hyster and JD Fork trucks over the years, and almost always used a pipe wrench, nothing I've worked on ever had a nut on top, that would have made for less busted knuckles.
I strongly suggest you go to Kubotabooks.com using the link below and download the free manual for your loader which has instructions for disassembly and parts #.
Kubotabooks.com
The nut on the end of the push rod is not a conventional nut but a compression nut which is tightened once the new seal and push rod is back in the cylinder.
This illustration is from the manual and shows the unique way the push rod nut is serviced.
You cannot service the L1200 cylinders like a conventional cylinder.
Dave
