The hydraulic cylinder on the shop press I built has been leaking for quite a while. The leak has been getting progressively worse.
Time to rebuild the hydraulic cylinder. It was a used cylinder when I built the press 15 years ago. The ID tag on the cylinder shows a manufacture date of 1963.
Upon disassembly, one of the studs was found to have damaged threads.
The metal was built up by welding the threaded portion of the stud. The stud was then turned down on the lathe to the proper diameter, then threaded. An 1-1/8″-12tpi tap cleaned up the female threads.
With new seals and paint, it’s ready for another 50 years.
If you have a project like this that you would like help with, contact MFR Industries.
The Poulan model 3400, 3700, 3800 and 4000 chainsaws are undervalued. They are a professional grade chainsaw and in many ways ahead of their time when introduced in 1979. They all share the same crankcase and crankshaft with different diameter pistons and cylinders for different displacement. With a little searching, it isn’t hard to find a good used one for less than $150.
This Swinger model 200D wheel loader has a pinion seal leak. The wheel loader was built in Barnsville, MN by Dynamic industries in 1979. Swinger was later sold to NMC Wollard of Eau Claire WI and are still produced today.