Steam mechanical Lubricators

I had the opportunity last winter to repair and
recondition eight Madison-Kipp, Manzel and McCord steam mechanical
lubricators. I had both blind and sight-feed types. During this
endeavor I received a thorough education on these units, as at the
time I had no troubleshooting information of any kind, and I kind
of flew blind.

Prior to the 2005 Pawnee, Okla., Steam School, I contacted my
friend Bruce Babcock, who had a manual for Madison-Kipp published
in 1936. I borrowed it for making copies for the school students.
Here, I am listing the many problems I discovered during the
reconditioning process that are well covered in the manual Bruce
provided.

1. Excess sediment in oil reservoir, from not being cleaned
regularly.

2. Pump discharge valve missing parts, or had steel base and
steel check that were rusted from the terminal check at the steam
pipe ahead of throttle. I made new discharge checks of 360 brass
with 316 stainless ball choice.

3. Broken part: I had two lubricators with the pump eccentric
that swings through 54 degrees while moving the pump piston/plunger
stroke from 0.285 to 0.310 depending on the type, blind versus
sight feed. (The manual information tells you they are not
interchangeable. I found this out prior to getting Bruce’s
help. I made new parts from 360 brass and this really tested my
ability as it turned into a geometry and trigonometry chore.)

4. Tubular sight glass leakage/broken: These were replaced with
new 1/2-inch Redline type, new rubber gaskets at bottom and leather
at top.