Dial Indicator Lubrication

A question for clockmakers. I have a .002mm per division Dial Indicator that seems a bit sticky. What is the best way to clean and lubricate it? Can I use miniscule amounts of "3 in 1" on the pivots or is that heresy ;-)

I have removed the back and the DI is on a piece of gauze over some White Spirit in a pot (in the vapour only). I read this as a method to release gummed oil.

I read it on the Internet so it must be true ;-)

Reply to
Richard Edwards
Loading thread data ...

I would go for total immersion in white spirit, unless there are rubber parts in the DI, preferably in an ultrasonic tank and preferably dismantled. Simply adding oil to a dirty bearing will guarantee self destruction in a few years. When all is clean, re-assemble and lubricate with real oil, not muck like 3in1 or WD40.

Cliff Coggin Wealden Clock Repairs

Reply to
Cliff Coggin

The late, great George H Thomas defined 3 in 1 oil (by implication, not by actual name) a slow setting varnish and I absolutely concure with his opinion, he sugested that it was great for wheel barrows!

There a two types of suitable oil watch/clock oil and sewing machine oil both of which are

non-gumming oils. They should only applied in MINUTE qantities. They should be applied with an oiler which consists of a very fine wire. Unfortunatly the obvious thing to use is, a fine sewing needle is absoluely USELESS, If you dip a needle in oil in oil and examine the drop of oil you will observe that the drop is drawn up by surface tension so it is

0.5 - 1.00 mm away from the tip, and when you jiggle the tip arround to get the oil where you want it you will have applied much more than you wanted to. A thin wire of softish steel or even copper cut of with a rather blunt pair of side cutters will produce the required "spade" which will keep the oil drop at the end of the oiler so it transfers properly.

H S Walsh

formatting link
suitable oilers and oil: H012 "Trium" oiler set 3.53 H097 "Pioneer" watch oil 3.53 Post and Packing 4.95 Total 12.01

However for a one off job this is really too much to spend and if you could possibly find someone who is "into" horology and local to you I am sure they would do the oiling for free.

Regards Brian

Reply to

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.