C&P Pilot - Cracked Chase

If possible, what’s the best way to repair a cracked chase for a Pilot?

I had a student crank too much pressure with his type lockup and the chase cracked at one of the corners.


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take it to someone who welds, they shoukd know how to fix it, there are many chases fixed this way.

Would it be imprudent to pose the question, why was presumably a student, having to lock up to THAT pressure? along time ago even with a Heidelberg or a Thompson Platen with maybe 75% of the chase containing plate(s) mounted on Monotype mounting base (obviously very heavy) the comps would perform the, does it lift O.K. by putting one quoin, under one side of the chase and attempting to push through, any given point, down, simulating spaces rising on the run, in which case the pressure from the quoins, would have been more than adequate, to not split the chase, UNLESS the Job was not made up properly? Plus it would seem expedient to establish what material your chase is made from i.e. Cast Iron or rolled/forged steel because generally welders of steel are not always up to speed with cast iron, most older chases appear to have been cast iron, more modern usually steel,!!!


Chases for C&P Pilots are cast, not forged. To make the best repair you need to find someone who can do cast iron welding, which is done in an oven. Brazing is the usual repair (which is like soldering with brass or bronze), and it works most of the time, but welding is better.


cwelsh, bring your chase to your local welding shop, they will grind the crack open to allow for the welding rod to have as much surface area to weld to, then they will heat up the groove, then use nickle welding rod to fill in the groove, this is common pratice for people that use old machines and any welder that is worth anything will know how to do this without warping your chase

Many thanks for the comments.