Tuesday 29 March 2016

Custom-made Bolts

Report by  Dave High. Photos and all the hard work by Dave Linton

The KS4415 project is full of contrasts: after the last report of heat, team work & big hammers, now a report on one person working carefully & precisely.

Each axlebox has 4 bolts which connect the upper (keep) part of the axlebox to the springs. Of the 24 bolts, 6 were considered unfit for re-use. Dave Linton has manufactured 7 new ones: 6 for fitting, one ‘just in case’. The drawing below shows the various components. Dave had previously made the spring clamp plates.

Overview of the components

Roughing out in the lathe

A machinist's half-dozen

Some brutal attention from a hacksaw

Tickled off to fit in the milling machine

Rather sexy, if you like that kind of thing

With the Kerr Stuart drawing

This is what the finished product looks like 

The view from the top of the axlebox, with one of the old bolts for company

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