Anyway got a right good job in this afternoon I can really get me teeth into or would have it if had any teeth left.
Two stage epicyclic gearbox that drives a turntable at the bottom of a special fork truck. The mast can rotate thru 180 degrees so it can pick off shelves whilst the truck is stationary. Real special, mast is 9 metres high in 5 stages and equipped with cameras etc.
First stage on the plate is OK but on the output stage all the pinions are toast. Fortunately all the pinions are the same except the first stage has a smaller bore but possible to get decent measurements.
And the measurements proved what I suspected when I saw these, that they are special, note the fat teeth. So that knocked nipping up to HPC gears and buying three off the shelf gears - damn.
20 teeth but cut on a 21 PCD, so turn a simple bar up to the OD and throw it on the 'gear hobber' which is thinly disguised as a Victoria U2 universal mill.
And ten minutes later we get a stick of gears.
Drilled, reamed, parted off and a tad of surface grinding we have three new gears.
So just a tad less than an hour but in all fairness they now have to go over the road to the hardening shop which will have to be tomorrow now but they can't get a new turntable bearing until Thursday anyway.
A new gearbox from Mitsubishi is £2,200 and 3 week wait so should have some reasonably happy bunny's.
