Sunday, 10 December 2023

Lister Problem and Modification

With a working industrial railway the equipment needs some maintenance. My Lister R had lost one of the bolts in the bar keeping the axles in place. The bolt had torn off every layer of paint down to the bare white metal. Something had to be done and there was another problem that needed attention, too.

The left bolt below the driver had fallen off and the bare white metal spot stood out like a sore thumb.

I replaced the missing bolt with a slice of hexagonal plastic strip glued on with AC-glue. The repaired area was painted with a mix of Vallejo paints to appear as in red primer after an urgent repair. I gave the area a quick wash of heavily diluted black oil paint to blend in with the rest of the loco. Having done that, I began tackling the other problem: the frames of skips being 'caught' under the Lister's buffers particularly when being pushed. This has led to some very prototypical derailments that I'd nevertheless would rather avoid. The steel buffers are simply placed too high on the kit. To prevent the skip frames being caught under them, I added a wooden beam under each of the steel buffers to get a level buffing surface.

The white plastic bolt head is glued in place and the wooden beams fitted with plastic details.

The beams themselves were dyed grey after being treated with junior hack saw and knife. Steel fixtures of plasticard and strip were fitted with AC-glue and the beams glued to the loco's ballast weights under the buffers. 

Nystrup loco no 3 with bolt repair and new extra wooden buffers.

The steel bolts were painted in the same primer red paint as the bolt repair.

Initial testing with one skip showed that the problem couldn't be recreated during three test runs up the gradient to the loading ramp. So far so good.  Further running will show if the solution works in daily service, cutting down on derailments.


Up the gradient with the new wooden beam mounted under the steel buffers.

Crop of the image above show how high the steel buffers sit in relation to the skip frame. The wooden beam helps create a continous buffing surface.


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