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Bogie Pivot
13/01/2025
	Today we started to fit the bogie pivot. The top of the pivot is in the foreground of the photo having been degreased prior to fitting. John is under the pivot stretcher using a stone to make sure that there are no burrs, bumps or sharp edges so that the mating surface is flat and clean and the pivot will bolt down fully flat. The grey board at the top of the photo are masking boards to protect the cylinder mounting area on the frames.
Bogie Dimensional Survey
13/01/2025
	The final major job on the bogie is to finish the axlebox guide liners to their final dimensions. We have to set the correct working clearance between the axlebox guide liners and the cannon axleboxes. The wheelsets have to be able to be able to move up and down within the axlebox guides without jamming and the wheelsets need to parallel to each other and square to the frames. Liam, CTL Seals Inspection manager, has been working with the Faro Arm to build a 3D model of the surfaces on the axlebox liners, so we can we check for squareness and parallelism and decide where and by how much to make adjustments. In the past this would be done by large squares, trammels, ruler, caliper and wire stretched along centrelines.