7820 Dinmore Manor - The Blog

This blog will follow the heavy overhaul of 7820 through to its return to steam. The chassis is being overhauled at Tyseley Locomotive Works whilst the boiler is being overhauled at Ian Riley's workshops.
We are working hard every weekend to bring together the hundreds of small pieces that require refurbishing to get the loco back into working order. Follow us to keep up todate with the weekly progress and who knows if you like the look of what you see you may even be tempted to join us and help put 7820 back in action.

Tuesday 9 June 2015

Tender Brake Gear Progress - 30.05.15

        Progress continues to be made on the refurbishment of
     the tender brake gear. The bearings on the end of the
  brake beams required replacement and new bushes
 have been machined to an interference fit.
          The propane torch is lit to commence heating the bush for fitting to the beam 

                                                   The bush is gently heated

Rotated to get an even distribution of heat

Finally to a red hot temperature

                                    The bush is quickly slipped onto the journal of the brake beam,
                                     the heat having expanded it to be a slide fit and the retaining
                                                 washer is placed against the bush end

                                             The retaining nut is screwed up to the washer

and quickly tightened to apply pressure to the bush

                                       With the retaining nut tightened, the bush will not shrink
                                     away from the thrust face washer holding this firmly in place.
                                       Six bushes have been fitted to the three brake beams and
                                      these are now complete ready for cleaning and painting.
                                       Just three more parts of the numerous parts of the brake
                                                        gear assembly are ready!

The brake hangers which support the brake beams
are also being re-bushed and are here seen cleaned and painted with primer
 Meanwhile, in a galaxy far, far away, the main brake beam
is being bushed and machined and new tender pipework is in manufacture 

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