If you've been following RRRG for some time, you might know that we have in our spares stock a genuine Class 50 reverser and a Class 37 example, which is similar but not identical to the Class 50 part. We had removed the genuine 50 reverser in order to use it as a template to modify the 37 item to Class 50 spec, and in the meantime the ex-37 reverser was installed in 50030's electrical cubicle so that I could judge how long to make the wiring whilst rebuilding the cubicle.
On Sunday May 25th I disconnected the main cables from the back of the ex-37 reverser, and with Dave Rolfe's help, got it out of 30 and into the container. I cleaned the main power contacts on the the proper 50 reverser and labelled each contact bar while Dave was finishing drilling out sheared bolts around the removable grille that gives access into the No.1 end clean air compartment. Whilst cleaning I happened to notice the auxiliary contact blocks appeared to be facing the wrong way, so I went to Washwood Heath during the week to check 50008 Thunderer, and found they had indeed been refitted the wrong way round after we had taken them apart to make a replica second set to modify the 37 reverser for use in 29.
Whilst working around the cubicle area in 50030, I was impressed by work that Mark Burrows has been doing to restore the cable conduits for the traction cabling to the main generator. This has been a laborious task using the best parts of conduits salvaged from 50023 and 50040 before those locomotives were scrapped a few years ago.
On 1st June Ian, Pete and Dave refitted the decompressor plugs into the power unit, then spent the rest of the day cleaning parts of the power unit ready for painting.
On the same day, I removed the auxiliary contact blocks from the Class 50-spec reverser and fitted them the right way round, in the process realising that the internal cams had been rotated out of their correct positions, so they wouldn't open and close in the correct sequence. The afternoon was spent getting them back into the correct alignment. Now that the reverser has been properly adjusted, my next task will to fit it back into the electrical cubicle in 50030.
