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Overhaul update
Overhaul update
The new smokebox number plate on the radial drill shortly after the fixing holes were drilled and countersunk.
The pipes from the Left hand cylinder drain cocks have been separated, cleaned and roughly polished before refitting with their newly painted clamping clips, which can be seen as the two “black things” hanging on the wall behind the pipes.
Graham Bennett refits the Left hand piston complete with piston rings. The steel strips are being used to help ease the piston rings past the steam port at the top front of the cylinder.
Following re-fitting of the pistons, the studs for securing the cylinder front covers in place are in the process of being replaced. The large tap in your volunteer’s hand is used to clear each hole of debris before fitting the new stud.
All the studs in place on the Right hand and...
...Left hand cylinders.
This was followed by temporarily fitting the front cylinder covers in place. The Right hand one is seen here...
...And the Left hand one here. They are secured by only four nuts as their purpose is to aid valve setting, and they will come off again after this has been done.
Meanwhile, the Right hand expansion link has been refitted, and now swings freely.
A minor problem is that the Right hand union link and combination lever are currently about a quarter inch out of alignment.
The union link is temporarily fitted to aid the investigation.
On the smokebox, the door strap and centre boss rivets have all been ground flat.
While beside it are parts awaiting fitment. Lower is the liner which fits in the bottom of the smokebox; then the upper part of the ring by which the smokebox attaches to the boiler barrel; and the door liner.
The smokebox from the rear, with the lower part of the attachment ring in course of fitment.
In the machine shop, the superheater head still sits on the machine. The boiler inspector has requested that it be crack detected, It is also to be separately hydraulically tested, and this plate blanks off its flange fitting to the tubeplate. Hence the white paint.
The crack detection process extend inside the regulator housing. Here we see the three ports via which steam is directed through the elements and onwards to the cylinders.
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