Sunday 21 February 2010

Again work is continuing on the bogies with yet more grime removal. Stuart and Paul experienced the joys of broken stud removal. Typically these studs are rusted in solid and the only way to remove them is by drilling them out and re threading by means by of a tap. No not something that is attached to a sink, rather the tool that cuts the thread. The centre has to be accurately marked and centre popped. A small pilot drill is applied and then the tapping size drill is last to go through. A small picking chisel extracts the remanding thread and the tap is screwed through by means of the tap wrench. Sounds easy but its not, as it is very easy to drill off centre and a slight change of angle can be disastrous. Fortunately Stuart served his apprentiship with the Victorian Railways at it Newport workshops. Stuart advised that it had been some time since he had done this type of work however with only one broken drill by days end this was judged as a good result. Stuart shared his skills with Paul and as a result both are now qualified as stud extractors or words to that effect! One can picture them as bouncers at a night club extracting studs. After they were finished with the studs the bogie was given its fist coat of black paint.



After cooking the BBQ Barry set to the leading head stock by use of the electric grinder and wire brush. As usual most of the old paint flakes ended up on Barry but the headstock now looks great.

Alan cut out the rusted centre bowl from the from the leading inner bogie. This should delight our bogie guys Kyle and John as both had the day off due to other commitments. Safe to come back guys, jobs done! In truth both have done a magnificent job so far, and a day off now and then is well deserved.

A big thankyou to all who organised the fund raiser trip to Kandos on Saturday the 20th of February. Thanks also to all who supported the project by purchasing tickets. Last but not least a thankyou to 3801 LTD for making their carriage available, it was a great day out.

The next workday will be Saturday the 6th of March.

Alan

Saturday 6th of February 2010.

The rebuild of the bogies continues, all be it slowly. Kyle and John completed the assembly of the first equalising beams and main springs assemblies. The bogie frame is almost ready to be lifted on the wheels. The centre pivot liner must be replaced and our efforts to date have only realised colourful language and frustration. Kyle and John have assured us that they will have the liner extracted at the next workday. Vince cleaned up the four horn keep plates as they will be needed when the bogie frame is lifted onto the wheels.

Malcolm cleaned down and crack tested the eight manganese liners for the second bogie. Only sixteen to go hey Malcom! These liners were completely seized against the axle boxes.

Peter Anderson, Peter Reynell and the Alan stripped down the Nathan lubrication system around the leading unit cylinders. This allowed access to the engine bed and cylinder castings. The build up of baked on cylinder oil and grime in this area is significant. This grime is up to 25 mm thick and the use of the steam cleaner made no progress with its removal. Most of the day was spent chiselling baked on cylinder oil by hand. As the lubrication components were removed they were carefully tagged and stored for eventual overhaul. Lots of home work for the project manager.

Our next workday is Sunday 21st of February.