Push Gathers Steam to Restore a Historic Loco
J515 Updates from the Seymour Railway Heritage Centre
Rare Arnott's biscuit van restored
With the virus keeping many away for the depot of late, some things have slowed down. But for locos and their needs for maintenance and other attention, the needs are ongoing particularly with the S and X both of which are earning a keep in hauling freight trains.
Both the S & X have been in bits of late receiving different attention of which more as we go through the photos.
And down in the turntable shed, CLF1 is being transformed from a ghost into; well we are not at liberty to say. It's like those television programs where you have to wait for the big reveal at the end.
The line up of locos we presented a couple of weeks ago has continued to attract interest with more than one railway employee passing by pausing to take a picture.
So here is another angle from a different one of our own photographers. In coming weeks, completion of current works will mean the locos will be shuffled again as other go into the shed and others come out to play in the sun._______________________________________________________________
CJL, also known as S303 C J Latrobe is waiting for his turn in the shed. What you might notice in this shot is the big ding in the cowcatcher. We just have not got around to jacking this out. It has been there for something like 35 years (more than half his life) so in some ways it is like a blemish on the face. You get used to it and don't notice and one day after mustering the courage to see the doctor, you decide to remove it. We're not at that point just yet!____________________________________________________________
While the S is outside, X31 is in the shed is receiving love and attention.
X31 has its air compressor and main generator in bits. The air compressor is leaking oil and the generator has been contaminated by that oil. This is a view of the generator left centre, air compressor centre from the drivers side of the loco looking towards the long end.______________________________________________________________
Same side of the loco but looking the other way shows the main electrical cabinet engine room side. Across the top are various resistors and contactors. Under that across the full width of the cabinet are the reversing and braking contactors and under that the are the grey coloured arc chutes of the parallel and series power contactors. All this gear is normally behind removable doors.
The tasks on X31 are nearly completed so early next week it should be ready for more action.____________________________________________________________
With the work on the X nearly complete, CJL was brought into the shed for his turn. His problem is quite different in that when the engine revs drop back as the throttle is decreased, there is a rattle in the engine. After changing out the oil and water pumps the noise was still apparent and could now be determined to be coming from the vicinity of the harmonic balancer and accessory drive gear at the front of the engine.
So now for the picture. With the front of the engine on the left hand side, the governor is upper, the oil pressure pump under and that's James crouching down undoing the oil scavenging pump in front of him._______________________________________________________________
With James extracted, is can be seen there is not a huge amount of room inn here with the engine to the left and the plumbing stack to the right.
Looking from the other side, James is now juggling one end of the governor while Colin is assisting by drawing it out to the gangway.
The governor has been lugged out of the engine area and is now in the back of the loco by the battery box before being taken out the back door.
With the governor out of the way Quentin and James are about to remove the right hand side water pump.
Back to the other side again and now all the pumps and the oil suction box have been removed from the accessory drive housing. The holes indicate where all the appendages were mounted. The next task is to remove the housing to expose the harmonic balancer and accessory drive gear along with the governor idler gear._____________________________________________________________
Out the back of the loco is a table of bits removed and behind that a pallet of more bits. There is also a pallet of steam loco bits along with a diesel alternator with P23 in the background.___________________________________________________________
Now we have a few shots of the accessory drive gear exposed on the bench. The gear is in two main parts in that the gear ring and centre hub are separate yet connected by spring fingers. This is to provide some resilience between hub and ring to absorb shocks associated with the load of the oil and water pumps. The spring fingers can be seen to have sheared at the junction between the hub and ring._____________________________________________________________
With the ring and hub separated we end up with a pile of broken spring leaves on the bench. The socket ratchet handle above gives an idea of the size.
This particular arrangement is the so called old style. The current version uses a coil spring arrangement which was adopted over 40 years ago. That means the gear in S303 has been there for a long time.
Fortunately we don't have to worry about finding the right type of obsolete spring leaves to reassemble this gear as we have two very serviceable new type spares inn the store. So as you read this blog, the engine is now being reassembled.
All being well, S303 should also be finished mid next week and return to service with it's younger cousin X31.
That's it for the moment.
Next time we will have the reveal of CLF1 amongst other things.
This article first appeared on srhcblog.blogspot.com
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