SP2479 Update - Saturday, May 26, 2012
Nice size crew today.
With the restoration site being in a highly visible area, appearance is
important. Today a group of workers trimmed trees of low branches passing
threw the fence. Removal of these branches also helps with site security.
Although the lawn tractor does not see heavy use, performing preventative
maintenance on the machine is a necessity. A number of items were
addressed needed to help extend its life.
The locomotive's boiler is beginning to show weathering. Wire wheeling
and painting of the boiler has begun and will continue for many more
The real good news is the fourth and final hole in the center area of the
new aux dome cover has been threaded! The new cover was removed from
the Le Blonde lathe and returned to the restoration site for remaining
All twenty studs needed to mount the new cover have been machined.
Five of the studs were set into place.
Status Update - May 6, 2012
The majority of today's steam crew spent the day working at the
trolley barn. Two members worked at returning the barn's Clark
forklift to a serviceable state . This machine has not run for several
years. The battery required extended charging and a multitude of
ignition issues were repaired. By days end, the forklift was
Progress has been made with the new aux dome cover. Holes
for the two safeties, valve and whistle were bored to an optimum
diameter during the week. Today the gasket seating surface was
machined flat on the Le Blond lathe.
Next came the big test. Could the lathe turn the heavy plate offset
five inches from center without counter weights being attached? The
first of two safety holes was centered and the machine powered on.
There was no noticeable difference in rotational rate of the chuck
Tapering and threading of the hole began. By secure time, the first
of four holes was complete. A significant step forward.
At the locomotive restoration site, several other tasks were underway.
Components to provide tender water level to the cab crew were
being manufactured. Nice weather requires weekly grass and weed
SP2479 Aux Dome Update - April 28, 2012
Threading of second hole in test plate was successfully completed.
A machining plan has been created for the aux dome blank. Four
holes to be threaded in blank were located. Boring of these holes
will begin this week.
Progress has slowed. Upon receipt of the aux dome cover blank, it was decided to
practice machining with a piece of scrap plate. A suitable plate was prepared and a
number of small holes bored.
Biggest concern is threading holes for the three inch safeties. Finished holes
will be approximately four inches in diameter with an 8 pitch thread. CRTC's only
machine capable of this work is the Leblond lathe located in the trolley barn.
This machine has not been used in a number of years. It required cleanup and
lubrication. During this process several deficiencies were noted. A piece of the taper
attachment was missing and was constructed. The biggest concern is wear in
machine parts. It was noted that there was a near half turn revolution of the crossfeed
handle. The lead screw was removed and inspect. Both the lead screw and nut are
heavily worn. The compound feed is also very loose.
Obviously destroying a four hundred dollar part is not on the task list. Currnet condition of
the lathe is a major concern but we are not ready to give up. Next Saturday the test plate
will be mounted. An attempt at boring and threading of the first large hole will begin. Upon
completion a look at direction will be taken.
Weeks of cleaning, fixing and understanding the trolley barn's Leblond lathe
has paid off! Yesterday, 2479's master mechanic tapered and threaded a four
inch hole in the test plate! A cap was set into the hole to prove the work.
With the first hole complete, the test plate was repositioned. This hole will
also be tapered and threaded for added experience.
In image, note plate off-set from chuck center. The lowest rotational speed of
the chuck was being used. This plate weighs less than half that of the new
cover. The task is looking much more do able on this lathe but there is still
a question as to the lathe being able to turn the heavy part off center.
Saturday work crews continue to be very small. The remainder of the crew
has been working at site appearance. Rain followed by sunny, warm
temperatures have kicked grass and weed growth into high gear. Keeping
the storage areas clear of tall weeds is difficult and time consuming.
SP2479 - Sat. March 3, 2012
The blank for the new aux dome cover was received during this past week. The diameter
of the piece is slightly less than 20 1/2". And it is 2 inches thick. In the attached image,
a nut that is 7/8" tall was placed on top of the plate to give a sense of size.
Dealing with the blank for the new aux dome cover was the focus of this past
Saturday's session. Boring of holes in this cover for the safeties and other objects
will present a significant challenge.
The safeties, whistle and vent valve were mounted on the old cover to verify clearances.
Holes for each of these objects may be relocated slightly.
Prior to cutting into a $400.00 piece of steel, we will experiment on a piece of scrap
plate. A one inch piece of material was located, cut and cleaned.
The trolley barn's big LeBlond lathe is the only CTRC machine capable of performing
this work. The lathe was examined for tooling. It appears that there is a piece missing
for the taper attachment but should be easy to fabricate. Only if we are successful with
the piece of scrap plate will work will begin on the blank, otherwise services of a machine
shop will be necessary for the large holes.
Aux Dome Cover - Feb 24, 2012
This past week I have spent a bunch of time on the phone attempting to locate a
piece of material suitable for a new aux dome cover. Each distributor I called pointed
me down the road.
I Ended up getting quotes from two shops. One in Stockton and another in West
Sacramento. With approval and a very kind donation from Rod Diridon, today the blank
for the cover was ordered
The piece will be flame cut to about 20 1/2 inches. It is 2 inches thick, will have
material certs and heat treat numbers. The piece is going to weigh in near 225 pounds.
Delivery could be as early as this coming Wednesday to the trolley barn. I hope to meet
the truck and immediately deliver to the work site.
This will be the beginning of a multi-step machining process. Mounting bolt holes should
not be difficult. Cutting the 3 inch holes for the safeties is going to be a challenge.
Holes for the whistle and valve are just a bit easier.
Several years ago, I was informed that changes were coming to cover calculations in
the Form 4. When complete, there will be no issues with aux dome cover thickness
and the Form 4.
Next week I will work at getting material for the 20 new aux dome studs.
Over the next weeks (months?) there is going to be a bunch of work.
Ballasting of the 90 some feet of panel track that SP1215 rests was completed today. The site is now ready to receive the Missouri Pacific caboose. See attached image.
Thank you to Reed and Graham for the 17 yards of ballast. Thank you to Robert Pederson, AtoolShed for the use of a dump truck and loader.
To Ken M. and Steve R., thanks for relocating the rock to San Jose History Park. The guys that worked
the shovels another big thanks. I had figured at least three full days of work to complete this task. Larry,
Steve, Gene, and Tom completed the job in one and one half days. Tamping ballast under ties is miserable
work. Shoveling stone is right up there with tamping. We all knew what need to be done and made it
SP2479 - Sat. Jan 21, 2012
Several things to report.
Over the past couple of weeks, a very detailed analysis of the steam dome cover was completed.
This cover, with out any doubt, is not serviceable. Bot the steam dome and aux dome covers are
to thin to be returned to service. Material and specs for new covers have been forwarded to Jack
and Ken so that quotes may be obtained and new covers created. All 20 studs in the aux dome
and 24 studs in the steam dome will have to be replaced. There will be lots of work here!
The cross head for the right steam distribution cylinder has been closely examined. One side
of the cross head lacks bronze. Next week an attempt will be made to braze the surface.
A big thank you to Larry M. for donating his old PC. The site now has a Dell system running
Windows XP. All CTRC files on the old machine have been moved to this new system.
SP2479 - Sat. Jan 7, 2012
Repairs to 2479's crossheads and guides are complete!
Work began on the left side guides and crosshead Oct. 15, 2011. A different
set of issues were encountered but were quickly overcome. The guides did
not require any repairs. All holes were reasonably round and the cylinder end
of the guides did not require weld repair. Only four of the eight mounting bolts
had to be replaced. Babbitting of the crosshead was the major issue and
required the most time.
Prior to the close of 2011, the crosshead was installed and found to be
binding at both end limits of travel. Close inspection revealed the lower guide
to be the problem. The lower guide was ever so slightly bowed up at the
tail end. Belt sanding of the last five inches of the guide provided the necessary
Binding at the front limits was a function of the upper guide being to wide for the
crosshead. Again belt sanding was used to remove a material from the sides
of the guide. The left crosshead now slides freely within its limits of travel.
Today the left cylinder cover was installed to protect the cylinder from rain and
other sources of potential damage.
Next in line are the traming of the steam distribution valve crossheads. The biggest
problem here is the need for the new cage for the front end of the left cylinder.
Today the left crosshead was returned to the locomotive. With the crosshead
in place, bolts were installed in the lower guide. All of the news is not good.
The crosshead was found to be pinched tight when full forward. A .025 inch shim
was added at the front upper hanger to free the crosshead. When the crosshead
was pulled to back to end of travel, a similar situation was encountered.
Measurements show the upper and lower guides being within .005 inch at the two
points that have been used to establish guide positions. Neither guide is perfectly flat. The upper guide has a very slight arc to it. Solution to the problem will be identified after the first of the year.
There will be no work session Saturday, Dec 31, 2011
SP2479 - Update Oct. 8, 2011
This past week, on two occasions, the fence along Healey Ave. was cut.
There was no apparent attempt to break into any of the containers nor any graffiti applied.
A walk along the entire site fence showed no other damage.
Cuts in the fence occurred under a tree that probably provided some cover.
Today several workers heavily pruned this tree.
A good portion of the trimmings were removed.
Hopefully this work will help discourage this activity.
Fairgrounds management was informed.
Night security will now patrol the area on Healey Ave.
Work has continued on repairs to the right side crosshead guides.
All holes have been bored and bolts machined.
Measurements between the guides appear to be within acceptable limits.
When 2479's master mechanic returns from vacation, he will make
the final decision regarding any additional work in this area.
Measurements of the position of the left crosshead guides to the stroke of the piston
have been completed.
These guides will also require repositioning.
With any luck, the
process that has been learned on the right side will allow these repairs to be completed
in a shorter time frame.
The locomotive and tender have been not been moved in almost two years.
There has been some concern about journal surfaces.
Over the past several weeks the exposed journal surfaces on the locomotive were cleaned and lubricated.
Journal oil levels were checked on the tender and locomotive lead truck.
Today the tender was pulled forward an back several times one full wheel revolution.
The tender resisted the pull on first move.
All other moves were completed with almost no effort.
In the next several weeks the same operation will be performed with the locomotive.
<< Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>
Page 4 of 12