A 1472 day inspection is not just look at the boiler... (and not just about the boiler) you start by stripping the jacket, the lagging, and all accessories... You remove the superheater elements and flues...
Only then do you inspect the boiler... including thickness tests, the stay bolts, the braces and all elements... Being a much older boiler 497 may have a crown bar braced crown sheet... so more to inspect... you will likely hydro the superheater header and elements and the dry pipe... Expect the FRA to be there to observe...
That inspection, and a "form 4" will dictate what repairs need to be made... how much of the fire box needs to be renewed, how many stay bolts need replacement. Once those repairs are made you can replace the flues, superheater flues (much larger and likely buted... (tapered).. install the superheater elements... then hydro under FRA supervision.
At the same time the FRA expects a full running gear inspection... and good railroad practice says you rebuild the running gear as needed. So, things like crown brasses, driver tires, springs and rigging, brake rigging... You have to inspect the tender draw bar... check the clearances on the tender center plates, inspect all wheel sets... You inspect and renew the rod bearings... the cross head, the cylinders and valves, replacing rings, honing or boring as needed. Check and repair the valve gear...
Remembering that the boiler is over 100 years old, and the running gear is over 80 years old you will find issues...
Then you can address issues like the cab and tender cistern (the tender is over 100 years old too).... and all accessories... compressor, turbo generator, injectors, check valves, lubricators, throttle, reverse gear all the valves... Address the brake system... (all components need current test dates) the automatic and independent brake valves, any equalizing valves, the tender triple valve (likely a type F... discontinued by Westinghouse in the late 1880's, no longer supported, you will have fun finding someone who can service and
test it)
Now... replace boiler lagging, boiler jacket, and all the accessories you removed... paint the locomotive...
The additional locomotive needs regular inspections (annual) and washouts (30 some days) and a new 1472 in about 15 years even if you never fire the loco...
Assume everything listed cost more than $1000.... many are many times that...
without labor this is a near million dollar project....
On the plus side... this is a known locomotive design, so things like the boiler have been drawn in recent times, so you know how it is "supposed" to be...
Finally, once rebuilt, how will this locomotive contribute to the financial success of the railroad... much less repay the costs associated with its rebuilding?
Randy
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