Like most aspects of our 21st century lives, railroads have found ways to mechanize tasks that once to require back-breaking labor. Tie replacement is one such task.
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The Union Pacific Railroad has a track-mounted machine called the TKO. After specialized track machines remove the spikes, the TKO travels down the rail, removing ties marked for replacement.
"Clamps grasp the railheads and hydraulic jacks push off the ground, lifting the rails from the ties," explained Dan's Depot: The Coast Line in Union Pacific maintenance-of-way gallery. "Then the hydraulic arm grabs the old tie and pulls it straight out, leaving it alongside the tracks."
Following the TKO are other speicialized machines that lift the track that allow workers to insert tie plates. Then spiking machines come a long, "rattling away like machine-guns."
"Oh, just in case you were wondering, we replace an average of 2,700 ties per day! The record is 5,000!" a UP worker told Amtrak conductor and student engineer Dan Klitzing in 1998.
I doubt the El Dorado Western Railway will acquire a TKO tie replacement machine any time soon.
And 2,700 ties per day? We pat ourselves on the back when we replace five in a day (our current record)!
The EDWR handles tie replacement the old fashion way, with lots of "back work!"
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