DutchRailnut wrote:Some of them are converted doodlebugs they have diesel engines, one propulsion and one generator.
They check rail for cracks using a magnetic system that maps inside of a rail kind of like a sonogram.
Most of them are now being replaced by hi-rail trucks with same gear.
All Sperry Rail Cars are Diesel powered some were still runing on gas power up into the early 80's. Most of the cars were former Doodlebugs a few were home chop shop builds of there own I don't recall the numbers of these cars. One of these is the one used in the NYCS Subway which was a converted 1930's era bus which is still being used today. Most of the Sperry Rail Cars them selves are between 60-90+ years old When I was on the SRS 125 she was built for the Lehigh Valley Railroad in the mid 1920's now shes in the scrap heap
The lead power truck was powered by a Caterpiller 3304 Diesel engion with a top speed of 65m.p.h. All the Test equipment and 3 transformers were powerd buy a Catrpiller 3306 this was the main power for the car and all its equipment. There was also a Lambardia L34 Generator which was used for on board use which powered the lighting, and kitchen area. The L34 HAD to be turned on befor the CAT 3306 was turned off at the end of the day and Shut down 15 min after the CAT 3306 Was turned on in the morning or else the two could blow the fuses.
The car I worked on had 2 types of sound testing equipment Ultrasonic and electro-magnetic sound equipment.
The Electro-Magnetic testing serched like a side scan sonar serching for defects on the sides of the rail from the head to the web and was good for picking up cracks and pin holes. From what I can rember it was sensative but most ofton we would stop and do an ultrasonic test on it befor marking it and moveing along.
The Ultrasonic test worked like a sonar which pinged off of air bubbles in the steel its self. this would show as a high spike on the paper tape. This is how to read the tape. All tape rolls were keeped untill the testing was done on that railroad the tapes were then sent to Danbury and reviewed they mostlikley used this as proof of a defect being located in the chance that a an accdent should happen they had proof to cover there butts. This also helped in improveing new equipment as well.
Outher left side of rail head
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| |----Center head of rail
| | |-----Inner gage side of rail head
v v v
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< | | | < | arrow is defect found by elcetro mag detector, while on the outher rail a defect is located by the Ultrasonic test in side the steel.
Sperry Rail Service has operations and contracts in the U.S., Canada, Mexico, Europe, Scandnavia, and Australia. There are several outher railroads world wide that they test but there few and far between and are raeley tested. Sperry Rail will load a rail car or hy-rail truck on a ship and send it any where around the world to do a contract job on a new railroad.
Me being the new hire had the following responsabilitys below:
An avrage day started about an hour and half befor the railroad Maintaince guy got to the seen. For me I was testing CSX so I would be up by 5:30a.m. and up and dressed with in 15min. Next was to go to the frount of the car unlock the doors check the oil and start the CAT 3304. After this it was time to head to the engion room check the oil and start the CAT 3306. After this I would run out test my brushes and pads make sure that they were lifting and droping right the oil them. I would then check the paint pot if needing to fill it we put 50% Sunburst Yellow paint mixed with 20% Diesel Fuel which was taped from a spickit on the fuel tank. I would then go off to pack up the camp car signs and derails. Do a head light and horn test then help out with geting the test bed equipment set up. We used an assilia scope a 0, 30, and a 45 which looked like stethascope on a wire which could be attached and dettached. The number one oil used for conductivity on the rail for Ultrasonic Testing was simple Babe Oil! By 6:45a.m. I would then reviewr over the paper work haveing to do with daley, weekley, and monthley maintaince and prep the crew with what we would be doing later that nite. By 7:00 a.m. are CSX Maintaince guy would be on the car geting the form D to make the next move. After Testing which was about 4:00p.m. 1-2 hours of maintaince would be done on the car. After that the crew had freedome to do what ever and go where ever they pleased.