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Okay, I am stumped on this one....Tracing through the controls, matching them up with the levers up at the front of the cab, and there is a foot pedal through the floor that I can't think of a reason for!Okay, here are the items needing control from the front:1) main hoist throttle2) main hoist clutch (to engage drum)3) main hoist fwd/reverse control (stephenson link)4) main hoist brake5) swing engine throttle/fwd/reverse (all in one)6) steering engine throttle/fwd/reverse (all in one)7) crowd engine throttle/fwd/reverse (all in one) - this is out on the turntable, controlled by 2nd operator8 ) travel shaft dog clutch (to engage tracks to hoist engine)Silly website - I had to put a space after the '8' or it turned it into a smiley!That makes 7 controls from the cab running back, one out on the turntableHere is where those controls are:1) Main hoist throttle lever, hanging from roof on right2) main hoist clutch lever -up from right side of floor3) main hoist fwd/rev lever - one of 3 levers in group on floor4) main hoist brake lever - one of 3 levers in group on floor5) swing engine throttle lever - one of 3 levers in group on floor6) steering engine throttle lever, hanging from roof on left7) crowd engine lever - out on turntable8 ) travel shaft dog clutch - handle coming up through floor, pulled up and latched to engage(silly website - I had to put a space after the '8' or it turned that one into a smiley!!)Problem is, there is ALSO a pedal that is shaped like the brake pedal on a car, between the set of 3 levers and the single lever on the floor. The shaft from that pedal looks to go through the floor, and down between the frames, but it never comes out of that space anywhere that I can find in any of the photos.... I can't think of another function that would need another control, can any of you?? Don't think it had a horn or headlights, no radio or power windows... If there was a steam whistle it was stolen, the pull for that would just have been a rope from the ceiling anyway.What else would there be?? The boiler engineers would handle all the feedwater/oiling/fuel controls from the back, there is a lubricator system but that was automatic from the engines. Don't think there was a nitrous system...Any thoughts? Whoever thinks of the reason for the pedal wins a bag of mint chocolate chip cookies (may be supplied as a recipe 'kit' if not in easy mailing distance). They wouldn't do this 100+ years ago just to mess with my head, would they? Or would they...
Quote from: crueby on November 24, 2017, 11:07:27 PMOkay, I am stumped on this one....Tracing through the controls, matching them up with the levers up at the front of the cab, and there is a foot pedal through the floor that I can't think of a reason for!Okay, here are the items needing control from the front:1) main hoist throttle2) main hoist clutch (to engage drum)3) main hoist fwd/reverse control (stephenson link)4) main hoist brake5) swing engine throttle/fwd/reverse (all in one)6) steering engine throttle/fwd/reverse (all in one)7) crowd engine throttle/fwd/reverse (all in one) - this is out on the turntable, controlled by 2nd operator8 ) travel shaft dog clutch (to engage tracks to hoist engine)Silly website - I had to put a space after the '8' or it turned it into a smiley!That makes 7 controls from the cab running back, one out on the turntableHere is where those controls are:1) Main hoist throttle lever, hanging from roof on right2) main hoist clutch lever -up from right side of floor3) main hoist fwd/rev lever - one of 3 levers in group on floor4) main hoist brake lever - one of 3 levers in group on floor5) swing engine throttle lever - one of 3 levers in group on floor6) steering engine throttle lever, hanging from roof on left7) crowd engine lever - out on turntable8 ) travel shaft dog clutch - handle coming up through floor, pulled up and latched to engage(silly website - I had to put a space after the '8' or it turned that one into a smiley!!)Problem is, there is ALSO a pedal that is shaped like the brake pedal on a car, between the set of 3 levers and the single lever on the floor. The shaft from that pedal looks to go through the floor, and down between the frames, but it never comes out of that space anywhere that I can find in any of the photos.... I can't think of another function that would need another control, can any of you?? Don't think it had a horn or headlights, no radio or power windows... If there was a steam whistle it was stolen, the pull for that would just have been a rope from the ceiling anyway.What else would there be?? The boiler engineers would handle all the feedwater/oiling/fuel controls from the back, there is a lubricator system but that was automatic from the engines. Don't think there was a nitrous system...Any thoughts? Whoever thinks of the reason for the pedal wins a bag of mint chocolate chip cookies (may be supplied as a recipe 'kit' if not in easy mailing distance). They wouldn't do this 100+ years ago just to mess with my head, would they? Or would they... I'm thinking that the pedal was a quick release for the "stitterstat"...................well probably not! OK....... I wonder if it could of connected up with one of the levers and done the same thing as the lever when the operator ran out of hands?Jim
How about a control to open the door on the bucket?
Is there any sort of "parking brake" for the shovel when not operating? Possibly to release a latch or pawl.
Quote from: kvom on November 25, 2017, 12:51:37 AMIs there any sort of "parking brake" for the shovel when not operating? Possibly to release a latch or pawl.Hmm. Not that I know of, but it would be bad to come back to the quarry Monday morning and see it had rolled into the bottom of the pit! The location of the pedal is about 12 feet in front of the travel shaft, should be easy to spot a link, will double check that in case you are right.Could it be a brake pedal left over from when it was on railroad trucks? Those were usually screw actuated from a handwheel though.Hmmm, a 110,000 pound steam shovel doing a parking brake turn!
Is it possible that it is a brake set/release that has to be depressed when the leaver is moved something like the clutch on a manual gearshift?Ps If you find me on Facebook I posted my recipe for shortbread.Gerald.
Quote from: steamboatmodel on November 25, 2017, 06:19:17 PMIs it possible that it is a brake set/release that has to be depressed when the leaver is moved something like the clutch on a manual gearshift?Ps If you find me on Facebook I posted my recipe for shortbread.Gerald.Its possible. One of the other levers has the release lever on the handle part, which engages a notched rail at the bottom, but its possible that broke on one of the other levers and the pedal was added.I heard back from the director, and I'll be able to borrow the key and head out there tomorrow or monday and get more pictures to know for sure - going to take a bunch of pictures up underneath that frame bay! Also, I could use a couple more of the hoist drum brake band levers, that did not come out well from the first trip.Will let you guys know!
Quote from: crueby on November 25, 2017, 07:32:05 PMQuote from: steamboatmodel on November 25, 2017, 06:19:17 PMIs it possible that it is a brake set/release that has to be depressed when the leaver is moved something like the clutch on a manual gearshift?Ps If you find me on Facebook I posted my recipe for shortbread.Gerald.Its possible. One of the other levers has the release lever on the handle part, which engages a notched rail at the bottom, but its possible that broke on one of the other levers and the pedal was added.I heard back from the director, and I'll be able to borrow the key and head out there tomorrow or monday and get more pictures to know for sure - going to take a bunch of pictures up underneath that frame bay! Also, I could use a couple more of the hoist drum brake band levers, that did not come out well from the first trip.Will let you guys know!I can almost taste those cookies already! Jim
Hi Chris,Have you found how they do cylinder drain valves on all these engines yet? Have they automated in some way or is there a whole extra layer of controls for each engine?just wondering if the operator was supposed to keep track of draining each engine everytime they used it.All the best,Martin.