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Junkyard's work thread.....maybe haha

Junkyard

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Jun 5, 2016
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Claremore, OK
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Field Mechanic
I've seen several go a million with proper maintenance. Like anything, take care of it and with a little luck it'll last. Of course that was before emissions....
 

StanRUS

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Mar 7, 2016
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767
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Cal
660s repowered Detroit60 with Jake Brakes...8th gear just under 45mph with Cat 346 60deg
 
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old-iron-habit

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Nov 22, 2012
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Moose Lake, MN
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Retired Cons't. Supt./Hospitals
That 660 sounded awesome. They ran that same speed flat out when they were new with
the original Cat engines also. I have always been amazed at how the axles even stayed under them when bouncing over the bumps with 60 plus yards on them. I would like to know the "moment" load is that they were designed for.
 

d9gdon

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Feb 12, 2010
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1,517
Location
central texas
Those original ones would block the sun with a cloud of black smoke. I remember seeing them in action building the interstates in the late '60s and early '70s. With 2 or 3 D9G's pushing and those 660's belching smoke, it literally looked like a pile of tires were on fire...not too eco friendly in today's world. Looked neat as hell to a kid though at the time.
 

StanRUS

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Mar 7, 2016
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Cal
I wonder how well they stop?
Almost instantly when drop the scraper bowl onto the ground loaded, if empty you'll be running with apron opened exposing the cutting edge that will dig into the ground.
Operating scrapers, always keep the scraper bowl just high enough for ground clearance.

Bootlegging on surface streets, tie worn out tires underneath of the cutting edge with a cable so you can still drop the scraper bowl to stop. Brakes non-operative; backed off or completely removed.
 
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dirty4fun

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Dec 29, 2010
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1,188
Location
N. IL
I ran an old Wabco with electric toggle switch to steer. When going down the road you always held onto the hydraulic lever to drop the bowl. The steer switch seemed to quit working when you were going down the road where you needed it most. It was usually the edge of the road or in the ditch before you could drop the bowl for brakes as things happened pretty quick, when they go wrong.
 

sled dog

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Apr 6, 2014
Messages
333
Location
Hartdford City, In.
Stop good... just drop the bowl.... tends to make a divot though....
Long, long ago Flying down a haul road on a TS 24. Heap loaded with heavy wet clay. I always turned sideways in the seat and run both throttles with my left foot. The old scrapers had no lock blocks or check valves. As hard as it would run in 4th, and blowed a hoist hose. That pig stopped in a measured 17 inches. Ribs got the steering wheel and left leg the steering column. And a head to waist bath in hot hydraulic. Ahh, good times ! Man, we're havin fun now !!!
 

kshansen

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Mar 11, 2012
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Central New York, USA
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Retired Mechanic in Stone Quarry
About the only experience with scrapers I had was driving a follow car while we were transporting one across New York State. Other than forgetting the transporter plates when we went to pick it up everything was going good. It was an older Euclid or Terex machine, for get which one but it was Euclid green and had a 12V-71 Detroit engine.

Well as we were shooting through Auburn NY on the then new Route 20 by-pass we came to the rail road siding for the Alco Locomotive factory. That scrapper hit those tracks probably at close to 40 mph. Front end bounced up and then when it came down it left some major skid marks on the road. I did not understand what was going on as it continued to bounce and skid a couple more times then it pulled off the road.

We, the alternate driver and myself, got out of the pick-up and went up to ask the guy driving what the heck he was doing. He said the machine had dropped from high gear right into low gear when he hit the bump of the tracks.

After a quick check found that one of the battery cables had come off and being an electric shift Allison it had told the transmission to start over again in first gear! Cleaned the batt cable ends and reconnected and it started just fine, put in gear and seemed to move just fine. We went to MikeyDee's for supper and came back and drove it almost the rest of the way to it's new home. Had to wait over night to deliver as they were closed by the time we got there.

Next morning after being parked over night on those hot tires the driver said it was like riding a bucking bronco all the way to the plant.

And as I live only a few miles from those tracks I can recall those skid marks on the highway were very visible for over a year!
 

StanRUS

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Mar 7, 2016
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767
Location
Cal
Hey Junkyard,

Bouncy ride isn’t so bad; bigger the rubber better the ride, just like a mini-bike compared to MX cycle. Operating open ROPS machines you’ll feel a bit cooked at the end the day and everything you eat taste like diesel smoke! 3-axle scrapers don’t flip the nose around like 2-axle scrapers; little steering linkage wear and you’re continuously correcting...Cats, Euclid~Terex they’re all the same.

Example video, watch the operator’s hand. Down Ramp claimed over 120 engines due to over speeds; dropped valves, broken cranks. Only way to control speed is ‘can-down’, e.g. dragging the scraper bowl, that caused Router Bits to wear out in 2.5hrs (ran Cat system out of replacements).
 

lantraxco

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Jan 1, 2009
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7,704
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Elsewhen
Jesus.... man wouldn't want to sneeze that close to the left edge, eh? Looks like they were moving a mountain?
 

Junkyard

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Jun 5, 2016
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Claremore, OK
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Field Mechanic
Well....not having spent much time operating one I'd say they'd be putting a seat in one each time they did the bits! It's like anything, you'd get used to it and perhaps the camera makes it look worse than it is. Either way it takes some guts.
 

Junkyard

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Claremore, OK
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Tore into another rotary today. Preventative job. Checking ring gear bolts etc. They use dowels from the drive lug plate to the ring gear. Mofo's to get apart. Lots of heat and some custom made wedges (started life as 201 dirt teeth).

I snapped a few pics when I started but in all the commotion I didn't get anymore. It was crazy with two guys beating wedges in and me on the giant oxy/fuel weed burner trying not to scorch them!

Isn't it funny how stuff breaks loose about quitin time no matter when you start!

IMG_9150.JPG IMG_9152.JPG

Oh and I was misinformed about there being oil in it (eyeroll)
 

StanRUS

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Joined
Mar 7, 2016
Messages
767
Location
Cal
Tore into another rotary today. Preventative job. Checking ring gear bolts etc. They use dowels from the drive lug plate to the ring gear. Mofo's to get apart. Lots of heat and some custom made wedges (started life as 201 dirt teeth).

I snapped a few pics when I started but in all the commotion I didn't get anymore. It was crazy with two guys beating wedges in and me on the giant oxy/fuel weed burner trying not to scorch them!

Isn't it funny how stuff breaks loose about quitin time no matter when you start!

View attachment 172213 View attachment 172214

Oh and I was misinformed about there being oil in it (eyeroll)
That misinformation happen frequently; ruin cone crusher gears, 'oh we checked the oil'...yep when the unit was new!

hwy 1ton, same group(s) of 57Es, Independent and Peed. Indy's scrapers have side-boards, they're the contractor, Peed's do not they're rentals working by the hour.
 

StanRUS

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Mar 7, 2016
Messages
767
Location
Cal
So, pics of the ring gear teeth? Setting bearing pre-load: shims under cup? Curious minds want to know...
 
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