Just a couple pics of our 611 converted we pull it with a D6T it works pretty well but here in Iowa our sticky clay dosent unload worth a darn. The mud on the side is from stream channel clean out we haul slop out and back haul dry clay to pack back in
We've got the same problems with our soil here, rubber tired scrapers or buggies need to be pushed with cats so a lot of outfits just keep the old cable scrapers going with D8's pulling and often convert them to hydraulic. Did you guys buy the scraper without the tractor or was that a shop conversion?
He bought this scraper off of holmes welding just south of Waterloo Ia He buyes the left over scrapers that have been converted to water wagons. They do all the conversion work and do a very quality job of it. Last time I was up there they had a cat 660 scraper mounted to a cat 740 artic they removed the lift cylinders on the scraper and replaced them with solid links they top load the scraper with excavators and just use them as a ejector box. Does anyone have any good ideas to get wet slabs of clay to unload any better. seams like they hang up on the top of the gate and wont let anything fall out without opening and closeing the gate 3 or 4 times. I found a thin layer of clay on our borrow area the other day thad had some sand in it thought I was in SoCal for a while but as I said it was thin and within a few hours I was back to the wet sticky crap that you have to fight to unload.
Open your apron wider while loading and take smaller cuts. When dumping back the ejector off a little bit when dumping and then bounce the bowl up and down. As the bowl goes up the clearance between the edges and the bottom of the apron gets smaller. Another good trick is dumping off the edge of a pile in the lowest gear possible, the idea is to get the edge you are dumping off as steep as possible so gravity helps roll the nuggets out. This only works if your fill allows you to build an edge like that. If you still can't get it out then you have to come to a stop and jam the bowl into the ground to get that extra bit of clearance to get it to drop out. I find that taking shallower cuts and leaving the apron open wider usually fixes most of the problem, and taking a slightly smaller load (trust me the little bit less dirt will save you way more time in the fill and is well worth it) will almost completely fix the problem. Being very careful dumping (dont pull the ejector anymore until dirt falls out, and the second it stops coming out back it off then pull it forward again) so you don't mash all the dirt into one big lump against the apron will fix the rest. Edit: If you're going to be hauling nothing but gumbo for a while you can add another hole where the apron linkage hooks on to the front of the apron. Top hole for dry (allows apron to fully close but less clearance when fully open) and bottom hole to gain more clearance when fully open but due to cylinder travel will NOT fully close (wet material won't fall out but you'll have to move the pin back to the top if you want to haul dry).
I find if your picking up muddy crap best to take a shallow cut smaller load jams up less and can come out easier
When I was a kid... 35 years ago. Dad had a D9G set up to pull a 491? pull scraper just for mud, or short steep hauls. I remember spending quite a few hours on "slowcat" as I called the old dinosaur. But that thing could sure make a deep cut falling over a steep edge.