Won't be the first time I've been proved wrong, most likely won't be the last.........
Won't be the first time I've been proved wrong, most likely won't be the last.........
How did I become a pessimist ..? Well I started off years ago as an optimist but now I have practical experience .........!!
Depends what odds you are offering. What odds would you give me Unit Rigs will be Cat powered soon?Originally Posted by 793F AC Drive
What are the ODDS that CAT will "Teir 2" the 3516 HD.......
I though 3500 would be dead in the water after the C-175 was released......now I believe they will be still developing them in 10 years time....ACERT fuel system, DPF???
3500 is still well alive and kicking AFAIK, even though it's allegedly yesterday's technology. Don't just think machine engines, think industrials & gensets as well. Machine engines will be but a small fraction of 3500 sales.
How did I become a pessimist ..? Well I started off years ago as an optimist but now I have practical experience .........!!
I'd say odds on both are very good.
OK, a question. What going to be the preferred method of getting a 793F truck equipped with electric drive back to a minimum of "240-ton class" (218 metric tonnes) payload, Ultra-light bodies..? With the electric drive I'm sure that the empty weight of the truck will increase by about 15 tons.
How did I become a pessimist ..? Well I started off years ago as an optimist but now I have practical experience .........!!
I can't speak to the details of the strategy, but the current FF unit is running a standard coal body, and it will easily hold the target payload. I have also seen overloads of up to 297 tons.
That's fine talking about a coal body, I can remember the first 797 coal bodies and they were monsters. What about one for rock ....? I take it the FF unit must be up in Powder River somewhere..?
How did I become a pessimist ..? Well I started off years ago as an optimist but now I have practical experience .........!!
I better get a few bucks on it then!! Will be interesting to see how they diet the 793F AC. It is clear from the first attempt you can,t just take a MD chassis and electrify it, needs more homework than that. Personally i think the 3500 getting a new lease of life with Tier upgrades has come about with the purchase of Bucyrus giving Cat a big population of trucks they can offer retrofit upgrades to and then the averagedebut of the C175 so they don,t want to muck up bread and butter model trucks like the 785 & 789 with the C175 so they then can benefit from Tier upgraded 3500.
The 3500 will go a long way yet and it,s a pretty good deal for an engine 30+ years old in design.
Rock body just hit the dirt last week, and is using a standard body with great results as well. As far as the location, good Guess Nige. I guess this isn't your first rodeo.........
Last edited by 793F AC Drive; 05-01-2012 at 10:35 AM.
Coming up to 40 years, man & boy. Most of it around big yellow iron. So I guess you can say it isn't my first rodeo. I've got to the point now where I'm thinking of making a career of it ......
Last time I was up there was a while ago, Black Thunder to be exact. We were tearing down some 793C ex-rental units that went way South from there. December it was, and fcukin' cold.
Last edited by Nige; 05-01-2012 at 12:45 PM.
How did I become a pessimist ..? Well I started off years ago as an optimist but now I have practical experience .........!!
I have seen a photo of a 3500 in Cat lab test cell complete with common rail fuel system fitted up. The high pressure fuel pump (HPFP) looked like the current Woodward HPFP used on C175 engines.
The 3500 was called 3500 NGCR ( Next generation common rail).
Its interesting to consider the reason for hanging in there with 3500 given the C175 is very similar displacement and were always explained / introduced as the replacement for the 3500 platform.
Perhaps the economics of shutting down that production capability when there will be increased demand ( Bucyrus and global mining expansion ) for this sized engines platform dictated this.
Do you have any info on the 793F FCV failures / problem ......were they engine cranks but wont start issues? Also the tranny clutch seal - was it identified by trans low oil level alarm coming on as I made mention in previous thread?
793F tranmission hyd controls are ECPC not ICM......its all done with ET and excess clutch piston seal leakage is confirmed when the ET automated transmission fill test aborts on a particular clutch.
This is kind of not on topic, but could anyone tell me how many yard loader a 793 is? The job I am on we used a 793 with forks to move a large steel assembly that weighs close to 20,000 LB's, made the rear wheels kind of light. I think it is a 5 yard machine, am I right?
Last edited by orville; 05-15-2012 at 09:56 PM.
There is not a machine
made you can't tear up
if you try hard enough.
793 is a 240 ton capacity Cat dump truck, well at least the one we are talking about here is.
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