System one undercarriage.

Yair . . . there is an old thread on here about System one, last post 2007, so how is it shaping up? . . . I saw one reference to original components being assembled in a 'clean room' and thought, "Really? this is just a track".

Cheers.

"Really? this is just a track''

D6r 4000hr no dry links no replaced components.

seems like it might be alright.

Interesting to note that Cat have no plans whatsoever to introduce it on larger machines. Let's face it basically it's an oversized roller chain and roller chains work better when they're lubricated, and that's never going to happen on a track chain.

They are are actually now System One -Generation Two,upgraded twice since they came out.

I'm not a fan rougher ride on dry hard ground.They don't like slopes or side wear, and the ride is choppy when going up and down slopes pushing up narrow base farm terraces.

The track bushing are suppose to turn as they pass over the idle which is narrow and doesn't support the weight of the blade on the rails like the old rails.All the weight of the blade is running on the bushing and the idlers when the front of the machine is going up and down the baclslopes of the terrace.Making the ride choppy.

They came out in 2006,as an option,but has become standard over time.If i knew what i do know i would have removed the extra scrapper and guards and went back to the old style heavy duty tracks.Which they now have a extra heavy duty track because of issue of system one tracks in this area.

There are places they are doing fine supposly.Bushing wear not a big issue here because of clay and blackdirt,compared to the sandier soils other places.Hardly ever wear out the bushing here before dry pins and rail high take them.Never turn bushing here,just run them out.

D6R III has 6500 hours and is on its 3rd set of tracks. Cat warrantied the first 2 sets.

First two sets were Sys1 gen 1. This set is Sys1 Gen 2.

Machine spent most of its time on rent in Alberta, likely doing drill pad roads and the like. Not really sure, I wasn't there.


Ken

Construct'O said:

They came out in 2006,as an option,but has become standard over time.If i knew what i do know i would have removed the extra scrapper and guards and went back to the old style heavy duty tracks.Which they now have a extra heavy duty track because of issue of system one tracks in this area.

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For a biref period there was nothing other than System One available ex-factory on new machines. After howls of pain from customers and dealers alike Cat introduced a "heavy duty" track option which is a good old tried-and-tested SALT chain.

I can see System One tracks going the way of the HEUI engine and the dodo ..........

Yair . . . Thanks Nige. This old dodo appreciates your real world insights . . . and yeah Heavy Metal I reckon 'clean room' technology may be okay for fuel system and hydraulics, but give us a break, not for tracks.

Cheers.

I ran a D8T with it and it road rough. When backing up and turning felt as though tracks wanted to growl of front idlers, all four idles looked like a toothed wheel, around 3500 hours, already had links replaced, split behind bushings. Only one I've seen.

Rumor has it that the HD undercarriage will again be standard on new machines. System one will be an option. I have NOT had confirmation from a Cat rep. on this.

System-one had a rough introduction here and has never recovered from it, many machines have been converted and those not is usually still covered by some type of warranty or dealer promises of goodwill coverage.

On a personal note as a has been mechanic I absolutely hate the stupid **** who dreamed up the CAT special tooling for pressing the links. I would like to show him what I'd put in that contraption and press.....:soapbox

I have converted around 30 D6N,R, and T models. The problem is I haven't found a way to convert any of the K models. If anyone has any insight on this it would be much appreciated. I just finished a complete undercarriage replacement on a D3K LGP and had to put system one back on it.:beatsme
Thanks, QuickTrax

Are there no good news stories around for System ONE? CAT must have done at least some testing before jumping on this sinking ship?



Ken

They didn't on the HEUI engine, the 992G monobox boom, the first ultra-light mining truck bodies, or the M-Series graders. What makes you think undercarriage should be exempt from the "development" process..?

The failure in the system occurs from the shock loads that happen when the track skips in reverse and in a bind.

Need to make a dozer bulletproof not just wear resistant.

Heavey Metal said:

The failure in the system occurs from the shock loads that happen when the track skips in reverse and in a bind.

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Do you mean the recoil system on SystemOne doesn't work right, because the symptom you're describing is exactly what it's supposed to stop from happening..?

When you back up with the tracks in a bind(like when you are stuck) the track will actually roll up out of the sprocket and than catch on the next tooth.

Sounds like a machine gun going off.

Sprocket is turning and track is slipping.(even with all parts in good repair)

If they keep trying to get out bad things happen to track and final drive.

Heavey Metal said:

D6r 4000hr no dry links no replaced components.

seems like it might be alright.

Click to expand...

From all the other replies (including some of yours) it seems as though you're in a majority of one.

Our dealer PSSR tried to encourage us to take 2 x D8T rentals with SystemOne. He got shown the door tout de suite and told not to let it hit him in the a$$ as he left.

System One seems okay on smaller machines in my experience. There were several options of roller and idler pattern, IMHO the narrow idler with serrations gives a damn awful ride, but the conventional shouldered idler rides like SALT. Anything bigger than a 6N, I wouldn't touch it, but on the smaller machines it survives. I've heard that on tracked loaders on landfill applications it outlasts SALT nearly 2 to1. To touch on Scrub's point, I expect cleanliness requirements for assembling S1 and SALT are pretty much the same.

Had three D9's on our plant site last summer(don't know series just high track), sounded like a scrap iron breaker when they backed up with all the hammering, I later found they had System 1 rails, the contractor has since swapped them for HD rails from Cat and under warranty. Operators complained of muscle and head aches after running these machines just a few days.

Yair . . . Thanks for all the responses. To further my education . . . what happens in the real world with SALT in the field with a couple of leaky bushes gone dry.

From what I've heard it compromises the life of the chain, they will wear out fast but yet you need special gear to fix them.

Can you still buy conventional dry track? I have asked before but could you use a SALT track machine for stoking fires?

Cheers.