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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Track Wear

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Uncle

05-02-2006 19:14:39

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I read an earlier post about costing about $20/hr of dozer use to pay for the undercarriage.
Is this right? How many hours can you get out of a set of tracks/under carriage?
I have fixed a bunch and even owned a few but I never really thought about the life span.
Brian

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New rails

05-06-2006 15:18:13

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Re: Track Wear in reply to Uncle, 05-02-2006 19:14:39

I put on a new set of rails 8 years ago. I have put on 900 hours so far. I measure them every year to find out how long I can expect them to last. To date there is less than 1/16th of an inch gone. This in clay soil. So I think they will last as long as I have the dozer. Well worth the purchase of new rails.

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seann

05-02-2006 19:46:12

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Re: Track Wear in reply to Uncle, 05-02-2006 19:14:39

I think it depends on a lot of things. The size of the machine is the biggest factor, then comes the wear rate which is determined by the type of service it is put in. Rocky sandy stuff will eat everything up quicker than clay and silt. Plus if you pay the dealer to install the UC for you instead of putting it on yourself, obviously that would impact the price/hr as well.

But from what I've heard an undercarriage for a medium sized dozer (like a TD9 for instance) should last at least a 1000 hours under normal/average conditions. A 1000 hours at $20/hr works out to $20,000. That seems a bit high to me, my guess is that it wouldn't take quite that much money to replace the U/C for a medium classed machine of TD9 size (unless it's all original Cat dealer parts!). Plus, I seriously doubt that every single component is going to need replacement at 1000 hours (as long as it has been properly maintained). The average total life of a complete U/C under average conditions is probably on the order of 1500 hours or so for everything to wear out completely. And at that rate you would get $30,000 at $20/hr, which should be well in excess of of what it would cost to replace a TD9 size U/C (as far as I know anyway).

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RodInNS

05-09-2006 19:04:28

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Re: Track Wear in reply to seann, 05-02-2006 19:46:12

I would definitely agree that the costs and wear rates depend on many factors. My D4H needed chains at ~2500 hours. Grouser bars and idlers were done at ~34-3500 hours, and the bottom rollers rotated around, but are still basically finished. I would say a complete new U/C for that machine, through Cat, would be over 20 grand. However, the grouser bars can be built up and the idlers sent out for radius welding, so that cuts out a pile of money, and extends the service life of those components. I think 10 bucks an hour for carriadge related parts would be high enough for now.... but prices aren't going down. Again, that depends on whether the machine is in a quarry or a bog. Rock is hard on under carriadges.

Rod

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