d4d

What was the application? If it was an ag crawler it could have any where from 10,000 to 30,000 hours depending on the soil conditions. If it were a dozer tractor you could likely gauge from exterior blems how it was treated.The dozer application has a much shorter undercarriage life usually. You mentioned the new undercarriage parts that should include rear sprockets also. D4D's all had hour meters in the dash so this sounds a little specious to me. If you are serious pick up oil sample bottles and a pump kit from your cat dealer and pull oil samples from both finals, rear case,clutch, and the engine then you will know as one cannot see inside these tractors. In my construction business we pulled oil samples yearly and avoided some very costly failures by catching failures early.

hi when you say undercarraige does this mean tracks idlers etc or is it the chassis that wears out??

ok so i just went to look at it..it runs well but burns a "bit" of oil...also the steering brakes screech & squeal loudly and the turn action is grabby [owner says its from sitting] what do you think ,worn out brake bands ?..and the tracks are worn & dont fit the sprockets nice they are floppy..so what do you think its worth its in australia...been out in the weather as well...any thoughts would be appreciated

Im pretty sure there was an early series and a later series D4D the earlier ones had a weaker back end I dont know what the serial number changes were someone on here will chime in soon give a more accurate details than I can

Some photo's would help with trying to give a opinion on what its worth some close pictures of the walking gear tracks sprockets rollers ect with these older machines if the walking gear needs to be replaced it would cost more than the whole machine is worth things to consider

Paul

I've looked at a few and the prices range from 12500 to 28000 for a good one - but everyone needed work. They are a good machine but Tassie owners usually drive them to death. I think you would need to be buying this machine at 10k or less to allow for some major repairs, eg., engine rebuild and tracks etc.

As a guide a neighbour bought a D4D 'bargain' for 12k and proceeded to re-build the engine, the final drives, the clutch, the steering clutches and replaced the sprockets and tracks and chains (2nd hand) and a couple of rollers and seals and a rough re-paint and he LOST money on it. He was asking 30k but ended up selling it for less than 25k.

[quote="Inter674"]I've looked at a few and the prices range from 12500 to 28000 for a good one - but everyone needed work. They are a good machine but Tassie owners usually drive them to death. I think you would need to be buying this machine at 10k or less to allow for some major repairs, eg., engine rebuild and tracks etc.

As a guide a neighbour bought a D4D 'bargain' for 12k and proceeded to re-build the engine, the final drives, the clutch, the steering clutches and replaced the sprockets and tracks and chains (2nd hand) and a couple of rollers and seals and a rough re-paint and he LOST money on it. He was asking 30k but ended up selling it for less than 25k.[/quote]

I reckon I could live with putting a bit of oil in it but the violent grabby squeeling steering worries me plus the tracks are stretched &floppy ....im not going to work it that hard but I don't fancy spending all my time &money fixing it....im thinking 10k would be fair

If the brakes don't just glide smooth and grab all at once I would be checking to see if the brake drums are loose on the splines at the final pinions, this is pretty common. Charlie

they definately grab all at once &make a horrible squeeling noise----how hard is this to fix ?----im thinking that with all the issues it has maybe to look for a better one..he wants 20k for it

Put some operating time on the brakes. Enough to knock the rust off the drums. Brake squealing is not necessarily a bad thing. Now if the pedals pulse when braking that's another issue.