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87 model Ford 2810 with 7410 loader. 3 Point still works fine. Have already replaced filter and checked fluid level. Loader lift has gotten slower each time I use it for past 5 times or so and now has almost stopped lifting and rolling in. It still drops and rolls out/dumps. When I replaced...

I'm looking for a crankshaft for my Komatsu D31S-16, sn 26253. The engine model is 4D105-3, pn is 63HP2350, sn is 44393. I think the crankshaft pn is 6131-32-1101. I know that Frontier Parts does not have one and I know a new crankshaft is about $7500 so I am not interested in a new one. I have...

I have a Model 4D105-3 motor in my Komatsu D31S-16. The motor part number is, 63HP2350, sn 44393. Does anyone have the part numbers for crankshaft rod piston

I was repositioning to finish off a tree and trying to figure out a sound that had just started when suddenly there was engine smoke every where. I shut it down and grabbed the fire extinguisher and hopped down. Fresh oil was coating the engine and I think it was coming out of the breather. I...

I feel like this is a really stupid question but wanted to ask anyway. For the past 2 weeks we have been getting rain, but I have not stopped clearing trees except shortly during downpours. Actually, I only get about 6 hours seat time a day on Saturdays, Sundays, and Wednesdays. My entire...

I have noticed a milky looking substance in the pinion case oil recently that is separated from the oil on my Komatsu D31S-16. I'm curious if it could be moisture related since I have been clearing trees in a wet/ slightly muddy area lately and my rear seal leaks about 2 quarts every 8 hours of...

I need to learn more about this topic. My Komatsu D31 track loader I bought in January (1978 model) does not have any dips on the top of the left track like the right side does (i.e left track is tighter). But then I'm not sure how tight the track should be. How do I figure this out. The...

I've had it for 2 months and only get to mess with it a few hours a week right now so its taking me awhile to learn all the the stuff on it. Its a 78 model with power shift tranny. I keep saying I'll get the manuals next week. Anyway, on my Ford tractor the hydrolic fluid and tranny fluid are...

Does anyone know what this electrical device with the disconnected wires on the fuel line is? A fuel heater maybe? I just bought this Komatsu D31S-16 (1978 model). It runs great but I'd like to know what this device is. http://i20.photobucket.com/albums/b249/dcara/75-DSCF0652.jpg Thanks Doug

My photo is 703kB in size which exceeds the 500kB limit I read about. I believe this is why I am getting an error when I try to upload it. Is there another way to upload it or should I upload it to Photo Bucket and then providing a link to it?

Hi folks. I just joined this forum after finally getting my first machine (a Komatsu D31S-16 track loader, 1978 model). Its a small machine at only about 14000 lbs but I think it will do what I need done which is land clearing and digging a few more tanks. Last weekend I found about 30...