1971 Fiat Allis 11b Rollers

Couple of threads on here I have bookmarked:

http://www.allischalmers.com/forum/forum_posts.asp?TID=68153

http://www.allischalmers.com/forum/forum_posts.asp?TID=68890

Andrew

That sounds great Lazyts but I have a place that I can buy two new D5 track group for $3800US. Probably cannot get two whole new Fiat Allis 11B track groups for that can you? What kind of price for 12 new rollers and what kind of price for 12 used rollers? I have been told that the D5 Rails will run on the existing rollers. The company that is selling me the D5 Tracks said they can manufacture me new rollers if I send them drawings with dimensions. Thanks for your help

Well they are from China, I know that the quality is not as good but for what I use the old dozer for it should be fine and that price is hard to beat with 2000 Hr Warranty. I can get dry tracks for $3800 and Lubricated track for $4100 landed here. The company told me that if I could give them roller mounting dimensions they could change their machining on d5 rollers to make the fit the fiat allis 11b. I can buy the rollers new for $132 each. I have found some rollers in GA at salvage that are suppose to be about 60 to 70 % for $125. Will my segments not work? There is only 0.009 difference and there is some wear on them but for the most part they are in great shape. I was told that the D5 chain would run on them.

You're right- you can't beat the price.  That is why the Italian manufacturers are getting out the the small tractor business- they just can't compete- labor costs are just too high.  The D5 chain should run on the 11-B sprocket if you're sprockets are worn a bit.  It won't be as good as the D5 sprocket, though- the D5 bushing is quite a bit smaller, so the wear will be increased on the outer surface of the bushing.  I'd be curious to know how it turns out- I've been over the whole idea of D5 chain on an 11 myself.  I know of guys using D5 rollers on 11s for sure, with an adapter plate (some guys weld a tapped block on the track frame to shim up the D5 roller and bolt it on- I'd rather bolt something on myself), and I've seen a few 11-Bs with D5/750 carrier rollers.  (750 JD uses same track as D5, with 40 links just like an HD11.
Bottom line, at those prices, I'd try it, but I'd probably do the segments as well.  I've seen lots of track ruined from external P&B wear, when there was still life in it pitch wise, from bad sprockets and guys rattling around in reverse.  The temptation is there to walk a tractor in high reverse because of the higher speed, but you will pay for it in undercarriage wear.
My 2 cents...  sometimes you have to sort through a few opinions to get the right answer.

Who quoted the prices, I am curious as to rails/shoes for my 7G which is also in the same pitch as a 11B (7.0).

I have found by wear dimensions the 6.906 rails are exact match at 50% wear but the rail width and bushings are smaller, found a size chart at dracoequipment but they would never answer as to availability for special orders as a 37 link chain for me with 15" shoes. The JD750 came with varying styles of pitches. My old girl has spoke sprockets and would require massive mods to make the chain work, thought about the D5 chain and shoes from a 953 a few times. Currently have a 7G donor with good rails, piddling poor shoes.

http://dracoequipment.com/Parts%20Links%20and%20Pages/All_Cat_107A.pdf

Edited by DMiller - 23 Aug 2013 at 5:55pm

Know what you mean and how you feel, my old 7G works fair when it works but on its worst day seems easier to work for me than a 755 Deere, just can't get used to a hydro unit, lots of squealing and hydraulic complaining. Buddy has a 555G, can't stand the feel of the controls or the operation as it is a direct drive on a clutch with a converter like a shuttle.

Have had several guys try to convince me to a 555G Deere, I wish Allis had kept the lines running too so I could show them a real good working machine.

I am taking coke's advice, sticking with re-rod for now as to track grousers, I am a cheapskate at heart even as I do get price bids for repair parts. Can't quite justify $1000 for grouser bars and still have to buy weld rod and find time to set them properly. Thinking I may keep the tracks I have from the donor intact, replace the oddball few shoes that were modified as replacements and add 3/4 or 1" rebar to the other end of the remaining shoes to balance to the existing grousers.

DMiller I am talking with two different companies in China. There are tons of them over there. Just google and you will come up with more than you can imagine. EB Parts and K&H Parts are two that I have been talking with.

D5 rails are engineered for a 24000 pound tractor to sit on, not a 33000 pound tractor like 11 series B. The D5 track is a good conversion for the much lighter dry steer HD11 tractors though

Rafter; the pitch difference is 6.91 vs 7.00, is 090 difference not 009.
So you will have to have matching sprockets.
D5B operating weight with ROPS and 5S blade is 28000lb, and with a winch would be easily 30000lb. Is abit light for a 11B with a lot more hp. But sometimes is not much other choice. Have only heard of dry backend 11s being converted, never a wet one. In comparison later D5H/M has 7.5 pitch and D6D has 8.00 chain.

The weight I gave for 11 series B does not include all attachments. Which ever way you look at it, there is a mighty big difference in both weight and power between an 11 series B, and the tractors that the D5 chain were originally engineered for. If not, Caterpillar would have used the same track on D6C and D6D which are very close in weight to 11 series B and wet steer HD11

It isn't ideal, but it would probably work, with the hours most of these old tractors get these days.

Probably melting down good used undercarriage!

Trev don,t know anything about Chinese track gear. But have seen and heard only bad things about chinese engine and final drive componets. Junk in both cases. The Korean undercarriage is supposed to be as good as the Italians stuff and nothing wrong with there track gear.

My brother once put new Chinese tracks on a Komatsu trackhoe. Then every time the machine worked on rock, it broke track pins. Just broke pin after pin. Got so bad he set up a truck just for the track repairs with equipment for thermic lancing, driving, and replacing segments and pins. Was a hard and expensive lesson to learn not to ever buy Chinese junk again

Do you know where to get top or bottom rollers for Fiat Allis 11B? New, used or rebuilt.