International 3514 help!!

I have recently purchased a International 3514 TLB with the C-153 gas engine. Was able to get a good deal as it needs a little elbow grease and some tlc. It has a international backhoe attachment but im not sure which one it is. According to Binder Books listings, this tractor could potentially have used 5 different backhoe models. They carry the manuals for them, (3120,3130,3140 in one manual and 3121,3131 in another manual) but I cannot find any serial tag on the backhoe. I need to get the right manual to start doing some machining of parts and hydraulic work on this beast but i want to make sure i get the right one the first time. The only numbers i can find on it are on the bottom of the boom by the pivot shaft. They are 468330R1. From what I have been reading this likely refers to a part number and not a serial number. Any help would be greatly appreciated. Also, I want to track down where the serial number plate is for the tractor itself. On the right side of the frame i forward of my right foot while sitting on the tractor is a plate but a previous owner gave the tractor a spray can paint job and it was covered. It looks like somebody tried to use steel wool to remove the paint from it to get numbers and they ruined the plate so that the only numbers i can see are 530 W. Again, any help is greatly appreciated as this forum has already helped me to understand alot.

This is part of the CE (Construction Equip) side of IH that was sold to Komatsu/Dresser/Hough, the problem then as now was that not many IH FE (Farm Equip) were a combination dealer with both contracts. They (IH) were sparse with any service or parts info so not a lot of AG dealer are knowledgeable. I personally delivered a 3414 new to our City Street Dept, it was sold thru the closest CE dealer to our local FE dealer. I would say that if no one else gives you help that I would go to the nearest Komatsu dealer.

I forgot to say that at time the CE Division had a 3414 (around 40hp with 4 cyl), a 3514 that was 50hp gas or opt diesel like 504 AG series , a 3616 that was 60hp 6 cyl gas or diesel.

All back hoes of that era were much the same. The #s define the digging depth 3140 being approx 19' ft depth. The older hoes had the Hyd valves on either side of operater, the later hoes had the valve bank under the operater. Not sure if that was when the change to 3141 series started.
3514 was built from 1969 thru 1972 Serial # started at 501 Thru 3769. If that # you found is right it is one of the oldest. Serial plate was like all IH Approx 2X3 fastened to the clutch housing

(quoted from post at 04:30:55 03/29/12) All back hoes of that era were much the same. The #s define the digging depth 3140 being approx 19' ft depth. The older hoes had the Hyd valves on either side of operater, the later hoes had the valve bank under the operater. Not sure if that was when the change to 3141 series started.
3514 was built from 1969 thru 1972 Serial # started at 501 Thru 3769. If that # you found is right it is one of the oldest. Serial plate was like all IH Approx 2X3 fastened to the clutch housing

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The plate i took the picture of was on the frame itself. If you look at the first picture I posted, you cannot see it but i found it right behind the lift cylinder for the front loader. I hope that is a correct number. If so I can pretty much determine that it is a 1969. It runs smooth. I have no complaints with the motor or trans but some of the pins are a little sloppy in the backhoe and i have an issue to address with the pivot shaft. The seal that is under the splined mounting bracket on the pivot shaft is junk and leaks pretty good. Im gonna drop the backhoe off of the tractor and go over all the mechanics and hydraulics. Quick question..... Do you happen to know if the hydro line that comes from the top of the splined shaft is a return line or a pressure line? Just seems to me that its there to return fluid leaked into the rack housing. And the valve bodies are underneath me when I'm sitting up there. The last picture shows the entire setup there. No covers though. Must have been a casualty of war for a hard worked machine. I will fabricate them once I iron out all of the issues. Again, thanks for the info. It really helps me to better understand what I'm getting myself into.

I called a local Komatsu Dealer but they didn't have any information on the backhoe itself. They did have a set of parts manuals for the tractor but I have already ordered original reprints. From what I can remember, there is an old International dealer around that now deals with Komatsu but that will have to wait. Always working and dont have much time to go and see if I can look through some original service manuals. Plus its a 60 mile drive to get there. Thanks for the info. It is greatly appreciated.

Hoes are different sizes.

3121 has a 12' 7 1/2" reach
3131 has a 13' 9" reach
3141 has a 14' 6 3/4" reach

Also - 3121 and 3131 have a crowd cylinder that is 4" X 33.7"

3140 crowd cylinder is 4" X 37.5"

Do you know what the reaches are for the 3120 and 3130 models? According to Binder Books, it is listed on their website that this tractor can have any of the following (3120,3121,3130,3131,3140). But they also say on their list of service manuals for the backhoe attachments that the 1 series should be the only ones that attach to the 3514. Is 0 series PTO driven? Do you know if the crowd cylinder is the only mechanical difference? I just dont understand why they would International made two different manuals, one for the 0 series and one for the 1 series. Or are the 0 series a lighter duty and the 1 series a heavy duty. This backhoe is really heavy duty with the metal plate almost 1/2" in some places. Thanks for the info. When i get a chance later today I'll see if I can measure the crowd cylinder and try to figure out which model this is.

IH made that hoe series to fit wheel tractors, crawlers and even on the back of road driven trucks. Thus all the variations. The ones ending in even numbers are the early models - i.e. 3121 was the newer version of the 3120. There are many subtle differences in them - even with same model number over time.

I've got what's supposed to be a master IH backhoe book from that era. Shows a 3082A, 3120, 3121, 3130, 3131, 3140, and 3141.

3082A has an exposed rack and pinion gear swing and is quite different from the rest.

3120 was built 1962-1965 and used on: 2424, 3414, 3514, 3616, T-340 crawler, 460, 2504, 2606

3121 built 1966 on, used on: 2505, 2606, 2424, 2444, 3414, 3444, 500C crawler

3130 was built 1963-1965 and used on: 340, 469,2504, 2606, 3414, and TD-340 crawler

3131 built 1966 and on, used on: 2504, 2506, 2424, 2444, 3414, 3444 and 500C crawler

3140 built 1963-1965, used on: 340, 460, 2504, 2606, 3414, 3616 and T340 crawler.

3141 built 1966 and on, used on: 2504, 2606, 3414, 3444, and 500C, T7, TD7, TD8, 100C, and 125C crawlers.

Thanks for the info. Would you be able to reference a part number for me and let me know which models it was used on? The part number is 481806R1. If you look at the first and second pics on my post, you will see where I cleaned the paint off at the base of the hoe on the housing where the pivot shaft is located. And there is what I assume to be a date code stamped also. Hopefully that can help me to identify model and year. I just want to get the right original service manual. I need to get correct specs for machining purposes. I know parts are hard to come by but these pieces can be made with correct specs. Again, thanks for taking the time to give me this info. I hope to restore this tractor to its former glory so it will run for another 40 years.

I only find 481806R21 (not R1). Called "housing with bushing for swing 1965 and newer. Used in the 3120,3130,3140. Same housing for the 3121 and 3131 is 481806R31.

The earlier part for the 3120, 3130, 3140 is 468329R11 and used in hoes 1962 to 1965. So that makes your hoe 1966 or newer.

that small line up on top of the rotator is just a return line

my 3120 is seeping hydraulic oil out that seal in that area near the splines, I have been told that the seal you see is just a dust cover, actual sealing in done by 2 very large o-rings

LJD posted some good stuff on this a while back, search under 3414 either on this forum or on crawler forum

Is that the stroke? The cylinder itself is 52.5 pin to pin when fully retracted. If thats the stroke then I will have figured out which model it is.