D17 Snap Coupler Pin Removal
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=162057
Printed Date: 06 Sep 2025 at 6:18pm
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Topic: D17 Snap Coupler Pin Removal
Posted By: Gary Va
Subject: D17 Snap Coupler Pin Removal
Date Posted: 19 Jun 2019 at 5:58pm
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Have a 1963 D17 Series III and two of the steel pins that hold the snap coupler springs in place have broken off flush with the casting. Have tried a regular drill bit and left-twist extractor tool and cannot drill out or remove. With all of the AC snap couplers out there just looking for any tried/true methods to remove these pins or should I just take the snap coupler off the tractor and take it to a machine shop to heat and drill out? Thanks in advance for your help. Gary
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Replies:
Posted By: DSeries4
Date Posted: 19 Jun 2019 at 8:47pm
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FYI, the snap coupler is the bell underneath the tractor. You are talking about the lift latches here. I know overhaul kits are available, but I have not had to do one yet. When in doubt, a machine shop will always do what you request. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Gary Va
Date Posted: 19 Jun 2019 at 8:59pm
| Thanks for clarifying, the lift latches have the pins and springs and I think the machinie shop is the next stop, Thanks again. |
Posted By: DiyDave
Date Posted: 20 Jun 2019 at 4:40am
Ig you're talkin about the forward pin, that holds the spring, just drill with the appropriate sized bit, thread, and put in a stove bolt. If you wanna get fancy, fill the screw slot with bondo, and paint... ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: CTuckerNWIL
Date Posted: 20 Jun 2019 at 7:13am
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Tracy commented about this on an old thread.
It will have drive screws in the rear ears for the springs. They have
a high helix thread that is driven in. The drive screw is hardened, it
will break off if not careful. It can be gotten out if patience is used.
You can anneal it with a torch, if you break it. Don't try to drill it
out without proper tools or setup. You will ruin your ears. . Look at
the threads and see which direction will turn it out. It won't come out
easy. The front is riveted in. It is self explanitory if you examine it.
HTH Tracy Martin
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Sugarmaker
Date Posted: 20 Jun 2019 at 7:45am
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Gary, Yes I now understand your problem with the latches. I wounder if any one ever tried melting out the old pin with a oxy/acct torch? This would be a last resort and I have never tried it and its a dedicated part. Might ruin it? But my dad told me that a broken steel bolt could be melted out of a cast part and not damage the casting. I actually did this on some 5/8 broken bolts in a off color TD6 dozer undercarriage. It did work. Wasnt pretty and not for the weak of heart. Regards, Chris
------------- D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet. |
Posted By: CTuckerNWIL
Date Posted: 20 Jun 2019 at 3:59pm
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If you heat it up near red, with a torch and gradually lesson the heat, letting it cool slow, it will soften to where you can drill it out. I don't think you could blow it out with a torch like you can with a thru bolt. Just no place to blow it. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Gary Va
Date Posted: 20 Jun 2019 at 4:27pm
| Thanks for all of the input and I took the latch to a local machine shop today for him to heat and try to remove the steel pin, hopefully not damaging the latch cast material. Thanks again for the input, it convinced me that I needed some outside help!! Gary |
Posted By: ACinSC
Date Posted: 15 Jul 2019 at 6:34pm
| Just wondering how the lift latches came out ? Thanks ! |
Posted By: Gary Va
Date Posted: 15 Jul 2019 at 7:12pm
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Thanks for asking and I took my D17 Series III lift latch to a local machine shop in Richmond, VA and he welded onto the broken hardened steel pin that holds the spring and after heating was able to twist/pull the old pin out. I got the latch back on the D17 and placed a new pin and connected a new spring and got it working correctly again. Thanks for asking and certainly wished I had learned the skill of welding as it would have come in real handy on many occasions on our hay farm over the years! Gary
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Posted By: ACinSC
Date Posted: 15 Jul 2019 at 8:24pm
| Glad you got it fixed . May re-do the ones on my D 15 one day . Thanks !! |