Swanny10 Posted February 22, 2017 Share Posted February 22, 2017 Anyone had this happen under 6000 rounds? Everything was running smoothly and then.... Link to comment Share on other sites More sharing options...
Bamboo Posted February 22, 2017 Share Posted February 22, 2017 (edited) Bummer, never heard of one breaking like that, but they will replace it/fix it for free and you will be back in the ammo making biz soon. Edited February 22, 2017 by Bamboo Link to comment Share on other sites More sharing options...
ParaLarry Posted February 22, 2017 Share Posted February 22, 2017 My 550 broke in the same place after 600,000 rounds. Sent a picture to Dillon and they sent all the parts immediately. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Dave Campbell Posted February 22, 2017 Share Posted February 22, 2017 Every 250,000 or so a link arm has cracked like that. I've had it happen twice . Dillon replaced them with no problems. I'd have gladly paid for them , but no charge . Best piece of equipment I ever bought. Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 Yea, no big deal. My SD broke the crank after about 35,000 rounds. Call Dillon, new part on the way before the next match... Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 (edited) Larry, you haven't loaded more rounds on your 550 than I have, since 1986... and most of that was .223REM.... Edited February 22, 2017 by 9x45 Link to comment Share on other sites More sharing options...
Swanny10 Posted February 22, 2017 Author Share Posted February 22, 2017 (edited) Thanks for the input. I know nothing lasts forever and have no doubt Dillon will make it right. I was just shocked that it happened at such a low round count. Edited February 22, 2017 by Swanny10 Link to comment Share on other sites More sharing options...
BeerBaron Posted February 22, 2017 Share Posted February 22, 2017 For it to happen so soon I'd say there was an imperfection, inclusion or void in the casting. Nothing much to be done except request the replacement from Dillon. Link to comment Share on other sites More sharing options...
inspector1999 Posted February 22, 2017 Share Posted February 22, 2017 Mine did the same thing, bought used so unknown round count. Sent it back to Dillion and it was fixed no questions asked.Sent from my Pixel using Tapatalk Link to comment Share on other sites More sharing options...
beretta391 Posted February 22, 2017 Share Posted February 22, 2017 Swanny10, had the same issue with one of two I own. Several months later had the handle go same place as 9x45. In both instances Dillon had parts out to me within a few days and I was good to go. There are two side arms for the Dillon SDB. I only know because they asked a few questions when I called, with that they shipped the correct one. PS. Keep enough rounds loaded on the shelf so if the situation arises you have some stock to by you a few days till the calvary comes thru. No worries, they will take care of you! Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted February 22, 2017 Share Posted February 22, 2017 My 20+ year old SDB broke in the same spot - but the old ones were lighter material, and that was after 20,000 rounds. Dillon sent me two (2) new arms - in case the other one broke Do you use lube on your cases? Link to comment Share on other sites More sharing options...
Swanny10 Posted February 22, 2017 Author Share Posted February 22, 2017 40 minutes ago, Hi-Power Jack said: My 20+ year old SDB broke in the same spot - but the old ones were lighter material, and that was after 20,000 rounds. Dillon sent me two (2) new arms - in case the other one broke Do you use lube on your cases? Negative on the lube. Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 I don't use case lube on 9mms because my tumbling method has them slippery and shinny ready to load. Overnight in walnut loaded with 2 teaspoons of mineral oil to clean, and overnight in corn loaded with NuFinish car polish for that jewelry store shine. Now for 357SIG I use a dry lube, Miller-Stpephenson MS-122AD PTFE, because you don't have to clean it off afterwards. I also broke a swing arm and shell plate retainer bolt on the SD, but the parts arrived in time to load for the next USPSA match. Now I keep at least 500 rounds ready to go. From nasty range brass to happy ready to load brass broken shell plate bolt, use a pencil eraser to unscrew the broken part, do not take the whole thing apart. converted SD powder hopper Harley style clunky noisy shift linkage to quite as a mouse old style Gold Wing shift linkage. Link to comment Share on other sites More sharing options...
js1130146 Posted February 22, 2017 Share Posted February 22, 2017 27 minutes ago, Swanny10 said: Negative on the lube. Try it.... it makes loading so much smoother and easier. I didn't for years because I had carbide dies. Now that I've tried it, I'll never go back. Link to comment Share on other sites More sharing options...
dillon Posted February 22, 2017 Share Posted February 22, 2017 Be sure to grease both the inside and outside of the brass link arm bearing. Lack of lube is the most likely reason for the link arm to fail, as galling begins. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted February 22, 2017 Share Posted February 22, 2017 1 minute ago, js1130146 said: Try it.... it makes loading so much smoother and easier. I didn't for years because I had carbide dies. Now that I've tried it, I'll never go back. Ditto Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 (edited) Mine broke the swing arm in the same spot, low left, I think most of the load is there during the crank stroke. I lube mine with 75-90 gear oil. Tried grease but too messy for me. Maybe one day when I'n bored, I will drill and tap the swing arms for Zerk fittings. Do make sure to lube that, otherwise the cast shaft on the crank arm and the integral shaft on the body will gall. Edited February 22, 2017 by 9x45 Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 oh, don't forget to use a loading light at the seating station to make sure there is powder in there. I use these little music lights, called Mighty Brites. Link to comment Share on other sites More sharing options...
Swanny10 Posted February 22, 2017 Author Share Posted February 22, 2017 9 minutes ago, 9x45 said: oh, don't forget to use a loading light at the seating station to make sure there is powder in there. I use these little music lights, called Mighty Brites. I have a light from inline fab. Link to comment Share on other sites More sharing options...
9x45 Posted February 22, 2017 Share Posted February 22, 2017 Inline Fabs are nice, but I just swipe mine from the wife off the harp stand...... Link to comment Share on other sites More sharing options...
IronicTwitch Posted February 22, 2017 Share Posted February 22, 2017 I had the same exact failure on my crank arm at around 12K rounds. They sent new arms for both sides PLUS the brass sockets (upgrades from the delrin sockets). I do notice the upper left socket is looser than the other 4, so I wonder if that had something to do with it. That and I had a batch of tough primer pockets once... Glad Dillon has their great warranty! Link to comment Share on other sites More sharing options...
mlm Posted February 22, 2017 Share Posted February 22, 2017 Had that happen to both my 450B's. Sent to Dillion and they repaired and returned all within 2 weeks. They are great. IMVHO Mike Link to comment Share on other sites More sharing options...
jmorris Posted February 23, 2017 Share Posted February 23, 2017 10 hours ago, dillon said: Be sure to grease both the inside and outside of the brass link arm bearing. Lack of lube is the most likely reason for the link arm to fail, as galling begins. When did the bushings change from plastic to brass? Link to comment Share on other sites More sharing options...
dillon Posted February 23, 2017 Share Posted February 23, 2017 probably12 years ago. The tolerances on the brass bushings are tighter, but they do require greasing more frequently. We see galling as an issue on machines that lacked grease. Link to comment Share on other sites More sharing options...
taxil343 Posted June 7, 2017 Share Posted June 7, 2017 On 2/22/2017 at 10:26 AM, 9x45 said: I don't use case lube on 9mms because my tumbling method has them slippery and shinny ready to load. Overnight in walnut loaded with 2 teaspoons of mineral oil to clean, and overnight in corn loaded with NuFinish car polish for that jewelry store shine. Now for 357SIG I use a dry lube, Miller-Stpephenson MS-122AD PTFE, because you don't have to clean it off afterwards. I also broke a swing arm and shell plate retainer bolt on the SD, but the parts arrived in time to load for the next USPSA match. Now I keep at least 500 rounds ready to go. From nasty range brass to happy ready to load brass broken shell plate bolt, use a pencil eraser to unscrew the broken part, do not take the whole thing apart. converted SD powder hopper Harley style clunky noisy shift linkage to quite as a mouse old style Gold Wing shift linkage. That's a great idea on the powder measure. What exactly did you use? Link to comment Share on other sites More sharing options...
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