Crowheel Posted November 22, 2021 Share Posted November 22, 2021 Few days ago I hit a big hole on the road and broke my wheel. Its cracked in the middle and about 15 cm long. Since iam working with my wheel and deliver food I cant wait long time to get new one so I called few welders who i hope know what are they doing. So I found one and strip my Sherman before I took the wheel to that welder. Unfortunately I didnt remove center of the wheel or motor so I hope all will be fine. So guys if someone have some experience with welding and sherman please let me know did you remove motor from rim before welding. Iam so scared now that this high current will fry my wires. Thanks! Quote Link to comment Share on other sites More sharing options...
supercurio Posted November 22, 2021 Share Posted November 22, 2021 Not a welding specialist: but I've heard several times that welding a cracked rim was impossible to weld back due to the risk of heat demagnetising the magnets. As you describe that the crack is in the middle and not one side, it seems like it would make the process more problematic. 1 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted November 29, 2021 Share Posted November 29, 2021 On 11/22/2021 at 1:52 PM, Crowheel said: did you remove motor from rim before welding The controller is the sensitive part. The electrical parts of the motor will be fine, but I would disconnect the motor wires from the controller, before welding. Try to minimize heat at the motor: no pre-heat, no after-welding stress relief, stitch weld with long cooling rests between segments. (Magnets are glued to the rim- we don't want to fail the glue.) Welding cast aluminum is never ideal... consider it a 'temporary fix' and ride cautiously. If the wheel repair fails from minor impact like riding down a simple curb, the tire can jam and you will crash instantly. Quote Link to comment Share on other sites More sharing options...
Crowheel Posted November 30, 2021 Author Share Posted November 30, 2021 I did it guys, after welding I give the rim ta a guy who manage to balance the wheel and now works great. Today i did 60km or around 40 miles. The ride was even better then before because of balancing so I think every rim should be balanced since this wheels are from China and they are not to precise or quality crazy people. Ofcourse before welding I removed motor and I was insisting to have wet rag over the wheel while welding. I had a little problem that no video will show you. The problem was that after I did all screws on black round cover of the motor my center hole where shaft bearing is didn't sit all the way so when i put the hangers on shaft hangers were scratching on motor covers (black round plate) . I fix this with rubber hammer hammering all around the centre hole for a while until it didn't sat enough on bearing. Now all works great an I hope it will stay like this stay for long long time. 2 Quote Link to comment Share on other sites More sharing options...
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