Need advice to fix floor jack

[sofasurfer]

I have a 3 ton floor jack made by MVP. The gears that the handle turns do not mesh. The teeth sometimes seem to be able to mesh and at other times they do not mesh, as if the teeth are too short. The gear that attached to the valve in the jack also seem to stick sometimes and spins freely other times. From what I can learn from the apparent ONLY video on the internet the valve may be stuck and need to be taken out and freed up. As for the gears, do they have an adjustment or are the actually worn and need replacing? To me they do not seem worn but I could be wrong. I have NOT used the jack thousands of times. Do the wear easily? I found gears on Amazon but they do not specify a brand of jack. Are these gears all the same?
Appreciate any advice.

 

[sofasurfer]

This is the gear that I found on amazon. Don't know if its the same. Looks the same.

https://www.amazon.com/JicSuXi-Horizontal-Hydraulic-Accessories-Repair/dp/B0D3XZ6GJW/ref=sr_1_7?crid=2RUOBITKWEP7Z&dib=eyJ2IjoiMSJ9.QiJiaSFs9YqO6odW_-WfBsHMfQ_gRwZ1bcDfOFKYA_c3u5SZvpmQAzNXx6A5NYdI8e-RLq3F8_bkwMVGrVb_fTvCxOtKd4FfooEOMcUXWx9FataARNNlu9_Z19sE9VVzoKFKVHcsiIgLNfCi6LBHFByM1gL1oEKJ2Zp6vowtSAs1Dzr4k9QIu7vbHlug4HBhINoqRGxBiFlJ84sj9TvtHwVxas6nsH-qTsYlM0YXvNB7xItW2VQWkqiU-5pBUdlrpPPoKtLkafL7eI2EsFsTSd78hGp-paHJOSTvHRjv7PY.bfzfiWq87STLMWN_IzKcnp1Y1iftGvToZxtEigcDKA8&dib_tag=se&keywords=floor+jack+gears&qid=1731563915&sprefix=floor+jack+gears%2Caps%2C129&sr=8-7

  https://www.amazon.com/Horizontal-Repair-Switch-Hydraulic-maintain/dp/B0BXWY7GH7/ref=sr_1_2?crid=2RUOBITKWEP7Z&dib=eyJ2IjoiMSJ9.QiJiaSFs9YqO6odW_-WfBsHMfQ_gRwZ1bcDfOFKYA_c3u5SZvpmQAzNXx6A5NYdI8e-RLq3F8_bkwMVGrVb_fTvCxOtKd4FfooEOMcUXWx9FataARNNlu9_Z19sE9VVzoKFKVHcsiIgLNfCi6LBHFByM1gL1oEKJ2Zp6vowtSAs1Dzr4k9QIu7vbHlug4HBhINoqRGxBiFlJ84sj9TvtHwVxas6nsH-qTsYlM0YXvNB7xItW2VQWkqiU-5pBUdlrpPPoKtLkafL7eI2EsFsTSd78hGp-paHJOSTvHRjv7PY.bfzfiWq87STLMWN_IzKcnp1Y1iftGvToZxtEigcDKA8&dib_tag=se&keywords=floor+jack+gears&qid=1731563915&sprefix=floor+jack+gears%2Caps%2C129&sr=8-2

 

[paulsomlo]

Pictures, please - and that gear will be a **** shoot, as far as fitment.