Happijac slow leg

Everyone who responded scores 10/10. I had a similar problem and jumped to buy a new motor. That was a mistake. The best operational fix is to be patient, run the front at little-run the back a little and tweak when necessary. Unfortunately the jack causing me the most grief had nothing to do with the motor; the bearings are NFG. The bearings on this jack are seized (4150 model) others are in poor shape. I learned a lot from this forum and can confirm that these jacks need to be dismantled every 2-3 years for cleaning and regreasing. I dismantled my set and am looking for bearings from a local shop because Happijac isn't so happy when it comes to details about the components. New jacks are $2070 online and $3000 from retailer. The bearings must be less expensive.