Happijac lubrication
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Forum Discussion
Yes, one of the front jack really started to bind. The bearing was all torn and the Clutch/brake spring was broken. There was also one the pin in the connector that was bent, probably near to brake apart. One thing that really made it worst, probably what caused the binding, the o ring below the shaft connector was all destroyed to small pieces and some of those pieces got chaught in between the shaft and the recirculating ball screw that is in the inner tube.
This part is made of many little balls, I hope it will eventually all clear from the screw shaft. The other side is really smooth, not binding at all.
The rear 4150 jacks uses the ACME block instead of ball screw and the shaft is made a bit different with smooth groove, the front jack screw is a much smoother shaft.
I also took a look at the other outer tube today and 2 were also bent a little, not much, but I gave it a few wack to make them as straight as possible.
I ordered an upper assembly from Happijack because I cannot find the Clutch / Wrap spring. I will also buy some TC1018 thrust bearings and thrust washer and replace them on all jacks. I think these bearings should be cleaned at least every two years and relube and the o ring check to make sure they do not get destroyed, in all 4 of my shaft, the o ring where broken.
This part is made of many little balls, I hope it will eventually all clear from the screw shaft. The other side is really smooth, not binding at all.
The rear 4150 jacks uses the ACME block instead of ball screw and the shaft is made a bit different with smooth groove, the front jack screw is a much smoother shaft.
I also took a look at the other outer tube today and 2 were also bent a little, not much, but I gave it a few wack to make them as straight as possible.
I ordered an upper assembly from Happijack because I cannot find the Clutch / Wrap spring. I will also buy some TC1018 thrust bearings and thrust washer and replace them on all jacks. I think these bearings should be cleaned at least every two years and relube and the o ring check to make sure they do not get destroyed, in all 4 of my shaft, the o ring where broken.
