So here's a little write up of how Bob's solution to the Jet 260's thicknesser table problem. As a reminder of the problem. The table would very gradually fall over lengthy periods of use.
To start with I had to remove the hand wheel and, in my case, the digital gauge. If you don't have the digi-gauge then you need to remove the dial.
The first part in Bob's kit is a shaft extender. This is only needed if you have a digital height gauge. If not, just skip this step.
The shaft extender is secured in place by two grub screws. These are ever-so slightly proud of the surface and need light filing to make them flush.
Some filing of the extender itself maybe required to flush it with the shaft. Not much.
Then the planer lock is fitted over the shaft and a pin locates on the machine body.
If you don't have the digital height gauge, all you now need to do is replace the dial and secure, then fit the hand wheel.
If you have the digital gauge then it needs to be slipped over the shaft and located in a pre-drilled hole on the lock body.
Now the hand wheel can be replaced and the digi-gauge setup as per the manual.
In use, to lock the table at the set depth, just tighten the lever up until it just bites.
.. and to unlock, just flick it down.
... set your depth, lock and so on.
It really is simplicity and works incredibly well. I've now had it three weeks and used it a great deal to prepare about 50 boards of mainly sycamore 120mm x 400mm. The dial doesn't move a thou!
I Can't thank Bob enough for taking the time to help me with this. I believe Bob is interested in helping others out. Send him a PM if you have a problem with your Jet JTS-260