[casstony]

Next you can try tightening the tension screw under the focuser to see if that gives you enough lifting power; it probably won't.

Move on to increasing the tension on the microfocuser bearing. Loosen the 3 grub screws on the black housing nearest the microfocuser. Then you need to loosen the grub screw holding the microfocuser assembly to the focuser shaft - it's accessed through the hole in the black housing near the 3 screws previously loosened. You'll need to rotate the focuser shaft to line up the hole with the screw.

Once you have the microfocuser out hold the silver knob while tightening the brass nut at the opposite end. To tighten the brass nut you'll need some multigrips or perhaps a circlip spanner. (previous versions had a knurled nut or flat sided nut and were easier to adjust)
If it's too tight to turn there may be threadlock that you could try loosening with acetone on a q-tip.
You can probably try 1/8th turn, reassemble and see how it feels.

When you reinstall the microfocuser assembly be sure that the grub screw meets with the flat side on the focuser shaft.

I have mine adjusted fairly tight to hold a decent load, the tradeoff being less smooth operation of the large focuser knob. The small knob/microfocuser is still smooth.