1. Withdraw the inner tube by at least half its length
2. Ease off the rubber grip (difficult but possible)
3. Carefully, with a fine toothed saw, remove 4" from the bottom end of the outer handle where the grip was
4. Carefully clean up the cut edges with fine emery
This modification allows the inner, including the sleeve, to protrude from the bottom end of the outer, and can be cleaned and lubricated (furniture polish)
5. push the inner back into the outer until the end is about 1/2" inside
6. Re-fit the rubber grip
7. Add some white tape to the inner as a marker to show how far in the inner can be pushed when closed up.
In the event that the handle locks, just remove the white tape and the grip, push the inner fully home thus exposing the sleeve, wash and wipe to remove offending dust and grit, re-lubricate if possible, and re-assemble.
paul4
edited to get link working proper






