Easiest thing is to buy rubber tubes (probably find them at a lawnmower
service store) and have them installed. Then your hand pump will always
work. I had the same problem and got tired of taking the wheels down to
the local tire store for a quick pump-up (tried service stations' air
pumps but quickly found these were not reliable enough for the job).

Redlocks wrote:
I have a handtruck which I use to transport my DJ equipment in and out of
the venues where I DJ special events. The other evening I noticed that one
of the tires had separated from the rim. Upon more careful inspection i
noticed that it was actually a tubeless tire. Do I need to take any special
measures when filling it with air. Unfortunately I wasn't able to build
sufficient pressure with a hand pump

Thanks.

John