Wipe away the old lube (FWB Special Grease) on moving parts, cylinder threads and o-rings and reapply after every 500 or 1000 shots.

I also keep the charging adaptor and main cylinder outlet covered.

I also clean the bore after every 500 to 1000 shots.

Only had a pcp for three months but so far it has behaved itself. Touchwood!

Rustam