| Hi Lars,
Usually , when a trumpet comes from the shop brand new it's been cleaned both chemically and with there ulta-sonic process so if pretty immaculate inside.
But - Here's the biggie - it probably has some of Dave Johnson's spit in it from testing it before it goes out and I would now classify it as certifiable " petri dish " for minimally a very toxic strain of " Escherichia Coli and maybe the " Nile virus " to bout. ( plus maybe some things you pick up in Branson if you play there long enough - know what I mean ? )
So to be safe, take it apart , give it a bath in some warm water and anti-bacterial detergent, brush out the slides and valve casing, rinse it off with clean tap water ( Pittsburgh , maybe not possible ), grease up the slides with what I use , plumber's grease that is used on brass valve stems by plumbers ( buy it at any hardware store ) and it holds consistency past 180 degree hot water - on the third valve slide, drip a little valve oil on it with the plumbers grease ,to loosen up the plumbers grease so it slides easy - and use lots or your favorite valve oil and you should be ready to put it thru its paces.
When the valves are breaking in to the angle of your specific downstroke, wipe them off frequently with " cheese cloth " or " cotton diapers " ( my personal favorite ) so that the really tiny break-in grit won't hang up the valves and use alot of oil ( enough to let it drip out the bottom valve cap ) until it doesn't get slightly "dark" anymore - probably a month or so.
OH, don't wear your white pants during the oiling part.
Have fun and put it thru it's paces - no need to baby your new " hot-rod "
Lg |