Make sure you only take them out one at a time!
If you have taken them all out look at the valve stem- they should have the numbers 1,2, 3 on them.
Start with number 3 - (this is the one furthest away from your nose!!)
Each valve has a bar or plastic disc 'valve guide' this guides the valves into the correct position. Inside the valve case you will see little channels. Carefully guide the valve into the valve channels. If all else fails, place the valve into the case and gently turn the vale round until it clicks. Check the valve is in the correct place by blowing air through the Trumpet with the valve up and then with the valve pressed down.
Repeat with valves 1 and 2.
Make sure that your valves are clean- don't wipe with fluffy cloths- remember to wash off old valve oil before adding new oil.
SBM
All you have to do is take the mouthpiece and put it into the hole at the end of the trumpet that's opposite of the bell.
To put valves in a trumpet, you need to carefully disassemble the trumpet, insert the valves into the valve casings, and then reassemble the trumpet ensuring the valves are properly aligned and functioning smoothly. It is important to follow the manufacturer's instructions and seek guidance from a professional if needed.
the heart?
You should put a comma after "instrument" to separate the two independent clauses in the sentence: "My favorite instrument, the trumpet, has a long history."
Best estimates put this trumpet as being manufactured after 1984.
on the bell
He played it cool
Best estimates put this trumpet as being manufactured after 1980.
Best estimates put this trumpet as being manufactured after 1983.
Best estimates put this trumpet as being manufactured around 1951-1952.
Best estimates put this trumpet as being manufactured around 1951-1952.
Best estimates put this trumpet as being manufactured around 1952-1953.