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Low Key Music

Trumpet Repair

Minor Trumpet Overhaul  

Sometimes referred to as simply a cleaning and tune-up, the minor trumpet overhaul at Low Key Music, is more than just that. We first evaluate the overall condition of the trumpet noting any damage to the body including dents, bent  braces, or alignment issues.  We also look for red rot or corrosion in the tubing or broken/cracked solder joints.  We check for stuck slides and for proper valve alignment.  We check for wear on the valves and for blow by or compression. Once the assessment has been made, we will discuss any items that may require work outside of the scope of a minor overhaul.

The next step in the minor overhaul is the complete disassembly of all the slides, valves, and anything else that can be removed. The trumpet is then degreased and chemically cleaned by submersion in a safe solution of classic brass or  cleaner.  After cleaning, minor dents and solder repairs are done.  The minor overhaul typically covers up to two small solder repairs and most easily accessible minor dents.   Parts other than springs, felts, and corks are extra cost.

The third step in the minor overhaul process, is re-assembly and setup. Good valve alignment is critical for the trumpet to be free blowing and to accurately voice the notes also known as slotting. The valve alignment is set by using various thicknesses of cork or felt washers on the valve stem and upper valve cap. The valve springs are replaced to restore feel and give proper speed of valve return. The water key or spit valve spring and cork are replaced. We prefer to use synthetic  water key corks which last much longer than natural cork. All the slides are greased and installed. The valves are oiled and installed and checked for smooth action.  Finally the trumpet is play tested and packed for safe return to its owner.

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