General advice on maintaining your wind instrument in-between services:
ALL wind instruments need some attention from time to time, so regular servicing is a great idea. About once a year to 18 months is about the right time for a general service, this would include clean, adjustments and lubrication of moving parts, and the replacement of worn parts.
In the meantime, until the next service there are several things you can do to help keep the instrument in good playing condition and looking good.