Water meter maintenance is almost always the responsibility of the local water utility. If you believe there is a problem with your water meter (a leak, over or under reading, strange noise, etc.) contact your local water utility. The telephone number for your utility can usually be found on a recent water bill or in the phone book.
It is not a good idea to attempt to repair your water meter yourself. In many places, the water meter is actually the property of the water utility – not the homeowner. Tampering with your water meter in any way could result in a fine.