Fender Tim Armstrong Hellcat-12 Fender Acoustic Guitar Owner s Manual - Page 16

Tuning Machines Fender uses only the finest tuning machines. Our die-cast machines (Illustration 1), are pre-lubricated and sealed, and as such, do not require periodic oiling for smooth operation. A small tension adjustment screw is located at the end of each die-cast tuner's button that also holds the button in place. If the tension is too loose, the machine may slip and go out of tune easily. If it is too tight, the button may become very difficult to turn. Make sure that the adjustment is firm, but not too tight. illustration 1 Sealed Die-Cast Tuners Open-back tuners (Illustration 2), do not have a tension adjustment screw, and will benefit over time with a small drop of lightweight machine oil on each gear, to ensure smooth positive action. Set-up 3-In-Line tuners (Illustration 3), are typically used on classical/nylon string guitars, and will also benefit from a small drop of lightweight machine oil from time to time. illustration 2 Open-back Tuners 15