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GWR 45xx functions
Function number Sound Operation
F0 - Directional lights (FOf+FOr)
F1 Fade in/fade out -
F2 Whistle short -
F3 Whistle long -
F4 Brake hiss Brakes are applied
F5 - Light engine mode
F6 Coal shovelling -
F7 Injector -
F8 Flange squeal -
F9 Ejector -
F10 Buffer up/coupling -
F11 Safety valves -
F12 Manual draincocks -
F13 Guard's whistle -
F14 Coach door slam -
F4 Brake On pressing F4 the sound of the brakes being applied will be heard. At the same time, if the throttle is set to zero, the loco will slow down as if the brakes have been applied. The rate of braking can be adjusted via CV4. For best results, and to closely simulate the prototype, it is recommended to set the F4 action on your DCC controller to 'trigger' (momentary) action, rather than latching, if your DCC system offers this as an option.
F5 Light engine With F5 on, the acceleration rate is made quicker as is the deceleration rate. Also, the coasting is switched off. In conjunction with this, lighter chuffs are heard
F10 Buffer up/coupling On pressing F10, the 'Buffer clash' sound is heard, and the 'coupling up' sound is heard when the function is turned off.