How do you turn on glow plugs on Kubota L2900?

To turn on the glow plugs on a Kubota L2900, first ensure the tractor is in neutral and the ignition key is in the "ON" position. Then, locate the glow plug switch, which is usually a push button or a toggle switch on the dashboard. Press or toggle the switch and hold it for a few seconds until the indicator light (if equipped) turns off, indicating that the glow plugs are activated. After this, start the engine as usual.