How do you change glow plugs on case 970 diesel tractor?

To change the glow plugs on a Case 970 diesel tractor, first disconnect the battery to ensure safety. Remove the engine cover and locate the glow plugs, which are typically found near the cylinder head. Disconnect the electrical connections and unscrew the old glow plugs using a socket wrench. Install the new glow plugs, reconnect the electrical connections, and reassemble the engine cover before reconnecting the battery.