Need help with working servo motor for robotic arm project

Hi, I need help with my project, i am a beginner with arduino and I was doing the robotic arm project (Robotic Arm from Recycled Materials - Arduino Project Hub) and i cant seem to get my servo motors working with my project. I am using this servo motor Servo Motor - Standard 6 Volt with Metal Gear - 13kg | Jaycar Electronics
Would appreciate any help at all please.
Thanks