Step1: Turn off and cool equipment completely, wear gloves.
Step2: Remove existing handle and knob assembly using appropriate screwdriver.
Step3: Align new handle and plastic ball knob assembly with mounting points.
Step4: Insert screws and tighten evenly, avoid over-tightening to avoid cracking.
Step5: Check alignment and secure fit.
Step6: Test operation, ensure knob turns smoothly and is firmly attached before use.
Step7: Ensure power is disconnected during installation to avoid burns or injury.