Step1: Turn off gas supply and ensure appliance is completely cool.
Step2: Shut down and relieve any remaining gas pressure safely.
Step3: Remove old pilot adjustment valve from the gas line carefully.
Step4: Clean all threaded fittings and inspect for damage or wear.
Step5: Apply gas-rated thread sealant to inlet and outlet connections.
Step6: Install new pilot adjustable valve in correct flow direction and tighten securely.
Step7: Restore gas, check for leaks with soap solution, and adjust pilot flame.