Step1: Disconnect power and release pressure; ensure equipment is cool and clean.
Step2: Remove housing cover and carefully extract old O-ring without scratching groove.
Step3: Clean sealing groove, removing grease and debris.
Step4: Lightly lubricate new O-ring with food-grade lubricant and seat evenly into groove.
Step5: Reassemble components, tighten securely, and check for proper seal and leaks after restart.
Step6: Wear gloves and verify system is depressurized before servicing to avoid injury.