Genuine FAAC part featuring a 1-year manufacturer's warranty when installed and used according to specifications
Remove the locking cap or manual release cover from the operator.
Carefully extract the old O-ring (P/N?7090855) located between the cap base and body.
Clean both surfaces to remove debris and oil.
Install the new O-ring (33.05?×?1.78?mm) properly seated in its groove.
Reinstall the locking cap and tighten screws per operator manual guidelines.
Tip: Refer to the exploded parts diagram (#10) in the FAAC 400-series manual for positioning and orientation
Replace this O-ring if hydraulic fluid leakage, wear, or seal degradation is detected.
For a more thorough maintenance solution, consider the complete locking cap assembly (P/N?4185045)—includes O-rings, cover, key, and hardware, ideal when multiple components show wear
Keep a spare O-ring in stock—it’s a low-cost yet essential part that ensures long-term reliability of your gate operator.
