Properly centering the piston cap on a Corken® 891 compressor is a critical step that prevents catastrophic mechanical failure.

Because the fastening bolts have built-in clearance, an unaligned cap can drift during operation and score the cylinder walls. Achieving a perfectly balanced, uniform clearance around the entire circumference ensures smooth operation and eliminates destructive friction. Neglecting this alignment can lead to premature wear on your components, reduced compression efficiency, and costly downtime. For a visual aid to ensure your equipment is set up safely and correctly, please refer to the step-by-step instructional video below.