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How to Adjust the ISRI Pneumatic Seat on a Heavy Vehicle

Model: (Various brands) Various
Part: Seat

Let’s see how to adjust the ISRI pneumatic seat; the lever for the backrest adjusts the angle; the one for the shoulders adjusts the height of the shoulder support. The three buttons adjust the lumbar support, distinguishing between the upper/lower and the lateral support. The seat height lever adjusts the seat height in increments of 12 mm; the absorption lever makes the suspension softer or firmer; the air release lever lowers the seat for easy entry and exit, while the tilt lever tilts the base of the seat. The cushion slide lever moves the seat base forwards and backwards, while the total slide moves the entire seat forwards and backwards (when seated). The correct posture is: seat tilted at 30/40° from vertical, the shoulder support should hold the shoulders in a neutral position, while the lumbar support should maintain the natural curve of the spine. The seat should be positioned to keep the hips and knees aligned; elbows and shoulders should be relaxed.

Posted on 26 April 2026 by ScegliAuto

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by ScegliAuto

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