The screw element (often part number 2906-0700-00 for the GA7FF) is the core. In the parts manual, pay attention to Notes:
Model Designation Breakdown:
Why the Manual is Critical: The GA7FF utilizes specific internal components that vary by production year (e.g., the shift from the Elektronikon Mk I to Mk II/III controllers). A generic parts list is insufficient; the specific parts manual based on the serial number is required to avoid ordering incompatible oil filters, separators, or inlet valves. atlas copco ga7ff parts manual
The layout of the parts manual reveals design-for-maintenance thinking—or lack thereof. The screw element (often part number 2906-0700-00 for