La Marzocco SWIFT EPSB, Troubleshooting Manual

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WARNING Technician Tasks only to be completed by skilled service personnel
Adjusting finish height of the impeller
To ensure consistency of the shot time and shot quality, the tamping impeller must be adjusted to
the proper height. Follow the steps below to determine the impeller's height
1 2 3
1. Insert a portafilter
2. Remove the loaded portafilter
3. Engage the portafilter into the Swift and then push either button. Remove and inspect the
surface of the coffee puck.
Coffee dose too low. Impeller must be raised.
The gap between the top of the coffee puck
and the bottom of the diffuser screen is too wide.
There is little to no indentation in the center of
the coffee pack from the diffuser screw.
Correct coffee dose.
The diffuser screen is barely touching the upper
surface of the coffee pcuk in the portafilter.
There is a small indentation from the diffuser screw.(1)
There is evidence of the diffuser screen slightly touching
the coffee pack around the outer circumference.(2)