LAVAZZA Pininfarina Maintenance Manual For Technical Assistance page 48

Rear part maintenance
GB
44
Using a 12 mm. spanner unscrew the nut of the
teflon pipe while counter-screwing the nipple of the
pipe socket with an 11 mm. spanner.
Unscrew the nipple from the pump guide to reach
the holding gasket.
Remove the fixing spring of the thermostat (A) from
its seat using a pair of long-nosed pliers as shown
in the figure.
µ