INSTALLATION MANUAL
– install
Slim Jim Installation manual
page 14
12. Mount a portafilter with blind-filter in one of the groups and activate that group. After the pre-
infusion cylinder is filled the pressure should increase rapidly to about 9 bar on that groups’
pressure gauge, if not, adjust the pump-pressure (see Figure 10).
Note that lowering the pump-pressure will not have an effect on the pressure gauge as there is a
check-valve in the coffee system. De-activate the group, lower the pump-pressure and then re-
activate the group to check. Remove the blind filter after this initial adjustment.
13. Press the mix-water button to see if water is flowing from the spout (this will be at very low flowrate
as there is no steam pressure and thus no hot water yet).
14. Check the machine for leaks.
Figure 10. How to adjust the pump-pressure. Undo the locking nut, then twist set-screw to correct the
pressure. Tighten the locking nut when done. Re-check brew-pressure after tightening the locking nut.
decrease
pressure
increase
pressure
set screw
locking nut
