Vetrano Espresso Machine
12
Setting Pump (Brew) Pressure
Warning:
This adjustment requires removing the shell and making an adjustment with the
machine plugged in so it is very important to exercise extreme caution. Failure to do so may
cause injury, and or electrical shock. Chris‟ Coffee Service and its distributors assume no
liability for failure to follow this warning.
Unplug the machine from the outlet and then remove the outer body panels.
Plug the machine back into the outlet and then turn the power switch on.
Locate the pump in the back right corner of the machine.
Loosen the lock nut labeled “
A
” with an adjustable wrench.
Raise the brew lever and then turn the adjustment screw
labeled “
B
” Turning clockwise will increase the pressure,
counter clockwise to decrease the pressure. Recommend
setting is 9 bar using the lower pump gauge as reference.
After setting the pressure, lower the brew lever and then
tighten the locknut labeled “
A
”
Turn the power switch off and then unplug the machine from the outlet before putting the
outer body panels back on.
Note:
After adjusting the pump pressure then you may also need to adjust your grinder to
compensate for the change in pump pressure. If you are getting a fluctuation of pump pressure
when you raise the brew lever then you may need to install a water pressure regulator which
can be found here:
http://www.chriscoffee.com/products/home/plumbing/pressregwithgauge
