Before Each Use; Normal Operation; Gauges - Quick MILL QM67 EVO Instruction Manual

Before Each Use

• Verify the steam and hot water knobs are both closed and your brew lever is pointing
straight down.
• Fill the reservoir with cold softened water.
• Place whichever portafilter you intend to use into the group head and then turn the
coffee boiler power switch to the on position. If you plan on using the steam or hot
water wand then also turn on the steam boiler power switch.
• Let the machine warm up for 30-45 minutes for optimal performance.

Normal Operation

Gauges

• The top gauge is for your boiler steam pressure. After turning the machine on it will
take approximately 15 minutes before the gauge will show any pressure. Once up to
pressure the gauge will cycle back and forth roughly between 1.2-1.7 bar depending
on the steam boiler temperature setting. Should you need to adjust the steam
pressure please refer to the PID section of the owner's manual.
• The lower gauge is for your pump (brew) pressure. When sitting idle the gauge is
reading trapped pressure in the system and may vary. To get an accurate pump
pressure reading install your backflush disc in the portafilter and lock it into the
grouphead and then raise the brew lever. After a few seconds the pressure should
rise to about 9 - 10 bar. When you make espresso the pressure on the gauge will be
slightly less at about 8.5 - 9.5 bar which is normal. This can be helpful in setting up
your grinder. If your pressure goes to 9 - 10 bar with the backflush disc, but when you
make espresso it is less than 8 bar then that means you need to go finer with your
grind which will create more resistance to raise the pressure. Should you need to
adjust the pump pressure please refer to the maintenance section of the owner's
manual for instructions on setting the pump pressure.
QM67 Dual Boiler Espresso Machine
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