La Marzocco GS/3 Owner's Manual page 16

5. Cleaning the body.
Wipe the stainless steel surfaces with a
soft, non abrasive cloth in the direction
of the glazing marks, if any. Do not use
any alcohol or solvents whatsoever on
painted, imprinted, or plastic parts in
order not to damage them. Clean the
side panels using a soft cloth. Do not
spray the keypad or display with any
liquid. Clean only with a damp soft cloth.
6. Cleaning the hot water and steam
nozzles.
Steam nozzles must be
immediately after use with a damp
cloth and by producing a short burst of
steam so as to prevent the formation of
deposits inside the nozzles themselves,
which may alter the flavor of other drinks
to be heated. Hot water nozzles must be
cleaned periodically with a damp cloth.
If milk residue is present on the steam
wand, soak the tip in a container of hot
water, then it will be possible to wipe
the tip clean. Repeat process if residue
remains.
16
NOTE: This cleaning schedule is based
upon a moderate to average use (20-
300) cups per day. If machine use is less
than moderate then this schedule may
be adjusted accordingly.
Cleaning (Periodic)
1. Draining Boilers. Both the coffee boiler
and the steam boiler may be drained and
refilled to reduce the chance of mineral
deposits build up on the inside walls of
the inside surfaces. Additionally this
draining process can be used to remove
cleaned water that has a bad odor or taste.
Drain the Steam Boiler: Turn OFF the
machine. Remove the left side panel
assembly. Locate the ball valve on the
bottom left side of the machine. Hold the
ball valve with one tool and remove the
brass cap on the end of the valve. Move
the espresso machine close to a waste
drain and tip machine at an angle to
point the valve into the waste drain.
Drain the coffee boiler: Turn OFF the
machine. Using adequate protection
or an appropriate tool, loosen the
expansion valve until water begins to
flow freely. Then remove the group cap
cover and loosen the bleed screw. When
finished draining empty the drain box
assembly.
WARNING
THE EXPANSION VALVE CAN DISCHARGE
WATER AS HOT AS 200°F / 93°C.
ADEQUATE PROTECTION FOR HANDLING
THIS COMPONENT IS NEEDED BEFORE
ATTEMPTING TO ADjUST.
2. Clean the water reservoir. The water
reservoir needs to be cleaned periodically
to ensure that no algae forms on the
inside surfaces. To clean first remove
the water reservoir form the machine.
Disconnect the clear plastic water intake
hose. Unscrew all screws from the cover
to separate the parts. Wash all parts
with warm soapy water. All parts are
dishwasher safe.