Schaerer Coffee Arc C Manuale
Schaerer Coff ee Art C
Generic 24mo Preventative Maintenance
Standard Operating Procedures
Version RD20210723
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
Table of Contents
Preventative Maintenance
Section Title
1. Contents of Receivables - Service Kit
2. Required Tools
3. Cleaning Procedure
4. Multi-Point Inspection
5. Part Replacements
6. Additional Adjustments
7. Calibration
7A. Calibration Overview
7B. Recipe Settings (By Blend)
7C. Touch Screen Calibration
7D. Reference Grinders
7E. Drink Time Calibration
7F. Pump Pressure and Drink Volume Check
7G. Air Valve Adjustment
8. Concluding Actions
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
1. Contents of Receivables - Service Kit
Service Kit 1 Parts
Part Number Part Description Qty.
33.7007.3222 Red Automat UPPER Piston O-ring 1
33.7007.3223 Red Automat LOWER Piston O-ring 1
33.7006.2693 Black Automat O-ring 1
33.7006.3654 or
33.7006.5240 Overpressure Valve 12bar 1
Important Note:
• Please reference any additional memos provided in the PM work order email
from the SEB Professional PM team for any further parts and instructions re-
quired to complete this preventative maintenance.
• Please ensure any open service items previously dispatched by the SEB Pro-
fessional Dispatch team are covered during this PM and a separate work
order is lled out.
• SP might receive FLUSH VALVE part number 33.7006.1029 or 33.7006.6246.
Service Kit 2 Parts
Part Number Part Description Qty.
33.7007.3300 Brewing Unit 30 Gram 1
33.7006.1029 or
33.7006.6246 Flush Valve 1
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
2. Required Tools
1. Service Card
2. Gram Scale
3. Clamp Multimeter - for measuring AC Voltage and checking Current
4. USB Flashdrive pre-loaded with latest settings (8 gb or less)
5. Food Safe Lubricant (Part Number 33.7006.7339)
6. Basic Hand Tools
• Short Hex Screwdriver
• Long Hex Screwdriver
• Metric Nut Drivers Set 5-13mm
• Metric 1/4” Socket Set 5-13mm
• 3/16” Flat Blade Screwdriver
• 1/4” Flat Blade Screwdriver
• No. 1 Phillips Screw Driver
• No. 2 Phillips Screw Driver
• Combination Wrenches Metric 7mm - 17mm
• Adjustable Wrench 10”
7. Grinder Adjustment Knob
8. Measuring Cup (More than 40oz)
9. Cleaning Supplies
• Vacuum
• Automat brush
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
3. Cleaning Procedure
1. Run a cleaning cycle with the cleaning tablet. Follow the
instructions on the screen.
• Clean the grounds bin, undercounter grounds bin, and
surrounding area.
• Clean the drip grill and drip tray
2. Remove the bean out of the hoppers. Remove and clean the empty
hoppers with a clean, moist cloth.
NOTE: It is advised to dispose of the beans (as the calibration
REQUIRE fresh beans), but this will be to the discretion of customer.
3. Once the cleaning cycle is complete, clean any remaining
components. Make sure the bean hoppers are completely dry
before re-inserting.
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
4. Multi-point Inspection
1. Perform a water drainage of the boilers
CAUTION: Once the water drainage routine is started the machine will allow hot
water to be released from the hot water wand, coff ee spout, and steam wand (if
applicable). Please exercise caution when activating the routine to prevent injury.
Perform a water drainage using the water drainage function in the programming
menus:
1. Insert Service Card and type your pin (1000)
2. Tap System - Test/Calibration - Water drainage
3. Confi rm that you would like to perform the water drainage
A timer will appear on the screen and start counting down once the automat
moves into brewing position. Once this timer is below 2:00 minutes turn off the
water supply and allow the system to depressurize. Remove power from the
machine once there is no water fl owing from the hot water wand (and steam
wand if applicable).
2. Once the water drainage is complete, turn off water supply and
power off the machine to begin checking the coff ee boiler for
calcium.
• Remove the coff ee boilet inlet and clean any additional calcium with
wire brushes.
Checking for calcium
CAUTION: Please be aware that the boiler and its components may still be hot.
Please exercise caution when handling any of these components.
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
3. Remove all panels for the machine. Check for any leaks or broken
parts and briefl y clean up any dirty areas.
• If additional issues or maintenance/ repairs are needed, please
contact Tech Support and ensure a separate work order is
created outside of this service.
Once power has been removed, proceed with disconnecting the center boiler nut
as shown in the following illustration.
Coff ee Boiler
Once the boiler nut is disconnected, you will have the ability to insert your long
Schaerer screwdriver until it touches the metal at the bottom of the boiler.
• If you feel any crunching or debris inside which impedes the movement of
the screwdriver to the bottom of the boiler then you have calcium present.
• If you can insert the screwdriver and feel the metal at the bottom of the
boiler then your check inside the boiler is complete.
Please note: if you can insert the screwdriver to the bottom of the boiler and
don’t feel any calcium, this is not a guarantee that there is no calcium present.
4. Multi-point Inspection (cntd)
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
Next, using a 14mm and 17mm open ended wrench, remove the overpressure
valve from the boiler outlet manifold and replace with the new overpressure valve.
Please see the illustration below for the location of the coff ee overpressure valve.
Replace the overpressure valve - part number 3370063654 or 3370065240.
Coff ee Art C
What to do if calcium is present (next steps)
If you fi nd calcium inside the boiler(s), notify our Technical Support team
and request next steps
4. Check the drain and water supply hoses to ensure proper routing.
4. Multi-point Inspection (cntd)
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
1. Replace the brew unit (automat) and thoroughly clean the automat
compartment.
5. Part Replacements
2. When fi nished, place the panels and bean hoppers back onto the
machine and power on.
Schaerer Coffee Art C - Generic 24mo Preventative Maintenance SOP
5. Part Replacements (cntd)
2. Flush Valve Replacement
Note: ensure the water is off and the
boiler is still cooled down from the
water drainage.
1. Remove drain hose clamp and drain
hose from the drip tray
2. Remove screw and knurling nut from
both sides of the drip tray, remove
drip tray from machine.
3A. Remove the center plate
3B. Remove both screws used for mounting
the center plate (2.5mm allen screwdriver)
3C. Remove both screws that hold the right
cover plate (3mm allen screwdriver or
Long Schaerer screwdriver)
Disconnect the manometer tube and remove
the right cover plate from machine.
• Gently swivel the fl ush
valve bracket back, toward
the pump and remove the
brass fi tting(s) (circled with
orange) from the bottom
port of the valve.
• Disconnect the Tefl on
tube from the top and the
electrical wires from the
side.
• Remove the valve and
replace
3A 3B
3C
Reassemble all components in reverse order
(See next page for instructions if the fl ush valve received diff ers than the fl ush valve
inside the machine.)
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