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USER MANUAL - operation 

Slim Jim User manual 

 

page 9 

Steaming 

The Slim Jim has two identical mechanical steam 

valves that come in two versions: “twist-knob” and 

“flip-flop”. The twist-knob version can optionally be equipped with foot operated solenoid valves.  

Before steaming milk it is necessary to open the valve for a short while to purge water from the steam 
wand and heat up the wand and valve. The purged water is condensate from steam coming in contact 
with the cold tubing, valve and wand. Position the tip of the steam wand over the drip tray when 
purging the condensate. 
Directly after steaming milk, flush the steam wand with a little steam and clean the tip of the steam 
wand with a damp cloth. For hygienic reasons, do not use this cloth for anything other than cleaning 
the steam tip. 

 

Twist the valve-knob to open/close and adjust 
the steam flow. From fully open to fully closed is 
about ½ turn, there is no need to close the valve 
firmly. 
If the optional foot-operated steam valve is 
mounted, do not fully close the mechanical 
valve. 
 
Move the knob of a flip-flop valve in any 
direction to open the valve. The knob will lock 
into position when moved far enough from the 
central position. 

Figure 10. The right hand steam valve (twist-knob version).  

 
When the optional foot operated solenoid valve is mounted, the knob is used to adjust the flow of the 
steam only. The solenoid valve is opened and closed by an air-switch that is activated by a bellows on 
the floor. Of course, when the mechanical valve is turned close, no steam will flow from the wand. 

Note!  

It is advised not to decrease the steam power by lowering the steam boiler temperature. A lower boiler 
temperature will reduce the amount of steam that can be produced and the temperature of the mix-
water dispensing.  

 

Pre-infusion cylinder 

 

The piston rod will rise up during the initial stage 
of a brew. A double spring assembly inside the 
pre-infusion cylinder assures a slow-starting and 
gradual pressure build-up to about 3 bar when 
the maximum displacement of the piston is 
reached. 

Figure 11. Piston-rod ends of the dual-spring pre-infusion cylinders. 

 
At the initial stage of a brew, water is fed onto the coffee-bed and into the pre-infusion cylinder. The 
water will flow in the direction of the least back-pressure. At start the coffee-bed will have no back-
pressure but once the coffee is wetted, dominant water-flow changes towards the pre-infusion 
cylinder. Pressure gradually increases until the cylinder is completely filled and all water has to flow 
through the coffee-bed. From that moment brew-pressure quickly increases to pump-pressure. 

 Caution!  

The piston-rod of the pre-infusion cylinder can become very warm. 

Содержание Slim Jim mirage

Страница 1: ...Slim Jim User manual page 0 User manual Slim Jim espresso machines Original instructions Document ID Sup Tum Eng Date of issue December 20 2018 Revision date September 10 2021 ...

Страница 2: ...tings in the Barista menu 16 Sub menu TEMPERATURE SETTING 17 Sub menu VOLUME SETTING 17 Sub menus TIMED ON OFF and TIME DATE 18 Pump pressure 19 Check 19 Adjust 20 Machine cool down 20 Daily to weekly maintenance 21 Use hot water from the machine 21 Clean body 21 Clean steam wand 21 Remove filter basket 21 Clean filter holder 22 Back flush group 22 Clean group screen check and replace group seal 2...

Страница 3: ...ns in order to avoid a hazard The new hose sets supplied with the appliance are to be used Old hose sets should not be reused Intended use of the appliance is restricted to well trained personnel only The appliance must be installed in locations where it can be overseen by trained personnel The appliance may not be left unattended when there is the possibility that children and or vulnerable peopl...

Страница 4: ...te 30 0 50 ppm Chloride 0 0 30 ppm Silica 0 0 5 ppm Odour and colour clean fresh odour free clear Taste influencing organic compounds not present Chlorine Hypochlorite Chloramines Iron Lead Manganese SCAA Technical Standards Committee 2009 water properties for optimum taste Values from The SCAE water Chart 2015 Table 1 Showing parameter values for water meant to brew coffee with Water with propert...

Страница 5: ...play only on Triplette shot timer and or temperature 5 Capacitive interface and display of controller 6 Left hand group 3 digit display shot timer and or temperature 7 Volume switch left group 8 Program continuous button left group 9 Group indicator light left group 10 Group brewing handle left group 11 Group left 12 Two stage pre infusion cylinder 13 Hot water spout 14 Hot water toggle switch hot...

Страница 6: ...an be dis connected individually The heating element of the steam boiler consists of a lower middle and upper section Notes The boilers will not heat up when the HEAT switches are in the OFF position With the main switch in OFF position the boilers should not heat up irrespective of the position of the HEAT switches With a malfunction heating may be ON even with the main switch in OFF position 1 H...

Страница 7: ...ination with the main switch You are advised NOT to perform this procedure at any time as you will probably need a technician to re program the controller afterwards button A touchpad has 5 momentary push buttons with internal indicator LED The upper button 2 LEDs is an on off group switch with programming function Buttons are used to start a pre set volume A pre set volume can be stopped before t...

Страница 8: ...displays Factory setting is that a 3 digit display will display the temperature of the corresponding group during idle It changes to a shot timer when the group is activated The shot time will be replaced by the boiler temperature after a user adjustable amount of seconds see Figure 7 Shot time The shot time gives an excellent indication of the brew process and can assist the trained barista to re...

Страница 9: ...for dispense of water directly from steam boiler Push button switch for timed dispense of non sputtering mix water Figure 9 The hot water toggle switch and mix water push button switch Mixed water Press the mixed water push button switch down briefly The flow will stop when the pre set time has elapsed or when the switch is pressed down briefly again whichever comes first A technician can manipula...

Страница 10: ... version When the optional foot operated solenoid valve is mounted the knob is used to adjust the flow of the steam only The solenoid valve is opened and closed by an air switch that is activated by a bellows on the floor Of course when the mechanical valve is turned close no steam will flow from the wand Note It is advised not to decrease the steam power by lowering the steam boiler temperature A...

Страница 11: ...window Duette with temperature in F the Duette does not have a 3rd group Change individual boiler to ECO and back The factory set operational temperatures of the boilers are 93 0 C coffee and 125 0 C steam 199 F and 257 F respectively 125 C is equivalent to approximately 1 35 Bar steam overpressure Each boiler can be individually set to a lower ECO temperature 50 C 122 F for the coffee boilers 70 ...

Страница 12: ...mperature coffee boilers 50 C steam boiler 70 C operational window touch menu window touch stand by window choose NO HEAT or ECO MODE touch touch no heat window NO HEAT the machine will cool down eco window ECO the machine will settle at lower set temperature touch or operate a Bastone touchpad touching the central button at NO HEAT or ECO will return the machine to operation first window A machin...

Страница 13: ...centre line in all groups There is no distinction between open or closed circuit With a malfunctioning sensor the cool valve will not open but the machine will remain functional A non functional cool valve may lead to overheating of the groups and rapid decay of the flow meters in the machine Have the machine repaired as soon as possible operational window a distribution block sensor malfunction i...

Страница 14: ...ing the back flush program the group valve of that group will de activate but the back flush routine will continue on the other group s When all groups are manipulated the group valves will all close but the pump will finish the back flush routine Flow meter error When flow rate of a group becomes very low or stops the flow meter is not able to accurately measure the amount of water passing throug...

Страница 15: ...able that will register the temperature in the coffee bed during extraction and can be helpful to check functioning of the different groups Of course you can also check the mix water temperature with this item Figure 12 Temperature sensor in filter basket mounted in bottomless portafilter Although the input of the external sensor is displayed without delay the temperature shown will always be lagg...

Страница 16: ...procedure 1 get the controller in programming mode touchpad press hold the upper button of the left touchpad appr 6 seconds Bastone press hold the push button of the left Bastone appr 6 seconds the top programming LED on all units will start flashing You now have 20 25 seconds to start the following 2 start the brew dispense as normal touchpad shortly press the button to be programmed Bastone note...

Страница 17: ...d digit use to change digit use arrows to construct the password see Note below touch barista menu window choose a sub menu or exit to the operational window Note With firmware versions XPV38 K V W FW ver 1 18 Controller board FW ver 1 23 CONCERTO230_KVW or higher the Barista password has changed from 33333 to 10000 GROUP 1 93 4 GROUP 2 45 6 GROUP 3 93 2 STEAM 124 6 MENU STAND BY EXTERNAL SENSOR C...

Страница 18: ...can consecutively adjust the following parameter range factory increment unit remark water timer 0 5 15 4 0 0 1 s mixed water is timed touchpad Bastone V1Gr1 50 t 1 ml With Bastone units there are only 2 programmable volumes per group The positions with t are only available on a touchpad V2Gr1 V1Gr1 100 V3Gr1 150 t V4Gr1 V2Gr1 200 V1Gr2 50 t V2Gr2 V1Gr2 15 300 100 V3Gr2 150 t V4Gr2 V2Gr2 200 V1Gr3...

Страница 19: ... operational the minute the store opens The day off function will make the pre programmed ON time skip a day An automatically set switch can be overridden manually on the machine at any time After such interference the timer function will continue to run in the background and will perform the next pre set action when it turns up Notes To have the machine react properly to the timer function instru...

Страница 20: ...an actual brew is at the infusion stage i e the approximately stable high pressure reached during a brew Make sure that only a single group is active during this check as multiple users will result in a somewhat lower pump pressure Do not use the mix water during this check as that will also result in some pressure loss Check all groups available and compare the results The pump pressure at the di...

Страница 21: ...n to its ECO temperature of 70 C The coffee boiler which is not isolated will cool down faster and will reach ECO temperature 50 C after 1 5 2 hrs Figure 15 Graph showing typical cool down of the boilers when the machine is turned to NO HEAT when it is at operational temperature If it is needed to cool down the machine quickly turn the heating circuits to OFF and open both steam taps until no more...

Страница 22: ...drip tray grill from the machine and clean it with washing up liquid and a sponge Danger Individual parts can be very hot when maintenance is performed on a machine that has not cooled down sufficiently Clean steam wand Milk easily bakes to the hot inner and outer surfaces of the steam wand and tip Therefore the steam wand and tip should be cleaned with a damp cloth directly after each use Do not ...

Страница 23: ...window is best performed at the end of the day and is very useful as there is no need to repeatedly engage disengage each group individually You should run the clean program twice first with cleaning powder then rinse the blind filter baskets and run the program again without cleaning powder In this second run you quickly empty a blind filter in between pressurising of the groups when the groups h...

Страница 24: ...ll remain flexible for a long time but will harden eventually We advise to check the group seal regularly and replace when needed Materials needed Group screen extractor included in shipment or back end of a fork or spoon Plastic brush included in shipment Coffee dissolving powder included in shipment Replacement group seal when necessary Procedure 1 Pry the group screen gently from the group usin...

Страница 25: ...move the two bolts from the plastic dispersion plate with a short screwdriver see Figure 18 the dispersion plate will fall out Be careful with these screws they have specific length to match the thickness of the dispersion plate Caution The dispersion base remains in the group bottom With the bolts removed the connection between the dispersion base and group bottom is fragile 3 Clean the dispersio...

Страница 26: ...group bottom pull as perpendicular as possible Do not twist the dispersion base TIPs The dispersion base does not come off from the group bottom easily Use two longer M5 bolts to get a grip on the base see Figure 19a b If the protrusion breaks from the base and remains in the group head pull out with needle nose pliers or twist in a wood screw and pull the screw with protrusion from the group bott...

Страница 27: ... that flat jet it is advised to have a technician check the machine diameter of flat jet mm minimum ml minute goal ml minute maximum ml minute 0 6 300 400 450 0 8 700 850 925 1 0 1000 1200 1300 Table 2 Showing range of free flowrates for water of 90 95 C at 9 bar brew pressure for different size flat jets numbers not checked yet Heating element indicator lights A set of indicator lights is found o...

Страница 28: ...nician solve the problem as soon as possible Consistency in programmed volumes Programmed volumes mutate during a few days after installation as during first fill there will be an inflow of about 0 8 litres in the heat exchanger plus another 0 8 litres of fresh water to each group After a few days air content in the coffee water is stabilised Before programming volumes with the Bastones or touchpa...

Страница 29: ...to the machine and set the interface to show its temperature see page 14 to check individual temperatures of brews and or hot water Note Although quick in response the external probe cannot change temperature immediately This is due to 1 the mass of the instrument and 2 sample rate As such the probe can be used to measure real time brew temperature but the temperature displayed will always be lagg...

Страница 30: ...d 3 month service monthly maintenance PLUS Grease steam wand ball with food safe grease and check play between nut and ball of steam wand replace O ring and or nut when necessary Check anti vacuum valve for leakage Check safety valve on steam boiler for leakage Check opening pressure of expansion valve Check free flow rate per group clean flat jets when necessary 6 month service quarterly service ...

Страница 31: ...UAL maintenance and service Slim Jim User manual page 30 Service Record machine number __________________ installation date _________________________________ Date Technician Task Comments group restrictor size ...

Страница 32: ...USER MANUAL maintenance and service Slim Jim User manual page 31 ...

Страница 33: ...bility that you touch a live wire Danger We cannot be held responsible for damage and or injuries resulting from actions performed on our machines by non qualified personnel Any qualified technician working on the machine is urged to thoroughly read the latest edition of the Technical manual which can be obtained via support keesvanderwesten com When seeking contact with the e mail address above p...

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