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WMF combiNation S/S4/ESeries 8600, Operating Instructions Manual, Page: 69 / 75

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WMF combiNation S/S4/ESeries 8600 Operating Instructions Manual Download Page 69

 

148 

11

 

Error messages and remedial action 

 

11.1

 

Error messages 

 
Your WMF combiNation 

S

 has a built-in diagnostic pro-

gram. Any errors occurring will appear in the display 

4

.   

However, the following error messages may also be due to 
a power failure.  

 

 

 

 

 

The 

 symbol indicates that an error has occurred or that 

the operator’s attention is required.  
 
 
 
 

 

 

The following error messages can appear at present: 
 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for combiNation S/S4/ESeries 8600

Page 1: ...80 WMF COFFEE MACHINES Operating instructions WMF combiNation S S4 E Series 8600 Edition 8 Printed in 03 08 Item No 33 0914 2000 ...

Page 2: ...rwards and will find it was worth it after all In your own interest please follow all safety and cautionary instructions This will help to avoid accidents and technical malfunctions Never entrust the machine to anyone who is not familiar with the operating instruc tions Keep these operating instructions near the machine This will allow your operating per sonnel easy access to information at any ti...

Page 3: ...Macchiato etc 97 7 6 3 Quantity pre selection 98 7 6 4 Manual input 98 7 7 Hot water dispensing 100 7 8 Steam dispensing 101 7 9 Coffee grouts collector 102 7 10Unit number accounting 103 7 11Waiter accounting system 104 7 12Vending units 105 7 12 1Coin checker token checker 105 7 12 2 Chip card reader 108 7 12 3Coin changer 109 7 13Switching off the machine 112 8 User guide 113 8 1 Setting the mi...

Page 4: ... Data 131 8 7 3 Features 132 9 Timer program 132 9 1 Timerstatus 133 9 2 Set Timer 133 9 3 Copy Day 134 9 4 Timer Overview 134 9 5 Timer Delete 134 9 6 Timer Info 134 10 Care of the machine 135 10 1Daily cleaning 135 10 1 1Cleaning the machine 136 10 1 2Cleaning the combination spout 138 10 1 3Intermediate cleaning the combination spout 142 10 1 4Automatic frother rinsing 144 10 1 5Cleaning the ma...

Page 5: ...84 2 3 5 6 7 8 9 10 11 17 15 4 12 13 1 16 14 18 ...

Page 6: ...anual input cleaning shaft 4 Display 5 Control panel 6 Rotary knob for steam dispensing 7 Combination spout 8 Steam nozzle 9 Drip tray 10 Hot water key 11 Hot water spout 12 Grouts collector 13 Clamping valve 14 Height adjustable front door 15 On off key switch 16 Milk intake hose 17 Beverage keys 18 Waiters lock optional ...

Page 7: ...k drinks are dispensed via a spe cially designed combination spout which also enables per fect milk froth and hot milk to be prepared The height adjustable spout can accommodate cup heights from 70 to 140 mm The front door is also height adjustable to enable jugs up to a height of 280 mm to be filled without any difficulty Each portion is freshly brewed at the touch of a button to guarantee high q...

Page 8: ...re is a scalding hazard Take care when the spout or front door is raised always make sure a cup is in position before dispensing any beverage Caution Health hazard Follow the instructions on the pack when using the cleaning beverage The cleaner is corrosive Cleaning fluid flows out of the combination spout 7 while cleaning is in progress Wait until prompted by the display before placing cleaning t...

Page 9: ... horizontal and stable base Machine shutdown holidays 1 If the machine is to be shut down for an extended period a general cleaning should be carried out beforehand and the grouts collector must be emptied If there is any risk of freezing the machine should be drained beforehand to prevent frost damage In such cases call in the WMF customer service personnel in good time 2 After several weeks of s...

Page 10: ...ervice engineer Even in the case of light use maintenance should be carried out at least once a year and the water filter if fitted should be replaced 5 Technical data Rated power 3 3 kW 6 3 kW Hourly output Espresso Café Crème Filter coffee 300 cups 190 cups 190 cups 300 cups 240 cups 220 cups Hot water output total 24 l h 48 l h Coffee beans hoppers each 1 05 kg Ground coffee hopper 500 g Electr...

Page 11: ...face should be ensured The height of the sup porting surface from the floor surface should be not less than 700 mm and not more than 900 mm Use of the area below the machine for accessories e g water filter or grouts sepa rator requires a clear height of between 500 and 670 mm depending on the configuration and local installation condi tions If the machine connections are to be routed down through...

Page 12: ...rmed up the display shows the following If the coffee beans hopper and or ground coffee hopper are full see chapter 7 2 on page 91 and the machine is ready for operation coffee and hot water can be dispensed by pressing one of the beverage keys 7 2 Filling the coffee beans hopper and or ground coffee hopper To fill the coffee beans hopper 1 remove the hopper lid and fill the hopper with coffee bea...

Page 13: ...m the machine the milk tank supplied e g in the WMF auxiliary cooler or as shown here the Tetra Pak has to be connected to the combination spout 7 of the machine by the milk intake hose 16 If this is not the case proceed as follows Slide the complete front door 14 upwards until the clamp ing valve 13 is easily accessible Do this by grasping the front door at both sides and sliding the front door u...

Page 14: ...ood time to ensure correct operation of the coffee ma chine 7 4 Beverage key selection and labelling Depending on the machine version chosen you have either 5 or 9 beverage keys and one hot water key at your dis posal shown here control panel 5 with 9 beverage keys 17 You can assign each beverage key 17 individually with your chosen coffee beverages Around 40 pre set standard beverages are provide...

Page 15: ...ight hand side of the key strip and while still pressing slide the key strip out sideways until the key strip comes out of its holder Remove the key strip from its holder You can now replace the existing labels with the ready made labels supplied with the machine Alternatively you can print your own labels on plastic cut to size and use these instead Note Ensure the black foil is always replaced c...

Page 16: ...of the combination spout 7 The clear height under the spout can be varied between 70 mm and 140 mm Caution Beware when adjusting the height of the combi nation spout 7 or the front door 14 Danger of crushing To fill jugs over 140 mm high e g thermos jugs the com plete front door 14 can be slid upwards Grasp the front door at both sides and slide it upwards using gentle pressure Also push the combi...

Page 17: ... prepare two cups of espresso proceed as follows 1 Place two espresso cups beneath the combination spout 7 You may need to adjust the height of the com bination spout depending on the size of cup used see chapter 7 5 on page 95 2 Press the 2x key then press the key labelled Espresso on the control panel 5 to set the two cup function see 7 4 on page 93 3 While brewing is taking place the green ligh...

Page 18: ...ration coffee beverages with milk can be dis pensed by pressing one of the beverage keys The follow ing message appears in the display If for example you want to prepare two cups of cappuc cino proceed as follows 1 Place two cappuccino cups beneath the combination spout 7 You may need to adjust the height of the com bination spout depending on the size of cups used see chapter 7 5 on page 95 2 Pre...

Page 19: ... as appropriate In the example shown here a Latte Macchiato was selected and the quantity increased to 6 using quantity pre selection The display shows the pre selection and progress of brew ing in this example the first of six brews is taking place Six brewing cycles are now carried out one after the other Remember to place a fresh cup under the combination spout each time The quantity pre select...

Page 20: ... the coffee beverage selected and the progress of brewing in the form of a filling cup Quantity pre selection is not pos sible in this mode 6 At the end of the brewing process the freshly prepared coffee beverage is ready The used coffee grouts are collected in the built in coffee grouts collector 12 All the key lights are reactivated again and the display shows the Ready message The machine is re...

Page 21: ...hen a pre defined quantity has been dispensed 2 Start stop function Press the hot water key 10 to start dispensing Press again to stop 3 Free flow Dispensing continues as long as the hot water key 10 is pressed Your WMF customer service engineer will set your pre ferred alternative for you as required During hot water dispensing the beverage selected is shown in the display In the example shown he...

Page 22: ...owly towards the left direc tion to start steam dispensing 3 Once the drink is hot immediately close the rotary steam knob 6 by turning it to the right direction 4 After heating up the drink swivel the steam nozzle 8 towards the drip tray 9 and briefly open the rotary steam knob 6 again After closing it wipe over the steam nozzle 8 with a damp cloth Frothing milk Caution Burning hazard When the ma...

Page 23: ...9 Coffee grouts collector The used coffee grouts are collected inside the machine in the coffee grouts collector 12 The coffee grouts collector has sufficient capacity for approximately 40 brews jugs to 75 brews cups Caution Injury hazard Beware of danger of crushing when emptying the grouts collector 12 The display 4 will warn you when the coffee grouts collec tor 12 is full A message asking you ...

Page 24: ...nd can cause dam age to the machine A special version is also available in which the coffee grouts are ejected directly into a bin under the counter provided by the customer This should be ordered sepa rately This enables larger quantities of grouts to be col lected Your WMF customer service engineer will set the maximum collection quantity on the machine 7 10 Unit number accounting Note For secur...

Page 25: ...ing System or in conjunction with an accounting system The coffee machine is equipped with a waiter lock 14 and connected to the accounting unit Beverages are released by inserting authorised waiter keys and if table numbers are in use by inputting a table number in the machine display Beverages dispensed for each waiter or table number are calculated via the external accounting system or the WMF ...

Page 26: ... the till If the WMF coffee ma chine shows a credit for a beverage the beverage can be dispensed either freely or by inserting the appropri ate waiter key 7 12 Vending units 7 12 1 Coin checker token checker Using for the first time The WMF combiNation S can be equipped with a coin checker or token checker for self service mode Note The coin checker token checker must only be con nected and put in...

Page 27: ...in slot are collected in the lockable coin box The coin checker can be set to 2 different selling prices If the coin checker fails to operate press the orange coin re turn key The coins or tokens can then be removed from the coin return If beverage dispensing is disabled for in stance because machine cleaning is taking place coin ac ceptance is disabled Any coins inserted drop down through the ret...

Page 28: ... the Multicounter SE soft key takes you into the menu where the price setting is possible Choose the beverage you wish to set a price for by pressing the appropriate beverage button Use the numbers pad to input the price between 0000 00 and 9999 99 and confirm with OK Now you can choose another beverage Price 9999 99 means this beverage button is blocked ...

Page 29: ...ensing a single bev erage free e g to dispense a jug of coffee Note For security purposes we strongly advise allocat ing an accounting PIN number to the Free key set ting or to beverage release see chapter 8 3 Access authorisations on page 122 To switch off the card checker press the Free key in the display to change over to free dispensing of all beverages The card reader can be set up for a vary...

Page 30: ...ur that you cannot correct yourself call WMF Customer Service Do not switch the ma chine on again until the fault has been remedied Rated voltage 230 V Dimensions Height Width Depth 655 mm 190 mm 450 mm Weight approx 20 kg The manual dispensing softkey in the selection menu in the coffee machine display 4 allows the option of either releasing all the beverages or only dispensing a single bev erage...

Page 31: ...few coins manually Automatic emptying to a preset level If your coin changer is programmed for this function press the keys A C to pay out coins until the levels in the tubes reach the preset levels If the number of coins already in the tubes is the same as or less than the level no coins will be paid out Setting prices See chapter 7 12 1 Coin checker token checker Coin devise menu In this sub men...

Page 32: ...nu you can set the input of the maximum change amount This option can only be activated if ei ther the option Multiple sale has been set to YES or with obligation to buy has been set to YES Use the numbers pad to input the amount of maximum change Maximum credit If this value is exceeded no more coins will be ac cepted The last coin inserted before the maximum credit set is accepted i e overpaymen...

Page 33: ...e en closed Quick Reference sheet where all the cleaning steps are described in detail 7 13 Switching off the machine Important Daily cleaning must be carried out before switching off the machine see chapter 10 1 on page 135 Turn the key switch 15 to position 0 Off Important After switching off the machine the main shutoff valve on the water inlet must be closed and the main power switch to the ma...

Page 34: ...layed Pressing anywhere on the display will produce a request for access authorisation PIN number see chapter 8 5 on page 124 Pressing the soft key takes you into a second level where a selection menu is available If you have allocated access authorisations PIN numbers see chapter 8 5 on page 124 on pressing the soft key you will be asked for your PIN number Key in your PIN number When the correct...

Page 35: ...k to a previous menu level or quit without saving exit Context sensitive help or additional information Clear symbol Increase or reduce settings Go to beginning or end of list Scroll up or down one page of list Scroll back or forwards through dialogues with sev eral pages 8 1 Setting the milk froth quality The machine is ready for operation and the following dis play appears Press the soft key to ...

Page 36: ... steam 8 there is a scalding hazard By pressing the Test soft key at any time during setting you can activate milk froth portioning to check the result of the changes you have made to the settings Press the soft key to accept the new settings or press to quit the setting menu without accepting the changes 8 2 Beverage settings The machine is ready for operation and the following dis play is shown ...

Page 37: ...he soft key to scroll to the next setting page or press the soft key to scroll one page back Depending on the setting options for the beverage selected 3 to 6 setting pages are available in the case of coffee beverages without milk for example the milk setting pages are not available 8 2 1 Quantity of ground coffee To change the quantity of ground coffee enter the bever age settings menu see chapt...

Page 38: ...se the and or soft keys to scroll to the setting page where the soft key appears Then press the soft key The following display then appears with the symbol highlighted in white activated Press the and or soft keys to alter the quantity of water starting from the current setting The change is dis played both graphically and as a percentage in relation to the current setting Caution Scalding hazard ...

Page 39: ...calding hazard By pressing the Test soft key at any time during setting you can activate a test brew to check the result of the changes you have made to the settings Press the soft key to accept the new settings or press to quit the set ting menu without accepting the changes 8 2 4 Crema Quality To alter the crema quality enter the beverage settings menu see chapter 8 2 on page 115 choose the sett...

Page 40: ...key One of the following displays appears depending on whether milk or milk froth has been selected with the selected symbol or highlighted in white acti vated Press the and or soft keys to alter the quantity of milk starting from the current setting The change is dis played both graphically and as a percentage The quantity of milk froth is altered in the same way as the milk quan tity Caution Sca...

Page 41: ... here milk froth Milk Foam was selected By pressing the Test soft key at any time during setting you can activate milk or milk froth portioning to check the result of the changes you have made to the set tings Press the soft key to accept the new settings or press to quit the settings menu without accepting the changes 8 2 7 Beverage preparation sequence To set or alter the sequence in which the i...

Page 42: ...ap pears Then press the Beverage soft key The following display appears This list contains around 40 standard beverage settings which you can allocate to the individual beverage keys By using the and or arrow keys you can scroll one page forward or back through the list until you find the beverage you are looking for Important When you alter the beverage selection the individ ual settings are over...

Page 43: ...will be asked for your PIN number Key in your PIN number When the correct PIN number is inputted the selection menu is displayed If you wish to alter your machine settings press the soft key in the selection menu In the menu that appears next you are asked to choose whether you wish to alter the beverage settings machine settings reset timer program date time or the contrast Choose the Machine sof...

Page 44: ...ct PIN number is inputted the selection menu is displayed If you would like to alter the date and time shown in the display press the soft key in the selection menu In the menu that appears next you are asked to choose whether you wish to alter the beverage settings machine settings reset timer program date time or the contrast Choose the Time Date soft key In this menu you can now alter the date ...

Page 45: ...erage settings machine settings and setting the date time The correspond ing soft keys are available in the selection menu The soft key is additionally displayed This allows access rights to be extended by keying in the corresponding PIN number Level 3 Accounting Access authorisations PIN numbers unit number accounting and manual dispensing The corresponding soft keys are available in the selectio...

Page 46: ...anage the access authori sations PIN numbers the following selection menu will appear including the soft key If you do not have that authorisation the soft key will not appear On pressing the soft key the access control menu appears showing the PIN numbers currently set for levels 1 to 3 Cleaning Setting Accounting in the example shown here the number is 0000 in each case You can allocate your own...

Page 47: ...ill appear in which you can key in the new PIN number The number keyed in will be displayed in clear You can correct the number input one digit at a time by pressing the soft key Press the soft key to accept the new settings or press to quit the menu without accepting the changes For example if the PIN number 9876 has been chosen for level 2 Setting the following display will appear if no PIN numb...

Page 48: ...ng one s own blends of freshly ground coffee beans The WMF combiNation S4 is equipped with four sepa rately controllable coffee grinders This machine only op erates with coffee beans A small quantity of ground coffee can also be processed via the manual input if desired The machine user guide is the graphic touch screen display As well as the blend proportions for the four coffee bever ages the ma...

Page 49: ...antity of ground coffee type of coffee degree brewing temperature brewing aperture size brewing pressure water hardness and general condition of the machine e g limescale connections power water sequence wear etc 8 6 3 Filling the coffee hoppers The four coffee beans hoppers have a bayonet fitting and can simply be removed for filling If there are still beans left in the hoppers push the slide pro...

Page 50: ... weight This is done by pressing the desired bars in the touch screen display Press once on the corresponding coffee grinder bar to choose one part or press twice to choose two parts If the bar is pressed three times the proportion resets to zero Example 1 You want to prepare a Cappuccino using coffee from grinder 1 only So press bar 1 on the touch screen display The following display appears Use ...

Page 51: ...rogram another coffee combination 8 6 5 Beverage settings You can also refer to the Beverage Settings chapter in your combiNation S operator s manual with one small differ ence In the second step of the setting options you can select the proportions of coffee to be used by weight for the default setting for each beverage To do this press the desired bars directly in the touch screen display see ch...

Page 52: ...ible to brew coffee into pots in an optimized brewing time 8 7 2 Technical Data Rated power 3 3 kW 6 3 kW Hourly output Espresso Café Crème Café Crème with jet brewing 300 cups 190 cups 24 pots 300 cups 240 cups 30 pots Hot water output total 24 l h 48 l h Coffee bean hoppers 1 05 kg each Electricity supply 1 N PE 50 Hz 230 V 3 N PE 50 Hz 400 V External dimensions Width Height with coffee bean hop...

Page 53: ...on E are done as described in chapter 8 2 Exception the button is not available The adjust ments regarding the quality of the crema are done by the service technician during initial operation 9 Timer program To set the timer or to alter previous timer settings or to call up information about the timer press the soft key in the Selection menu Alternative possibility Press the soft key in the main m...

Page 54: ...Timer Touch Timeradjustment To set on off times Touch Running Time Running Time display appears Here the day time and desired operation is set Hinweis For day 1 5 or day 1 7 timer events may be copied to the day set Adjust settings with pads and Updated selection is inversely displayed Set day Day 1 Monday 2 Tuesday etc up to 7 Sunday 1 5 Monday to Friday weekdays 1 7 Entire week Monday to Sunday ...

Page 55: ...ction is again displayed Select the day that you want to copy Touch Insert Day Select the day to which you want to copy the time settings The day is now copied 9 4 Timer Overview To check programmed timer events touch Timer overview The week overview is graphically displayed Timer events are indicated by white bars 9 5 Timer Delete Touch the Delete Timer pad on page 2 of the timer main program men...

Page 56: ...to operate the machine again If the machine is switched off without cleaning after brewing and if more than 26 hours have elapsed since it was last cleaned when it is switched on again then the machine will remain blocked after warming up The cleaning program must be run before the machine can be operated again Caution There is a scalding and burning hazard in the area of the combination spout 7 I...

Page 57: ...ine or the milk foamer Foamer combination spout To clean the machine press the Machine soft key Important Do not remove the combination spout 7 while cleaning of the machine is taking place The SwitchingOff and No SwitchingOff soft keys appear in the display You can use these soft keys to choose whether the machine is to go back into operating mode after clean ing No SwitchingOff or whether you wa...

Page 58: ...achine and empty it Replace the grouts collector afterwards see also chapter 7 9 on page 102 After you have emptied the grouts collector and replaced it you will be asked to insert a cleaning tablet in the manual input Open the manual input 3 insert a cleaning tablet and close the manual input again Only WMF special cleaning tablets should be used to clean this machine WMF order no 33 0681 1000 3 ...

Page 59: ...rds until the clamp ing valve 13 is easily accessible To do this release the lock grasp the front door at both sides and slide the front door upwards using gentle pressure see also chapter 7 5 on page 95 Caution Beware of danger of crushing when adjusting the height of the combination spout 7 or the front door 14 Next detach the milk intake hose 16 from the combination spout 7 The milk intake hose...

Page 60: ...ing it from the combination spout 7 as described above Warning Beware of injury hazard when removing or fitting the milk intake hose to the clamping valve Next remove the combination spout 7 To do this press down at the same time on the two levers that project to the left and right behind the cap Remove the cap by pulling it upwards You can now remove the combination spout foamer from the mounting...

Page 61: ...no 33 0683 6000 from the measuring bottle in a container with 0 5 l hand hot water and mix the solution The parts must be completely covered by the cleaning solution After this time the parts are sterile Please take care not to introduce any new germs during the steps that follow Re assemble the combination spout 7 in the reverse order and fit it to the machine Do this by pressing down at the same...

Page 62: ...u can choose whether you want to clean the machine Machine or the foamer Foamer combina tion spout To clean the combination spout press the Foamer soft key Press the Clear Rinsing soft key After making your selection you will be asked again to confirm whether you wish to clean the foamer Press the soft key to confirm your selection or press to quit the selection without carrying out cleaning You w...

Page 63: ...ke hose 16 should be replaced at regular intervals The machine is ready for operation and the following dis play is shown By pressing the soft key you will enter a second level with a selection menu which allows you to carry out clean ing of the combination spout If you have allocated access authorisations PIN numbers see chapter 8 5 on page 124 on pressing the soft key you will be asked for your ...

Page 64: ...g beverage press the soft key to confirm You will now be asked whether you have prepared for rins ing the machine with water Have a container of clean wa ter ready and dip the nozzle of the milk intake hose into the container so that the water can be drawn in through the foamer Then press to acknowledge the prompt Caution Hot water flows out of the combination spout 7 There is a scalding and burni...

Page 65: ...frother rinsing press the Foamer Rinse soft key You can now set up the rinsing interval time in minutes by means of the FoamerRinseInt option in the display The milk frother will then be rinsed with cold water hot water and steam at the chosen interval in this example 10 min utes after the last milk beverage is dispensed each time Note Ensure that no jugs or other containers are beneath the coffee...

Page 66: ...soft key to un lock the manual input 3 You can now open the manual input 3 and clean the inside of the bowl with a damp cloth A message appears in the display asking you to add ground coffee Ignore this message On completion of cleaning close the manual input 3 again Once the manual input 3 is closed the machine is ready for operation again 3 ...

Page 67: ...Key in your PIN number When the correct PIN number is keyed in the Selection menu will open To alter your machine settings press the soft key in the Selection menu In the menu that appears next you are asked to choose whether you wish to alter the beverage settings machine settings reset timer program date time or the contrast Choose the Machine soft key This menu allows you to choose to set up th...

Page 68: ...tes cleaning must be carried out otherwise the machine is disabled Note Leftover milk from the previous day should never be used for frothing 10 3 General cleaning When the machine has cooled down clean the panels and drip tray with a damp cloth and then drub dry with a fine wool or chamois cloth Avoid abrasive cleaning powders as these can cause scratches We recommend WMF Purargan forte for care ...

Page 69: ...uilt in diagnostic pro gram Any errors occurring will appear in the display 4 However the following error messages may also be due to a power failure The symbol indicates that an error has occurred or that the operator s attention is required The following error messages can appear at present ...

Page 70: ... appears on machines with a built in pho toelectric barrier Hopper 03 empty top up ground coffee hopper 03 this message only appears on machines with a built in photo electric barrier After taking action to correct the error indicated press the corresponding message in the display and press OK to con firm that the problem has been corrected Call WMF Customer Service in the case of any error mes sa...

Page 71: ...eriod of limitation shall be at WMF s reasonable discretion repaired or rendered again if the cause of the defect as to quality had already been present when the risk was passed Claims for defects as to quality are subject to a limitation period of 12 months This period shall start with the day when the risk is passed The above period shall not apply in case there are longer periods required by th...

Page 72: ...of the respective percolator type for defects resulting from the inappropriate or improper use from the failure to use WMF genuine spare parts or from the faulty installation by the buyer or a third party or from a faulty or negligent handling and for consequences from modifications or repair works that were made improperly and without our consent by the buyer or a third party Claims for damages b...

Page 73: ...ures your system is as sterile as possible at the start of operation Start up each time with a fresh pack of cooled long life milk Long life milk in its original packaging is free from harmful germs as a rule Never start work ing with a milk pack which has already been opened When opening the fresh milk pack it is important to ensure absolute cleanliness Otherwise dirty hands or scissors or knives...

Page 74: ...cleaning fluid for 5 hours 6 Intermediate cleaning or replace the milk frother after every 4 hours operation essential with low throughput and when using uncooled milk 7 General cleaning of the machine i e cleaning the panels drip tray manual input etc Month Year Date Cleaning steps General cleaning Signature Date Cleaning steps General cleaning Signature 1 2 3 4 1 2 3 4 Time Time 1 17 2 18 3 19 4...

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