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SOI/DT 2006-01 dmm

 51/71 

599 37 47-13  

5.13 Drain 

pump 

5.13.1 General characteristics 

The function of the drain pump is to discharge the water at the end of 
each phase of the washing cycle. These centrifugal pumps are 
actioned by a synchronous motor. 
 
 
 
 
 
 
 
 
 

1. Impeller

 

 

2. Rotor 
3. Stator 
 

 
 
 
 
 
 
 
 
 
The rotor consists of a permanent magnet, and may rotate in either direction. 
The rotor may rotate for approximately 15 minutes without actioning the impeller. As a result, if the impeller 
is jammed by a foreign body, the rotor may perform short clockwise and anti-clockwise movements until the 
blockage is removed. 
These pumps have a delivery of about 22-25 litres per minute, and a maximum head of 90 cm. 
 

5.13.2 Electrical symbol 

 
 
 
 
 
 
 
 

5.13.3  Checking for efficiency 

 
1.  Check that the impeller is not jammed and check for slippage. 
2.  Check the resistance of the stator winding, which should be approximately 150/200 

 

Important! 
 
If caused to run empty (i.e. disconnected from the hydraulic circuit), synchronous pumps may fail to start up. 
This is because, due to their structural characteristics, they require a counter-torque on the impeller to allow 
the rotor to turn in one direction or the other. 
For this reason, the pumps should be tested only when fitted to the appliance and after introducing a certain 
quantity of water. 

Summary of Contents for LAUNDRY

Page 1: ...A Spares Operations Italy Corso Lino Zanussi 30 Publication number I 33080 PORCIA PN ITALY 599 37 47 13 Fax 39 0434 394096 Edition 2006 01 12 EN Washing machines HEC Structural characteristics electrical components and accessibility Production ZP Porcia Italy ...

Page 2: ...SOI DT 2006 01 dmm 2 71 599 37 47 13 ...

Page 3: ...ine programmes 18 4 FRONT LOADING WASHING MACHINE HEC 19 4 1 Washing system 19 4 1 1 ECO BALL ball valve 20 4 1 2 Ball valve operating principle 20 4 1 3 JETSYSTEM washing system 21 4 1 3 1 JETSYSTEM Hydraulic circuit 21 4 2 Cabinet 22 4 3 Door 22 4 3 1 Handle assembly 22 4 4 Control panel 23 4 4 1 Examples of control panels 23 4 5 Washing groups 24 4 5 1 Types of washing groups 24 4 5 2 Washing g...

Page 4: ...5 7 3 Electrical symbol 42 5 7 4 Circuit diagrams and operating frequency 42 5 7 5 Checking for efficiency 42 5 8 Commutator motor 43 5 8 1 General characteristics 43 5 8 2 Operating principle 43 5 8 2 1 Control of the speed of the motor 44 5 8 2 2 Direction of motor rotation 44 5 8 2 3 Tachymetric generator 45 5 8 3 Electrical symbols 45 5 8 4 Circuit diagram 46 5 8 5 Checking for efficiency 46 5...

Page 5: ...or 61 6 2 2 Door hinge 61 6 2 3 Door safety interlock 61 6 2 4 Bellows seal 62 6 2 5 Front side 62 6 2 6 Drain filter pump body 63 6 3 Access from the rear panel 64 6 3 1 Drive belt 64 6 3 2 Pulley 64 6 3 3 Motor 65 6 3 4 Heating element 65 6 3 5 Circulation pump if featured 65 6 3 6 Water control if featured 65 6 4 Access from the bottom of the appliance 66 6 4 1 Damper 66 6 4 2 Filter body tub h...

Page 6: ...cs 2 IMPORTANT NOTES Repairs to electrical appliances must be effected only by qualified personnel Before accessing the components inside the appliance always remove the plug from the power socket Where possible ohmic measurements should be effected rather than direct measurement of voltage and current Certain metal components inside the appliance may have sharp edges Care should be taken to avoid...

Page 7: ...from the fabrics the dirt must not re deposit but must be held in suspension 4 Elimination of the dirt by means of draining and rinses 3 1 1 Results of the wash In order to obtain satisfactory washing results it is necessary to know the nature of the fibres the nature of the soiling the hardness of the water the products used for the wash detergent conditioners bleach etc and then to select the ap...

Page 8: ... Greater quantity of water Maximum temperature 40 C Minimum mechanical agitation short times Cellulose vegetable fibres Alkaline Base detergents Bleach if used Sodium hypochlorite NaClo High water temperature if OK for coloureds for linen if heavily soiled bleaching is preferable to washing at high temperatures Normal quantity of water Vigorous and prolonged mechanical action Spinning Artificial c...

Page 9: ...sh at 60 C Wash at 40 C Wash at 30 C Delicate hand wash DO NOT WASH BLEACH May be bleached in COLD water DO NOT BLEACH IRONING Hot iron max 200 C Medium iron max 150 C Cool iron max 110 C DO NOT IRON DRY CLEANING These symbols are used by the dry cleaner to identify the correct solvent and cleaning process for each garment to be dry cleaned DO NOT DRY CLEAN DRYING Can be dried in a tumble dryer DO...

Page 10: ...n The mechanical action of the appliance is produced by the combination of clockwise anti clockwise rotation of the drum which agitates the wash load in the washing solution This action tends to transfer the dirt from the fabrics to the washing solution water chemical products The mechanical action may be VIGOROUS or DELICATE Vigorous drum movement in alternating directions clockwise and anti cloc...

Page 11: ... the tap supplying the appliance ferrous residue will be deposited after only a few days This is one of the major obstacles to achieving a satisfactory washing result 3 6 2 Hardness of the water According to current conventions the hardness of the water refers to the concentration of calcium and magnesium ions In general a distinction is made between total hardness permanent hardness temporary har...

Page 12: ... fabrics Increase of scale formation on the heating elements Hard water may cause the formation of incrustation on mechanical parts due to the presence of carbonates sulphates and alkaline terrous metal silicates This may also lead to a considerable reduction in the efficiency of the appliance since the reaction is endothermic in other words the increase in temperature favours the formation of car...

Page 13: ...s facilitating the penetration of the washing solution into the fabrics to dissolve the dirt These agents disperse and emulsify the dirt and grease which are then held in suspension in the washing solution 3 SILICATES alkaline substances that improve the washing result protecting the fabrics or dishes and the appliance itself from corrosion Not aggressive to the skin 4 ANTI FOAM regulator the corr...

Page 14: ...o dissociate the proteins improve the results of the wash considerably In addition enzymes vertically break down scale incrustations deposited on the appliance thus helping to detach the alkalis present in the detergent 2 STABILIZING AGENTS These are chemical products designed to control the uniformity of the bleach by stabilizing the washing solution 3 CMC CMC is used to hold the dirt in suspensi...

Page 15: ...dition it considerably reduces the capacity of the fabrics for absorption The hardness of the water not only reduces the washing power of the detergent but also reduces the softness resistance and whiteness of the fabrics washed When hardening agents such as Ca calcium and Mg magnesium react with certain components of the detergent the fabrics may become encrusted calcium and detergent deposits af...

Page 16: ...pre treatment but always followed by a wash using detergent It may be used at all temperatures and during the wash together with detergent or poured directly onto the fabrics 3 7 6 Bleaching Bleaching is generally performed after the wash by hand or in a machine except in the case of wine tea or coffee stains etc Light sensitive stains tomato etc if appearing on the fabrics after the wash may disa...

Page 17: ...RECT temperature in the various phases of the washing cycle reduces the cohesion of the dirt facilitates the suspension of the dirt in the water facilitates the reaction of the alkalis swelling the fabrics so that the dirt is dissolved more easily High temperatures do not facilitate the removal of all types of dirt in fact blood egg yolk milk etc are more easily removed if washed in cold water if ...

Page 18: ...ces the temperature of the drain water in synthetic cycles as an anti crease cycle 5 Drain 6 Brief spin cotton linen only 1st rinse 1 Water fill and if selected introduction of bleach for cotton linen only 2 Cold wash 3 Drain 4 Brief intermediate spin if selected cotton linen only 2nd 3rd rinse 1 Water fill 2 Cold wash 3 Drain 5 Brief intermediate spin if selected cotton linen only Final rinse sof...

Page 19: ...echanical and chemical actions The solenoid valve ducts water through the detergent dispenser where it collects the detergent and passes into the tub The correct water level is controlled by one or more pressure switches The fabrics loaded into the drum are maintained in constant movement by the rotation of the drum The particles of dirt after being separated from the fibres of the fabric by the c...

Page 20: ... not heated The detergent does not deposit on the filter body thus improving the quality of the wash reduction in mechanical detergent losses Better rinsing efficiency 4 1 2 Ball valve operating principle During the water fill and washing phases the sphere is raised by the water contained in the drain circuit to the uppermost position thus preventing water from passing between the tub and the filt...

Page 21: ...he drum The water is introduced by the solenoid valve its level is controlled by a pressure switch The water present in the bottom of the tub is circulated by a pump which ducts it to the fabrics through an aperture in the bellows seal The mechanical action is provided by the bi directional rotation of the drum at low speed the wash load is continuously rotated inside the drum by three drum lifter...

Page 22: ...pport and tub springs 5 Rear panel for narrow version 6 Rear panel for deep version 7 Transportation bracket for narrow version 8 Transportation bracket for deep version 9 Cabinet 4 3 Door The door available in different styling is of great dimensions to facilitate the loading operations of the clothes differently styled surrounds type of opening various handles 4 3 1 Handle assembly 1 Front surro...

Page 23: ...port by some screws The shape of the control panel depends on the styling and therefore the brand of the appliance Various types of control panels are available for each styling each fitted with a different number of buttons and knobs 4 4 1 Examples of control panels ALFA ONE JEWELS DELTA3 SIGMA CLUB DISPLAY SIGMA LCD ...

Page 24: ...washing group is provided by a front counterweight in cement and by a rear counterweight 4 5 1 Types of washing groups The washing machines may be fitted with washing groups of varying dimensions and spin speeds WASHING GROUPS Load capacity cotton Type Max Drum volume G19 5 Kg 42 l G20 6 Kg 46 l G22 7 Kg 54 l G23 8 Kg 63 l Spin speed Residual humidity Efficiency of spin 400 500 800 1000 1200 1400 ...

Page 25: ... secured to the front half shell by a metal elastic ring 1 Front half shell 2 O ring 3 Rear half shell 4 Drum 5 Front counterweight 6 Counterweight anchor screw 7 Bellows seal 8 Ring securing the seal to the tub 9 Ring securing the seal to the cabinet 10 Rear counterweight 11 Washing group suspension springs 12 Damper 13 Damper hinge pin 14 Half shell anchor screws 4 5 2 1 Support for bearings 1 R...

Page 26: ...ssure fitted to the internal face of the drum The drum spider in aluminium alloy is secured to the edge of the drum by screws A brass bushing is pressure fitted to the drum shaft 1 Drum casing 2 Flange 3 Drum lifter 4 Drum spider 5 Screws 6 Drum shaft 7 Drum shaft bushing Drum spider 4 5 2 3 Damper 1 Rubber vibration damper 2 Shaft 3 Shaft seals 4 Cylinder 5 Bush ...

Page 27: ...ased on the belt mounted on the pulleys which is calculated according to the following parameters D diameter of drum pulley de diameter of motor pulley I centre line distance between the pulleys For a given working length the belts which consist of different materials have a different degree of elasticity This means that when not fitted to the appliance their lengths may be different It is normal ...

Page 28: ...of 3 or 4 compartments 1 Fill hose 2 Water fill solenoid 3 Tube 4 Dispenser nozzle 5 Dispenser duct 6 Siphon for additives 7 Detergent drawer 8 Clamp 9 Detergent entry tube 10 Detergent dispenser Water duct with four compartments 2 or 3 way water inlet nozzle 3 or 4 compartment detergent drawer Water duct with four compartments and flow deviator 2 way water inlet nozzle 4 compartment detergent dra...

Page 29: ...the wash phase Water fill to conditioner compartment pre wash and wash solenoid valves In all models compartment d is used to contain the conditioner which is introduced at the beginning of the final rinse Water fill to pre wash and bleach compartment Pre wash solenoid valve In models with 4 compartment detergent dispensers water is ducted into compartments a and c though not at the same time If t...

Page 30: ...Dispenser duct 6 Siphon for additives 7 Detergent drawer 8 Detergent dispenser 9 Detergent entry tube 10 Clamp Version drawer with 3 4 compartments Version drawer with 4 compartments Water duct with four compartments 2 or 3 way water inlet nozzle 3 or 4 compartment detergent drawer Water duct with four compartments and fork 2 way water inlet nozzle 4 compartment detergent drawer ...

Page 31: ...mpartment pre wash and wash solenoid valves In all models compartment d is used to contain the conditioner which is introduced at the beginning of the final rinse The pre wash and wash solenoid valves are actioned simultaneously Water fill to pre wash and bleach compartment Pre wash solenoid valve In models with 4 compartment detergent dispensers water is ducted into compartment c by a special sol...

Page 32: ...ys 4 8 NEW JET circulation circuit 1 Tube between tub and filter body 2 Filter body 3 Drain filter 4 Washer 5 Filter knob 6 Drain pump 7 Circulation pump intake tube 8 Circulation pump 9 Circulation tube 10 Pressure chamber one or two ways 4 8 1 Drain filter This drain system is self cleaning the filter traps only objects of a certain size The drain tube is used to empty the drain circuit The pump...

Page 33: ...l symbols 5 1 3 Circuit diagrams 5 1 4 Checking for efficiency THE APPLIANCE GENERATES RADIOFREQUENCY DISTURBANCE check the efficiency of the earth circuit THE APPLIANCE IS INOPERATIVE Use an ohmmeter to check that the component is not faulty across 1 3 about 0 Ω across 2 4 about 0 Ω THE ELECTRICAL SAFETY CUT OUTS INTERVENE use an ohmmeter capacitance meter to check that the component is not short...

Page 34: ...rmally closed switch Normally open switch Deviator 5 2 3 Checking for efficiency DOES NOT POWER THE APPLIANCE OR DOES NOT PERFORM THE SPECIFIC FUNCTION Use a tester to check for correct closure or aperture of the various contacts Press the button and check for switching of the contacts IMPOSSIBLE TO ACTION THE BUTTON Check that the spindle is not broken and that there are no other mechanical probl...

Page 35: ...y also be fitted using a support 1 P T C 2 Bi metal strips 3 Contact in rest position 4 Contact closed The PTC is a ceramic resistor whose internal resistance increases with the temperature In this device the PTC is used to heat the bi metal strips The temperature deforms the two strips from A to B thus moving the lever which closes the contact of the main switch At the same time the latch which i...

Page 36: ...erating principle 1 Solenoid protective PTC 2 Solenoid valve 3 Lever mechanism 4 Camme 5 Bi metal PTC 6 Electrical contacts main switch 7 Locking latch When the appliance is switched on by pressing the ON OFF button the bi metal PTC is powered the camme is in a position that prevents the locking latch from moving outwards When the programme is started by pressing START PAUSE the main PCB sends a s...

Page 37: ... switched off using the ON OFF switch or if there is a fault in the solenoid valve the bi metal PTC cools within a period of between 55 seconds and about 4 minutes at a temperature of 65 C thus releasing the door 5 4 2 3 Protective cut out for solenoid valve A PTC connected in series to the solenoid valve serves as a current limiter i e overheating cut out in the following cases If the triac on th...

Page 38: ...d valve is controlled by a coil They have a nominal delivery of about 6 5 9 5 litres per minute The water pressure must be between 3 and 100 N cm2 5 5 2 Electrical symbol 5 5 3 Checking for efficiency WATER FILL CONTINUES WHEN THE APPLIANCE IS SWITCHED OFF Solenoid valve jammed mechanically Replace the solenoid valve WATER FILL CONTINUES DURING THE WASHING CYCLE Check the hydraulic circuit of the ...

Page 39: ...ure in this chamber increases When the pressure reaches a pre determined level the membrane causes the contact strip to trip rapid action which switches the contact from empty to full Two regulation screws are fitted to the cover one for the level the other for the differential i e the point at which the strip returns to the empty position when the level of water in the tub decreases 5 6 2 Pressur...

Page 40: ... on the diaphragm is reduced The diaphragm is pushed downwards by the counterspring until the switch resets i e returns to the empty position 5 6 4 Electrical symbol 1 Common contact 2 Contact closed on empty 4 Contact closed on full 5 6 5 Circuit diagram 11 21 31 Common contact 12 22 32 Empty contact 14 24 34 Full contact 5 6 6 Checking for efficiency Correct operation of the pressure switch depe...

Page 41: ...ng principle 1 Air intake tube 2 Membrane 3 Coil 4 Electronic circuit oscillator 5 Core 6 Spring 8 Connector The pressure switch is connected via tube to the pressure chamber When water is introduced into the tub this creates a pressure inside the hydraulic circuit that causes the membrane to change position This movement of the membrane modifies the position of the core inside the coil varying it...

Page 42: ...ms and operating frequency 5 7 5 Checking for efficiency In the event of a fault in the pressure switch the operation of the appliance is immediately interrupted Where possible always read the alarm code Possible alarm codes caused by faults in the pressure switch E31 E32 E33 E34 E35 ...

Page 43: ...r 5 Rotor winding 6 Motor drive shaft 7 Pulley 8 Bearing 9 Tachometric generator coil 10 Magnet 11 Spring 5 8 2 Operating principle The stator winding is connected in series to the rotor winding i e they are energized in series Each section of the rotor winding is connected to a pair of commutator plates also called commutators The electrical contact between the commutator and the fixed circuit is...

Page 44: ...en A1 and A2 anodes takes place in the presence of the appropriate signals received by the gate G 5 8 2 2 Direction of motor rotation The direction of rotation of the motor depends on the way in which the rotor and stator are connected together This connection is performed by two of the timer contacts or by the relays on the PCB Clockwise rotation Counter clockwise rotation EC Electronic control s...

Page 45: ...tachometric generator consisting of a magnet fitted to the shaft and a coil generates a voltage that depends on the speed of the rotor which is transmitted to the electronic control system All electronic control systems feature a system of protection which may be more or less refined to prevent operation of the motor in the event of a fault in the tachometric generator EC Electronic control system...

Page 46: ...checked SOLE ACC motor Ω F H P ACC motor Ω CE SE T motor Ω 171 196 3 4 Tachometric generator winding 469 540 126 147 64 73 5 10 Stator winding full range 1 0 2 2 1 0 3 0 1 0 2 0 6 7 Overload cut out 0 0 0 8 9 Rotor winding 1 5 3 0 1 5 3 0 1 5 3 0 1 10 Stator winding half range if terminal 1 is present 0 5 1 0 0 5 1 5 0 5 1 0 excluding the resistance of the brushes Notes When checking the rotor win...

Page 47: ...es including also normally die cast aluminium a circuit called squirrel cage because it consists of a series of bars forming a cylinder between two rings When the stator generates a rotating magnetic field electrical currents are inducted into the cage These opposing to the generator field produce a twisting movement to the rotor The maximum rotation per minute of an asynchronous motor depends on ...

Page 48: ...gle phase power applied to connectors L N is rectified by a diode bridge D to generate 310 VDC at the poles of condenser C The combined opening and closing of switches I1 I6 this switching is performed by the microprocessor determines the voltage and frequency of the power applied to the motor Clockwise motor operation Counter clockwise operation Motor speed is controlled using the signal from a t...

Page 49: ... flange 4 Nut 5 Heating element terminals 6 NTC sensor 5 11 2 Electrical symbol 5 11 3 Checking for efficiency DOES NOT HEAT check that the heating element is not broken measure the resistance across the two terminals INTERVENTION OF ELECTRICAL SAFETY CUT OUTS use an ohmmeter to check that the heating element is not connected to mass and check for current leakage 40 MΩ WATER LEAKS check that the s...

Page 50: ...e increases This reduction in resistance is detected by the electronic control system which when the desired temperature is reached disconnects the heating element 1 NTC resistor 2 Metal capsule 3 Terminals 4 Plastic casing RESISTANCE Ω TEMPERATURE ºC Rated value Maximum value Minimum value 20 60 80 6050 1250 640 6335 1278 620 5765 1222 660 5 12 2 Electrical symbol 5 12 3 Checking for efficiency U...

Page 51: ...ckwise movements until the blockage is removed These pumps have a delivery of about 22 25 litres per minute and a maximum head of 90 cm 5 13 2 Electrical symbol 5 13 3 Checking for efficiency 1 Check that the impeller is not jammed and check for slippage 2 Check the resistance of the stator winding which should be approximately 150 200 Ω Important If caused to run empty i e disconnected from the h...

Page 52: ...ccurs 1 Main board 2 1 Level pressure switch 3 Antiboiling pressure switch AE 4 Drain pump 5 Interference filter 6 Water Control In some appliances the base frame is designed to be a container that collects any water leaks that may occur from the tub from a tube or pipe etc These leaks are directed into an area where a float is installed When this float is raised by water it actuates a microswitch...

Page 53: ...ESULTS 1 Check that the impeller is not jammed and check for slippage 2 Check the resistance of the stator winding which should be approximately 150 200 Ω Important If caused to run empty i e disconnected from the hydraulic circuit synchronous pumps may fail to start up This is because due to their structural characteristics they require a counter torque on the impeller to allow the rotor to turn ...

Page 54: ...del produced is accompanied by a wiring diagram and a basic circuit diagram 5 16 1 Wiring diagram An example of a wiring diagram is shown below The wiring diagram may be used to check for correct connection of the wiring connectors to the various electrical components ...

Page 55: ...escription 999 132 24 63 01 7 wiring 999 132 24 80 01 1 earth wiring 999 124 90 12 31 9 power cable 2000x3x1 5 999 124 93 31 12 3 wiring FLAT CABLE 999 132 24 60 00 0 wiring 999 132 24 61 00 0 wiring 999 132 24 66 00 9 wiring 999 132 24 64 00 4 wiring 999 132 24 63 00 6 wiring 999 132 24 62 00 8 wiring 999 132 24 65 00 1 wiring In order to identify the correct spare part use the wiring diagram to ...

Page 56: ... 599 37 47 13 5 16 4 Basic circuit diagram An example of a basic circuit diagram is shown below The circuit diagram should be used to check the appliance for correct operation in the diagnostics phase Wire Internal connection ...

Page 57: ...tches ª Suppressor ª Cable grommet and power cable ª Solenoid ª Control panel ª Main board ª Display board ª Detergent dispenser 6 1 1 Electronic pressure switch c Remove the top d Turn the pressure switch of 90 as in figure and extract it e Detach the wiring connectors f Detach the pressure switch hose 6 1 2 Pressure switch g Remove the top h Turn the pressure switch of 90 as in figure and extrac...

Page 58: ...ble grommet with pliers and push it outward N B Every time the cable grommet is removed it is necessary to replace it with a new one 6 1 5 Solenoid valve f Remove the work top g Detach the water fill hose from the solenoid valve h Push the two catches inside the appliance i Simultaneously turn the solenoid valve j Detach the wiring connectors k Remove the hoses that connect the solenoid to the det...

Page 59: ...nscrew the fixing screw which fixes the board support to the side panel h Push the board following the arrow direction and extract it i Detach the wiring from the supports j Extract the casing PCB assembly k Detach the connectors 6 1 8 Control display board The way in which these boards are fastened depends on the styling version and the type of electronic control system user interface EWM 1000 EW...

Page 60: ...he tube s from the dispenser to the solenoid valve f Release the two lateral anchor tabs from the front crosspiece and at the same time push the detergent dispenser towards the rear g Lower the washing group and pull the dispenser out 6 1 10 Removing the duct from the dispenser h Remove the dispenser i Release the clamp and the anchor tabs for the duct from the lower part of the dispenser From ins...

Page 61: ...r panel d Remove the handle latch assembly Re assembly e Position the handle assembly in its housing in the flange so that the spring exerts pressure correctly f Refit the glass panel to the flange g Replace the surround and the screws 6 2 2 Door hinge h Remove the door i Remove the screws which secure the hinge to the front panel j Remove the hinge 6 2 3 Door safety interlock k Remove the seal fr...

Page 62: ...nage hole at the bottom and the internal reference notch at the top f Replace the metal retaining ring check that the ring is in good condition otherwise it should be replaced g Replace the circulation hose and the hose clamp h Fit the seal to the front panel and replace the clamp 6 2 5 Front side i Remove the work top j Remove the control panel k Detach the bellow seal from the front panel l Remo...

Page 63: ... body a Detach the hoses b Remove the screw which secures it to the crosspiece c Push it towards the interior of the appliance d Lift it up as indicated by the arrow and remove e While re assembling pay attention that the rubbers are positioned correctly d b c d ...

Page 64: ...From the rear panel it is possible to access to b Belt c Pulley d Heater e Motor f Circulation pump if featured g Water control if featured 6 3 1 Drive belt h Take the belt turn the pulley and remove it 6 3 2 Pulley i Remove the belt j Insert a catch to stop the pulley k Remove the screw which secures the pulley to the drum shaft b c d e f g h i j k ...

Page 65: ...h Push the nut on the heating element flange towards the interior of the tub i Remove the heating element j While inserting the new heating element pay attention to fit it correctly 6 3 5 Circulation pump if featured k Detach the connectors l Detach the hoses m Remove the screw which secures the pump to the lower crosspiece and extract it n Pay attention while reassembling the pump that the rubber...

Page 66: ...the clamps and detach the pressure switch tubes from the pressure chamber d Remove the fixing screw e Use pliers to widen the spring clip and detach the pressure chamber from the tub hose When re assembling Check that the pressure chamber is clean and secure the tubes and clips firmly in their original positions 6 4 3 Drain pump f Detach the connectors g Press down the anchor tab h Turn the pump c...

Page 67: ...ispenser to the control support and remove it h Lay the appliance face up paying attention to insert a sheet of polystyrene or cardboard to prevent scratching the cabinet i Detach the various hoses from the tub tub collector etc j Remove the two fixing pins of the dampers to the tub k Detach the tub suspension springs from the crosspiece l Remove the tub from the appliance 6 6 Drum and tub shells ...

Page 68: ...m b Remove the spider from the drum band When re assembling a Replace the spider on the drum ensuring that the fixing holes are correctly aligned b Insert the spider into the seat in the drum band and if necessary rotate it until the holes are correctly aligned c If the same screws are used clean and apply thread fixing paste d Tighten the screws securely 6 6 3 Front counterweight version with fro...

Page 69: ...drum anchor tabs as shown in the figure c Pull the drum lifter towards the door of the appliance and detach from the drum Re assembly a Check that the anchor tabs are parallel with the drum band b Insert the new lifter into the drum and push towards the rear of the appliance c Detach the hose connecting the tub to the filter body d Tighten the screw through the hole in the tub to secure the lifter...

Page 70: ...oss head Phillips screwdrivers 3 Set of socket screws 7 8 10 13 15 17mm 4 Insulated scissors 5 Allen keys 5 6 mm 6 A battery operated power screwdriver may also be used 7 Torx screwdriver T20 T30 T50 8 Adjustable wrench 9 Cutting nippers to tighten the clamps 10 Standard pliers 11 Narrow tipper pliers curved 12 Narrow tipped pliers straight 13 Cutter ...

Page 71: ...mer gr 300 15 Plastic or rubber head hammer 7 2 Materials Ö soap and water Ö silicone oil Ö vaseline Ö thread anchoring liquid for screws Ö grease for drum shaft seal part number 5026 24 16 00 6 Ö plastic wiring ties Ö metallic clamps hose fixing ...

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