Service Manual C240 - C260 C240R - C260R - C290R 487 03 29 91/EN 08.
Service manual Overview Machine presentation 1 Technical data 2 Description of principal components 3 Service Instruction Periodic maintenance 11 Function sequences 12 Machine units and components Automatic unit 21 22 23 24 25 26 27 28 Lid and lid lock 29 Motors 30 31 Included units and somponents 32 33 34 35 36 37 38 39 40 41 Drum 487 03 29 91 1
Service manual Machine presentation 1 General The extractors described in this manual, with drum volumes 38, 58 and 88 litres, are an invaluable complement to the washing machine and other drying equipment. Through their efficient extraction of the water from the load after a wash program, the drying time can be considerably reduced. Drying wash in a drying cabinet or tumble dryer is energy-intensive and an efficient extractor can save a great deal of energy every year.
1 Machine presentation Service manual Safety rules • The machine must not be operated be children. • Do not leave children alone or unsupervised in the vicinity of the extractor. • The machine must not be hosed down with water. • Installation and servicing are to be performed be authorised personnel only. • The machine´s lid lock must not be bypassed under any circumstances. • The extractor must not be connected to a central time-switch which cuts the power supply to it at a certain time each day.
Service manual 2 2.
Service manual 3. Description of principal components 3 The machine are available in two types: • Flexibly-mounted, which means that the drum unit (motor and drum) are suspended in the frame by rubber straps. Beneath the motor is a counterweight which counterbalances the drum when it is rotation. • R- model, in which the drum unit is relatively mounted in the frame on rubber bushings. An out of balance switch stops the motor if the load is not distributed properly in the drum.
Service manual 11. Periodic maintenance 11 The following maintenance routines should be adhered to, to ensure satisfactory and safe operation, and to prevent service stops. The service intervals set out here are suitable for machines in normal use, for example in a communal laundry in an apartment building. The intervals should be halved if the machines is used intensively, e.g. in a commercial laundry.
Service manual 12. Functions sequences 12 Functonal diagram for hydro-ectrator 487 03 29 91 12.
12 12. Functions sequences Service manual General To facilitate fault-tracing in the electrical system, the description which follows has been divided into function sequences. At the end of this section there is also a table listing a number of measurement points.
Service manual 12 12. Functions sequences Power supply (380 V 60 Hz) Machine power supply can be 380 V 3 AC. An auxiliary tranformer is supplied with two of the line voltage phases and steps down the mains voltage to 24 V control voltage. The auxiliay tranformer is protected by two fuses, one on the primary side (F1) and one on the secondary side (F2). 2 The auxiliary transformer supplies the circuit board for automatic functions and the other components in the control circuit with control voltage.
12 12. Functions sequences Service manual Circuit diagram 489 50 01 77 has been used in describing the function sequence in this section: This diagram is in principle identical to all the other circuit diagrams since the control voltage is 24 V AC 50/60 Hz. Start of extraction 3 The machine starts extraction when the operator presses the START button on the control panel. Drive motor M1 is energised via connection X3-X5 (star connection) or X2-X7(delta connection) when relay K1 operates.
Service manual 12 12. Functions sequences 3 R1-R2 R1 R2 S3:out 1 S6:out 2 S1:2 S1:4 S1 K2 K1 M1 F3 487 03 29 91 12.
12 12. Functions sequences Service manual Lid Opening 4 The lid is opened by pressing the button on the control panel. The following conditions must be fulfilled before the lid will open: • The machine power supply must be on • The drum must be completely at a standstill i.e. rotation guards H1 (S4:2) and SW2 (S1:7) must have sent the opening signal. The lid lock is released with the aid of the traction magnet Y1.
Service manual 12 12. Functions sequences 4 R1 S1:6 R2 S1:7 S4:2 Y1 H1 SW2 487 03 29 91 12.
12 12. Functions sequences Service manual Stop after extraction The machine will stop extracting in the following three cases: • When the preset extractor time has elapsed (approx. 5 minutes). • When the operator presses in the STOP button on the control panel. • When the out of balance switch is activated. 5 The machine´s braking function on the circuit board (output S1:5) is activated after the control circuit to extraction relay K1 (S1:4) has been broken.
Service manual 12 12. Functions sequences 5 R1 R2 S1:4 S1:5 S1:7 S4:2 K2 K1 H1 M1 SW2 487 03 29 91 12.
12 12. Functions sequences Service manual Imbalance during extraction 6 In the event of imbalance, extraction is halted so that the load can be manually redistributed. The sensor arm of the microswitch (SW3) is activated if there is load imbalance, and it in turn sends a signal to the circuit board (S2:2) for activation of the braking function and subsequent possibility of lid opening function. 12.
Service manual 12 12. Functions sequences 6 R1 R2 S2:2 SW3 487 03 29 91 12.
12 Service manual 12. Functions sequences Faults and corrective action required Faults indecated by flashing yellow light Fault Possible cause Action 1. The extractor will not start. Yellow light flashing. Reed element ring in the deck is defective Disconnect main power supply to extractor. Check that the two connentions of the Reed ring to the circuit board for automatic functions are OK. If they are sound, replace the Reed ring. 2. The extractor has switched to braking during extraction.
Service manual 12 12. Functions sequences Fault Possible cause Action 6. Extraction interrupted and lid remains locked. After the full extraction time has elapsed and when the drum is at a standstill the yellow light starts flashing. The motor´s internal thermal protection Disconnect main power supply to has cut out the motor during extractor. Remove cover of control unit. extraction. open extractor lid manually by pressing the yoke of the traction magnet upwards.
12 Service manual 12. Functions sequences Measurement points A number of measurement points are shown in the adjacent diagram. The table below shows what each measurement is for, where to measure and the value which you should obtain. The measurements described below should be made with extractor in inactive state, i.e. with the drum not rotating. Special care must be taken at the measurement points for the edge connections to the curcuit bourd for automatic functions.
Service manual 12 12. Functions sequences R1 F R2 E D C B A 487 03 29 91 12.
Service manual 21 21. Automatic unit Component units 1 (230V 50 Hz; 400- 415V 50 Hz and 440V 60 Hz) K1 Relay, extraction K2 Relay, brake T1 Auxiliary transformer - supplies power to the electronics unit, and provides control voltage 24 V AC to components. The transformer is switchable for mains voltages: 230 V, 400 V, 415 V and 440 V. F1 Precision fuse M 0.2 A/500 V - protects primary side of auxiliary transformer. F2 Precision fuse T 2.5 A/500 V - protects secondary side of auxiliary.
21 Service manual 21. Automatic unit Component units (380 V, 60 Hz) 1 K1 Relay, extraction K2 Relay, brake T1 Auxiliary transformer - supplies power to the electronics unit, and provides control voltage 24 V AC to components. The transformer is connected for the mains voltage 380 V. F1 Precision fuse M 0.2 A/500 V - protects primary side of auxiliary transformer. F2 Precision fuse T 2.5 A/500 V - protects secondary side of auxiliary. SW1 Microswitch - detects position of lid lock.
Service manual 29 29. Lid and lid lock Lid lock 1 The lid is mounted on an arm and closes onto the deck of the outer casing. 1 CP Arm The extractor is closed by first moving the lid over the drum and then pressing the arm downwards. The arm activates a mechanical lid lock which prevents the lid from being opened during extraction. Traction magnet To prevent the machine from being able to start with the lid open there is a microswitch which detects when the lid lock is engaged.
29 29. Lid and lid lock Service manual Reed element C240, C240R, C260 and C260R General The function of the Reed element is to check that the lid is properly closed before extraction can start. A complete Reed ring consists of two Reed elements, set the ring itself, beneath the deck. The cable from the Reed ring is routed out through the edge of the deck via the control box down to the automatic control unit.
Service manual 30. Motors 30 Description (230V 50 Hz; 400-415V 50 Hz and 440V 60 Hz) The motor is mounted under the drum and drives the drum directly on its output shaft. To reduce motor noise and vibration the entire drum unit has rubber dampers. On flexiblymounted models this damping is provided by either eight or ten rubber straps, while the drum models this of R- models is mounted on two relatively rigid rubber bushings. 1 Electrical connection is to block X1 in the control unit.
30 30. Motors Service manual Description (380 V, 60 Hz) The motor is mounted under the drum and drives the drum directly on its output shaft. To reduce motor noise and vibration the entire drum unit has rubber dampers. On flexiblymounted models this damping is provided by either eight or ten rubber straps, while the drum unit of R-models is mounted on two relative rigid rubber bushings. 2 Electrical connection is to block X1 in the automatic control unit.
Service manual 30. Motors 30 Fault-tracing Motor does not run at all. • Check the power supply to the motor. Check the motor´s quick connector. • Check the motor windings with an ohmmeter for short-circuit or failure. • Check that the motor shaft can be turned. If it can´t, the probable cause is bearing failure. Replace the motor. • If, right after stopping, the motor feels abnormally hot, its thermal protection has probable tripped. Investigate the cause of the overloading.
Service manual 42 42. Drum Description 1 These are two methods of mounting the drum unit in the frame: one for the flexibly-mounted type, the other for R-model. • In the flexibly-mounted models (C240 and C260) the drum unit is suspended from rubber straps: 8 or 10 according to type. In these models the mounting cannot be adjusted, instead the rubber replacement is needed, then all the straps must be replaced where necessary.
42 Service manual 42. Drum R-models (C240R, C260R and C290R) 5 Checking and adjusting the rigidty of the drum mounting. The rigidity of the drum mounting is adjusted by means of the nuts above the bushing: three nuts or four according to model. 20-30 mm Check: • That the drum is not too loosely restrained. 5 6 Press hard on the drum edge. It should not be possible to press the drum in more than 20-30 mm. If the mounting is too loose, tighten the three or four nuts above the bushing.
Service manual • Remove the bolts around base of outer casing. Lift outer casing and control unit straight upwards. 9 42 42. Drum 9 • Remove the three or four nuts securing the bushing. Lift the motor straight upwards. • Replace the two rubber bushings. When you replace the upper bushing, do not remove the supporting journal from the motor. It can be difficult to adjust when it is put back. 10 Instead, remove the old bushing by cutting it off.
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