Service Manual
Auto Washer
Model : DWF-170M/160M/900M
DAEWOO ELECTRONICS CO., LTD. OVERSEAS SERVICE DEPT.
SHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO |
WASH |
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TO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AU |
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SHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO |
WASH |
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TO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AU |
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SHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO |
WASH |
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TO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AU |
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SHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO WASHER |
AUTO |
WASH |
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WASHING MACHINE
Contents
1. SPECIFICATIONS................................................................................................................... |
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2. STRUCTURE OF THE WASHING MACHINE ....................................................................... |
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3. DIRECTIONS FOR INSTALLATION AND USE..................................................................... |
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INSTALLATION OF THE UNDER BASE COVER |
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HOW TO INSTALL ON AN INCLINED PLACE....................................................................... |
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HOW TO CONNECT THE INLET HOSE............................................................................... |
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HOW TO CLEAN THE FILTER |
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4. FEATURE AND TECHNICAL EXPLANATION...................................................................... |
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FEATURE OF THE WASHING MACHINE |
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WATER CURRENT TO ADJUST THE UNBALANCED LOAD................................................. |
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FUNCTION FOR SOAK WASH |
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AUTOMATIC WATER SUPPLY SYSTEM FOR BLANKET WASH ........................................... |
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FUNCTION PRINCIPLE OF BUBBLE WASHING MACHINE .................................................. |
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AUTOMATIC DRAINING TIME ADJUSTMENT ..................................................................... |
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AUTOMATIC UNBALANCE ADJUSTMENT |
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CIRCULATING-WATER COURSE AND LINT FILTER............................................................ |
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LINT FILTER |
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RESIDUAL TIME DISPLAY................................................................................................ |
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DRAIN MOTOR |
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GEAR MECHANISM ASS’Y |
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5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT ................................................. |
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GEAR MECHANISM ASS’Y REPLACEMENT |
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MOTOR SYNCRONOUS AND VALVE REPLACEMENT |
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6. THE REPAIR GUKDE OF GEAR MECHANISM FOR CLUTCH |
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SPRING PROBLEM.............................................................................................................. |
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THE STRUCTURE OF GEAR MECHANISM |
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HOW TO CHECK THE CLUTCH SPRING PROBLEM ......................................................... |
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THE PROCESS OF DISASSEMBLE .................................................................................. |
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THE PROCESS OF ASSEMBLE |
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REPLACE THE CASE FILTER ASSY |
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7. TROUBLE SHOOTING GUIDE ............................................................................................ |
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CONCERNING WATER SUPPLY ....................................................................................... |
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CONCERNING WASHING |
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CONCERNING DRAINING ................................................................................................ |
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CONCERNING SPINING |
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CONCERNING OPERATING |
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8. PRESENTATION OF THE P.C.B ASS’Y .............................................................................. |
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APPENDIX |
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WIRING DIAGRAM ........................................................................................................... |
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PARTS DIAGRAM............................................................................................................. |
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PARTS LIST |
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CIRCUIT DIAGRAM |
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1. SPECIFICATIONS
NO. |
ITEM |
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DWF-170M |
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DWF-160M |
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DWF-900M |
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1 |
POWER SOURCE |
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AVAILABLE IN ALL LOCAL AC VOLTAGE AND CYCLE |
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2 |
POWER CONSUMPTION |
50Hz |
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430W |
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50Hz |
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430W |
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50Hz |
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430W |
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60Hz |
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530W |
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60Hz |
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530W |
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60Hz |
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530W |
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NON-PUMP |
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42Kg |
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NON-PUMP |
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42Kg |
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NON-PUMP |
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41Kg |
3 |
MACHINE WEIGHT |
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PUMP |
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43Kg |
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PUMP |
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43Kg |
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PUMP |
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42Kg |
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4 |
DIMENSION (WXHXD) |
598 X 956 X 643 |
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598 X 956 X 643 |
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598 X 956 X 643 |
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5 |
WASHING COURSE |
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FULL AUTOMATIC 5 COURSE |
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(NORMAL, BLANKET, ECONOMY, SUIT, SOAK) |
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6 |
WATER CONSUMPTION |
207 L |
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201 L |
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193 L |
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HIGH |
88 L |
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HIGH |
86 L |
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HIGH |
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70 L |
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MEDIUM |
75 L |
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MEDIUM |
73 L |
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MEDIUM |
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60 L |
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WATER LEVEL SELECTOR |
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LOW |
61 L |
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LOW |
59 L |
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LOW |
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50 L |
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SMALL |
48 L |
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SMALL |
46 L |
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40 L |
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8 |
OPERATING WATER PRESSURE |
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0.3kgf/cm2~8kgf/cm2 (2.94 N/cm2~78.4N/cm2) |
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9 |
REVOLUTION |
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60Hz |
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WASH : 125 - 140 RPM, |
SPIN : 640 - 675 RPM |
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PER MINUTE |
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50Hz |
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WASH : 130 - 150 RPM, |
SPIN : 710 -140 RPM |
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10 |
PULSATOR |
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6 WINGS (Ø376mm) |
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WATER LEVEL CONTROL |
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ELECTRONICAL SENSOR |
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12 |
GEAR MECHANISM ASS’Y |
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HELICAL GEAR |
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13 |
LINT FILTER |
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14 |
SOFTENER INLET |
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FUNCTION FOR SOAK WASH |
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16 |
ALARM SIGNAL |
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RESIDUAL TIME DISPLAY |
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18 |
AUTO. WATER SUPPLY |
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19 |
FUNCTION FOR BUBBLE |
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20 |
AUTO RE-FEED WATER |
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21 |
AUTO POWER OFF |
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2 SPECIFICATIONS
2. STRUCTURE OF THE WASHING MACHINE
The parts and features of your washer are illustrated on this page.
Be come familiar with all parts and features before using your washer.
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NOTE
•The drawing in this book may vary from, your washer model. They are designed to show the different features of all models covered by this book, Your model may not include all features.
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• HOT WATER TAP
After using the washer, close the water tap. In case of the single valve model,
there is no hot water valve.
•SOFTENER INLET
•BLEACH INLET
• CONTROL PANEL
• POWER SWITCH
•PULSATOR
•ADJUSTABLE LEG
• COLD WATER TAP
After using the washer, close the water tap
• DETERGENT CASE
• LINT FILTER
• GROUND WIRE In case of 3-wire power cord, ground wire will not be
provided
• POWER CORD
ACCESSORIES
DRYTEN |
COVER UNDER [OPTION] |
WATER TAP ADAPTER |
INLET HOSE |
UP
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3611402711 |
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HOSE DRAIN [FOR PUMP] |
HOSE DRAIN CLAMP |
HOSE DRAIN[FOR NONPUMP] CONNECTOR INLET [OPTION] |
361321880 |
3613213500 |
STRUCTURE 3
3. DIRECTIONS FOR INSTALLATION AND USE
INSTALLING PLACE
Install the washer on a horizontal solid floor. If the washer is installed on an unsuitable floor, it could make considerable noise and vibration.
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Keep the machine body |
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more than 25cm apart from |
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the wall surface. It will |
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make easy cleaning the |
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drain filter which is equipped |
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at the back side of it. And if |
10Cm |
it comes into contract vibra- |
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tion may occur. |
Never install in these places
●The place where it would be exposed to direct sunlight.
●The place nearby a heater or heat appliance.
●The place where it would be supposed to be frozen in winter.
●The kitchen with coal gas and a damp place like a bathroom.
■ INSTALLATION OF THE UNDER BASE COVER [OPTION]
The packing box |
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Push the noise insulation plate |
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1opened, there is a |
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2into the end, which decrease |
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noise insulation plate |
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the noise made by this washer. |
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at the bottom of the back |
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■ HOW TO INSTALL ON AN INCLINED PLACE
Horizon |
Check the Horizon |
1Setting |
2Status |
After controlling the height |
Check the position of tub above |
by turning the adjustable |
the center of the washer. |
leg, let the washer put |
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down to the ground. |
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NOTES
The openings must not be obstructed by carpeting when the washing machine is installed on a carpeted floor.
4 DIRECTIONS
■ HOW TO CONNECT THE INLET HOSE
Be careful not to mistake in supplying between the hot(maximum : 50˚C) and cold water.
In using only one water tap or in case of attached one water inlet valve, connect the inlet hose to the cold water inlet valve.
Do not over tighten : this could cause damage to couplings.
FOR ORDINARY TAP |
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Pull down the collar |
Loosen the four |
1of the inlet hose to |
2screws at the water |
separate it from the |
tap adapter, but don’t |
water tap adapter. |
loosen the screws until |
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they are separated from |
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the water tap adapter. |
Remove the tape, |
Connect the inlet |
4and screw connector |
5hose to the water tap |
B into connect A tightly. |
adapter by puling down |
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the collar of the hose end. |
Connector A
Connector B
FOR SCREW-SHAPED TAP |
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Connect the connec- |
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1hose to the water tap |
2tor-inlet supplied if |
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nector D tightly. |
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Connector |
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Inlet |
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Rubber |
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Connector D |
Packing |
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Rubber |
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Connector D |
Packing |
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3Connect the water tap adapter to the water tap tighten the four screws evenly while pushing up the adapter so that the rubber packing can stick to the water tap tightly. 
TAPE
6Connect the inlet hose adapter of the hose to the water inlet of the washer by turning it clockwise to be fixed tightly.
•Please check the rubber packing inside the inlet hose adapter of the hose.
3Insert the inlet hose adapter into the water inlet of a washer and turn it to be fixed.
Inlet Hose |
Connector C |
Hose |
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Connector C |
• Assert the packing
in the inlet
CONNECTION 5
■ HOW TO CLEAN THE FILTER
CLEANING THE LINT FILTER |
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Pull the Filter frame |
Turn the lint filter |
1upward. |
2inside out, wash to |
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the lint off with water. |
Lint Filter |
Filter Frame |
3Return the filter as it was, and insert the filter frame into the slot.
CLEANING THE WATER INLET FILTER
• Clean the filter when water leaks from, the water inlet.
Pull the |
Turn off the |
Pull the |
Remove the dirt |
1power plug |
2water supply |
3inlet filter out. |
4from the inlet filter |
out before |
to the washer |
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with a brush. |
cleaning it. |
and sperate the |
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inlet hose. |
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CLEANING THE DRAIN FILTER
•In case “U” shape drain hose, this filter’s equipped at the back side of washer.
•This drain filter is to screen the foreign stuffs such as threads, coins, pins, buttons etc ...
•If the drain filter is not cleaned at proper time (every 10 times of use), Drain problem could be caused.
Put down the |
Turn the cap counter |
Pull out the filter assembly off |
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1remained water in the |
2clockwise. |
3the case of the main body. |
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hose. And put a container |
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SLIT |
under the filter to collect |
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FILTER |
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water. |
CAP |
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CASE |
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CAP |
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FILTER CONTAINER |
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4Clean the drain filter removing the foreign stuffs.
FILTER
CAP
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5guiding prominence of the |
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case. Please note the left |
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position of the filter adjusting |
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the groove to the guide rib. |
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CASE |
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FILTER |
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CAP |
GUIDE |
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RIB |
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CAP |
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SLIT |
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6 CONVENIENCE
4. FEATURE AND TECHNICAL EXPLANATION
FEATURE OF THE WASHING MACHINE
1The first air bubble washing system in the world.
2Quiet washing through the innovational low-noise design.
3The wash effectiveness is much more enhanced because of the air bubble washing system. 4The laundry detergent dissolves well in water because of the air bubble washing system. 5The adoption of the water currents to adjust the unbalanced load.
6One-touch operation system.
WATER CURRENT TO ADJUST THE UNBALANCED LOAD
It is a function to prevent eccentricity of the clothes after wash by rotating pulsator C.W and C.C.W for 35 seconds.(But, the SUIT course have no operation of the water currents to adjust the unbalnced load.)
EFFECT
It reduces vibration and noise effectively while spinning.
WATER FLOW
WASH |
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DRAIN |
SPIN |
FILL |
RINSE 1 |
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DRAIN |
SPIN |
FILL |
RINSE 2 |
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DRAIN |
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MOTOR C.W
SINGAL C.C.W
TIME(SEC.) |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
••••••• |
35 SEC. (About 29 Times)
FUNCTION FOR SOAK WASH
DISPLAY THE RESIDUAL TIME
When the SOAK WASH is selected, the total wash time increases because 60 minutes for soak process are added to the time of main process.
PROGRESS
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SOAK PROCESS |
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MAIN PROCESS |
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FILL |
WASH |
STOP |
WASH |
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30” |
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2’ |
30” |
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60 Minute
NOTES ‘ ’ mark indicates the operation of the water currents to adjust the unbalanced load.
AUTOMATIC WATER SUPPLY SYSTEM FOR BLANKET WASH 
The water level would be lowered because the blanket absorbs water at the beginning of washing. Therefore, after 2 minutes, the operation is interrupted to check the water level, and then the water is supplied again until the selected water level is reached.
FEATURE 7
FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE
ACROSS SECTION
Air bubble
Tub
Outer tub
Pulsator
FUNCTIONAL PRINCIPLE
Bubble Motor supplies the air from the bottom of outer tub to the inner space of pulsator, the air is dispersed by the rotation of pulsator. Air-bubble is created by the centrifugal force, and rises up.
AUTOMATIC DRAINNING TIME ADJUSTMENT
This system adjusts the draining time automatically according to the draining condition.
Draining |
Good draining |
The washer begins spin process after drainage. |
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Bad draining |
Draininig time is prolonged. |
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condition |
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No draining |
Program is stopped and gives the alarm. |
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FUNCTIONAL PRINCIPLE
1 The micom can remember the time from the begining of drain to reset point when the pressure switch reaches to “OFF” point
Drain Time |
Movement of the Program |
Less than
Continue draining
15 minutes
More than
Program stops and gives the alarm with 
blinked on display lamp.
15 minutes
2In case of continuous draining, residual drain time is determined by micom. Draining time as a whole = D + 90
Residual drain time.
The time remembered by micom.
8 FEATURE
AUTOMATIC UNBALANCE ADJUSTMENT
This system is to prevent abnormal vibration during intermittent spin and spin process.
FUNCTIONAL PRINCIPLE
1 When the lid is closed, the safety switch contact is “ON” position.
2 In case that wash loads get uneven during spin, the outer tub hits the safety switch due to the serious vibration, and the spin process is interrupted.
3In case that P.C.B. ASS’Y gets “OFF” signal from the safety switch, spin process are
stopped and rinse process is started automatically by P.C.B. ASS’Y.
4If the safety switch is operated due to the unbalance of the tub, the program is stopped and the alarm is given.
Contact of safety switch Lid closing
Lid opening
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Contact lever A |
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Position of |
Normal (ON) |
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unbalanced load (OFF) |
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NOTES
The alarm finished when you close the lid after opening it. Check the unbalance of the wash load and the installation condition.
CIRCULATING-WATER COURSE AND LINT FILTER
CIRCULATING-WATER
The washing and rinsing effects have been improved by adopting the water system in which water in the tub is circulated in a designed pattern.
When the pulsator rotates during the washing or rinsing process, the water below the pulsator fans creates a water currents as shown in figure.
The water is then discharged from the upper part of the tub through the water channel. About 40 L/min. water is circulated at the ‘high’ water level, standard wash load and standard water currents.
Filter |
Tub |
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Water |
Outer tub |
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channel |
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Pulsator |
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FEATURE 9
LINT FILTER
Much lint may be obtained according to the kind of clothes to be washed and some of the lint may also sticks to the clothes.
To minimize this possibility a lint filter is provided on the upper part of the tub to filter the wash water as it is discharged from the water channel. It is good to use the lint filter during washing.
HOW TO REPLACE LINT FILTER
Filterr
BleachInlet
Inlet
Pulsator
1Pull the filter frame upward.
2Turn the lint filter inside out, and wash the lint off with water 3Return the filter as it was, and fix the filter frame to the slot
RESIDUAL TIME DISPLAY
When the START/HOLD button is pressed, the residual time counted down according to process.
When operation is finished, the TIME INDICATOR will light
DRAIN MOTOR
STRUCTURE
Pull
Loosen 
Pulley
Lever
Inductive ring
Magnet
Coil of motor
Magnet of motor
FUNCTIONAL PRINCIPLE
1When the DRAIN MOTOR connected to the power revolves the pulley by gear assembly for reducing.
2When the pulley is rotated, the pulley winds the wire to 3Therefore, rotation of pulley changed to the linear moving 4The wire pulls the brake lever of Gear Mechanism Ass’y
5After the wire pulled, gear assembly is separated from lever.
6When the power is turned off, the drain valve is closed
10 FEATURE
GEAR MECHANISM ASS’Y
The proper water currents is made by the rotation of pulsator at a low speed to prevent the damage to the small sized clothes.
Planetary gear 
Sun gear
Internal gear
Pulsator
Gear unit as
Motor
1 revolution |
5 revolutions |
Gear pulley
V-belt
Motor |
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1800 r.p.m (60Hz) |
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1500 r.p.m (50Hz) |
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V.BELT |
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Gear Unit as |
Pulsator |
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Spinner Pulley |
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125-140r.p.m(60Hz) |
710-740r.p.m(60Hz) |
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130-150r.p.m(50Hz) |
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640-675r.p.m(50Hz) |
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Tub |
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Directly |
710-740r.p.m(60Hz) |
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640-675r.p.m(50Hz) |
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FEATURE 11
5. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT
Warning
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE WASHING MACHINE, DISCONNECT
THE POWER CORD FROM THE ELECTRIC OUTLET.
GEAR MECHANISM ASS’Y REPLACEMENT
GEAR MECHANISM ASSY REPLACEMENT
1Raise the top plate on the outer cabinet.
2Loosen four screws mounting outer tub cover and remove outer tub cover from the tub ass’y.
3Remove the cap pulsator from the pulsator assy by using screw driver
4Loosen the pulsator mounting screw and remove the pulsator.
5Remove the special nut by using “T” type box wrentch. 6Remove the special washer.
12 DIRECTIONS
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