Daewoo DWM-7510 User manual

Service Manual

Washing Machine

Model: DWM-7510

DAEWOO ELECTRONICS CO., LTD.

✔

Caution

: In this Manual, some parts can be changed for improving, their

performance without notice in the parts list. So, if you need the

latest parts information,please refer to PPL(Parts Price List) in

Service Information Center (http://svc.dwe.co.kr).

TABLE OF CONTENTS

1. SPECIFICATIONS ................................................................................................................................. 1

2. EXTERNAL VIEW ................................................................................................................................. 2

3. PRINCIPLES OF OPERATION AND EXPLANATION OF FUNCTIONS ............................................. 3

4. DIRECTION FOR DISASSEMBLY AND ASSEMBLY ......................................................................... 7

5. TROUBLESHOOTING GUIDE ............................................................................................................. 10

6. EXPLODED VIEW AND PARTS LIST .................................................................................................. 15

7. WIRING DIAGRAM................................................................................................................................ 23

1. SPECIFICATIONS

NOTE : Explanation table for suffix of names.

NO ITEM SPECIFICATIONS

1POWER

SOURCE VOLTAGE

AC 110V AC 1 20V AC 220V AC 127/220V AC 110/220V AC 220V AC 240V

FREQUENCY 60Hz 50Hz

2POWER

CONSUMPTION

PUMP

640W 610W

NON PUMP

580W 550W

3 DIMENSION NET : 874 X 532 X 989, PACKED UP :898X 558 X 1015 (WXDXH)

4 MACHINE

WEIGHT PUMP NET : 40kg, PACKED UP : 44kg

NON PUMP NET : 38kg, PACKED UP : 42kg

5 WASHING COURSE STRONG, NORMAL

6WATERLEVEL HIGH : 72



,MEDIUM :61



, LOW : 52



7 REVOLUTION

PER MINUTE WASH 100 rpm 100 rpm

SPIN 1700 rpm 1400 rpm

8 TIMER WASH MAX. 15 min., Manual operation

SPIN MAX. 5 min., Manual operation

9 WASHER TYPE PULSATOR TYPE

10 SPIN TYPE CENTRIFUGALLY SEPARATED TYPE

11 MAXIMUM MASS

OF TEXTILE WASH 7.5kg

SPIN 7.0kg

12 WATER SUPPLY MANUAL

13 SPIN RINSE O

14 OUTLET OF DRAIN HOSE REAR

LINT FILTER

POWER SOURCE SUFFIX EXPLANATION

NON PUMP PUMP

AC 100V 50/60Hz J -

ModelName Pump

DWM - XXXX N P

Power Source

AC 110V 60Hz T TP

AC 120V 60Hz A AP

AC 220V 50Hz N NP

AC 220V 60Hz L LP

AC 240V 50Hz M MP

AC 110/220V 50Hz D DP

AC 127/220V 60Hz S -

2. EXTERNAL VIEW

2-1. STRUCTURE OF THE WASH MACHINE

2-2. CONTROL PANEL(PANEL B ASS'Y)

WASH TIMER

Use to select the desired time for washing or rinsing.

WASH ACTION

Use to select wash action. (“STRONG”, “NORMAL”)

VALVE SELECTOR

Select“WASH.RINSE” for washing and rinsing, and “DRAIN” to drain the water.

(In case PUMP MODEL turn on the drain pump.)

“OFF” to turn off the drain pump. (Only PUMP MODEL)

LEVER WATER SUPPLY SELECTOR

Left : water supply in the WASH TUB

Right: : water supply in the BASKET SPIN.

INLET WATER

Connect inlet hose to supply waterin the WASH TUB or BASKET SPIN.

SPIN TIMER

Use to select the desired time for spinning.

DOOR WASH PULSATOR



CABINET

PLATE T

BASKET SPIN

DRAIN HOSE

DOOR SPIN

COVER SAFETY

GUIDE FILTER

FILTER AS

DRAIN STRAINER

PANEL B

WASH TIMER VALVE SELECTOR INLET WATER

WASH ACTION SPIN TIMER

LEVER WATER

SUPPLY SELECTOR

3. PRINCIPLES OF OPERATION AND EXPLANATION OF FUNCTIONS

WASH TIMER

FUNCTION

The main switch remains ON during the washing time set by turning the timer knob.

Atthe same time, the internal switch T1 and T2 which provide powerto WASH MOTOR alternately atassigned Intervals.

Select switch knob sets the wash type by means of controlling the interval of internal switch contact.

STRUCTURE AND PRINCIPLE OF ACTIVATION

CIRCUIT DIAGRAM

SPIN TIMER

FUNCTION

The spin timeris the switch providing power to the SPIN MOTOR(DRAIN PUMP MOTOR)during the setspin

dry time,and is a spring-type time switch comes on upon turning and those contactpoints comes off afterthe

set time.

STRUCTURE AND PRINCIPLE OF ACTIVATION

1)The main shaft turns due to the unwinding force when the spin timer is turned,the spring wound with that

force being delivered through each gear and the spring slowly unwinding at a speed finally

controlled by the angle assembly.

2) The contact point turns ON and the assembly angle is set in motion, which is in the CAM groove in the

OFF state, comes off the groove when the main shaft is turned to wind the spring. The contact point

turns OFF, return to CAM groove when the spring unwind completely.

SAFETY DEVICE FOR BASKET SPIN

The BASKET SPIN is an apparatus which eliminates the waterfrom the laundry through centrifugalseparation

generated by rapid revolution(approximately 1,600rpm for 60Hz). Accordingly, there are a DOOR SWITCH

to cutoff the power going into the DOOR SPIN is opened and a brake system to stop the rotating BASKET SPIN.

DOOR SWITCH

When the DOOR SPIN is opened during spinning,

the DOOR SWITCH LEVER which sites atop the DOOR

SPIN falls off the contact, and cuts off the power going

into the SPIN MOTOR.

BRAKE SYSTEM

When the DOOR SPIN is opened, LINK WIRE

which connect to DOOR SPIN loosens. And then

the BRAKE BAND touches the DRUM COUPLING

assembly and stops the SPIN DRYER as it is pulled

by the SPRING in the BRAKE FIX PLATE assembly.

BRAKE BAND GAP CONTROL METHOD

The BAND BRAKE works best when the gap between

it and the DRUM COUPLING is about 2mm when the

DOOR SPIN is closed.The SPIN DRYER stops slowly if

the gap between the two is too narrow, the SPIN DRYER

revolution is affected and the PLATE CONTROL WIRE may

be adjusted to maintain the BRAKE BAND gap adequately.

WASH DECELERATOR ASSEMBLY

The initialdeceleration following the activation of the WASH MOTOR takes place through the PULLEY

MOTOR and PULLEY PULSATOR, and the secondary deceleration is done by the gear in the GEAR

HOUSING which also increases their revolution strength. This revolution speed and strength is delivered to

the PULSATOR,which is then able to cause water current thatis strong yet soft so that wash loads are not

damaged.

MOTOR WASH

About 1,700rpm(60Hz)

1,400rpm (50Hz)

PLATE

CONTROL WIRE

BASKET SPIN

WASH MOTOR

PULLEY PULSATOR

About 330rpm (60Hz)

330rpm (50Hz)

PULSATOR

About 100rpm (60Hz)

100rpm (50Hz)

GEAR HOUSING ASS'Y

The GEAR HOUSING ASSEMBLY is a transmission device which turns the PULSATOR at 3.3 : 1 lowered

speed through the gear unit assembly which receives power at the GEAR SHAFT UNIT.

1) The two sides ofthe GEAR SHAFT UNIT

are supported by the OILLESS BEARING

in the GEAR HOUSING ASSEMBLY.

2) The GEAR UNIT ASSEMBLY is connected

to the GEAR SHAFT 1 and GEAR SHAFT

UNIT by the GEAR and GEAR UNIT respectively.

3) The two sides of GEAR SHAFT 1 are

supported by the OIL SEAL and OILLESS

BEARING in the GEAR HOUSING ASSEMBLY.

SPIN BELLOWS ASS'Y

The wrinkled rubber device on the bottom of the

BASKET SPIN is called SPIN BELLOWS ASSEMBLY.

It has a waterseal and a oilless metal inside

to prevent leakage and so thatthe BASKET SPIN

may work smoothly.

FILTER

Much lint may be obtained depending upon the kind of

clothes to be washed and same of the lint may also be

suck to the clothes.

To minimize this possibility, a lint filter is provided

on the upper part of the FILTER OVERFLOW to filter the

wash water.

Use of the lint filter during every wash is

recommend.

CLEANING THE LINT FILTER

1) Remove the FILTER AS from the FILTER OVERFLOW by pressing it downwards.

2) Turn the FILTER AS inside out, and wash the lint off with water.

3) Return the FILTER AS it was, and fix the FILTER AS to the FILTER OVERFLOW.

STRUCTURE

4. DIRECTION FOR DISASSEMBLYAND ASSEMBLY

ASSY PANEL BACK

1. Remove 5 screws on the PANEL B. 2.Remove KNOB and 2 screws on the PANEL B.

(Spin Timer)

3. Remove CONTROL LEVER and WASH

TIMER.

BASKET SPIN

4. Remove 5 screws on the COVER BACK. 5. Remove LINK BRAKE and ASSEMBLY

BRAKE WIRE.

6. Remove 1 bolt and nuton the upper side ofthe 7. Remove 2 screws on the PLATE T.

DRUM COUPLING AS.

8. Liftup the BASKET SPIN.

ASSY BASE UNDER

9. Remove 1 screw on the CABINET.

10. Separate HARNESS AS connectors. 11. Remove a V-BELT from PULLEY MOTOR.

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