Daewoo DWF-4220 Series User manual

DAEWOO ELECTRONICS CO., LTD.

DWF-4220 (Series)

DWF-5020 (Series)

Full-Auto Electric Washing Machine

Service Manual

612-1, AHYEON-DONG, MAPO-GU,

SEOUL, KOREA.

C.P.O. BOX 8003 SEOUL KOREA

TELEX: DWELEC K28177-8

CABLE:"DAEWOOELEC"

FAX: (02) 364-5588/5305

TEL: (02) 360/7315~7

DAEWOO ELECTRONICS CO., LTD.

S/M NO.: WF42200100 PRINTED DATE: APR. 1996

1

TABLE OF CONTENTS

1. SPECIFICATIONS.................................................................................................................................................................... 2

2. FEATURE AND TECHNICAL EXPLANATION

FEATURE OF THE WASHING MACHINE............................................................................................................................... 3

WATER CURRENTS TO ADJUST THE UNBALANCED LOAD ..............................................................................................3

PULSATOR SYSTEM................................................................................................................................................................4

AUTOMATIC DRAINING TIME ADJUSTMENT........................................................................................................................4

SOFTENER DISPENSER...........................................................................................................................................................5

AUTOMATIC UNBALANCE ADJUSTMENT ............................................................................................................................6

CIRCULATING-WATER COURSE AND LINT FILTER.............................................................................................................6

SYNCRONOUS MOTOR...........................................................................................................................................................7

YNCRONOUS GEAR MECHANISM ASS'Y.............................................................................................................................8

PRINCIPLE OF BUBBLE GENERATOR...................................................................................................................................8

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE .............................................................................................9

3. STRUCTURE OF THE WASHING MACHINE..................................................................................................................... 10

4. FUNCTIONS OF THE CONTROL PANEL........................................................................................................................... 11

5. DIRECTIONS FOR INSTALLATION AND USE

HOW TO INSTALL THE WASHING MACHINE......................................................................................................................12

HOW TO CONNECT THE INLET HOSE.................................................................................................................................14

HOW TO GROUND THE WIRE...............................................................................................................................................15

6. PROCEDURE OF FULL-AUTOMATIC WASHING............................................................................................................. 16

7. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

GEAR MECHANISM ASS'Y REPLACEMENT........................................................................................................................18

SYNCRONOUS MOTOR AND VALVE REPLACEMENT.......................................................................................................19

BRAKE ADJUSTMENT............................................................................................................................................................19

8. TROUBLE SHOOTING GUIDE

CONCERNING WATER SUPPLY...........................................................................................................................................20

CONCERNING WASHING......................................................................................................................................................21

CONCERNING DRAINING......................................................................................................................................................22

CONCERNING SPINNING......................................................................................................................................................23

CONCERNING OPERATION..................................................................................................................................................24

9. PRESENTATION OF THE P.C.B. ASS'Y

CONCERNING ERROR MESSAGE........................................................................................................................................25

CONFIGURATION OF FULL CIRCUITS.................................................................................................................................27

MINUTE EXPLANATION DIAGRAM FOR EACH PARTS......................................................................................................28

APPENDIX

WIRING DIAGRAM..................................................................................................................................................................40

PARTS LIST (THE WHOLE).....................................................................................................................................................42

PARTS DIAGRAM....................................................................................................................................................................46

P.C.B. PARTS LIST .................................................................................................................................................................49

CIRCUIT DIAGRAM.................................................................................................................................................................54

BARE PCB ..............................................................................................................................................................................56

2

1. SPECIFICATIONS

NO ITEM SPECIFICATIONS

1 POWER SOURCE

AC 220V/60Hz AC 127V/50,60Hz AC 110V/60Hz AC 220V/50Hz AC 240V/50Hz

2 POWER DWF-4220 370W 370W 370W 330W 330W

CONSUMPTION DWF-5020 430W 430W 430W 370W 370W

3

MACHINE

DWF-4220

NON PUMP: NET; 30.5kg, GROSS: 35 kg PUMP: NET; 31.5kg, GROSS; 36kg

WEIGHT DWF-5020

NON PUMP: NET; 31.5kg, GROSS: 36 kg PUMP: NET; 32.5kg, GROSS; 37kg

4 DIMENSION (WXHXD) 502X820X500

5 WASHING COURSE FULL AUTOMATIC 4 COURSES

(FUZZY, SPEED, HEAVY, WOOL)

6 WATER CONSUMPTION NORMAL 128|(131|: DWF-5020)

7 WATER LEVEL DWF-4220 HIGH (47|), MEDIUM (38|), LOW (30|), SMALL(22|)

SELECTOR DWF-5020 HIGH (48|), MEDIUM (39|), LOW (31|), SMALL(23|)

8

OPERATING WATER PRESSURE

0.3~8kgf/cm2(2.9~78.4N/cm2)

SPIN:690 (50Hz)

9 REVOLUTION PER MINUTE SPIN: 750 WASH:130 SPIN: 750 SPIN: 690

WASH: 140 SPIN: 750 (60Hz) WASH: 140 WASH: 130

WASH: 140

10 PULSATOR 5 WINGS (Ø 321mm)

11 WATER LEVEL CONTROL ELECTRONICAL SENSOR

12 OUTER CABINET SGCC

13 GEAR MECHANISM ASS'Y PLANETARY GEAR ASSEMBLY OF ENGINEERING PLASTIC

14 LINT FILTER O

15 SOFTENER INLET O

16 ALARM SIGNAL O

17 AUTO WATER SUPPLY O

18 NEW WATER FLOW WATER FLOW FOR ADJUST THE UNBALANCED LOAD

19 FUNCTION FOR BUBBLE OPTION

20 DWF-4220 4.2 kg

DWF-5020 5.0 kg

MAXIMUM

MASS OF

TEXTILE

3

FEATURE OF THE WASHING MACHINE

1) The first air bubble washing system in the world.

2) Quiet washing through the innovational low-noise design.

3) The wash effectiveness is much more enhanced because of the air bubble washing system.

4) The laundry detergent dissolves well in water because of the air bubble washing system.

5) The adoption of the water currents to adjust the unbalanced load.

6) One-touch operation system.

WATER CURRENTS TO ADJUST THE UNBALANCED LOAD

It is a function to prevent eccentricity of the clothes after washing by rotating pulsator C.W and C.C.W for 20 seconds.

WATER FLOW

NOTE: "I" mark indicates the operation of the water currents to adjust the unbalance load.

EFFECT

It reduces vibration and noise effectively during spinning.

2. FEATURE AND TECHNICAL EXPLANATION

WASH IDRAIN SPIN FILL RINSE 1 IDRAIN SPIN FILL RINSE 2 IDRAIN ...

MOTOR C.W

SIGNAL C.C.W

TIME (SEC.) 0.3 0.5 0.3 0.5 0.3 0.5

20 SEC. (About 13 Times)

4

PULSATOR SYSTEM

When the new shaped pulsator is rotated C.W or C.C.W at a high speed, it makes the 'heart-shaped' water currents as

shown below.

AUTOMATIC DRAINING TIME ADJUSTMENT

This system adjusts the draining time automatically according to the draining condition.

FUNCTIONAL PRINCIPLE

1. The micom can remember the time from the beginning of drain to reset point when the pressure switch reaches to

"OFF" point.

2. In case of continuous draining, residual drain time is determined by micom.

Draining time as a whole=D + 60

(T sec.)

WATER CURRENTS

A Water is pushed up near the tub

wall by rotation of the pulsator.

B Water is pulled down in the middle

of the tub by rotation of the

pulsator

C Water currents is generated by

rotation of the pulsator.

C

Rotate

A A

B

Good draining The washer begins spin process after drainage.

Draining Bad draining Draining time is prolonged.

condition No draining Program stops and gives the alarm.

Drain Time Movement of the Program

Less than 5 minutes Continue draining.

More than 5 minutes Program stops and gives the alarm with all lamps of the "COURSE" light up.

Residual drain time.

The time remembered by micom.

DRAINING

TIME

WATER

LEVEL

T4 T3 T2 T1

TRIP POINTS

RESET POINTS

*

LOW MED HIGH 0

60

160

220

280

(mm)

340

60

D1 D2 D3 D4

T1=D1+60 (Sec.) T2=D2+60 (Sec.) T3=D3+60 (Sec.) T4=D4+60 (Sec.)

SMALL

5

SOFTENER DISPENSER

This is the device to dispense the softener automatically by centrifugal force.

This is installed inside the Balancer Ass'y.

FUNCTIONAL PRINCIPLE

1. Softener stays in room (A) when poured into softener inlet.

2. Softener in moved from (A) to (B) by centrifugal force during intermittent spin process.

3. Softener flows from (B) to (C) during rinse process next to intermittent spin.

4. Softener in moved from (C) to (D) by centrifugal force during second intermittent spin.

After spin process is finished, the softener is added into the tub through softener outlet.

FLOW OF THE SOFTENER

FLOW OF THE SOFTENER INSIDE OF THE BALANCER

NOTE: Softener moves into the next room when r.p.m. of the tub is more than 100 r.p.m.

HOW TO CHECK MOVEMENT

Pour a reasonable amount of "MILK" into softener

dispenser and operate the washer with no load. In final

rinse cycle, make sure that the milk is added into the

tub through softener outlet.

Wash Intermittent Hold Intermittent Rinse Spin

Spin Spin

Normal Centrifugal Flow in Centrifugal Flow in

force force

Course (A) (B) (C) (D)

Room inside

the balancer

Centrifugal force

Flowing by

weight

ABCD

A

B

C

D

Balancer

Softener inlet

Softener

outlet

6

AUTOMATIC UNBALANCE ADJUSTMENT

This system is to prevent abnormal vibration during intermittent spin and spin process.

FUNCTIONAL PRINCIPLE

1. When the door 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.

3. In 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.

4.If the safety switch is operated due to the

unbalance of the tub, the program is stopped and

the alarm is given.

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 vane

creates a water currents as shown in figure.

Contact of safety switch door closing

Contact lever A

Normal(ON)

Position of

unbalanced

load(OFF)

door opening

Filter

Tub

Outer tub

Water

channel

Pulsator

NOTE:

The alarm finished when you close the door after opening it.

Check the unbalance of the wash load and the installation

condition.

7

LINT FILTER

Much lint may be obtained according to the kind of

clothes to be washed and some of the lint may also

stick 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 CLEAN THE LINT FILTER

1. Pull the filter frame upward.

2. Turn the lint filter inside out, and wash the lint off with water.

3. Return the filter as it was, and fix the filter frame to the slot.

SYNCRONOUS MOTOR

STRUCTURE

FUNCTIONAL PRINCIPLE

1. When the SYNCRONOUS MOTOR connected to the power source the SYNCRONOUS MOTOR rotates and revolves

the pulley by gear assembly for reducing.

2. When the pulley is rotated, the pulley winds the wire to open the drain valve.

3. Therefore, rotation of pulley is changed to the linear moving of wire.

4. The wire pulls the brake lever of Gear Mechanism Ass'y within 5 seconds.

5. After the wire pulled, gear assembly is separated from motor and condition of pulling is held by operation of the lever.

6. When the power is turned off, the drain valve is closed because the wire returns to original position.

PulsatorFilterBleach inlet

Pull

Loosen

Pulley

Lever

Inductive ring

Magent

Coil of motor

Magnet of motor

8

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.

PRINCIPLE OF BUBBLE GENERATOR

STRUCTURE

Pulsator shaft

One clutch bearing

Brake lever

Spinner shaft

Planetary gear

Clutch spring

Clutch boss

Spinner pulley

Sun gear

Internal gear

Planetary gear

Pulsator

Planetary

V.belt

Spinner

pulley

1 revolution

5 revolutions

Motor

V.BELT

Planetary

gear

1/5.0

Directly

Spinner Pulley Pulsator

Tub

Bobbin & coil

Trans core

Magnet

Armature Bellows

Air out hole

Protector A

Protector B

Air in hole

Air

9

PRINCIPLE OF INTAKE & OUTLET OF THE AIR

INTAKE : ARMATURE moves up, and BELLOWS inhales the air. At the same time, protector B is open and A is close.

OUTLET: ARMATURE moves down, and BELLOWS exhausts the air. At the same time, protector B is close and A is

open.

FUNCTIONAL PRINCIPLE OF TRANS & MAGNET

• The phase of A.C electric power changes to 60 cycle/second.

• The magnetic pole of trans core is changed by the change of the phase of A.C electric power.

• The core repeats push and pull (3600 times/min.) of the armature magnet.

FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE

ACROSS SECTION

FUNCTIONAL PRINCIPLE

Bubble generator 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.

A.C A.C

N

S

NS

Magnet

Leaf spring

Trans core

S

N

NS

Tub

Air bubble

Outer tub

Pulsator

Nozzle

10

3. STRUCTURE OF THE WASHING MACHINE

Inlet Hose (COLD)

Inlet Hose

(HOT) [Option]

Water Tap Adapter

(COLD)

Water Tap Adapter

(HOT) [Option]

In case of screw-shaped inlet

hoses water tap adapters will

not be provided.

Drain Hose

Clamp Under Base

Cover [Option] Drain Hose

Pump Model

Non-Pump Model

• SOFTENER INLET

Pour softener into the

softener inlet just before

wash and it will be added

into the tub automatically

just before the final rinse.

• BLEACH

INLET

• TUB

• CONTROL

PANEL

• ADJUSTABLE

LEG

• POWER SWITCH

• HOOK HOLE

• LINT FILTER

• HANDLE

• GROUND WIRE

• POWER CORD

ACCESSORIES

UP

11

4. FUNCTIONS OF THE CONTROL PANEL

Control Panel

It has micom sensor.

As the buttons are pressed, the lamps indicating the

selection of your desired washing program will light up.

Power Switch

• Press this switch to turn

the power ON or OFF.

• After turning off the power,

wait for more than 3

seconds and then turn it

on again.

Temperature Selection

Button

• This button is used to

select the water

temperature according to

the clothes being washed.

• Press this button until your

desired temperature

indicator light comes on,

and it will repeat following

signs:

COLD ¤AWARM ¤AHOT

Water Level Selector

• This selector is used to select the

washing water level according to

the size of the wash load.

Start/Hold Button

• Press this button to begin

operation or to stop

operation temporarily.

• Operation and temporary

stop are repeated as it is

pressed.

Process Selection Button

• This button is used to select the

desired process of washing.

• If a full cycle of wash, rinse, and

spin is not desired, the desired

process can be selected by

pressing this button until your

desired process indicator light

comes on.

Course Selection Button

• This button is used to select the

washing course according to

the type of the clothes being

washed.

• You can choose one of the four

courses by pressing this button

until your desired course

indicator light comes on.

ON

POWER

OFF

START/HOLD

COURSE

WATER LEVEL

WATER TEMP.

PROCESS

WASH

RINSE

SPIN

HOT

WARM

COLD

HIGH

MEDIUM

LOW

SMALL

FUZZY

SPEEDY

HEAVY

WOOL

[Option]

12

HOW TO INSTALL THE WASHING MACHINE

Selection of the Installing Place

Install the washer on the horizontal solid floor.

If the washer is installed on an unsuitable floor, it could make

considerable noise and vibration.

How to install on an Inclined Place

5. DIRECTIONS FOR INSTALLATION AND USE

Never install in these places.

• The place where it would be exposed to direct

sunlight.

• The place nearby a heater or heat appliances.

• The place where it would be supposed to be frozen in

winter.

• The kitchen with coal gas and a damp place like a

bathroom.

1. Height Setting

• After controlling the height by

turning the adjustable leg, let the

washer put down to the ground.

2.

Check the Horizontal Status

• Check the position of tub above

the center of the washer.

NOTES:

The opening must not be

obstructed by carpeting when

the washing machine is in-

stalled on a carpeted floor.

• The proper installation of the washing machine can

increase the wash effectiveness and the life of it.

If the washer is installed on an inclined floor, it could make considerable noise

and vibration and could cause a malfunction.

Use the height adjust rubber to adjust the washing machine so that it sits

properly.

In case that it goes over a

doorsill.

Don't let the height of the

drain hose exceed 20cm

from the gound.

Installing the Drain Hose [Non-pump Model]

¡™

In case of extending the drain

hose.

Don't let the total length

exceed 3m.

Be careful that the end of the

drain hose is not immersed

in water.

20Cm

3m

£

13

Installing the Drain Hose [Pump Model]

Never forget to install drain hose before operating this

washing machine. The packing box opened, there are a

drain hose, a clamp, and a hose fixture.

Attach the hose guide, included

in the accessory kit, to guide

the drain hose over the tub or

standpipe.

PULL HOSE

THROUGH

55mm

FLEX HOSE

GUIDE

APART

Hook the drain hose to the

edge of the tub, paying

attention that there are no

bends or constractions along

the drain hose.

Or, connect the drain hose to a

standpipe of a diameter greater than

that of the drain hose and at a height

of min. 70cm.

70Cm min

Position the washing machine

next to the wall.

MUST be

ventilated

NOTES:

1. Let the highest point of the drain hose be more than 1m above the floor.

If not so, the water in the washer could be drained during operation

2. Be sure that the height of the drain hose must be less than 1.5m above the floor.

If not so, the water in the washer could not drain.

3. The hose guide MUST be fitted to the drain hose. The drain hose sould not extend more than 55mm from the end of

the hose guide. This is to prevent ‘SYPHONING’.

If necessary the drain hose can be trimmed to length.

Connect the drain hose to the

drain outlet at the rear side of

the washing machine, and

fasten it tightly with the clamp

supplied.

¡

™

¢

£

14

HOW TO CONNECT THE INLET HOSE

In Installing the Inlet Hose

¶

Connect the inlet

hose to the water tap

by screwing the

connector D tightly.

Connector D

Connector C

Rubber

Packing

Hose

™

Connect the connector C of the inlet hose to the

water inlet of the

washer by turning

it clockwise to be

fixed tightly.

• Please check the

rubber packing

inside the connector

C of the inlet hose.

Water Tap

Adapter

Rubber

packing

Connector C

Collar

™

Loosen the four

screw at the water

tap adapter, but

don't loosen the

screws until they are

separated from the

water tap adapter.

Connector A

Tape

Connector B

Tap

Adapter

@

!

Connector B

∞

Connect the inlet

hose to the water tap

adapter by pulling

down the collar of

the hose end.

§

Connect the con-

nector C of the inlet

hose to the water inlet

of the washer by

turning it clock-wise

to be fixed tightly.

• Please check the rubber

packing inside the

connector C of the inlet

hose.

For Screw-Shaped Tap

¡

Pull down the collar

of the inlet hose to

separate it from the

water tap adapter.

£

Connect the water

tap adapter to the

water tap, and tighten

the four screws

evenly while pushing

up the adapter so that

the rubber packing

can stick to the water

tap tightly.

¢

Remove the tape,

and screw connector

B into connector A

tightly.

15

HOW TO GROUND THE WIRE

Grounding Method

• If your water tap or water pipe is

not made of metal, connect the

ground wire to a copper plate or a

metal rod and bury it in the earth.

* It is of no use connecting the

ground wire to the water pipe

made of plastic.

• If both your water tap and water

pipe are made of metal, connect

the ground wire to the base of

the water tap.

• In case of using 3-core cord,

there is no need for grounding.

20Cm

• Never connect it to a gas pipe because of danger of a

explosion. • Never connect it to a telephone wire or a

lightning rod because it is very dangerous at a

thunderbolt.

Never Connect the Ground Wire to Such a Thing

Gas Pipe Telephone Wire

16

6. PROCEDURE OF FULL-AUTOMATIC WASHING

START/HOLD

COURSE

WATER LEVEL

WATER TEMP. PROCESS

WASH

RINSE

SPIN

HOT

WARM

COLD

HIGH

MEDIUM

LOW

SMALL

FUZZY

SPEEDY

HEAVY

WOOL

Full Automatic Course

Fuzzy General clothes

Course

Speed Lightly stained

Course clothes: under-

wear, T-shirts,

Y-shirts, etc..

Heavy Heavily stained

Course clothes: blue-jean,

climbing clothes,

ruck-sack, sports

wear, etc..

Wool Delicate clothes:

Course Sweater, silk,

lingerie, etc.

After Operation is finished

• Close the water tap, and disconnect the inlet hose if

necessary.

• Turn off the power, and disconnect the power cord from

the electric outlet, being sure to take hold of the plug.

• Clean the lint filter.

Pressing

the Power

Switch

Selecting

Water level

• The Water

level is

selected

automatically

• The Water

level is fixed

to "HIGH"

Selecting Course

Kinds of the

Course Clothes

POWER

HIGH

MEDIUM

LOW

SMALL

HIGH

MEDIUM

LOW

SMALL

START/HOLD

End of Washing

It is informed

by buzzer.

FUZZY

SPEEDY

HEAVY

WOOL

Procedure to

Press the Button

COURSE START/HOLD

WATER LEVEL

FUZZY

SPEEDY

HEAVY

WOOL

FUZZY

SPEEDY

HEAVY

WOOL

FUZZY

SPEEDY

HEAVY

WOOL

17

START/HOLD

COURSE

WATER LEVEL

WATER TEMP. PROCESS

WASH

RINSE

SPIN

HOT

WARM

COLD

HIGH

MEDIUM

LOW

SMALL

FUZZY

SPEEDY

HEAVY

WOOL

Partial Selections Among Wash, Rinse or Spin

Stage 1 Only Wash

Stage 2 Only Rinse

Stage 3 Only Spin

Stage 4 Wash and

Rinse

Stage 5 Rinse and

Spin

Pressing

the Power

Switch

Selecting

Water level Selecting Process

WATER LEVEL

HIGH

MEDIUM

LOW

SMALL

PROCESS

WASH

RINSE

SPIN

START/HOLD

End of

Process

It is informed

by buzzer.

POWER

WASH

RINSE

SPIN

WASH

RINSE

SPIN

WASH

RINSE

SPIN

WASH

RINSE

SPIN

WASH

RINSE

SPIN

18

7. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT

GEAR MECHANISM ASS'Y REPLACEMENT

WARNING

BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE WASHING MACHINE, DISCONNECT THE

POWER CORD FROM THE ELECTRIC OUTLET.

• Raise the top plate on the outer cabinet.

• Loosen four screws mounting outer tub cover and

remove outer tub cover from the tub ass'y

Mounting

screw

Outer tub cover

• Remove the special Nut by using 'T' type box wrench.

• Remove the special washer.

"T" type box

wrench

Special Nut

Special

Washer

• Lay the front of the washer on the floor.

• Remove four bolts mounting the gear protect by

using a box wrench and remove gear protect.

• Remove the V-belt.

Mounting bolt

• Loosen the pulsator mounting screw and remove

pulsator.

Pulsator Mounting screw

• Remove the tub ass'y.

Pulsator

Special Nut

Special Washer

Tub ass'y

• Remove four bolts mounting the gear mechanism

ass'y by using a box wrench.

• Pull out the gear machanism ass'y.

Gear Mechanism

Ass'y

Mounting bolt

NOTE: To assemble the gear mechanism ass'y, reverse the disassembly procedure.

19

SYNCRONOUS MOTOR AND VALVE REPLACEMENT

Wire Bracket

Adjustment

screw

Syncronous motor

• Lay the front of the washer on the floor.

• Loosen the adjustment screw and three bolts

mounting the drain motor.

• Take out the wire of syncronous motor from the

bracket.

Valve frame Bracket

Adjustment

screw

Valve lid

Valve

packing

Valve lid PoleScrew driver

Pole

• Separate the syncronous motor from the bracket.

• Turn the valve lid by using screw driver as shown in

figure and remove the valve lid from the valve frame.

BRAKE ADJUSTMENT

Brake lever Adjustment screw

3mm

• Loosen the adjustment screw fastening the bracket

and place the adjustment screw to the brake lever

as shown in figure.

• Tighten the adjustment screw completely.

Brake lever

Adjustment bolt

Gear mechanism ass'y

Clutch lever

• Loosen the adjustment bolt and turn the adjustment

bolt until the end of the bolt touches to the b rake

lever.

• Tighten the lock nut and apply a small amount of

paint-lock.

NOTE:

1. The brake adjustment has been made at the factory, so that it is not to re-adjust. However, in case of insufficient

brake operation, perform the upper procedure.

2. Overtightening of the adjustment bolt will cause poor brake performance.

3. Undertightening of the adjustment bolt will cause continuous bracking and, thereby, cause the problems of the

motor during the spin cycle.

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