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VACUUM CLEANER
SERVICE MANUAL
MODEL : V-C777S
CAUTION
BEFORE SERVICING THE UNIT, READ THE
"SAFETY PRECAUTIONS" IN THIS MANUAL.
P/NO : MFL55145211
May, 2008
Printed in Korea
CONTENTS
SAFETY PRECAUTIONS.............................................................................................................................3
CAUTIONS ...................................................................................................................................................3
DESCRIPTION..............................................................................................................................................4
SPECIFICATIONS ........................................................................................................................................4
DISASSEMBLY.............................................................................................................................................5
TROUBLE SHOOTING ............................................................................................................................6~8
BLOCK DIAGRAM .......................................................................................................................................9
SCHEMATIC DIAGRAM...............................................................................................................................9
CIRCUIT DIAGRAM .....................................................................................................................................9
EXPLODED VIEW ................................................................................................................................10~12
REPLACEMENT PARTS LIST.............................................................................................................13~14
-2-
SAFETY PRECAUTIONS
BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY,
AND OBSERVE EACH POINT CAREFULLY.
1. Motor filter(Air Cleaner)
1) This filter is reusable.
2) Never use the vacuum cleaner without filter.
It may damage the motor.
3) When the light of body is on, wash the motor filter
with water and brush.
4) Even if the light is not on, wash the motor filter at
least once 6 months.
3. Avoid suction such materials as :
1) Liquid or wet dust :
Clogs the ventilation holes, reduces the suction
power significantly and harms the motor.
2) Inflammable liquids such as benzene, alcohol or
solvents.
3) Burning objects such as cigarette butts.
4) Bulky objects such as vinyl, paper etc.
5) Sharp objects such as needles, pins, metal, glass
particles etc.
NOTE : Reusing of the motor filter.
• Never wash the filter in a washing machine or in a
dishwasher.
• Never use hot water for washing the filter.
• Reuse the filter after drying it completely in the
shade for a day.
• Do not dry near fire or direct sunray.
4. Attachments
• Nozzle : For cleaning wooden floor, the room floor
and carpet.
• Dusting Brush and Crevice Tool:
For cleaning any crevice, inside corners of window
frames.
For delicate vacuuming of fabrics on the furniture,
curtains, etc.
• Upholstery Nozzle : For vacuuming the dust on the
upholstery.
However, do not use the crevice tool more than 20
minutes because it may cause harm to the motor.
2. Exhaust filter(Washable HEPA filter)
1) This filter is reusable HEPA filter.
2) For clean air, theis filter must be assembled.
3) Wash the exhaust filter with water once a year.
NOTE : Reusing of the exhaust filter.
• Never wash the filter in a washing machine or in a
dishwasher.
• Never use hot water for washing the filter.
• Reuse the filter after drying it completely in the
shade for a half day.
• Do not dry near fire or direct sunray.
• Do not brush the filter. This will cause permanently
damage allowing dust to by-pass the filter.
5. Close supervision is necessary when this
vacuum cleaner is used by or near children.
Children’s carelessness may cause damage to
the cleaner or injure persons.
6. Air exhausted from the vacuum cleaner is
normally warm. But if extraordinarily hot air is
exhausted, check if the telescopic tube, hose or
clean filter is clogged or not.
7. Electric shock could occur if used outdoors or
on wet surfaces.
CAUTIONS
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER,
DISCONNECT THE ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.
1. Motor exchange
1) Separate the Body Cover and Body Base by
unfastening the screws.
2) After disconnecting the lead wires, replace the
old motor with a new one.
2. In case of exchanging other parts. refer to the
exploded view.
-3-
DESCRIPTION
Cord Reel Button
Flexible Hose
Assembly
Telesscopic
Pipe Assembly
Dust Tank
Power Cord
Filter Cover
Nozzle Assembly,Quilt
Nozzle Assembly,Floor
CANISTER
ATTACHMENT S
DUSTING BRUSH & CREVICE TOOL
UPHOLSTERY NOZZLE
BRUSH Assembly
SPECIFICATIONS
• MODEL : REFER TO THE COVER PAGE
• POWER SOURCE : ON RATING PLATE
• POWER CONSUMPTION : ON RATING PLATE
• POWER CONTROL :
- MAIN : PUSH ON/OFF(BODY)
- SUB : VACUUM POWER ADJUSTMENT BY
SLIDE KNOB
• CORD LENGTH : 7m
• HOSE LENGTH : 1.8m
• NET WEIGHT : 5.3Kg
• PACKING WEIGHT : 8.4Kg
• NET DIMENSION : 290×443×311(W×D×H)mm
• PACKING DIMENSION : 330×567×385(W×D×H)mm
• ATTACHMENTS
HOSE ................................................................................... 1EA
TELESCOPIC PIPE Assembly .................................... 1EA
NOZZLE ASSEMBLY,FLOOR ..................................... 1EA
NOZZLE ASSEMBLY,QUILT ....................................... 1EA
DUSTING BRUSH & CREVICE TOOL ..................... 1EA
UPHOLSTERY NOZZLE ............................................... 1EA
BRUSH ASSEMBLY ....................................................... 1EA
• This specifications are subject to change according to the buyer’s request.
-4-
DISASSEMBLY
NOTE : Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical
power supply cord from the wall outlet.
• Almost all the parts of this vacuum cleaner can be
disassembled with a screw driver and each
connecting component easily fits each other.
Disassemble one by one referring to the exploded view.
• If possible, don’t disassemble except for the
necessary parts. It is not necessary to disassemble
the parts that are not detailed in the exploded view.
1. Body Cover Assembly Replacement
1) Remove the dust tank from the set.
2) Bring out the motor and disconnect the lead wires
from it.
Motor
Assembly
2) Remove the four screws fastening the body base.
3. Cord Reel Assembly Replacement
1) Remove the cord reel cover by unfastening the
screw.
3) Disassemble the filter cover, widening the both of
filter cover, and then pull out the lead wires from
the push switch.
2) Lift the cord reel assembly from the body base.
Cord Reel
Assembly
2. Motor Assembly Replacement
1) Unhook the motor housing cover in the direction
of the arrow.
-5-
TROUBLE SHOOTING
1. SWITCH ON BUT MOTOR DOES NOT TURN
CHECKING
CHECK THE POWER
SOURCE
CAUSE
SOLUTION
The fuse is melt down in the
coverknife switch.
Exchange the fuse.
Poor plug insertion
Insert again.
Power cord cut
Repair or exchange.
Interior lead wire cut
Exchange the lead wire.
Motor(stator, armature) coil
cut or damaged.
Exchange the motor.
Poor contact carbon brush
defaced.
Exchange or repair the motor.
Poor switch contact point
Exchange the switch.
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES
Motor armature cut.
Exchange the motor.
Ball bearing defacement
Exchange the motor.
Impeller hindrance
(Caused by foreign matters)
Remove the foreign matters.
-6-
3. SWITCH OFF BUT MOTOR TURNS
Poor connection
Repair.
Poor switch
Exchange the switch.
Carbon brush defaced
Exchange the carbon brush
or the motor.
Motor armature cut
Exchange the motor.
Foreign matters attached to
the impeller
Remove the foreign matters.
Low voltage
Inquire to the power utility
company.
Hose and extension wands
are clogged with foreign
matters.
Remove the foreign matters
in the hose or extension
wands.
The slide knob on the handle is
opened or the control knob is
located on weak position.
Close the slide knob by sliding it.
Regulate the knob.
The motor filter is clogged.
Clean the motor filter.
The exhaust filter is clogged.
Exchange the exhaust filter.
4. WEAK SUCTION POWER
Low rotation speed
Motor turns normally,
but suction power is weak.
-7-
5. VIBRATION NOISES
Loose parts
Secure firmly.
Unbalanced motor assembly
Exchange or repair the motor.
Foreign matters are attached
to the impeller.
Remove the foreign matters.
Poor carbon brush rectification
Exchange the motor.
Armature is cut or foreign
matters attached.
Exchange the motor
Remove foreign matters.
6. RADIO, TV RECEPTION DISTURBANCE
Poor cord, lead wire
Exchange cord, lead wire.
Poor rectification of
carbon brush
Exchange the motor.
Poor electric connector or
receiver
Repair the electric connector
or receiver.
Poor capacitor
Exchange the capacitor.
7. IMPROPER TUBE OR NOZZLE CONNECTION
Bent connection parts
Exchange the parts.
Poor connection
(Caused by foreign matters)
Remove the foreign matters
and reconnect.
-8-
BLOCK DIAGRAM
SCHEMATIC DIAGRAM
CIRCUIT DIAGRAM
-9-
#EV#
EXPLODED VIEW
BASE ASSEMBLY, BODY
V-C777S(V-C7070CEV.ACHQLUK)
MCKBZ1
MBLTD1
MHYTC1
MCQBM1
MFGTD1
EAUBA1
MDSTA1
MCQBA1
MCKBY1
ADQTC1
MGJTC9
ADQBC1
MGJTC8
MEABE1
MJMTD1
MDSBA1
AHDBR1
MEKBM1
MEGBC1
MFCBC1
MHYBC1
MCKBE8
ADQBE1
MAMBB1
AJWBA1
MBDBB1
MCKBE9
AHJBA1
-10-
#EV#
COVER ASSEMBLY, BODY
MCKCD1
EBRCM2
MGJCD1
MCKCG1
MBLCH1
MCKCY1
AEDCA1
EBRCD1
MCKCB1
EBRCM1
MFGCA1
MDSCA2
ACVCA1
MHYCC1
EBFCA1
MCKCS1
MGECC1
MDSCA1
MGECC2
-11-
#EV#
ACCESSORIES
AGBN14
AGRPT1
AGBN21
ABCAD1
AEMAF1
ABCAF1
AGBNU1
-12-
REPLACEMENT PARTS LIST
LOC. NO.
PART NO.
DESCRIPTION
ABCAD1
5203FI2069A
Brush Assembly,Dust
R
ABCAF1
5203FI3744A
Brush Assembly,Filter
R
ACVCA1
4901FI3435D
Damper Assembly
R
ADQBC1
5231FI3758C
Filter Assembly,Clean
R
ADQBE1
5231FI3767C
Filter Assembly,Exhaust
R
ADQTC1
5231FI2494A
Filter Assembly,Clean
R
AEDCA1
3651FI1309C
Handle Assembly
R
AEMAF1
5215FI1319Y
Hose Assembly,Flexible
R
AGBN14
5249FI1407A
Nozzle Assembly,Quilt
R
AGBN21
5249FI1399C
Nozzle Assembly,Floor
R
AGBNU1
5248FI3454A
Nozzle Assembly,Upholstery
R
AGRAE1
5201FI1005A
Pipe Assembly,Elbow
R
AGRPT1
5201FI1010D
Pipe Assembly,Telescopic
R
AHDBR1
4687FI1482E
Reel Assembly
R
AHJBA1
4441FI3605J
CASTER ASSEMBLY
R
AJWBA1
4661FI3613J
Wheel Assembly
R
EAUBA1
4681FI2456D
Motor Assembly,AC,Vacuum Cleaner
R
EBFCA1
6601FI3501E
Switch Assembly,Pressure
R
EBRCD1
6871FX3080A
PCB Assembly,Display
R
EBRCM1
6871FX2141H
PCB Assembly,Main
R
EBRCM2
6871FX2145A
PCB Assembly,Main
R
SVC
MAMBB1
3040FI1487E
Base,Body
R
MAY000
3890FG1171A
Box
R
MBDBB1
4820FI2391E
Bumper,Body
R
MBLCH1
5006FI3691C
Cap,Handle
R
MBLTD1
5006FI1327H
Cap,Dust
R
MCKBE8
3550FI2503C
Cover,Exhaust Filter
R
MCKBE9
3550FI2504C
Cover,Exhaust Filter
R
MCKBY1
3550FI1558E
Cover,Cord Reel
R
MCKBZ1
3550FI3800A
Cover,Motor Housing
R
MCKCB1
3550FI1560P
Cover,Body
R
MCKCD1
3550FI2513A
Cover,Display
R
MCKCG1
3550FI1559J
Cover,Accessory
R
MCKCS1
3550FI1561J
Cover,Body(Sub)
R
MCKCY1
3550FI3810L
Cover,Hole
R
MCQBA1
3940FI3646A
Damper,Absorbing
R
MCQBM1
3920FI3770B
Damper,Motor Mount
R
MDSBA1
3920FI3769A
Gasket
R
MDSCA1
4036FI3603A
Gasket
R
MDSCA2
4036FI3604A
Gasket
R
REMARK
R : SERVICE PARTS
-13-
LOC. NO.
PART NO.
DESCRIPTION
MDSTA1
7526FI3001A
Gasket
R
MEABE1
4974FI2396A
Guide,Exhaust
R
MEGBC1
4930FI2448E
Holder,Cord
R
MEKBM1
3660FI2286A
Housing,Motor
R
MFCBC1
4510FI3598P
Lever,Cord Reel
R
MFGCA1
4026FI3669L
Locker
R
MFGTD1
4056FI3648D
Locker,Dust Cap
R
MFL552
3828FI2833V
Manual,Owners
R
MGECC1
5200FI2480A
Pipe,Connector
R
MGECC2
5200FI1215G
Pipe,Connector
R
MGJCD1
3500FI2243M
Plate,Display
R
MGJTC8
3300FI3683F
Plate,Cover
R
MGJTC9
3300FI3684F
Plate,Cover
R
MHYBC1
4970FI4694F
Spring,Coil
R
MHYCC1
4970FI4260D
Spring,Coil
R
MHYTC1
4970FI4724A
Spring,Coil
R
MJMTD1
4838FI1397D
Tank,Dust
R
SVC
REMARK
R : SERVICE PARTS
-14-