VACUUM CLEANER SERVICE MANUAL
Contents
1. Impeller hindrance Caused by foreign matters __ Exchange the motor Exchange the motor Remove the foreign matters 3 SWITCH ON MAIN MOTOR TURNS DOWN WITHIN A MOMENT AND BUZZES LGE Internal Use Only Micro switch breaks down There is no dust tank _ Exchange the micro switch Copyright 2007 LG Electronics Inc All right reserved Insert the dust tank in a body Only for training and service purposes 4 SWITCH OFF BUT MOTOR TURNS J Poor switch Exchange the switch Repair the slide volume of hose i 7 or triac of PWB assembly 5 WEAK SUCTION POWER Motor armature cut Exchange the motor Low rotation speed Foreign maners atachedto Remove the foreign matters the impeller Low voltage Inquire to the power utility company Hose and extension wands Remove the foreign matters gt are clogged with foreign gt in the hose or extension matters wands m Motor safety filter air filter or Remove the foreign matters or pie i m exhaust filter are filled with clean motor safety filter air p inhaled foreign matter filter or exhaust filter The regulator on the handle Close the slide knob by is opened sliding it Copyright 2007 LG Electro2. Motor Cover Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 Disassembly of Cord Reel Assembly 1 Pull out the one lead wire 2 Lift the cord reel assembly from body base 5 Disassembly of Micro Switch and Gear Assembly 1 Remove the two screws fastening the connetor pipe 2 Pull out the bending pipe 4 Disassembly of Motor Housing 3 Separate the sensor holder from the body cover 1 Remove the four screws fastening the body base assembly 4 Pull out the micro switch from the sensor holder 5 Remove the two screws fastening the gear assembly Gear Assembly Micro Switch Copyright 2007 LG Electronics Inc All right reserved 6 LGE Internal Use Only Only for training and service purposes TROUBLE SHOOTING GUIDE 1 SWITCH ON BUT MOTORS DO NOT TURN CHECKING CHECK THE POWER SOURCE CAUSE Poor plug insertion Power cord cut Interior lead wire cut Motor stator armature coil cut or damaged Poor switch contact point SOLUTION Insert again Repair or exchange Exchange the lead wire Exchange the motor Exchange the switch 2 SWITCH ON MAIN MOTOR DOES NOT TURN BUT BUZZES Motor armature cut Ball bearing defacement
3. NET WEIGHT 5 8 kg PACKING WEIGHT 10 0 kg NET DIMENSION 445 285 305 DXW X H This specifications are subject to change according to the buyer s request Copyright 2007 LG Electronics Inc All right reserved 4 LGE Internal Use Only Only for training and service purposes 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 of 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 f 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 Disassembly of Body Cover Assembly 1 Remove the three screws fastening the body base Body Base Assembly 2 Remove the dust tank from the vacuum cleaner Remove the three screws fastening the body cover LGE Internal Use Only 3 Disassemble the body cover assembly lifting the body cover assembly Pull out the two lead wires Disassembly of Motor Assembly 1 Remove the two screws fastening the cover holder 2 Remove the four screws fastening the motor cover 3 Unlock the one hook 4 Pull out the motor and disconnect the two lead wires from it
4. MCKBZi MCQBM1 EAUBAD 1 ADQBE1 MEKBM1 MDSBA2 gt ABNBAD MDSBA3 CMAMBBI LGE Internal Use Only 11 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV BODY COVER ASSEMBLY MCKCHD Copyright 2007 LG Electronics Inc All right reserved 12 LGE Internal Use Only Only for training and service purposes EV DUST TANK ASSEMBLY ACQTD1 9e MGJTRI LI LI LGE Internal Use Only 13 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ACCESSORIES Copyright 2007 LG Electronics Inc All right reserved 14 LGE Internal Use Only Only for training and service purposes LG
5. VACUUM CLEANER MODEL VK7918NNA CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL April 2010 P No MFL62620210 Printed in Korea 5 SAFETY PRECAUTIONS 3 CAUTIONS em Tp T 3 DESCRIPTION Mec 4 SPECIFICATIONS go 4 DISASSEMBLY 5 6 TROUBLE SHOOTING rbd cta pista Raw Kad tar dne nude 7 9 cie ha psdibrmicori MIT 10 EXPLODED 11 14 REPLACEMENT PARTS LIST insistir Geena 15 16 Copyright 2007 LG Electronics Inc All right reserved 2 LGE Internal Use Only Only for training and service purposes SAFETY PRECAUTIONS BEFORE OPERATING THIS VACUUM CLEANER READ THIS SERVICE MANUAL THOROUGHLY AND OBSERVE EACH POINT CAREFULLY Air filter and motor safety filter 1 These filters are reusable 2 Never use the vacuum cleaner without the filters It may damage the motor 3 When the suction power decreases wash the air filter and the motor safety filter with water 4 When the alarm sounds wash the air filter and the motor safety filter at least once every 3 months NOTE Reusing of the air filter and motor safety filter Never wash the filters in a washing machine or in a dishwasher Never use hot water for washing the filters e Reu
6. nics Inc All right reserved 8 LGE Internal Use Only Only for training and service purposes 6 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 Armature is cut or foreign matters attached Exchange the motor Remove foreign matters 7 RADIO TV RECEPTION DISTURBANCE y Poor cord lead wire Exchange cord lead wire Poor electric connector or receiver Repair the electric connector or receiver Poor capacitor Exchange the capacitor 8 IMPROPER TUBE OF NOZZLE CONNECTION LGE Internal Use Only Bent connection parts Exchange the parts Poor connection Caused by foreign matters Remove the foreign matters and reconnect Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes SCHEMATIC DIAGRAM Red H E j Micro switch Green o E Blue E Compression otor Brown Main Motor T P Cord reel Copyright 2007 LG Electronics Inc All right reserved 10 LGE Internal Use Only Only for training and service purposes EV EXPLODED VIEW BODY BASE ASSEMBLY VK7918NNA VK7918NNA APTQLGU CMDJBMI C
7. s normally warm But if extraordinarily hot air is exhausted check if the telescopic pipe hose or clean filter is clogged or not 7 Electric shock could occur if used outdoors or on wet surfaces 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 LGE Internal Use Only 2 In case of exchanging other parts refer to the exploded view Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DESCRIPTION Flexible Hose Assembly Telescopic Pipe Assembly Cord Reel Power Cord Button Dust Tank Floor Nozzle Assembly depend on model ATTACHMENTS DEPEND ON MODEL A 21N 1 NOZZLE CREVICE TOOL MODEL REFER TO THE COVER PAGE PACKING DIMENSION 615 330 333 DX WXH POWER SOURCE ON RATING PLATE ATTACHMENTS DEPEND ON MODEL POWER CONSUMPTION ON RATING PLATE FLEXIBLE HOSE 1EA e POWER CONTROL TELESCOPIC PIPE ASSEMBLY 1EA MAIN SLIDE KNOB CONTROL F HOSE FLOOR NOZZLE ASSEMBLY 1EA e CORD LENGTH 9m LIN TNO E orie 1EA HOSE LENGTH 1 6 m O O ntes 1EA
8. se the filters after drying it completely in the shade for a day Do not dry near fire or direct sunray 2 Exhaust filter 1 This filter is reusable HEPA filter 2 For clean air this filter must be assembled NOTE Reusing of the exhaust filter Never wash the exhaust filter with water Dust off the exhaust filter Clean the exhaust filter at least once a year Do not brush the filter This will cause permanently damage allowing dust to by pass the filter CAUTIONS 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 4 Attachments Nozzle Clean a hard floor and a carpet floor Crevice Tool Clean any crevice inside corners or window frames However do not use the crevice tool more than 20 minutes because it may cause harm to the motor Dusting brush Clean picture frames furniture frames books and other irregular surfaces Upholstery nozzle Clean the furniture mattresses etc 5 Close supervision is necessary when this vacuum cleaner is used by near children Children s carelessness may cause damage to the cleaner or injure persons 6 Air exhausted from the vacuum cleaner i
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