VACUUM CLEANER SERVICE MANUAL
Contents
1. RADIO TV RECEPTION DISTURBANCE Poor cord lead wire Exchange cord lead wire Poor rectification of carbon brush Exchange the motor Poor electric connector or Repair the electric connector receiver or receiver Poor capacitor Exchange the capacitor 7 IMPROPER TUBE OF NOZZLE CONNECTION Bent connection parts Exchange the parts Poor connection Caused by foreign matters Remove the foreign matters and reconnect LGE Internal Use Only 9 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes BLOCK DIAGRAM SLIDE VOLUME PRESSURE LED PWB ASM SLIDE VOLUME LED PWB ASM PRESSURE S W D6 1N4002 D OPTION 470K 1 2W 470K 1 2W Copyright 2007 LG Electronics Inc All right reserved 10 LGE Internal Use Only Only for training and service purposes EXPLODED VIEW BASE ASSEMBLY BODY Fr er gt IS MBDBB1 i sosa LGE Internal Use Only 11 Copyright 2007 LG Electronics Inc All right reserved Only for training and servi urposes COVER ASSEMBLY BODY Copyright O 2007 LG Electronics Inc All right reserved 12 LGE Internal Use Only Only for training and service purposes ACCESSORIES LGE Internal Use Only 13 Copyright O 2007 LG Electronics Inc All right reserved Only for tra2. EIGHT 5 4 kg e PACKING WEIGHT 9 4 kg e NET DIMENSION 298 x410 x 290 W xD x H mm e PACKING DIMENSION 330 x 565 x330 W xD x H mm e ATTACHMENTS NOSE Bee Au 1EA TELESCOPIC PIPE ASSY occ 1EA NOZZLE ASS iia bad 1EA DUSTING BRUSH amp CREVICE TOOL 1EA UPHOLSTERY NOZZLE oseese 1EA BRUSH ASS N a naar 1EA EXTRA AIR FILTER ensensnsennennnennnnnnnnnnnnnn 1EA e This specifications are subject to change according to the buyer s request Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 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 3 Disassemble the body cover raising the body cover 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 Motor Assembly Replacement 1 Detach exhaust cover in the direction of the arrow and unhook the motor covr with driver 2 Pull out the motor a
3. VACUUM CLEANER MODEL V C7780CEV CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL N dy P No MFL35720509 CONTENTS SAFETY PRECAUTIONS sensan A ida 3 CAUTION Socio as 3 DESCRIPTION a2 a ea da Nao 4 SPEGIFIGATIONS nasse nee rare ansehen 4 DISASSEMBLY catan ran at 5 6 TROUBLE SHOOTING GUIDE 4444444044444440nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nn 129 BLOGK DIAGRAM 2 2 ee est 10 EXPLODED VIEW vuitton id sa 11 13 Copyright O 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 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 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 2 Exhaust filter Washable HEPA filter 1 This filter is reusable HEPA filter 2 For clean air theis filter must be a
4. e 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 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 O 2007 LG Electronics Inc All right reserved Only for training and service purposes DESCRIPTION Flexible Hose ASS Y Telesscopic Pipe ASS Y Switch Button ON OFF e V C7760NT NE NTV Motor Cover CANISTER ATTACHMENTS DUSTING BRUSH 8 CREVICE TOOL UPHOLSTERY NOZZLE SPECIFICATIONS e MODEL REFER TO THE COVER PAGE e POWER SOURCE ON RATING PLATE e POWER CONSUMPTION ON RATING PLATE e POWER CONTROL MAIN SLIDE CONTROL F HOSE V C7750HE V C7760HT HE V C7766HE V C7768HEU MICOM CONTROL F HOSE V C7770CT CE CTV CEU PUSH ON OFF BODY V C7760NT NE V C7765NT NTV SUB VACUUM POWER ADJUSTMENT BY SLIDE KNOB NT NE e CORD LENGTH 7 m e HOSE LENGTH 1 8 m e NET W
5. e the foreign matters LGE Internal Use Only ET Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 SWITCH OFF BUT MOTOR TURNS Repair the slide volume of hose Poor connection Poor switch V C7760NT NE NTV Exchange the switch 4 WEAK SUCTION POWER Carbon bis detaced Exchange the carbon brush or the motor Motor armature cut Exchange the motor Foreign Manere atache Remove the foreign matters the impeller Low voltage Inquire to the power utility company Hose and extension wands Remove the foreign matters are clogged with foreign in the hose or extension matters wands Low rotation speed Motor turns normally but suction power is weak The slide knob on the handle is opened or the control knob is located on weak position The motor filter is clogged Clean the motor filter The exhaust filter is clogged Exchange the exhaust filter Copyright 2007 LG Electronics Inc All right reserved 8 LGE Internal Use Only Only for training and service purposes Close the slide knob by sliding it Regulate the knob 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
6. ining and service purposes
7. nd disconnect the lead wires from it Motor Ass y LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 Cord Reel Assembly Replacement 5 Disassembly of Body Base Assembly 1 Lift the cord reel assembly from the body base 1 Remove the two screws fastening the motor housing cover 4 Disassembly of Top Cover 1 Remove the three screws fastening the body cover and top cover Copyright O 2007 LG Electronics Inc All right reserved 26 LGE Internal Use Only Only for training and service purposes TROUBLE SHOOTING GUIDE 1 SWITCH ON BUT MOTOR DOSE NOT TURN CHECKING CAUSE SOLUTION The fuse is melt down in the coverknife switch CHECK THE POWER SOURCE 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 Exch h cut or damaged xchange the motor Poor contact carbon brush defaced Exchange or repair the motor Poor switch contact point V C7760HT HE V C7765HT HTV exorange Me SWEET 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 Remov
8. ssembled 3 4 When the light of body is on wash the exhaust filter with water NOTE Reusing of the exhaust filter Never wash the filter in a washing machine or ina dishwasher Wash the exhaust filter with water once a year 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 3 Avoid suction such materials as CAUTIONS 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 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 5 Close supervision is necessary when this vacuum cleaner is used by or near children Children s carelessness may cause damage to th
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