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1. Is the battery Install battey in correct direction YES connected in reverse direction Is there some sort of conductive foreign YES matter in the hole where the battery is inserted YES Is the battery short circuited Remove foreign matter or opened N Faulty internal circuit Replace PCB 18 Replace the battery 11 STANDARD REPAIR TIME UNIT SCHEDULES MODEL Fixed Variable 10 20 30 40 50 60 min General Assembly General Assembly Work Flow Prism Fan Fuse Prism Fuse Case A B Set Cord Terminal A Printed Circuit Board Ass y Case A B Set Cord Terminal A Printed Circuit Board Ass y 19 LIST NO G845 Hitachi Power Tools ELECTRIC TOOL PARTS LIST E CHARGER E1 2006 6 22 Model UC 18YRL PARTS CODE NO DESCRIPTION HITACHI LABEL REMARKS UC 18YRL 321 679 PRISM 326 281 CASE A B SET 318 262 CORD 318 261 318 259 CORD CORD FOR GBR FOR USA CAN 318 260 CORD FOR AUS 326 306 FAN 319 781 FUSE 125V 3 15A 319 780 326 285 FUSE 250V 3 15A TERMINAL A PRINTED CIRCUIT BOARD ASS Y 120V INCLUD 6 7 PRINTED CIRCUIT BOARD ASS Y 230V 240V INCLUD 6 7 CAUTION LABEL F
2. MODELS UC 18YRL UC 18YFL Hitachi Power Tools CHARGER TECHNICAL DATA AND UC 18YRL UC 18YFL SERVICE MANUAL LIST Nos UC 18YRL G845 UC 18YFL G844 Nov 2006 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT CONTENTS Page 1 PRODUCT NAME aa kna andaga ga aaa BG iii 1 2 MARKETING OBJECTIVE aa AA RAANG AA 1 3 APPLICATIONS Lc i da ia ana me ia iii 1 4 SELLING POINTS RANI ANA au aaa ilaria dea aa aaa i pda aaa Da aaa ae dau a 2 4 1 Selling Point DESCNPUONS aaah ii ae tt a i te ai el t a ce 3 5 SPECIFICATIONS AANGAL 7 5 1 Specifications naanakan ea a a Dat ai a n des tn a a a al di 7 5 2 Comparisons with Similar Products aa ag aa al name nana neam enma nana 7 6 PRECAUTIONS IN SALES PROMOTION rire 8 6 1 Safety INSWUCLONS rase ai aa a ta aa aa te a a a i dieta ia it 8 6 2 Extra Precautions in Sales Promotion iii 9 7 QUESTIONS AND ANSWERS ON MODELS UC 18YRL AND UC 18YFL 10 8 GENERAL PRECAUTIONS Li aa a nani it c aa aa aaa a ai mal eta oii ka 13 8 1 Models UC 18YRL and UC 18YFL ss stie ata al et lt an i d e ai d i a d 13 8 2 Pilot Lamp Indications sasanga cena ceai ca teal tea a dia ina KAHANANE dia 13 9 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY nnnvvvvnnnnnnnnnvnvnnnnnnnnnvnnennnnnnnnennvnnnnenr 14 9 1 DIsassembi AN a Cota a lai 14 9 22 REASSEMDIV asti E ia amines AN d
3. temperature sensor thermistor and C a timer A Overcharge range li gt Battery voltage se Li ion battery 4 a naka ia Battery temperature 55 C dT dt o 5 Li ion batte A sag 8 Charger cael current 4 Battery temperature 60 C 5 oa O too Stop current 2A 33 52 Ni MH battery 38 E 5 gt temperature 33 2 E 5 120 minute timer FPP 583558 OOmm m Ni Cd battery temperature Charging time Battery internal gas pressure Fig 7 Relationships of time voltage temperature and gas pressure while charging A AV This detects the fall in battery voltage at the end of charging using the value AV and suspends charging dT dt This system is applicable to Ni MH and SUPER Ni MH batteries This detects the variation in temperature of Ni MH and SUPER Ni MH batteries by the value dT dt at the end of charging and suspends charging B Built in battery temperature sensor In the event both the AV system and the dT dt system fail to detect completion of recharging recharging is automatically stopped when the battery temperature reaches 60 C in the case of the nickel cadmium Ni Cd batteries or 55 C in the case of the nickel metal hydride Ni MH SUPER nickel metal hydride SUPER Ni MH and lithium ion Li ion batteries C Timer Should both the AV system dT dt system and the temperature sensor fail the timer automatically stops charging within 120 minutes from the beginning o
4. before the battery is fully charged and then suspends charging The dT dt system detects a sudden temperature rise which occurs just before the battery is fully charged and then suspends charging Q4 Is there any difference in the amount of work possible per charge between the batteries charged with the AV microcomputer control system and the batteries charged with dT dt microcomputer control system A4 The dT dt microcomputer control system may have a slightly shorter charging capacity approx 3 to 5 Yo However the amount of work possible per charge varies widely depending on the ambient temperature the efficiency with which the battery charger is used etc so that there is essentially no difference between batteries charged with either system Q5 The battery charger is supposed to be used within the ambient temperature range of 0 to 40 C What happens if the charger is used at under 0 C or above 40 C A5 If charging is attempted when the ambient temperature is below O C charging is not possible or overcharging occurs because the recharging control circuit does not function properly If charging is attempted when the ambient temperature is above 40 C charging is stopped before the battery is fully charged due to temperature rise during charging because the difference between the upper limit of the rechargeable battery temperature Ni Cd batteries 60 C Ni MH batteries 55 C SUPER Ni MH b
5. 2 V 1 3 Ah EB 1214S 12 V 1 4 Ah EB 914 9 6 V 1 4 Ah EB 1214L 12 V 1 4 Ah EB 1414 14 4 V 1 4 Ah EB 1414S 14 4 V 1 4 Ah EB 9B 9 6 V 2 0 Ah EB 1812S 18 V 1 2 Ah EB 12B 12 V 2 0 Ah EB 18B 18 V 2 0 Ah EB 14B 14 4 V 2 0 Ah EB 1820 18 V 2 0 Ah EB 1220BL 12 V 2 0 Ah EB 1814SL 18 V 1 4 Ah EB 924 9 6 V 2 4 Ah EB 1820L 18 V 2 0 Ah EB1224 12 V 2 4 Ah EB1824L 18 V 2 4 Ah EB 1424 14 4 V 2 4 Ah Ni MH batteries EB 1222HL 12 V 2 2 Ah EB 926H 9 6 V 2 6 Ah EB 930H 9 6 V 3 0 Ah EB 1226H 12 V 2 6 Ah EB 1230H 12 V 3 0 Ah EB 1426H 14 4 V 2 6 Ah EB 1230HL 12 V 3 0 Ah EB 1826HL EB 1430H 14 4 V 3 0 Ah Super Ni MH batteries EB 983X 9 6 V 3 3 Ah EB 1230X 12 V 3 0 Ah EB 1233X 12 V 3 3 Ah EB 1430X 14 4 V 3 0 Ah EB 1433X 14 4 V 3 3 Ah EB 1830X 18 V 3 0 Ah EB 1833X 18 V 3 3 Ah Li ion batteries EBL 1430 14 4 V 3 0 Ah EBM 1830 18 V 3 0Ah 4 SELLING POINTS 1 Accepts both Ni MH and Ni Cd batteries 2 Rapidly charges all Hitachi EB series batteries Charging time 1 2 Ah 18 minutes 1 4 Ah 20 minutes 2 0 Ah 30 minutes 2 4 Ah 35 minutes 2 6 Ah 40 minutes 3 0 Ah 45 minutes 3 3 Ah 50 minutes 3 Hitachi original charge control mechanism for longer battery life Capable of recharging both nickel cadmium Ni Cd nickel metal hydride Ni MH SUPER nickel metal hydride SUPER Ni MH and Lithium i
6. Ni MH and lithium ion Li ion batteries are heated to high temperatures during recharging this charger operates within a range of 10 C temperature difference between the maximum battery temperature when starting recharging 45 C and the temperature when stopping recharging 55 C Thermistor 95 C thermal protector Thermistor Thermostat terminal terminal terminal terminal terminal le e terminal terminal Terminal positions terminal Terminal positions Fig 2 Ni Cd batteries 7 2 to 12 V Fig 3 Ni Cd batteries 14 4 V 18 V Discriminating resistor Thermistor terminal terminal terminal terminal Terminal positions Fig 4 Ni MH batteries 9 6 to 12 V SUPER Ni MH batteries 9 6 to 12 V 95 C thermal protector terminal inal lt O termina Protective circuit board terminal of ne D terminal terminal terminal Thermistor Discriminating resistor Discriminating 95 C thermal protector resistor Thermistor terminal D terminal terminal terminal terminal Di Terminal positions Fig 5 Ni MH batteries 14 4 V 18 V SUPER Ni MH batteries 14 4 V 18 V Terminal positions Fig 6 Li ion batteries 14 4 V 18 V 4 1 4 3 way overcharge protection system Overcharge protection is ensured by a A A V system or dT dt system for Ni MH battery B built in battery
7. OR USA CAN Slo wmlainlalolia alalalalwln 300 036 TAPPING SCREW VV FLANGE D3X20 NAME PLATE JR mia JI AAA eS ALTERNATIVE PARTS Printed in Japan 6 06 060622N LIST NO G844 Hitachi Power Tools ELECTRIC TOOL PARTS LIST E CHARGER 2006 6 20 E1 Model UC 18YFL PARTS CODE NO DESCRIPTION HITACHI LABEL REMARKS UC 18YFL 321 679 PRISM 326 281 CASE A B SET 318 262 CORD 318 259 318 260 CORD CORD FOR USA CAN FOR AUS 318 261 CORD FOR GBR 319 781 FUSE 125V 3 15A 319 780 FUSE 250V 3 15A 326 285 TERMINAL A PRINTED CIRCUIT BOARD ASS Y 120V INCLUD 5 6 PRINTED CIRCUIT BOARD ASS Y 230V 240V INCLUD 5 6 CAUTION LABEL FOR USA CAN OOININIO A a BIBIBIB OMN 300 036 TAPPING SCREW W FLANGE D3X20 NAME PLATE ALTERNATIVE PARTS Printed in Japan 6 06 060620N Hitachi Koki Co Ltd
8. a 14 9 3 Confirmation after Reassembly i 14 10 TROUBLESHOOTING GUIDE NG AA 15 10 1 Troubleshooting Based on Pilot Lamp Indications nenea enma eee 15 10 2 Troubleshooting and Repair Procedures aaa anae eaaa aane anana naen nana ema nana 15 11 STANDARD REPAIR TIME UNIT SCHEDULES anvrnnnnnnnnnnvvnnnnnnnnnnnvnnnnnnnnnnnvnnennnnnnnnnvnnennnnnnnne 19 Assembly Diagram for UC 18YRL Assembly Diagram for UC 18YFL 1 PRODUCT NAME Hitachi Charger Models UC 18YRL and UC 18YFL 2 MARKETING OBJECTIVE The new chargers Models UC 18YRL and UC 18YFL are developed to recharge the Hitachi s new lithium ion batteries They are also capable of recharging the currently applicable nickel cadmium Ni Cd and nickel metal hydride Ni MH batteries Thanks to the cooling fan incorporated in the Model UC 18YRL except the Model UC 18YFL the time required for recharging a battery and the time required for waiting until a hot battery is cooled down to the allowable temperature are substantially shorter than the Model UC 24YFA 3 APPLICATIONS Recharging of Hitachi batteries Applicable batteries Ni Cd batteries EB 712S 7 2V 1 2 Ah EB 714S 7 2 V 1 4 Ah EB 912S 9 6 V 1 2 Ah FEB 7S 7 2 V 1 2 Ah EB 1212S 12 V 1 2 Ah EB 7B 7 2 V 2 0 Ah EB 1412S 14 4V 1 2 Ah EB914S 9 6V 1 4 Ah EB 7S 7 2V 1 3 Ah FEB 9S 9 6 V 1 2 Ah EB 9S 9 6 V 1 3 Ah FEB 12S 12 V 1 4 Ah EB 12S 1
9. arging an EB 1830X battery confirm that the red pilot lamp flashes at 1 second intervals approx 45 minutes from commencing charging 2 Measure the insulation resistance and conduct a dielectric strength test Insulation resistance 10 M Q or more between the plug blade of cord and the name plate or case fastening screws with a DC 500 V megohm tester Dielectric strength test a Between the plug blade of cord and the charging terminal blade b Between the plug blade of cord and the name plate or fastening screws on the case Based on the voltage listed on the Name Plate dielectric strength test should be conducted Voltage on the name plate Test voltage 120V AC 1 240 V 1 minute 220 V to 240 V AC 3 750 V 1 minute CAUTION Without fail insulation resistance must be measured between the plug blade of the cord and the name plate or the fastening screws and dielectric strength test must be conducted between the plug blade of the cord and the charging terminal blade or between the plug blade of the cord and the name plate or the fastening screws on the case Under no circumstances should testing be conducted between both blades of the plug or both blades of the charging terminal which may cause burn out of the charger 14 10 TROUBLESHOOTING GUIDE 10 1 Troubleshooting Based on Pilot Lamp Indications Phenomenon Typical causes Check procedures Pilot lamp fails to light or flash 1 Fa
10. atteries 55 C Li ion batteries 55 C and the ambient temperature is small 11 and the upper limit of the chargeable battery temperature Q6 What is the relationship between the chargeable battery temperature range when starting charging A6 The relationship is indicated in the following tables Chargeable battery temperature range when starting charging Charger Ni Cd baitery Ni MH battery SUPER Ni MH battery Li ion battery UC 14YFA 5 C to 55 C 0 C to 45 C 0 C to 45 C UC 24YFA 5 C to 55 C 0 C to 45 C 0 C to 45 C UC 24YC 5 C to 55 C 0 C to 45 C 0 C to 45 C UC 14YP2 5 C to 60 C 0 C to 45 C 0 C to 45 C va maala 5 C to 55 C 0 C to 45 C 0 C to 45 C 0 C to 45 C Upper limit of the chargeable battery temperature Charger Ni Cd battery Ni MH battery SUPER Ni MH battery Li ion battery UC 14YFA 60 C 55 C 55 C UC 24YFA 60 C 55 C 55 C UC 24YC 60 C 55 C 55 C UC 14YF2 60 C 55 C 55 C pg 60 C 55 C 55 C 550 Charging is automatically stopped when the AV system or the dT dt system detects completion of recharging even if the battery temperature does not reach the above limit 12 8 GENERAL PRECAUTIONS 8 1 Models UC 18YRL and UC 18YFL 1 The outer frame consists of case A and case B Inside the frame there is the printed circuit board 2 The pri
11. atteries battery dT dt charging method Method C g UC 18YRL E gt UC 18YFL 5 Charging time The descending voltage AV of the battery in the final stage of charging is detected and charging is automatically suspended AV charging method 10 Q2 Why was the AV microcomputer control system adopted for the Models UC 18YRL and UC 18YFL A2 If charging is continued after the battery has been fully charged it will cause a large amount of oxygen gas Oz to be generated in a short period of time as shown below This proportionately accelerates degradation of the plates The AV microcomputer control system was adopted for the Model UC 18YRL and UC 18YFL chargers in order to stop charging immediately before the battery is fully charged thereby avoiding the generation of oxygen gas This charging method applies no stress to the batteries Up to full charge Charging Oxygen gas is generated Enters overcharge state and proceeds almost without when full charge is reached begins gas degradation with the deviation Anode is fully charged cathode Charged portion Uncharged portion Plates Q3 What is the difference between the AV microcomputer control system and the dT dt system A3 Both systems cut off charging at almost the same point before the battery becomes fully charged The AV microcomputer control system detects a sudden voltage change which occurs just
12. en connected Are the connection terminals of the charger or the battery dirty deformed or otherwise abnormal YES Remove dirt or correct abnormality Check with tester Is the resistance between S and terminals 2 KQ to 100 RQ Replace the battery Replace the fuse Is the fuse on secondary side blown Faulty internal circuits Replace PCB 16 3 Trouble mode C Pilot lamp remains green red fails to light after battery has been connected Is ambient temperature NO Conduct charging within within designated range between 0 C and 40 C Is the battery very NES designated temperature range 0 C to 40 C Allow battery to cool prior to hot NO Are the connection terminals of the charger YES charging For the Ni Cd batteries charging cannot be accomplished if battery temperature is above 55 C For the H type batteries charging cannot be accomplished if battery temperature is above 50 C Clean or repair deformed or the battery dirty or deformed Is the resistance NO terminals between S and terminals 2K Q to 100 K QA YES y Faulty internal circuits y d Replace PCB 17 Replace battery 4 Trouble mode D Pilot lamp flickers red indicating abnormality
13. f charging Note 2 The voltage of the battery increases during charging and begins to fall when further charging is not possible The AV system detects the point where the voltage begins to fall and suspends charging to protect the battery from overcharging Note 3 The temperature rise during charging of a Ni MH or SUPER Ni MH battery is higher than a Ni Cd battery and a sudden temperature rise occurs just before the battery is fully charged The dT dt system detects the point where the temperature rises suddenly and suspends charging to minimize the temperature rise Note 4 As shown in Fig 7 the pressure of gas generated after a battery has become fully charged rises rapidly to cause high temperature and high gas pressure that degrade the effectiveness of the battery If charging is allowed to continue the pressure of the gas will activate the safety valve in the battery and the electrolyte will begin leaking 4 1 5 Easy to read visual display of charging status through constant lighting or flashing of red and green pilot lamps Pilot lamp indication Charge Before Blinks 0 5 sec ON 0 5 sec OFF status charging Red a a a lamp Red During Lights es ON continuously charging Red Charging Blinks 0 5 sec ON 0 5 sec OFF completed Red pe Battery or charger is faulty Charging Flickers 0 1 sec ON 0 1 sec OFF impossible Red BEEP eee Battery is overheated Unable
14. ing Ni Cd Ni MH SUPER nickel metal hydride SUPER Ni MH and lithium ion Li ion batteries 4 1 2 Recharging discharging cycles of battery ambient temperature range between 10 C and 30 C Ni Cd battery about 1 000 times SUPER Ni NH about 1 500 times e Ni MH battery about 500 times Li ion about 1 500 times Recharging discharging cycles of Ni Cd Ni MH and SUPER Ni MH batteries can be dramatically increased by stopping recharging just before the overcharging range by means of the AV system or the dT dt system Refer to 4 1 4 for detail When recharging a lithium ion battery the Model UC 18YRL UC 18YFL can detect the decrease in charging current stop current and stop recharging automatically 4 1 3 Capable of recharging batteries with internal temperatures as high as 60 C Each nickel cadmium Ni Cd battery shown in Figs 2 and 3 incorporates a thermistor The Models UC 18YRL and UC 18YFL can continue recharging these batteries until the battery temperature reaches 60 C Note 1 Wiring diagrams for batteries are shown below The thermistor is an element to detect the battery temperature The 95 C thermal protector incorporated in each 14 4 V and 18 V battery interrupts the recharging circuit when the battery temperature reaches 95 C The discriminating resistor is incorporated to distinguish Ni Cd batteries from other batteries Because the nickel metal hydride Ni MH SUPER nickel metal hydride SUPER
15. mperature is small 4 Do not use the charger for successive charging In very hot locations if two or more batteries are charged successively the temperature of the charger will rise excessively and might cause the charger to fail Instruct the customer to wait at least 5 minutes before commencing next charging Particular care is necessary in summer or tropical countries when the power source voltage is low 5 Do not insert foreign objects into the air vent on the charger The charger case is equipped with air vents to protect the internal electronic components from overheating Caution the customer not to allow foreign materials such as metallic or inflammable objects to be dropped or inserted into the air vents This could cause electrical shock fire or other serious hazards 6 Do not attempt to disassemble the charger Incorrect parts replacement and or wiring will cause malfunctions which could result in fire or other hazards Instruct the customer to bring the charger to an authorized service center in the event repair or replacement is necessary 6 2 Extra Precautions in Sales Promotion The following points must be given during sales promotion 6 2 1 Charging may not be possible when the battery temperature is high Charging may not be possible if the temperature of the battery is high after it has been exposed to direct sunlight for a long time or immediately after it has been used The customer should be advised in s
16. n AV system Battery temperature detection dT dt system for Ni MH and SUPER Ni MH batteries 2 Battery surface temperature detection thermistor 3 120 minute timer 4 Stop current detection Li ion batteries Charging voltage 7 2 V to 18 V Charging current 3 3 A Charging time Approx 45 minutes for 3 0 Ah Product weight 0 6 kg Operating ambient temperature range O C to 40 C 5 2 Comparisons with Similar Products HITACHI UC 18YRL UC 18YFL UC 24YFA ma 45 70 Charging time min 3 0 Ah 3 0 Ah Charging voltage V 7 2 to 18 7 2 to 24 Charging current A 3 3 2 5 Power input W 95 90 Operating ambient C 0 to 40 0 to 40 temperature range Chargeable battery 1 5 to 55 1 5 to 60 C i temperature range 2 5 to 50 2 Oto 45 3 Oto 50 Overcharge protection _ AV system dT dt system battery A2V system battery surface dT dt system surface temperature detection timer system temperature detection timer stop current detection External dimensions length x width x height mm 226 x 110 x 75 226 x 110x 75 Weight kg 0 6 1 3 Ibs 0 6 1 3 Ibs 1 Chargeable Ni Cd battery temperature range 2 Chargeable Ni MH SUPER Ni MH battery temperature range 3 Chargeable Li ion battery temperature range 6 PRECAUTIONS IN SALES PROMOTION 6 1 Safety Instructions In the interest of promoting the safest and most efficient
17. nted circuit board consists of the high frequency power transformer microcomputer and other electronic devices to permit rapid charging and to protect against overcharging Case A Terminal Case B Printed circuit board Case A Terminal AL 7 FN Ti oi Qua AS dre re RSA SSS e 8 2 Pilot Lamp Indications Refer to 4 1 5 13 9 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The Bold numbers in the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model UC 18YRL 9 1 Disassembly 1 Remove the four Tapping Screws W Flange D3 x 20 10 and take off Case A 3 The Printed Circuit Board Ass y 8 and the Cord 4 can then be taken out in an assembled body 2 To separate the Print Circuit Board Ass y 8 and the Cord 4 melt the soldered portions with a soldering iron NOTE Ideally the soldered portions should be freed with a solder absorber If a soldering iron must be used use one with a rated power of 35 W 9 2 Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse however special attention should be given to ensure that lamps cord armor and charging terminals are properly installed in their prescribed grooves 9 3 Confirmation after Reassembly 1 Confirm the following after reassembly The red pilot lamp on the charger lights up when charging is started When ch
18. on Li ion batteries e Ni Cd about 1 000 times e Ni MH about 500 times Recharging discharging cycles of battery ambient temperature range between 10 C and 30 C SUPER Ni MH about 1 500 times Li ion about 1 500 times Capable of recharging batteries with internal temperatures as high as 60 C nickel cadmium Ni Cd batteries General purpose charger capable of recharging 7 2 V to 18 V batteries EB 912S EB 9S EB 914S EB 914 EB 1212S EB 14128 EB 7128 FEB 9S EB 1214S EB 14148 EB7S EB9B EB 12s EB 1214L Ep 1414 EB714S i FEB 125 EB 1220BL EB 148 FEB7S EB 12B Ep 1994 FEB7 EB 1424 EB 933X EB 1230H 3 way overcharging protection systems for longer battery and charger life Fig 1 22390 ER 12267 EB 1230HL EB 1426H EB 1230X EB 1430H EB 1233X EB 1430X EB 1433X EB 1814SL B 1820L EB 1812S EB 1824L EB 18B EB 1826HL EBL 1430 EB 1820 EB 1830HL EB 1830H EB 1830X EB 1833X Easy to read visual display of charging status through constant lighting or flashing of red and green pilot lamps 4 1 Selling Point Descriptions 4 1 1 Capable of handling both nickel cadmium Ni Cd nickel metal hydride Ni MH SUPER nickel metal hydride SUPER Ni MH and litium ion Li ion batteries Thanks to the application of HITACHI s microcomputer and electronic circuit control technology the Model UC 18YRL UC 18YFL is capable of handl
19. to charge lamp Charging will commence Green when the battery is cooled NOTE The Model UC 18YRL cools the overheated baitery by the cooling fan during the standby Overheat Overheat standby Lights Stays ON continuously Green mode O Rechargeable battery temperature range The rechargeable battery temperature ranges are shown in the table below Overheated batteries should be cooled to the specified temperature before recharging Rechargeable batteries Rechargeable battery temperature range EB712S EB7S EB714S FEB7S EB7B EB912S EB9S EB914S EB914 FEB9S EB9B EB924 EB1212S EB12S EB1214S EB1214L FEB12S 23 F to 131 F 5 C to 55 C EB12B EB1220BL EB1224 EB1412S EB1414S EB1414 EB14B EB1424 EB1812S EB1814SL EB18B EB1820 EB1820L EB1824L EB926H EB930H EB933X EB1226H EB1230H EB1230HL EB1230X EB1233X EB1426H EB1430H EB1430X EB1433X EB1826HL EB1830H EB1830HL EB1830X EB1833X 23 F to 122 F 5 C to 50 C EBL1430 EBM1830 32 F to 122 F 0 C to 50 C 5 SPECIFICATIONS 5 1 Specifications Item Descriptions Power source AC single phase 50 Hz or 60 Hz Power input 95 W Charging system e Constant current charge with feedback control e Constant current and voltage control Li ion batteries Overcharging protection system 1 Battery voltage detectio
20. uch a case to place the battery in a shaded area with good airflow and allow sufficient cooling before recharging This phenomenon is common to all existing batteries and chargers which employ temperature sensitive overcharge protection devices The cooling time required before recharging varies from a few minutes to about 30 minutes depending on the load duration of use and ambient temperature 6 2 2 Inserting a battery into a charger in reverse direction can cause serious damage to the battery and the charger Inadvertently inserting a battery into the charger in the reverse direction will not only make it impossible to charge the battery but also decrease the service life of the battery and cause damage to the charger Customers should be advised to correctly insert the battery into the charger 7 QUESTIONS AND ANSWERS ON MODELS UC 18YRL AND UC 18YFL Q1 What are typical charging methods A1 The most recent electronic charging methods are outlined below 95 o Method A E 3 Stop current Method B 8 2 2 detection 2 UC 18YRL 55 a UC 14YFA 5 urren UC 18YFL 55 URRA a ag UC 24YFB 5 a UC 24YC Charging time UC 18YRL Charging time The Model UC 18YRL UC 18YFL UC 18YFL Sudden temperature rise just automatically stops recharging before full charging is detected and upon detection of the stop current charging is suspended Ni MH and only when recharging a lithium ion SUPER Ni MH b
21. ulty AC cord 2 Blown fuse 3 15 A on primary side Refer to trouble mode A Red pilot lamp does not stay lit continues to flicker after battery has been connected 1 Poor connection of T or S terminal 2 Faulty battery open circuit 3 Faulty PCB Refer to trouble mode B Pilot lamp remains green red fails to light after battery has been connected 1 Poor connection of T or S terminal 2 Faulty PCB Refer to trouble mode C Pilot lamp indicates abnormality by flashing red rapidly at 0 2 second intervals 1 Battery connected in reverse direction 2 Faulty battery short circuit or open circuit 3 Faulty PCB Refer to trouble mode D 10 2 Troubleshooting and Repair Procedures 1 Trouble mode A Pilot lamp fails to light or flash Is rated voltage applied to the plug NO Apply rated voltage Check with tester Is there continuity between the blades of the AC cord plug Is there an open circuit in the AC cord Faulty internal circuit Is the fuse on the primary side blown d Replace the fuse NO YES 4 Replace PCB y YES Replace the AC cord Faulty internal circuit y C Replace PCB 15 2 Trouble mode B Red pilot lamp does not stay lit continues to flash after battery has be
22. use of the Model UC 18YRL and UC 18YFL Chargers by all of our customers it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions 6 1 1 Handling instructions Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to give pertinent advice to the customer 1 Connect the charger to an AC power outlet only Use of any other power source DC outlet fuel powered generator etc will cause the charger to overheat and burn out 2 Do not use any voltage increasing equipment transformer voltage regulator etc between the power source and the charger If the charger is used with voltage over and above that indicated on the unit it will not function properly 3 Conduct battery charging in an ambient temperature range of 0 C to 40 C If charging is attempted when the ambient temperature is below 0 C charging is not possible or overcharging occurs because the recharging control circuit does not function properly If charging is attempted when the ambient temperature is above 40 C charging is stopped before the battery is fully charged due to temperature rise during charging because the difference between the upper limit of the rechargeable battery temperature Ni Cd batteries 60 C Ni MH batteries 55 C SUPER Ni MH batteries 50 C Li ion batteries 55 C and the ambient te

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