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9. TROUBLESHOOTING GUIDE

9-1. Troubleshooting Based on Pilot Lamp Indications

Phenomenon

Suspected causes

Check procedure

Pilot lamp fails to light after
battery connection

(1) Faulty AC cord
(2) Blown fuse (3.15 A)
(3) High battery temperature
(4) Poor terminal connection
(5) Faulty battery
(6) Faulty PCB

Refer to trouble mode

9-2. Troubleshooting and Repair Procedures

(1)Trouble mode

Replace AC cord

Pilot lamp fails to light or flash

Apply rated voltage

Replace fuse

Open circuit in

AC cord?

Blown fuse?

Any continuity

between AC cord plug

blades?

Rated

voltage applied

to plug ?

YES

Check with tester

Содержание UC 18YK

Страница 1: ...CHARGER UC 18YK UC 18YK FEB 2010 LIST No H852 MODEL U ...

Страница 2: ...fety Instructions 4 6 2 Extra Precautions on Sales Promotion 5 7 GENERAL PRECAUTIONS 6 7 1 Structure 6 8 PRECAUTIONS ON DISASSEMBLY AND REASSEMBLY 7 8 1 Disassembly 7 8 2 Reassembly 7 8 3 Confirmation after Reassembly 7 9 TROUBLESHOOTING GUIDE 8 9 1 Troubleshooting Based on Pilot Lamp Indications 8 9 2 Troubleshooting and Repair Procedures 8 10 STANDARD REPAIR TIME UNIT SCHEDULES 10 Assembly Diagr...

Страница 3: ...V 1 2 Ah EB 1212S 12 V 1 2 Ah EB 1412S 14 4 V 1 2 Ah EB 7S 7 2 V 1 3 Ah EB 9S 9 6 V 1 3 Ah EB 12S 12 V 1 3 Ah EB 914 9 6 V 1 4 Ah EB 1414 14 4 V 1 4 Ah EB 9B 9 6 V 2 0 Ah EB 12B 12 V 2 0 Ah EB 14B 14 4 V 2 0 Ah EB 1220BL 12 V 2 0 Ah EB 924 9 6 V 2 4 Ah EB 1224 12 V 2 4 Ah EB 1424 14 4 V 2 4 Ah EB 714S 7 2 V 1 4 Ah FEB 7S 7 2 V 1 2 Ah EB 7B 7 2 V 2 0 Ah EB 914S 9 6 V 1 4 Ah FEB 9S 9 6 V 1 2 Ah FEB ...

Страница 4: ...12 EB 1412S EB 1414S EB 1414 EB 14B EB 1424 EB 1812S EB 18B EB 1820 BCC 1812 EB 1814SL EB 1820L EB 1824L General purpose charger capable of recharging 7 2 V to 18 V batteries Two way overcharge protection system with thermostat and thermistor Red pilot lamp indicates confirmed charging state Battery recharging discharging cycles Ambient temperature range from 10 C to 30 C Ni Cd about 300 times ...

Страница 5: ...g 0 8 lbs Operating ambient temperature range 0 C to 40 C 32 F to 104 F 5 2 Comparisons with Similar Products HITACHI UC 18YK UC 18YG Charging time min 50 1 2 to 1 4 Ah 30 1 2 to 1 4 Ah Charging voltage V 7 2 to 18 7 2 to 18 Charging current A 1 5 2 6 Power input W 50 70 Operating ambient temperature range C 0 to 40 0 to 40 Chargeable battery temperature range C 0 to 40 0 to 40 Overcharge protecti...

Страница 6: ...t charging a battery at ambient temperature above 40 C will result in charging being stopped before fully charging the battery due to a rise in temperature during charging given the small difference between the upper limit rechargeable battery temperature of 40 C and ambient temperature 4 Do not use the charger for successive charging Note that charging two or more batteries successively in a very...

Страница 7: ...down before recharging This phenomenon is common to all existing batteries and chargers that employ temperature sensitive overcharge protection devices The cooling time necessary 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 inversely into the charger can seriously damage the battery and charg...

Страница 8: ...Case B There is a printed circuit board inside the frame 2 The printed circuit board consists of the high frequency power transformer microcomputer and other electronic devices to enable rapid charging and protect against overcharging Case B Terminal A Case A Printed circuit board ...

Страница 9: ... an EB 1820L battery confirm that the pilot lamp goes off in about 80 minutes after starting charging operation 2 Measure the insulation resistance and conduct a dielectric strength test Insulation resistance 10 MΩ or more between the plug blade of the cord and the Name Plate or case fastening screws using a DC 500 V megohm tester Dielectric strength test a Between one plug blade of the cord and o...

Страница 10: ...15 A 3 High battery temperature 4 Poor terminal connection 5 Faulty battery 6 Faulty PCB Refer to trouble mode 9 2 Troubleshooting and Repair Procedures 1 Trouble mode Replace AC cord Pilot lamp fails to light or flash Apply rated voltage Replace fuse Open circuit in AC cord Blown fuse Any continuity between AC cord plug blades Rated voltage applied to plug A YES NO YES YES NO NO NO YES Check with...

Страница 11: ...deformed Resistance between S and terminals 2 kΩ to 100 kΩ Faulty internal circuits Replace PCB Replace battery Clean or repair deformed terminals Allow battery to cool before charging it Conduct charging within designated temperature range Charging disabled at battery temperature above 40 C NO YES NO YES YES NO NO YES 0 C to 40 C ...

Страница 12: ... 10 10 STANDARD REPAIR TIME UNIT SCHEDULES MODEL Variable Fixed 10 20 30 40 50 60 min Work Flow UC 18YK General Assembly Case A Case B Fuse T3 15A 250V Cord Printed Circuit Board Ass y ...

Страница 13: ...Model UC 18YK CHARGER LIST NO H852 E1 2010㨯1㨯15 䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃䎃 1 3 6 8 2 7 4 5 ...

Страница 14: ...CORD 1 FOR AUS 3 332 540 FUSE T3 15A 250V 1 4 332 477 PRINTED CIRCUIT BOARD ASS Y 120V 1 INCLUD 3 5 4 332 478 PRINTED CIRCUIT BOARD ASS Y 230V 240V 1 INCLUD 3 5 5 080 531 TERMINAL A 5 6 324 733 CASE B 1 7 326 358 TAPPING SCREW W FLANGE D3 X 18 4 8 NAME PLATE 1 2 Printed in Japan 01 10 100115N ALTERNATIVE PARTS ITEM NO NO USED CODE NO ...

Страница 15: ......

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