Hitachi SV 12SD User Manual Download

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POWER TOOLS

TECHNICAL DATA

AND

SERVICE MANUAL

CHARGER

UC 9SD

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LIST No. F836

Nov. 1999

U

MODEL

UC 9SD

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Summary of Contents for SV 12SD

Page 1: ...POWER TOOLS TECHNICAL DATA AND SERVICE MANUAL CHARGER UC 9SD SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No F836 Nov 1999 U MODEL UC 9SD ...

Page 2: ...ring Sales Promotion 4 Service Section 7 REFERENCE MATERIAL 5 7 1 Model UC 9SD Structure 5 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 5 8 1 Disassembly 5 8 2 Reassembly 6 8 3 Confirmation after Reassembly 6 9 TROUBLESHOOTING GUIDE 7 9 1 Failure During Charging 7 10 STANDARD REPAIR TIME UNIT SCHEDULES 11 Appendix Assembly Diagram for UC 9SD 12 Notice for use Specifications and parts are subject to...

Page 3: ...It is designed to charge the Hitachi types EB 9S FEB 9 and FEB 9S rechargeable batteries 3 APPLICATIONS Charging of Hitachi 9 6 V Rechargeable Batteries Applicable Batteries EB 9S 9 6 V 1300 mAh 4 terminal FEB 9 9 6 V 1300 mAh 3 terminal FEB 9S 9 6 V 1400 mAh 4 terminal 4 SELLING POINTS Thermostat protects overcharging Red pilot lamp shows easy confirmation of charging state EB 9S FEB 9 FEB 9S ...

Page 4: ...minutes FEB 9S 1 2 kg 2 6 lbs 10 C 40 C 50 F 104 F Power supply Input capacity Voltage drop method Rectifying method Overcharging protection system Charging indication method Charging voltage Charging current Charging time at 20 C at 68 F Product weight Operating temperature 5 2 Comparisons with Similar Product Model Applicable ambient temperature range HITACHI UC 9SD Charging time Charging curren...

Page 5: ...t a temperature range of 10 C 40 C 50 F 104 F The Charger and storage batteries each contain a special charging circuit Be sure to instruct the customer to charge at a temperature range of 10 C 40 C 50 F 104 F In temperatures below 10 C 50 F even if the battery is fully charged the thermostat will not function causing the battery to overcharge dangerously In temperatures over 40 C 104 F batteries ...

Page 6: ...ries from a few minutes to about 30 minutes depending on the length of time the battery was used and the ambient temperature 6 2 2 If the Ambient Temperature or Power Supply Voltage Is Low Charging Time May Be Longer The charging time for UC 9SD is greatly influenced by the ambient temperature and input power supply voltage The relationship between input power supply voltage and charging time is s...

Page 7: ... descriptions below correspond to the item numbers in the parts list and exploded assembly diagram 8 1 Disassembly 1 Remove the four Screws Plastic Tie D4 x 20 5 and take off Case B 2 When the Transformer 9 is lifted upward the Printed Circuit Board 4 and the Cord 10 can be removed together 3 To separate the Printed Circuit Board 4 Transformer 9 and Cord 10 melt their soldered connections with a s...

Page 8: ... reassembly confirm the following items 1 Confirmation of Charging State Confirm that the Pilot Lamp on the Charger goes on Confirm that the Pilot Lamp goes off approximately 60 minutes after the start of charging when FEB 9S is charged at 20 C 68 F 2 Measure the Insulation Resistance and Conduct a Dielectric Strength Test Insulation Resistance 10 megohms or more between the plug blade of Cord and...

Page 9: ... the charging terminal blade Under no circumstances should tests be conducted between both blades of the plug or both blades of the charging terminal which may cause burnout of the Charger 9 TROUBLESHOOTING GUIDE 9 1 Failure During Charging Failure Pilot Lamp on Charger does not go on To Failure Mode A Pilot Lamp on Charger does not go off To Failure Mode B Abnormal heat is generated To Failure Mo...

Page 10: ...opriate for charging 10 C 40 C 50 F 104 F Is the battery too hot What is the voltage of the battery between the and terminals and and T terminals Battery is defective Replace battery YES NO YES NO DC 0 V Defective Charger Is there continuity between the blades of the AC Plug Is the fuse on the secondary side blown Is there a disconnected lead wire on the secondary side Printed Circuit Board is def...

Page 11: ...NO NO Is the thermostat in the warm battery open Charge at appropriate temperature 10 C 40 C 50 F 104 F Check continuity between and T terminals of the warm battery with a tester Defective Charger Disconnect AC Plug from power supply and disassemble Charger Are there any defective wiring connections Replace Printed Circuit Board Printed Circuit Board is defective YES NO NO Battery is defective Rep...

Page 12: ... heat generated by the battery or the charger Printed Circuit Board is defective Is the heat generated by the Transformer Charger Replace Printed Circuit Board Battery Warming of the battery in the final stage of charging is normal To Failure Mode B Replace battery Replace Transformer 7 2 V batteries cannot be charged YES YES YES NO NO NO ...

Page 13: ... 11 10 STANDARD REPAIR TIME UNIT SCHEDULES MODEL 10 20 30 40 Fixed Variable UC 9SD Work Flow Light Bar Fuse 6 3 A 60 min 50 Case A B Set Printed Circuit Board Transformer Cord General Assembly ...

Page 14: ... 12 Assembly Diagram for UC 9SD ...

Page 15: ... 1 FOR AUS 3 314 972 FUSE 6 3A 250V 1 4 318 256 PRINTED CIRCUIT BOARD 1 5 994 806 SCREW PLASTIC TIE D4X20 4 6 NAME PLATE 1 7 HITACHI LABEL 1 8 CAUTION LABEL 1 9 318 270 TRANSFORMER 120V 1 9 318 271 TRANSFORMER 220V 1 9 318 272 TRANSFORMER 230V 1 9 318 273 TRANSFORMER 240V 1 10 318 262 CORD 1 10 318 259 CORD 1 FOR USA CAN 10 318 260 CORD 1 FOR NZL AUS 10 318 261 CORD 1 FOR GBR KUW ...

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