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Hitachi UC 18SD Technical Data And Service Manual

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MODEL
UC 18SD
Hitachi
Power Tools
TECHNICAL DATA
CHARGER
AND
UC 18SD
SERVICE MANUAL
U
LIST No. F885
Jul. 2003
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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  Summary of Contents for Hitachi UC 18SD

  • Page 1 MODEL UC 18SD Hitachi Power Tools TECHNICAL DATA CHARGER UC 18SD SERVICE MANUAL LIST No. F885 Jul. 2003 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2: Table Of Contents

    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 ..............10 Assembly Diagram for UC 18SD ......................11...
  • Page 3: Product Name

    Hitachi Charger, Model UC 18SD 2. MARKETING OBJECTIVE The Model UC 18SD is an inexpensive 18 V-only charger that has been developed to promote sales of our low- cost cordless tools. It is designed to charge the Hitachi type EB 1812S rechargeable battery.
  • Page 4: Specifications

    10 ˚C --- 40 ˚C (50 ˚F --- 104 ˚F) 5-2. Comparisons with Similar Product HITACHI HITACHI Model Unit UC 14SD UC 18SD Charging time min. 60 (EB 1414 storage battery) 60 (EB 1812S storage battery) Charging voltage 14.4 Charging current 1.55...
  • Page 5: Precautions In Sales Promotion

    Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to give pertinent advice to the customer. (1) Never charge Hitachi 7.2 V, 9.6 V, 12 V, 14.4 V and 24 V rechargeable batteries with the Model UC 18SD Charger: The UC 18SD is a charger to be used exclusively for the EB 1812S battery.
  • Page 6: Points Requiring Special Attention During Sales Promotion

    This condition is common to all existing chargers (both Hitachi's and competitor's models) which employ temperature sensitive devices to terminate charging. The cooling period required before charging varies from a few minutes to about 30 minutes, depending on the length of time the battery was used and the ambient temperature.
  • Page 7: Reference Material

    7. REFERENCE MATERIAL 7-1. Structure (1) The outer casing consists of Case (A) and Case (B). A light bar for the Pilot Lamp is built into Case (A). (2) Electronic components which provide rapid charging and prevent overcharging are mounted on the Printed Circuit Board.
  • Page 8: Reassembly

    8-2. Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse. However, particular attention should be given to the following points. (1) Solder the lead wires of the Cord [10] after passing their stripped end portions through the holes of the Printed Circuit Board Ass'y [4] and bending them securely.
  • Page 9: Troubleshooting Guide

    9. TROUBLESHOOTING GUIDE 9-1. Failure During Charging Failure Pilot lamp off, charger does To Failure Mode (A) not go on. Pilot lamp on, charger does To Failure Mode (B) not go off. Abnormal heat is generated. To Failure Mode (C) (1) Failure Mode (A) steps and repair procedures Pilot Lamp on, Defective Charger...
  • Page 10 (2) Failure Mode (B) steps and repair procedures Pilot lamp on, charger does not go off. Is the temperature range Charge at appropriate appropriate for charging? temperature. 10 C --- 40 C (50 F --- 104 F) 10 C --- 40 C (50 F --- 104 F) Is the resistance between...
  • Page 11 (3) Failure Mode (C) steps and repair procedures Abnormal heat is generated. Does the pilot lamp go off To Failure Mode (B) after completion of charging? Is the heat Battery generated by Replace battery. the battery or Warming of the battery in the the charger? final stage of charging is normal.
  • Page 12: Standard Repair Time (Unit) Schedules

    10. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow UC 18SD General Assembly Light Bar Case (A).(B) Fuse (6.3 A) Printed Circuit Board Ass'y Transformer 120V Cord --- 10 ---...
  • Page 13: Assembly Diagram For Uc 18Sd

    Hitachi Power Tools LIST NO. F885 ELECTRIC TOOL PARTS LIST CHARGER 2003 • • Model UC 18SD (E1) --- 11 ---...
  • Page 14 PARTS UC 18SD ITEM CODE NO. DESCRIPTION REMARKS USED 318-258 LIGHT BAR 322-187 CASE (A).(B) SET 320-682 FUSE (6.3A/250V) 322-189 PRINTED CIRCUIT BOARD ASS’Y INCLUD. 3 994-806 SCREW (PLASTIC TIE) D4X20 NAME PLATE CAUTION LABEL HITACHI LABEL 322-188 TRANSFORMER 120V...