Hitachi UC 18YFSL Service Manual
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Hitachi UC 18YFSL Service Manual

Hitachi UC 18YFSL Service Manual

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PRODUCT NAME
Hitachi Charger
UC 18YFSL
Model
CONTENTS
REPAIR GUIDE ---------------------------------------------------------------------------------------------------------------- 1
1. Precautions on disassembly and reassembly ----------------------------------------------------------- 1
TROUBLESHOOTING GUIDE --------------------------------------------------------------------------------------------- 4
1. Troubleshooting based on pilot lamp indication --------------------------------------------------------- 4
2. Troubleshooting and repair procedures ------------------------------------------------------------------- 4
STANDARD REPAIR TIME (UNIT) SCHEDULES -------------------------------------------------------------------- 8
LIST No.
UC 18YFSL: J861
Jun. 2013
Page
International Sales Division
U

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  • Page 1: Table Of Contents

    LIST No. UC 18YFSL: J861 Jun. 2013 PRODUCT NAME Hitachi Charger UC 18YFSL Model CONTENTS Page REPAIR GUIDE ---------------------------------------------------------------------------------------------------------------- 1 1. Precautions on disassembly and reassembly ----------------------------------------------------------- 1 TROUBLESHOOTING GUIDE --------------------------------------------------------------------------------------------- 4 1. Troubleshooting based on pilot lamp indication --------------------------------------------------------- 4 2.

  • Page 2: Repair Guide

    1. Precautions on disassembly and reassembly [Bold] numbers in the description below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model UC 18YFSL. Disassembly (1) Remove Case (A) [1] after removing the four Tapping Screws (W/Flange) D3 x 18 [6].

  • Page 3: Screw Tightening Torque

    Hitachi Label [7] Case (A) [1] Terminal Holder [8] Fan [2] TP Tapping Screw D3 x 8 [3] LED-Printed Circuit Board [9] TP Tapping Screw D3 x 8 [3] Air Duct [10] Cord [11] Fuse (T3.15 A/250 V) [4] Printed Circuit Board Ass'y [12]...

  • Page 4: Confirmation After Reassembly

    Confirmation after reassembly (1) Confirm the following after reassembly. The red pilot lamp on the charger lights up when charging is started. • When charging the BSL 1430 battery, confirm that the red pilot lamp flashes at one-second intervals about 45 minutes after the start of charging. (2) Measure the insulation resistance and conduct a dielectric strength test.

  • Page 5: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. Troubleshooting based on pilot lamp indication Problem Typical cause Check procedure (1) Faulty AC cord Pilot lamp fails to light or flash. Refer to trouble mode (A). (2) Blown fuse (3.15 A) on primary side Red pilot lamp does not stay lit (1) Poor connection of (T) or (LS) terminal (continues to flicker) after (2) Faulty battery (open circuit)
  • Page 6 (2) Trouble mode (B) Red pilot lamp does not stay lit (continues to flash) after battery has been connected. Are the connection terminals of the Remove dirt or correct charger or the battery dirty, deformed, abnormality. or otherwise abnormal? Check with a tester. Is the resistance between Replace the battery.
  • Page 7 (3) Trouble mode (C) Pilot lamp remains flashing (light for 1 second, off for 0.5 second) after battery has been connected. Is ambient temperature Conduct charging within the within the designated designated temperature range range (between 0°C and (between 0°C and 40°C). 40°C)? Allow battery to cool prior to Is the battery very hot?
  • Page 8 (4) Trouble mode (D) Pilot lamp indicates abnormality by flashing red rapidly at 0.2-second intervals. Is the battery properly Properly insert the battery. connected? Is there any conductive foreign matter in the hole Remove the foreign matter. where the battery is inserted? Is the battery Replace the battery.

  • Page 9: Standard Repair Time (Unit) Schedules

    11. STANDARD REPAIR TIME (UNIT) SCHEDULES STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min. Fixed Work Flow UC 18YFSL General Assembly Cord Case (A) Printed Case (B) Circuit Board Ass’y Fuse Terminal Holder LED-Printed Circuit Board Air Duct...
  • Page 10 LIST NO. J861 CHARGER 2013· 6 · 20 Model UC 18YFSL (E1)
  • Page 11 PARTS UC 18YFSL ITEM CODE NO. DESCRIPTION REMARKS USED 336-269 CASE (A) 336-272 327-174 TP TAPPING SCREW D3 X 8 332-540 FUSE (T3.15 A/250 V) 336-270 CASE (B) 326-358 TAPPING SCREW (W/FLANGE) D3 X 18 336-273 HITACHI LABEL 336-274 HITACHI LABEL...

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