Hitachi DV 18DD Service Manual
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Hitachi DV 18DD Service Manual

Hitachi DV 18DD Service Manual

18 v cordless impact driver drill
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Power Tools Service Manual
PRODUCT NAME
18 V Cordless Impact Driver Drill
DV 18DD, DV 18DDX
Models
CONTENTS
REPAIR GUIDE ----------------------------------------------------------------------------------------------------------------- 1
1. Precautions on disassembly and reassembly ------------------------------------------------------------ 1
• Disassembly ---------------------------------------------------------------------------------------------------- 1
• Reassembly ---------------------------------------------------------------------------------------------------- 2
• Checking after reassembly --------------------------------------------------------------------------------- 5
• Tightening torque ---------------------------------------------------------------------------------------------- 5
• No-load current ------------------------------------------------------------------------------------------------ 5
• Wiring diagram------------------------------------------------------------------------------------------------- 6
2. Precautions on disassembly and reassembly of the charger ----------------------------------------- 6
CONFIDENTIAL
*1
*2
*1: "Cordless Combi Drill" for Europe
*2: Designed for operating in UK only
DV 18DD
Overseas Sales Management Dept.
Jul. 2020
D
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Summary of Contents for Hitachi DV 18DD

  • Page 1: Table Of Contents

    Power Tools Service Manual CONFIDENTIAL Jul. 2020 PRODUCT NAME 18 V Cordless Impact Driver Drill DV 18DD, DV 18DDX Models *1: “Cordless Combi Drill” for Europe *2: Designed for operating in UK only CONTENTS Page REPAIR GUIDE ----------------------------------------------------------------------------------------------------------------- 1 1. Precautions on disassembly and reassembly ------------------------------------------------------------ 1 •...

  • Page 2: Repair Guide

    1. Precautions on disassembly and reassembly [Bold] numbers in the description below correspond to the item numbers in the parts lists and exploded assembly diagrams for the Models DV 18DD and DV 18DDX. Disassembly 1. Removal of the drill chuck (1) For removal of the Drill Chuck [2] from the drill body, first use a vise to clamp the drill body, and then go to steps (a) and (b) below.
  • Page 3 2. Disassembly of housing (A).(B) set (1) Remove the eight Tapping Screws (W/Flange) D3 x 16 [4] from the drill body, hold Housing (A).(B) Set [11] at its battery mount portion, and then gently open Housing (A).(B) Set [11]. (2) Remove housing (B) and remove such built-in parts as modules and units. Lift up Gear Box (C) [3] to remove the built-in parts together from housing (A).

  • Page 4: Reassembly

    Reassembly Generally, perform reassembly by reversing the disassembly procedure. However, special attention should be given to the following items. 1. Reassembly of the power supply unit and its vicinity • Reassembly of the power supply unit and its vicinity Fit the protrusion of the direction selector lever of the switch into the hole of the Pushing Button [7].
  • Page 5 2. Reassembly of housing (A).(B) set (1) Mount the reassembled power supply unit and Gear Box (C) [3] in housing (A). (2) Check that the protrusion of the direction selector lever of the DC-speed control switch is correctly put in the hole of the Pushing Button [7].

  • Page 6: Checking After Reassembly

    Checking after reassembly After reassembly, install the battery in the tool body and check for operation of each component as follows. (1) Checking for lighting of the LED light Make sure the LED light turns on while pulling the switch and automatically turns off in about ten seconds when you release your finger from the switch.

  • Page 7: Wiring Diagram

    Wiring diagram Mode-switching dial • Wiring diagram Clutch dial Insert the internal wire into the internal wire threading groove. [10] • Connecting diagram LD (green) - (black) Battery terminal + (red) Controller DC-speed control switch 2. Precautions on disassembly and reassembly of the charger Refer to the Service Manual for precautions on disassembly and reassembly of the charger Models UC 18YFSL and UC 18YKSL.
  • Page 8 M O D E L DV18DD Rev.1...
  • Page 9 ITEM CODE DESCRIPTION REMARKS USED 337426 LEFT-HAND HEXALOBULAR M5 376359 DRILL CHUCK 13TLRA-N 374385 GEAR BOX (C) 313687 TAPPING SCREW (W/FLANGE) D3 X 16 (BLACK) NAME PLATE 376360 WIRING ASS'Y 374399 PUSHING BUTTON 376362 DC-SPEED CONTROL SWITCH 374382 SHIFT KNOB 376361 BATTERY TERMINAL 376357 HOUSING (A).(B) SET 333352 BATTERY BSL 1815 (EUROPE)

This manual is also suitable for:

Dv 18ddxDv 18dd-wpz

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