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Panasonic EY7420 Service Manual

Panasonic EY7420 Service Manual

Cordless drill & driver

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TABLE OF CONTENTS

1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
5 Wiring Connection Diagram ---------------------------------14
6 Schematic Diagram ---------------------------------------------14
Model No.
Europe
PAGE
© Panasonic Eco Solutions Power Tools Co., Ltd.
2013. All rights reserved. Unauthorized copying and
distribution is a violation of law.
Order Number PTD1302X20CE
Cordless Drill & Driver
EY7420
PAGE

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Summary of Contents for Panasonic EY7420

  • Page 1: Table Of Contents

    4 Disassembly and Assembly Instructions ---------------- 7 5 Wiring Connection Diagram ---------------------------------14 6 Schematic Diagram ---------------------------------------------14 7 Exploded View and Replacement Parts List -----------15 © Panasonic Eco Solutions Power Tools Co., Ltd. 2013. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2: Warning

    1 Warning Caution: • Pb free solder has a higher melting point that standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a soldering iron with temperature control and adjust it to 750 ± 20°F (400 ± 10°C). In case of using high temperature solder- ing iron, please be careful not to heat too long.
  • Page 3: Troubleshooting Guide

    3 Troubleshooting Guide (Refer to Wiring Connection Diagram)
  • Page 6 3.1. Trial Operation (after checking Troubleshooting Guide.) 3.1.1. ASSEMBLY 1. Confirm if there is NO gap between Housing A and B by pinching the lead wires. 2. Confirm all screws are tightened firmly. 3. There should be no metallic sound and abnormal sound. 4.
  • Page 7: Disassembly And Assembly Instructions

    4 Disassembly and Assembly Instructions Ref. No. 1A Procedure 1A Removal of the Housing. 1. Remove 7 housing screws. 2. Remove 7 screws. 3. Remove ring plate and ring. 4. Remove click spring on both housing A and B. 5. Loosen a nut.
  • Page 8 Procedure 1A → 2A Ref. No. 2A Removal of Switch and Driving block. 1. Take out the switch assembly and the driving block. 2. Separate the motor from the gear box block by twisting the motor to unlock tabs. Procedure 1A → 2A → 2B Ref.
  • Page 9 Procedure 1A → 2A → 2B → 2C Ref. No. 2C Removal of Battery terminal block. 1. Take out the connector from the battery terminal block with a screw driver. Procedure 1A → 2A → 2B → 2C → 2D Ref.
  • Page 10 Procedure 1A → 2A → 2B → 2C → 2D → 2E Ref. No. 2E Removal or assembly of detection PCB. (Removal) 1. Take out the clutch handle. 2. Pull out the torque detection PCB from the gear box block. (Assembly) 1.
  • Page 11 Procedure 1A → 2A → 2B → 2C → 2D → 2E → 2F Disassembly of gear box block. Ref. No. 2F 1. The internal parts of gear box block can be disassembled in order. Procedure 1A → 2A → 2B → 2C → 2D → 2E → Ref.
  • Page 12 Procedure 1A → 2A → 2B → 2C → 2D → 2E → Ref. No. 2H Check point on wiring. 2F → 2G → 2H...
  • Page 13 Procedure 1A → 2A → 2B → 2C → 2D → 2E → Ref. No. 2I Check point on assembly. 2F → 2G → 2H → 2I...
  • Page 14: Wiring Connection Diagram

    5 Wiring Connection Diagram 6 Schematic Diagram...
  • Page 15: Exploded View And Replacement Parts List

    7Exploded View and Replacement Parts List Model No. : EY7420 Exploded View...
  • Page 16 Model No. : EY7420 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks WEY7420H3078 HOUSING AB SET WEY7420L1087 GEAR BOX BLOCK WEY7420L3747 MOTOR MOUNTING PLATE WEY6225L6026 SEMS SCREW 2 (M3*5) WEY7420L0637 CLUTCH HANDLE WEY7410H3237 H/L CHANGE HANDLE...