Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Rotary Hammer
  5. EY7840
  6. Service manual

Panasonic EY7840 Service Manual

Cordless rotary hammer drill & driver
Hide thumbs Also See for EY7840:

Advertisement

Quick Links

TABLE OF CONTENTS

1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
5 Wiring Connection Diagram ---------------------------------12
6 Schematic Diagram ---------------------------------------------13
Cordless Rotary Hammer Drill & Driver
Model No.
Europe and Oceania
PAGE
© 2008 Matsushita Electric Works, Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.
Order Number PTD0803X31CE
EY7840
PAGE

Advertisement

loading

Related Manuals for Panasonic EY7840

Summary of Contents for Panasonic EY7840

  • Page 1: Table Of Contents

    Order Number PTD0803X31CE Cordless Rotary Hammer Drill & Driver EY7840 Model No. Europe and Oceania TABLE OF CONTENTS PAGE PAGE 1 Warning -------------------------------------------------------------- 2 2 Specifications ----------------------------------------------------- 2 3 Troubleshooting Guide ----------------------------------------- 3 4 Disassembly and Assembly Instructions ---------------- 7...

  • Page 2: Warning

    1 Warning Caution: • Pb free solder has a higher melting point that standard solder; Typicall 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.)

  • Page 7: Disassembly And Assembly Instructions

    4 Disassembly and Assembly Instructions 4.1. How to Disassemble the Main Unit. Ref. No. 1A Procedure 1A Removal of the chuck handle. 1. Set the hammering/drilling switching lever to the position 2. Pluck the chuck cover depressing the chuck handle. 3.
  • Page 8 Procedure 1A → 1B → 1C Ref. No. 1C Removal of the switch. 1. Loosen two screws to remove the lead wires from motor assembly. 2. Take out the switch from the housing. 3. Take out the LED cover. For assembling NOTE: Make sure not to break or deform the terminals.
  • Page 9 Procedure 1A → 1B → 1C → 1D → 1E Ref. No. 1E Removal of the power shaft assembly. 1. Remove the piston applying power spring. 2. Take out the power shaft assembly. 3. Remove the snap ring. 4. Slide the jig (plate) into between the washer and the gear case and hold it by a vise.
  • Page 10 4.2. How to Reassemble the Main Unit. Ref. No. 2A Procedure 2A Assembly of gear case assembly. 1. Set the jig (bearing cap) into the clutch case and hold it with a vise in order to take out the bearing. 2.
  • Page 11 Procedure 2A → 2B Ref. No. 2B Assembly of driving block into housing. 1. Set the H/D handle to HAMMER mode. 2. Insert the gear case assembly into the housing. 3. Connect the switch assembly with motor lead wires.

  • Page 12: Wiring Connection Diagram

    5 Wiring Connection Diagram...

  • Page 13: Schematic Diagram

    6 Schematic Diagram...

  • Page 14: Exploded View And Replacement Parts List

    7 Exploded View and Replacement Parts List Model No. : EY7840 Exploded View...
  • Page 15 Model No. : EY7840 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks WEY7840K3079 HOUSING AB SET 1 (for EUROPE) WEY7840K3070 HOUSING AB SET 1 (for OCEANIA) WEY6813H3116 CHUCK COVER WEY6803K3127 CHUCK HANDLE WEY6813L0426 BALL GUIDE WEY6813L0436...
  • Page 16 Model No. : EY7840 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks WEY7840K3137 TRIGGER COVER WEY7840L1467 MOTOR ROTOR ASSEMBLY WEY7840L1187 MOTOR STATOR ASSEMBLY WEY7840L2307 MOTOR BRUSH ASSEMBLY WEY6803L2337 LED COVER WEY7840L2337 LED LIGHT WEY7840L2117 MAIN PCB ASSEMBLY...