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Panasonic EY7880 Service Manual
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Panasonic EY7880 Service Manual

Panasonic EY7880 Service Manual

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TABLE OF CONTENTS

1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
5 Wiring Connection Diagram ---------------------------------13
6 Schematic Diagram ---------------------------------------------14
Cordless Rotary Hammer
Model No.
Europe
Oceania
PAGE
© 2007 Matsushita Electric Works, Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.
Order Number PTD0709X41CE
EY7880
PAGE

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Summary of Contents for Panasonic EY7880

  • Page 1: Table Of Contents

    Order Number PTD0709X41CE Cordless Rotary Hammer EY7880 Model No. Europe Oceania TABLE OF CONTENTS PAGE PAGE 1 Warning -------------------------------------------------------------- 2 2 Specifications ----------------------------------------------------- 2 3 Troubleshooting Guide ----------------------------------------- 3 4 Disassembly and Assembly Instructions ---------------- 7 5 Wiring Connection Diagram ---------------------------------13...

  • 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. Loosen the support handle and take it out from the unit. 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. NOTE: Do not lose the nut. 2. Take out the switch from the housing. 3. Take out the LED cover. For assembling NOTE: Do not push the area where marked the arrow in order to prevent the...
  • Page 9 Procedure 1A → 1B → 1C → 1D → 1E Ref. No. 1C 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 gear case assembly. 1. Assemble the chuck spring and the chuck spring plate. 2. Insert a ball pushing down the chuck spring. 3. Inject an adhesive such as Cemedine SX720WH and wipe off to bury the gap between the gear case A and B in order to prevent the leakage of grease inside of gear box.
  • Page 12 Procedure 2A → 2B → 2C Ref. No. 2C Assembly of driving block into housing. 1. Set the H/D handle to HAMMER mode. 2. Set the H/S handle in between HIGH and SOFT model. 3. Insert the gear case assembly into the housing. 4.

  • Page 13: Wiring Connection Diagram

    5 Wiring Connection Diagram...

  • Page 14: Schematic Diagram

    6 Schematic Diagram...

  • Page 15: Exploded View And Replacement Parts List

    7 Exploded View and Replacement Parts List Model No. : EY7880 Exploded View for EY7880...
  • Page 16 Model No. : EY7880 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks WEY7880K3079 HOUSING AB SET 1 (for EUROPE) WEY7880K3070 HOUSING AB SET 1 (for OCEANIA) WEY6813H3116 CHUCK COVER WEY6813K3126 CHUCK HANDLE WEY6813L0426 BALL GUIDE WEY6813L0436...
  • Page 17 Model No. : EY7880 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks WEY7880L4987 MOTOR CASE ASSEMBLY WEY7880L4637 MOTOR BRUSH ASSEMBLY WEY6261B6026 SCREW 2 (K3-6) WEY7880H4617 H/S HANDLE WEY7880H4607 H/D HANDLE WEY7880L0387 O RING 2 (φ15.6) WEY6813L1406...