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© Panasonic Eco Solutions Power Tools Co., Ltd.

2012. All rights reserved. Unauthorized copying and

distribution is a violation of law.

Order Number PTD1208E02CE

Drill & Driver

Model No. EY74A1

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 ---------------------------------14

6 Schematic Diagram ---------------------------------------------14

7 Exploded View and Replacement Parts List -----------15

2

1Warning

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.

• Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).

2 Specifications

3

3 Troubleshooting Guide

3.1. Troubleshooting Guide (Refer to Wiring Connection Diagram)

4

5

6

3.2. Trial Operation (after checking Troubleshooting Guide)

3.2.1. Assembly

• Confirm if there is no gap between housing A and B by pinching lead wires.

• There is no dust or deformation on battery terminals.

• Confirm if there is no dirt when repairing.

3.2.2. Operation

• Confirm the forward and reverse side of rotation.

• Confirm if LED lights ON. Once battery pack is removed, press the switch handle; otherwise LED does not light ON.

• Check if the motor rotation become higher as the amount of depression of switch handle.

• Check if the rotation speed is normal rated value.

High : 1,750/min (rpm) at 18V, 1,400/ min (rpm) at 14.4V

Low : 600/min (rpm) at 18V, 450/ min (rpm) at 14.4V

• Confirm the action when setting the drill mode .

• Confirm if the rotation stops immediately when releasing the switch handle.

• Confirm if the chuck jaws move smoothly and hold the bit firmly.

• Check if the clutch torque changes suited for the number of clutch.

• Confirm if the chuck is assembled firmly and chuck jaws operate normally.

• Confirm if there is no abnormal sound when shaking the unit with the switch on.

7

4 Disassembly and Assembly Instructions

*Please assemble by opposite procedure.

4.1. How to remove the keyless chuck

4.2. How to remove the housing

8

4.3. How to remove the lead wires from the motor brush assembly and the

control PCB.

4.4. How to remove the switch assembly

9

4.5. How to remove the driving block

4.6. How to remove the motor carbon brush assembly

10

4.7. How to remove the driving block and the motor assembly

4.8. How to remove the control PCB