Panasonic EY7420 User manual

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© 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

Model No. EY7420

Europe

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

2.1. MAIN UNIT

2.2. MAXIMUM RECOMMENDED CAPACITIES

2.3. BATTERY PACK

2.4. BATTERY CHARGER

3

3 Troubleshooting Guide

(Refer to Wiring Connection Diagram)

4

5

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. There is no dust or deformation on battery terminals.

5. Confirm if there is no dirt when reparing.

3.1.2. OPERATION

1. Confirm the forward and reverse side of rotation.

2. Confirm the smooth changing of HIGH and LOW handle and its changing mode.

3. Confirm if LED rights ON. Once battery pack is removed and attached, press the switch handle, otherwise LED does not right

ON.

4. Confirm the smooth sliding of bit holder and to hold the bit firmly.

5. Confirm if the rotation;

HIGH: 0-900 +150/-100 rpm LOW: 0-300 +50/-30 rpm

3.1.3. SWITCH

1. Confirm the rotation of speed if it changes in proportion to the amount of pushing level on switch handle.

2. Confirm if the rotation stops when releasing the switch handle.

3. Confirm if the auto-stop operation with clutch “5”

3.1.4. CLUTCH

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

7

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.

8

Ref. No. 2A Procedure 1A →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.

Ref. No. 2B Procedure 1A →2A →2B Removal of Control PCB.

1. Take out the connector from the control PCB.

NOTE:

Make sure hold the connector at the bottom area.

9

Ref. No. 2C Procedure 1A →2A →2B →2C Removal of Battery terminal block.

1. Take out the connector from the battery terminal block with a

screw driver.

Ref. No. 2D Procedure 1A →2A →2B →2C →2D Removal and assembly of motor assembly.

(Removal)

1. Unsolder to take out the lead wires.

(Assembly)

1. Use the isolation type of soldering iron (less than 80W).

2. Solder within 3 seconds with less than 400°C.

NOTE:

lead-free solder (Sn-3Ag-0.5Cu).

10

Ref. No. 2E Procedure 1A →2A →2B →2C →2D →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. Insert the torque detection PCB into the groove of gear box block.

NOTE:

Make sure the direction of detection PCB.

2. Assemble the clutch plate.