Panasonic EY7443 User manual

© Panasonic Eco Solutions Power Tools Co., Ltd.
2013. All rights reserved. Unauthorized copying and
distribution is a violation of law.
Order Number PTD1301X17CE
Cordless Auto Drill & Driver
Model No. EY7443
Europe
Oceania
TABLE OF CONTENTS
PAGE PAGE
1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
4 Disassembly and Assembly Instructions ---------------- 8
5 Wiring Connection Diagram ---------------------------------16
6 Schematic Diagram ---------------------------------------------16
7 Exploded View and Replacement Parts List -----------17

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

4

5

6

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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
• Check whether the tool operates properly in both the forward and reveres directions.
• Check whether the LED light turns on and off each time the LED light on/off button is depressed.
• Check whether the tool detects the load and switches gears automatically during AUTO mode operation (continuous speed
adjustment).
• Check whether the gear can be fixed during HIGH/LOW mode operation.
• Check whether the tool speed is normal after repair and reassembly.
• High mode: 180 to 1,400 rpm
• Low mode: 50 to 400 rpm
• Check whether the tool may become hot in a short operation.
• Set the clutch handle to the mark and check whether the tool rotates without any clutch operation.
• Operate (rotate) the keyless chuck and check whether the chuck’fs three jaws move smoothly.
• Pull the trigger all the way back and check whether the tool stops rotating immediately when it is released.
3.2.3. Integrity
• With the switch activated, shake the tool back and forth and up and down and verify that its sound does not change excessively.
• Rotate the clutch handle and check whether the clutch switches properly.
• Check whether the keyless chuck is attached securely to the tool.
• Check whether the chuck's jaws operate properly.
• Check for the presence of any dirt or foreign matter from the repair process on the outside of the tool.

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4 Disassembly and Assembly Instructions
*To assemble the tool, start with 5-12 and proceed to 5-1
*Set the clutch handle to select ''HIGH" position.
4.1. Removing the keyless chuck
4.2. Removing the plate hook

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4.3. Removing the housing

10
4.4. Removing the Module assembly

11
4.5. Removing the Switch assembly
4.6. Removing the Gear Box Block and Associated Parts

12
4.7. Removing the Carbon brush block
4.8. Removing the Transmission Assembly from the Gear Box Block

13
4.9. Removing the motor assembly from the gear box brock
4.10. Removing the Detective module

14
4.11. Tips for installing the Clutch Handle onto the Gear Box Block

15
4.12. Wiring and Assembly Points

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5 Wiring Connection Diagram
6 Schematic Diagram

Model No. : EY7443 Exploded View
7 Exploded View and Replacement Parts List
17

Model No. : EY7443 Parts List
Safety
Ref.
No. Part No. Part Name & Description Q'ty Remarks
1 WEY7443H3079 HOUSING AB SET 1 (for EUROPE)
2 WEY6450L6806 CHUCK FASTENING SCREW 1
3 WEY7441K7917 KEYLESS CHUCK 1
4 WEY7441H3227 CLUTCH HANDLE 1
5 WEY7443L4057 GEAR BOX BLOCK 1
6 WEY7441L0637 ADJUSTING SCREW 1
7 WEY7441L0177 CLUTCH SPRING 1
8 WEY7441L0577 CLUTCH PLATE 1
9 WEYT107L0456 CLICK SPRING A 1
10 WEY7443L4121 TRANSMISSION ASSEMBLY 1
11 WEY7443L4058 MOTOR ASSEMBLY 1
12 WEY7441L6028 SCREW 2 (K3-6)
13 WEY7443L2007 SWITCH ASSEMBLY 1
14 WEY7443L2107 MODULE ASSEMBLY 1
15 WEY7443L2187 DETECTIVE MODULE 1
16 WEY7443W0957 HEAT RESISTANT TAPE 1 30m/roll
17 WEY7443H3247 F/R SELECTOR HANDLE 1
18 WEY7443J3237 H/L CHANGE HANDLE 1
19 WEY7443K3958 OPERATION PANEL 1
20 WEY7441K9038 TAPPING SCREW 10 (K3-20)
21 WEY7441L6487 NUT 1 (M4)
22 WEY7441K6217 SCREW 1 (4-14)
23 WEY7543K3187 PLATE HOOK 1
- WEY9L40R2788 BATTERY PACK COVER 1
- WEY7443K7019 TOOL CASE 1
- WEY7443K8109 OPERATING INSTRUCTIONS 1
- WEY003W8957 GREASE (PERMALUB) 1
- WEY004X8967 CALFOREX 1
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