Panasonic 7460OLOA User manual

© Panasonic Electric Works Co., Ltd. 2008.
All rights reserved. Unauthorized copying and distri-
bution is a violation of law.
Order Number PTD0810X45CE
Cordless Drill & Driver
Cordless Hammer Drill & Driver
Model No. EY7460
EY7960
Europe
Oceania
TABLE OF CONTENTS
PAGE PAGE
1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
4 Disassembly and Assembly Instructions ---------------- 6
5 Wiring Connection Diagram ---------------------------------10
6 Schematic Diagram ---------------------------------------------10
7 Exploded View and Replacement Parts List -----------11

2
1Warning
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.
• Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
2 Specifications

3
3 Troubleshooting Guide
(Refer to Wiring Connection Diagram)

4
Qfor EY7960 only

5
3.1. Trial Operation (after checking Troubleshooting Guide.)

6
4 Disassembly and Assembly Instructions
4.1. How to Disassemble Keyless Chuck.
Ref. No. 1A Procedure 1A Removal of the Keyless Drill Chuck.
Fig. 1
Fig. 2
Fig. 3
1. Set the clutch handle to position 1 and select "LOW" position.
2. Turn the lock collar counterclockwise direction to open the chuck
jaws.
3. Use a screwdriver to turn the chuck fastening screw inside the
chuck clockwise direction of the arrow, and remove the screw. (See
Fig. 1).
NOTE:
If the chuck fastening screw will not come loose, insert the allen
wrench into the chuck and lightly tap in the clockwise direction with
a hammer to tighten the chuck, and then loosen the chuck fasten-
ing screw. (See Fig. 2).
4. Insert the allen wrench into the chuck, and turn counterclockwise
direction in the arrow with holding the unit by the vise to remove the
chuck. (See Fig. 3).

7
4.2. How to Disassemble Main Unit.
Ref. No. 2A Procedure 2A Removal of the Housing.
Fig. 4
Fig. 5
1. Remove the support handle. (See Fig. 4).
2. Remove nine housing screws. (See Fig. 5).
NOTE:
Grease rubbing part of housing with Shell Alvania for assembly.
(See Fig. 6)
Fig. 6
Ref. No. 2B Procedure 2A →2B Removal or attachment of the Motor.
Fig. 7
(Removal)
1. Take out the motor with the gear box block from housing.
2. Separate the motor from the gear box block by twisting the motor
to unlock tabs. (See Fig. 7)
(Attachment)
Motor mounting base and the positioning rib of gear case should be
set.

8
Ref. No. 2C Procedure 2A →2B →2C Removal or attachment of the Gear Box Block.
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig.
EY7460
(Removal)
1. Turn the thrust plate to remove.
2. The internal parts of gear box block can be removed one after
another. (See Fig. 8)
(Attachment)
1. Start from inserting 6 rollers and balls into the holes of driving
block one of each as shown in the Fig. 9.
2. Insert 6 pins into the driving block as shown in the Fig. 9.
3. Assemble the other parts in reverse order as shown in the Fig. 8.
NOTE:
Carrier, Ring gear, and Clutch plate have their own correct direc-
tions for proper assembly.
EY7960
(Removal)
1. Turn the thrust plate to remove.
2. The internal parts of gear box block can be removed one after
another. (See Fig. 10)
NOTE:
Adjusting screw can not be taken out without disassembling
inside of the gear box block.
(Attachment)
1. Set the E-type ring.
2. Start from inserting 6 rollers and balls into the holes of driving
block one of each as shown in the Fig. 9.
3. Insert 6 pins into the driving block as shown in the Fig. 9.
4. Assemble the other parts in reverse order as shown in the Fig. 8.
NOTE:
Carrier, Ring gear, and Clutch plate have their own correct direc-
tions for proper assembly.
5. Set the ring as shown in the Fig. 12.

9
Ref. No. 2D Procedure 2A →2B →2C →2D Assembly of the Adjusting Screw and the Clutch Handle.
Fig. 14
1. Hold the driving block with the click spring on top, and align the
smallest projection of adjusting screw with the clutch case. (See Fig.
14)
NOTE:
Make sure that the adjusting screw has its own correct direction
for proper assembly. Failure to do so, the clutch handle does not
rotate properly.
2. Turn the adjusting screw into the driving block about one rotation
for clockwise direction.
3. Set the clutch handle with position 1 on top. (See Fig .15)
Fig. 15
Ref. No. 2E Procedure 2A →2B →2C →2D →2E Assembly of the Switch.
Fig. 16
1. Press fit the lead wires firmly and set the black lead wire on top.
NOTE:
Make sure that the parts of thermistor may not contact housing
rib.

10
5 Wiring Connection Diagram
6 Schematic Diagram