Panasonic EY7442 User manual

bution is a violation of law.

Order Number PTD1103X35CE

Cordless Drill & Driver / Cordless Hammer Drill & Driver

Model No. EY7442

EY7450

(Cordless Drill & Driver)

Model No. EY7950

(Cordless Hammer Drill

& Driver)

Europe and 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---------------------------------------------17

7 Exploded View and Replacement Parts List -----------18

1Warning

Caution:

• Pb free solder has a higher melting point that standard solder; Typical 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

3 Troubleshooting Guide

(Refer to Wiring Connection Diagram)

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 repairing.

3.1.2. OPERATION

1. Confirm the forward and reverse side of rotation.

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

ON.

3. Confirm if the tools become hot in a short operation.

4. Confirm the action when setting the DRILL mode.

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

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

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

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

9. No clutching when setting mark.

only for EY7950

10. Rotation with hammering may work when the drill bit touches something like concrete or hard type of wood block by

mode. And confirm the power.

4 Disassembly and Assembly Instructions

Ref. No. 1A Procedure 1A Removal of Keyless chuck.

NOTE:

When attaching or removing a bit, disconnect battery pack from

tool.

1. Set the clutch handle to position and select “LOW” position.

2. Turn the lock collar counterclockwise (looking from the front) 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.

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.

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.

Ref. No. 2B Procedure 2A →2B Removal of Housing.

1. Remove 9 housing screws.

Ref. No. 2C Procedure 2A →2B→2C Removal of Motor screw.

1. Remove 2 screws.

Ref. No. 2D Procedure 2A →2B →2C →2D Removal of Switch and Driving block.

1. Take out the switch assembly.

2. Take out the driving block.

3. Separate the motor from the gear box block by twisting the motor

to unlock tabs.

Ref. No. 2E Procedure 2A →2B →2C→2D →2E Removal of Motor brush assembly.

1. Hitch the brush spring to the groove of holder by something like

forceps and separate the motor brush assembly from commutator.

2. Take out the motor brush assembly from the motor case.

Ref. No. 2F Procedure 2A →2B →2C→2D →2E →2F Removal or assembly of Control PCB.

(Removal)

1. Pull out the connector from the control PCB.

NOTE:

Make sure hold the connector at the bottom area.

(Assembly)

1. Apply the permalub grease around the tact switch.

NOTE:

Make sure to apply the grease to keep IP56.

2. Insert the connector firmly.

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