Panasonic EY7451 Manuale utente

ing and distribution is a violation of law.

Order Number PTD1808E01CE

Cordless Drill & Driver

Model No. EY7451

Europe

TABLE OF CONTENTS

PAGE

1 Safety Precautions----------------------------------------------- 2

2 Specifications ----------------------------------------------------- 2

2.1. EY7451 MAIN UNIT -------------------------------------- 2

2.2. MAXIMUM RECOMMENDED CAPACITIES ------- 2

3 Troubleshooting Guide ----------------------------------------- 3

3.1. Trial Operation (after checking

Troubleshooting Guide.) --------------------------------- 6

4 Disassembly and Assembly Instructions ---------------- 7

4.1. How to disassemble Plate hoot and Keyless

chuck.--------------------------------------------------------- 7

4.2. How to disassemble Main unit.------------------------- 8

5 Wiring Connection Diagram ---------------------------------13

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

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

7.1. PARTS LOCATION---------------------------------------15

7.2. REPLACEMENT PARTS LIST ------------------------16

1 Safety Precautions

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

soldering 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. EY7451 MAIN UNIT

2.2. MAXIMUM RECOMMENDED CAPACITIES

Motor 18V DC

No load speed

LOW 70 ~ 400/min (rpm)

HIGH 200 ~ 1400/min (rpm)

Chuck capacity 1.5 ~ 13mm (1/16" ~ 1/2")

Macimum torque Stalling torque (3.0Ah Li-ion Battery)

Clutch torque Approx. 0.5Nm (5.0kgf-cm, 4.3in-lbs) -4.4Nm (45.Okgf-cm, 39.0in-lbe)

Overall length 193mm (7-5/8")

Weight (with battery pack EY9L53) 1.65kg (3.751bs)

Motor EY7451

Screw driving

Machine screw M5

Wood screw 6.8 mm (17/64")

Self-drilling 6 mm (15/64")

Drilling for Wood 38 mm (1-3/8")

for Metal 13 mm (1/2")

for Masonry 

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 abnormal sound when shaking the unit.

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, press the switch handle; otherwise LED does not right ON.

3. Confirm if the tools may not 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.

3.1.3. SWITCH

1. Confirm the rotation of speed if it changes between 200-1400 ± 140 rpm in proportion to the amount of pushing level on switch

handle on HIGH mode and 70-400 ± 40 rpm on LOW mode.

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

3.1.4. CLUTCH

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

4 Disassembly and Assembly Instructions

4.1. How to disassemble Plate hoot and Keyless chuck.

4.1.1. Removal of the Housing.

Removal

1. Loosen a screw.

2. Take out the plate hook.

4.1.2. Removal of Motor screw.

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 fastening screw.

4. Insert the allen wrench into the chuck, and turn counter-

clockwise direction in the arrow with holding the unit by

the vise to remove the chuck.

4.2. How to disassemble Main unit.

4.2.1. Removal of the Housing.

1. Remove 8 housing screws.

4.2.2. Removal of Motor screw.

Removal

1. Remove 2 screws.

4.2.3. Removal of Switch and Driving

block.

Removal

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.

4.2.4. Removal or assembly of Control

PCB.

Removal

1. Take out the connector from the control PCB.

NOTE:

Make sure hold the connector at the bottom area.

Assembly

1. Insert the connector.

4.2.5. Removal or attachment of the Gear

Box Block.

Removal

1. Turn the thrust plate to remove.

2. The internal parts of gear box block can be removed one

after another.

Attachment

1. Start from inserting 6 pins into the driving block as shown

in the figure.

2. Assemble the other parts in reverse order as shown in the

figure.

NOTE:

Carriers and Ring Gears have their own correct directions

for proper reassembly.

4.2.6. Assembly of the Adjusting Screw and the Clutch Handle.

1. Hold the driving block with the click spring on top, and

align the narrow projection of adjusting screw with 45°

right side of the clutch case.

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.

(Align the position 1 of clutch handle with the narrow pro-

jection of driving block.)

4. Insert the clutch handle with adjusting the tabs of adjust-

ing screw to the groove of inside clutch handle.

Indice

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