Panasonic EY7881 Bedienungsanleitung

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of law.

ORDER NO. PTD1809E53CE

Cordless Rotary Hammer

Model No. EY7881

Europe

TABLE OF CONTENTS

PAGE PAGE

1 Warning -------------------------------------------------------------- 2

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

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

4 Disassembly and Assembly Instructions ---------------- 6

5 Exploded View and Replacement Parts List -----------11

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

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

3 Troubleshooting Guide

3.1. Troubleshooting Guide

3.2. Trial Operation (after checking Troubleshooting Guide).

3.2.1. Hammer/Drill

• Confirm the action when setting the H/D handle to HAMMER mode.

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

the power.

It is OK, if it takes about 5 seconds by 20kgf to hole (Φ6×30) on the concrete.

• Confirm the action when setting the H/D handle to DRILL mode.

No hammering when the drill bit touches something like concrete or hard type of wood block. And confirm the forward and

reverse side of rotation.

3.2.2. Switch

• Change the rotation speed in proportion to the amount of pushing level on switch trigger.

Low mode: 0-560 min-1 (rpm)

Middle mode: 0-680 min-1 (rpm)

High mode: 0-840 min-1 (rpm)

3.2.3. Control PCB

• Press the light button on the operation panel to confirm that the LED light up.

• Check if the battery low warning lamp is lit properly.

• Disengage the lock lever and pull the battery pack to confirm that the battery level indicator lamp flashes.

3.2.4. Assembly

• Confirm if there is NO gap between Housing A and B by pinching the lead wires.

• Confirm all screws are tightened firmly.

• Confirm that the bellows contract smoothly.

• Install the dust collection system to the main unit and confirm proper operation.

4 Disassembly and Assembly Instructions

* To reduce the risk of injury, always remove battery pack before removing/attaching the tool.

* To assemble the tool, start with 4.6. and proceed to 4.1.

4.1. How to remove the Chuck handle.

4.2. How to remove the Housing.

1. Loosen the support handle and take it out from the unit.

2. Pluck the chuck cover depressing the chuck handle.

Note:

If it is hardly to take out, use the slotted-head screwdriver.

3. Remove the chuck handle.

4. Take out a steel ball pushing the chuck spring with the chuck spring

plate.

5. Remove the chuck spring plate and chuck spring.

1. Remove 21pcs delta PT screws.

2. Remove 2pcs truss TP screwss.

3. Remove the H/D handle.

Note: (when assembling)

When reassembling, make sure that the elongated hole in the joint

installed in the bellows is positioned on the grip side.

4.3. How to remove the Driving block

1. Remove the delta PT screws, tight screws and felt.

2. Remove the Gear case B.

3. Remove the motor assembly, switch and module assembly from the

gear case A.

4. Remove the crank shaft assembly and gear shaft assembly.

Note: (when replacing the motor assembly’s bearing)

Use a pulley removal tool to dismount the bearing.

5. Remove the cylinder assembly from the gear case A.

6. Remove the shaft and piston assembly.

Note:

The o-ring cannot be reused after being repaired.

7. Detach the round S-type retaining ring by using a snap ring plier or

the like, and then dismount the bearing by using a pulley removal tool.

4.4. Check the following when replacing the O-ring.

• The O-ring should extend slightly from the edge face of the hammer/striker.

• Make sure that the O-ring is not worn.

• Make sure that the installed O-ring is not twisted.

8. Remove the pins by using a magnet, and dismount the spindle,

striker, striker stopper and O-ring.

4.5. Apply grease

4.6. Wiring and Assembly Points.

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