EY-7552 - Power tool PANASONIC - Free user manual and instructions

Product type	Cordless impact drill
Brand	PANASONIC
Model	EY-7552
Power supply	Li-ion 18 V DC battery (3.6 V x 10 cells)
Overall length	214 mm
Weight (with battery)	2.6 kg
No load speed	0 - 1550 min⁻¹
Maximum torque	470 N·m
Impacts per minute	0 - 2400 min⁻¹
Tightening capacity (standard bolt)	M12 - M20
Tightening capacity (high tensile bolt)	M12 - M18
Compatible battery type	EY9L50, EY9L51 (Li-ion)
Compatible charger	EY0L81, EY0L82
Charging time (EY9L50 with EY0L81)	Usable: 50 min, Full: 65 min
Charging time (EY9L51 with EY0L81)	Usable: 65 min, Full: 80 min
Charger weight	0.93 kg
Safety	Switch lock, overheat protection, mandatory use of specific Panasonic battery
Maintenance	Clean with a dry, clean cloth. Do not use water, solvent, or volatile cleaner.
Main functions	Impact drilling, screwdriving, forward/reverse rotation, variable speed control, battery level indicator, overheat indicator

Frequently Asked Questions - EY-7552 PANASONIC

What types of bolts can I tighten with the EY-7552 drill?

You can tighten standard bolts from M12 to M20 and high tensile bolts from M12 to M18. Refer to the maximum recommended capacities table in the manual for details.

How to install the battery correctly?

Align the alignment marks on the battery and tool, then slide the battery until it locks into position. To remove, press the button and slide it forward.

What to do if the overheat indicator lights up?

The indicator signals overheating of the motor or battery. Immediately stop the tool and let it cool completely (at least 30 minutes) before reuse. Avoid prolonged use under heavy load.

How to read the battery level indicator?

Press the battery level button. The indicators show: 3 lit = sufficiently charged, 2 lit = about 50% remaining, 1 lit = low, 1 flashing = empty. The indication is approximate and may vary with battery condition.

Can I use a non-Panasonic battery with this tool?

No, use only the Panasonic standalone battery designed for this tool. Using a recycled or counterfeit battery may cause damage or accidents and voids the warranty.

How to clean the tool?

Clean the tool with a dry, clean cloth. Do not use water, solvent, or volatile cleaner.

What factors affect the tightening torque?

The tightening torque is influenced by battery voltage, tightening time, bolt diameter, tightening conditions (surface, finish), socket play, trigger pressure, and use of adapters.

How to reverse the rotation direction?

Use the forward/reverse lever. Push the lever to one side for forward rotation, to the other for reverse. Return it to the center to lock the switch.

What is the battery charging time?

With the EY0L81 charger: EY9L50 battery: 50 min for usable, 65 min for full charge; EY9L51 battery: 65 min for usable, 80 min for full charge. Times vary depending on charger model.

What to do if the battery does not charge?

Check that the battery is not too hot (it cools automatically before charging) and that the terminals are clean. If the charge indicator does not flash green quickly after the standard time, consult an authorized dealer.

USER MANUAL EY-7552 PANASONIC

Cordless Impact Wrench

Before operating this unit, please read these instructions completely and save this manual for future use.

Original instructions: English Translation of the original instructions: Other languages

Read "the Safety Instructions" booklet and the following before using.

I. ADDITIONAL SAFETY RULES

1) Wear ear protectors when using the tool for extended periods.
2) Be aware that this tool is always in an operating condition, since it does not have to be plugged into an electrical outlet.
3) When screwing or driving into walls, floors, etc., "live" electrical wires may be encountered. DO NOT TOUCH THE HEX QUICK CHUCK OR ANY FRONT METAL PARTS OF THE TOOL! Hold the tool only by the plastic handle to prevent electric shock in case you screw or drive into a "live" wire.
4) Do NOT operate the Forward/Reverse lever when the main switch is on. The battery will discharge rapidly and damage to the unit may occur.
5) During charging, the charger may become slightly warm. This is normal.

Do NOT charge the battery for a long period.

6) When storing or carrying the tool, set the Forward/Reverse lever to the center position (switch lock).
7) Do not strain the tool by holding the speed control trigger halfway (speed control mode) so that the motor stops.

Symbol	Meaning
V	Volts
---	Direct current
n0	No load speed
... min-1	Revolutions or reciprocations per minutes
Ah	Electrical capacity of battery pack
Read the operating instructions before use.
For indoor use only.

WARNING:

• Do not use other than the Panasonic battery packs that are designed for use with this rechargeable tool.
• Panasonic is not responsible for any damage or accident caused by the use of recycled or counterfeit battery pack.
• Do not dispose of the battery pack in a fire, or expose it to excessive heat.
• Do not drive the likes of nails into the battery pack, subject it to shocks, dismantle it, or attempt to modify it.
• Do not allow metal objects to touch the battery pack terminals.
• Do not carry or store the battery pack in the same container as nails or similar metal objects.
• Do not charge the battery pack in a high-temperature location, such as next to a fire or in direct sunlight. Otherwise, the battery may overheat, catch fire, or explode.
• Never use other than the dedicated charger to charge the battery pack. Otherwise, the battery may leak, overheat, or explode.
• After removing the battery pack from the tool or the charger, always reattach the pack cover. Otherwise, the battery contacts could be shorted, leading to a risk of fire.
• When the Battery Pack Has Deteriorated, Replace It with a New One. Continued use of a damaged battery pack may result in heat generation, ignition or battery rupture.

II. ASSEMBLY

Attaching or Removing Socket

1. Attaching Socket

1) Remove the rubber ring and pin.

2) Attach the socket putting each holes.

3) Attach the rubber ring and pin in reverse order of 1).

NOTE:

Attach socket firmly by using pin and rubber ring.

Retainer ring is only for temporary fixing.

1. Removing Socket

1) Remove the rubber ring and pin.

Attaching or Removing Battery Pack

1. To connect the battery pack:

Align the highlighted marker points and attach battery pack.

• Slide the battery pack until it locks into position.

1. To remove the battery pack:

Push the button and slide the battery pack forward.

III. OPERATION

WARNING!

• Do not inhale any smoke emitted from the tool or battery pack as it may be harmful.

[Main unit]

Switch and Forward/ Reverse Lever Operation

CAUTION:

To prevent damage, do not operate Forward/Reverse lever until the socket comes to a complete stop.

Forward Rotation Switch Operation

1. Push the lever for forward rotation.
2. Depress the trigger switch slightly to start the tool slowly.
3. The speed increases with the amount of depression of the trigger for efficient tightening of bolts. The brake operates and the socket stops immediately when the trigger is released.
4. After use, set the lever to its center position (switch lock).

Reverse Rotation Switch Operation

1. Push the lever for reverse rotation. Check the direction of rotation before use.
2. Depress the trigger switch slightly to start the tool slowly.
3. After use, set the lever to its center position (switch lock).

CAUTION:

• To eliminate excessive temperature increase of the tool surface, do not operate the tool continuously using two or more battery packs. Tool needs cool off time before switching to another pack.

Variable Speed Control Trigger

To set the center of a hole, pull the trigger slightly to start the socket rotation slowly. The more the speed control trigger is pulled, the higher the speed becomes.

CAUTION:

When operating the tool by depressing the trigger, there may be a momentary lag before rotation starts. This does not signal a malfunction.

• This lag occurs as the tool's circuitry starts up when the trigger is pulled for the first time after installing a new battery pack or after the tool has not been used for at least 1 minute. Rotation will start without any lag during second and subsequent operations.

Indication panel

(1) Battery level indicator and button

• Press the battery level button.

Battery level indicator shows battery level for approx. 10 seconds.

NOTE:

The indicator will not show the battery level even the button is pushed in the following cases.

• The main unit is powered off.
• Just after attaching the battery pack
• The main unit or battery level button is not operated for approx. one minute. Push the battery level button again after depressing the trigger switch.
• The battery temperature is high. Stop the operation and wait until the battery temperature is low.

Indicator		Battery status
	3 lamps illuminated	Charged enough
	2 lamps illuminated	Approx. 50% remaining
	One lamp illuminated	Battery level is low. Need to be charged soon
	One lamp flashing	Empty Need to be charged immediately

Battery level indication is just guide.

The indication may change due to the condition of battery or ambient temperature.

(2) Overheat warning lamp

Off

(normal) operation

Illuminated:

Overheat (motor)

Flashing:

Overheat (battery)

Indicates operation has been halted due to motor or battery overheating.

To protect the motor or battery, be sure to note the following when carrying out this operation.

• If the motor or battery becomes hot, the protection function will be activated and the motor or battery will stop operating. The overheat warning lamp on the indication panel illuminates or flashes when this feature is active.
• If the overheating protection feature activates, allow the tool to cool thoroughly (at least 30 minutes). The tool is ready for use when the overheat warning lamp goes out.
• Avoid using the tool in a way that causes the overheating protection feature to activate repeatedly.
• If the tool is operated continuously under high-load conditions or if it is used in hot-temperature conditions (such as during summer), the overheating protection feature may activate frequently.
• If the tool is used in cold-temperature conditions (such as during winter) or if it is frequently stopped during use, the overheating protection feature may not activate.

Recommended Grip

Use the grip to hold and operate the driver with one hand. If the job requires additional force, you can push against the rear end of the driver with your other hand.

[Battery Pack] For Appropriate Use of Battery Pack Li-ion Battery Pack

• For optimum battery life, store the Li-ion battery pack following use without charging it.
• When charging the battery pack, confirm that the terminals on the battery charger are free of foreign substances such as dust and water etc. Clean the terminals before charging the battery pack if any foreign substances are found on the terminals.

The life of the battery pack terminals may be affected by foreign substances such as dust and water etc. during operation.

• When battery pack is not in use, keep it away from other metal objects like: paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals together may cause sparks, burns or a fire.
• When operating the battery pack, make sure the work place is well ventilated.
• When the battery pack is removed from the main unit of the tool, replace the battery pack cover immediately in order to prevent dust or dirt from contaminating the battery terminals and causing a short circuit.

Battery Pack Life

The rechargeable batteries have a limited life. If the operation time becomes extremely short after recharging, replace the battery pack with a new one.

Battery Recycling

ATTENTION:

For environmental protection and recycling of materials, be sure that it is disposed of at an officially assigned location, if there is one in your country.

Recommendations for use

Be sure to use the Pack cover

• When the battery pack is not being used, store the battery in a way that foreign substances such as dust and water etc. do not contaminate the terminals. Be sure to attach the battery pack cover to protect the battery terminals.
• When charging the battery pack, confirm that the terminals on the battery charger are free of foreign substances such as dust and water etc. Clean the terminals before charging the battery pack if any foreign substances are found on the terminals.

The life of the battery pack terminals may be affected by foreign substances such as dust and water etc. during operation.

CAUTION:

To protect the motor or battery, be sure to note the following when carrying out operation.

• If the motor and battery becomes hot, the protection function will be activated and the motor and battery will stop operating.

For safe use

• The battery pack is designed to be installed by proceeding two steps for safety. Make sure the battery pack is installed properly to the main unit before use.
• If the battery pack is not connected firmly when the switch is switched on, the overheat warning lamp and the battery low warning lamp will flash to indicate that safe operation is not possible, and the main unit will not rotate normally. Connect the battery pack into the unit of the tool until the red or yellow label disappears.

[Battery Charger] Charging

CAUTION:

• The charger is designed to operate on standard domestic electrical power only as stated in the rating plate. Charge only on the voltage indicated on the rating plate of unit. e.g.230v / 50Hz.
• Do not attempt to use it on any other voltage or frequency rating!
• If the temperature of the battery pack falls approximately below -10^ ( 14^ ), charging will automatically stop to prevent degradation of the battery.
• The ambient temperature range is between 0^ (32^) and 40^ (104^) . If the battery pack is used when the battery temperature is below 0^ (32^) , the tool may fail to function properly.
• Use the charger at temperatures between 0^ C and 40^ C , and charge the battery at a temperature similar to that of the battery itself. (There should be no more than a 15^ C difference between the temperatures of the battery and the charging location.)
• When charging a cool battery pack (below 0^ ( 32^ ) in a warm place, leave the battery pack at the place and wait for more than one hour to warm up the battery to the level of the ambient temperature.
  Cool down the charger when charging more than two battery packs consecutively.
• Do not insert your fingers into contact hole, when holding charger or any other occasions.

CAUTION:

To prevent the risk of fire or damage to the battery charger.

• Do not cover vent holes on the charger and the battery pack.
• Unplug the charger when not in use.

NOTE:

Your battery pack is not fully charged at the time of purchase. Be sure to charge the battery before use.

How to charge

1. Plug the charger into the AC outlet.

NOTE:

Sparks may be produced when the plug is inserted into the AC power supply, but this is not a problem in terms of safety.

1. Connect the battery pack firmly into the charger.

1 Line up the alignment marks and place the battery onto the dock on the charger.
2 Slide forward in the direction of the arrow.

Alignment marks

1. During charging, the charging lamp will be illuminated.

When charging is completed, an internal electronic switch will automatically be triggered to prevent overcharging.

• Charging will not start if the battery pack is warm (for example, immediately after heavy-duty operation).

The orange standby lamp will be flashing until the battery cools down.

Charging will then begin automatically.

1. The charge lamp (green) will flash slowly once the battery is approximately 80% charged.
2. When charging is completed, the charging lamp in green color will turn off.
3. If the temperature of the batter pack is 0^ or less, charging takes longer to fully charge the battery pack than the standard charging time.

Even when the battery is fully charged, it will have approximately 50% of the power of a fully charged battery at normal operating temperature.

1. Consult an authorized dealer if the charging lamp (green) does not turn off.
2. If a fully charged battery pack is inserted into the charger again, the charging lamp lights up. After several minutes, the charging lamp in green color will turn off.
3. Remove the battery pack while the battery pack release button is held up.

Battery pack release button

LAMP INDICATIONS

Information for Users on Collection and Disposal of Old Equipment and used Batteries

These symbols on the products, packaging, and/or accompanying documents mean that used electrical and electronic products and batteries should not be mixed with general household waste.

For proper treatment, recovery and recycling of old products and used batteries, please take them to applicable collection points, in accordance with your national legislation and the Directives 2002/96/EC and 2006/66/EC.

By disposing of these products and batteries correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling.

For more information about collection and recycling of old products and batteries, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items.

Penalties may be applicable for incorrect disposal of this waste, in accordance with national legislation.

For business users in the European Union

If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information.

[Information on Disposal in other Countries outside the European Union]

These symbols are only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer and ask for the correct method of disposal.

IV. MAINTENANCE

• Use only a dry, soft cloth for wiping the unit. Do not use a damp cloth, thinner, benzine, or other volatile solvents for cleaning.
• In the event that the inside of the tool or battery pack is exposed to water, drain and allow to dry as soon as possible. Carefully remove any dust or iron filings that collect inside the tool. If you experience any problems operating the tool, consult with a repair shop.

V. TIGHTENING TORQUE

The power required for tightening a bolt will vary, according to bolt material and size, as well as the material being bolted. Choose the length of tightening time accordingly.

Reference values are provided below. (They may vary according to tightening conditions.)

Factors Affecting Tightening Torque

The tightening torque is affected by a wide variety of factors including the followings. After tightening, always check the torque with a torque wrench.

1) Voltage

When the battery pack becomes nearly discharged, the voltage decreases and the tightening torque drops.

M16, M20, M24 x 45 mm

High tensile bolt

Tightening conditions

• The following bolts are used. Standard bolts: Strength type 4.8 High tensile type 12.9

2) Tightening time

Longer tightening time results in increased tightening torque. Excessive tightening, however, adds no value and reduces the life of the tool.

3) Different bolt diameters

The size of the bolt diameter affects the tightening torque.

Generally, as the bolt diameter increases, tightening torque rises.

4) Tightening conditions

• Tightening torque will vary, even with the same bolt, according to grade, length, and torque coefficient (the fixed coefficient indicated by the manufacturer upon production).

• Tightening torque will vary, even with the same bolting material (e.g. steel), according to the surface finish.

• Torque is greatly reduced when the bolt and nut start turning together.

5) Socket play

Torque is lowered as the six-sided configuration of the socket of the wrong size is used to tighten a bolt.

6) Switch (Variable speed control trigger)

Torque is lowered if the unit is used with the switch not fully depressed.

7) Effect of Connecting Adaptor

The tightening torque will be lowered through the use of a universal joint or a connecting adaptor.

VI ACCESSORIES

Use only suitable size of socket.

VII. APPENDIX

MAXIMUM RECOMMENDED CAPACITIES

Model	EY7552
Bolt fastening	Standard bolt : M12 - M20 High tensile bolt : M12 - M18

WARRANTY SUPPLEMENT

The breakdown and damage caused by usage consistent for a long time (e.g.: factory work on the assembly line, etc.) is out of warranty.

VIII. SPECIFICATIONS

MAIN UNIT

Model	EY7552
Motor voltage	18 V DC
No load speed	0 - 1550 min-1
Maximum torque	470 N·m
Impact per minute	0 - 2400 min-1
Overall length	214 mm
Weight (with battery pack: EY9L50)	2.6 kg
Weight (with battery pack: EY9L51)
Noise,Vibration	See the included sheet

BATTERY PACK

Model	EY9L50	EY9L51
Storage battery	Li-ion Battery
Battery voltage	18 V DC (3.6 V x 10 cells)

BATTERY CHARGER

Model	EY0L81
Electrical rating	See the rating plate on the bottom of the charger
Weight	0.93 kg
Charging time	EY9L50	EY9L51
	Usable: 50 min	Usable: 65 min
	Full: 65 min	Full: 80 min
Model	EY0L82
Electrical rating	See the rating plate on the bottom of the charger
Weight	0.93 kg
Charging time	EY9L50	EY9L51
	Usable: 40 min	Usable: 55 min
	Full: 55 min	Full: 70 min

NOTE: This chart may include models that are not available in your area.

Please refer to the latest general catalogue.

NOTE: For the dealer name and address, please see the included warranty card.

ONLY FOR U. K.

ELECTRICAL PLUG INFORMATION

FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT CAREFULLY

This appliance is supplied with a moulded three pin mains plug for your safety and convenience.

A 5 amp fuse is fitted in this plug.

Should the fuse need to be replaced please ensure that the replacement fuse has a rating of 5 amp and that it is approved by ASTA or BSI to BS1362.

Check for the ASTA mark or the BSI mark on the body of the fuse.

If the plug contains a removable fuse cover you must ensure that it is refitted when the fuse is replaced.

If you lose the fuse cover the plug must not be used until a replacement cover is obtained.

A replacement fuse cover can be purchased from your local Panasonic Dealer.

IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET IN YOUR HOME THEN THE FUSE SHOULD BE REMOVED AND THE PLUG CUT OFF AND DISPOSED OF SAFELY.

THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO ANY 13 AMP SOCKET.

If a new plug is to be fitted please observe the wiring code as shown below.

If in any doubt please consult a qualified electrician.

IMPORTANT:

The wires in this mains lead are coloured in accordance with the following code:

Blue: Neutral

Brown: Live

As the colours of the wire in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows.

The wire which is coloured BLUE must be connected to the terminal in the plug which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal in the plug which is marked with the letter L or coloured RED.

Under no circumstances should either of these wires be connected to the earth terminal of the three pin plug, marked with the letter E or the Earth Symbol 1÷ .

How to replace the fuse: Open the fuse compartment with a screwdriver and replace the fuse and fuse cover if it is removable.

This apparatus was produced to BS800.

Clignotant: Surchauffe (battery)

Pacco battery Li-ion

Lyser: Overophedning (motor)

Blinker: Overophedninq (batteri)

Indicates operation has

been halted due to motor

or battery overheating.

Off (normal operation)

Illuminated: Overheat (motor)

Flashing: Overheat (battery)

Indicates operation has been halted due to motor or battery overheating.

For a beskytte motoren aller batteriet, pass pa falgende nár dette arbeidet utfores.

Off (normal operation)

Illuminated: Overheat (motor)

Flashing: Overheat (battery)

Indicates operation has been halted due to motor or battery overheating.

VIII. TEKNISET TIEDOT

PÄALAITE