Manual DeWalt DHS780 (page 12 of 20) (English)

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ENGLISH

• Ensure the operator is adequately trained in the use, adjustment and operation of themachine.

• Before working select the correct saw blade for the material to becut.

• Use only saw blades where the speed marked on the saw blade is at least equal to the speed

marked on the ratingblade.

• Ensure before each cut that the machine is located on an even and stable surface to

preventmovement.

Residual Risks

In spite of the application of the relevant safety regulations and the implementation of safety

devices, certain residual risks cannot be avoided. These are:

• Impairment ofhearing.

• Risk of personal injury due to flyingparticles.

• Risk of burns due to accessories becoming hot duringoperation.

• Risk of personal injury due to prolongeduse.

Electrical Safety

This machine has been designed to different voltages—battery supply 2x 54V and AC supply

115V or 230V. Always check that the battery pack voltage corresponds to the voltage on

the rating plate. Also make sure that the voltage of your corded power supply and charger

corresponds to that of yourmains.

Your

DeWALT

tool, charger and corded power supply are double insulated in

accordance with EN61029 and EN60335; therefore no earth wire isrequired.

WARNING: 115 V units have to be operated via a fail-safe isolating transformer with an

earth screen between the primary and secondarywinding.

Mains Plug Replacement

(U.K. & Ireland Only)

If a new mains plug needs to be fitted:

• Safely dispose of the oldplug.

• Connect the brown lead to the live terminal in theplug.

• Connect the blue lead to the neutralterminal.

WARNING: No connection is to be made to the earthterminal.

Follow the fitting instructions supplied with good quality plugs. Recommended fuse for the

charger: 3A. Recommended fuse for the corded power supply:13A.

Using an Extension Cable for Your Charger or Corded Power

Supply

An extension cord should not be used unless absolutely necessary. Use an approved extension

cable suitable for the power input of your charger or corded power supply (see Technical

Data). The minimum conductor size is 1.5mm2; the maximum length is30m.

When using a cable reel, always unwind the cablecompletely.

Using the DCB500 Corded Power Supply

The

DeWALT

corded power supply is designed to

provide power for

DeWALT

2x 54 V FLEXVOLT™ cordless

tools. Insert the corded power supply into the mitre

saw battery slot (refer to Installing and Removing the

Corded Power Supply and Figure D) and plug the

power supply into an AC outlet. The power supply will

act as the power source to the tool. Your

DeWALT

corded power supply should only be used with

standard 230V household electric power supply. UK 115V units should be plugged into a

115Vtransformer.

The corded power supply is suitable for use with double insulated 2x54V AC tools. The EU

model of DCB500 has no groundcontact.

Your

DeWALT

corded power supply should only be used with a power supply corresponding

to the voltage on the rating plate of the DCB500 and not with DC power sources. Please

check that the current rating of the tool is smaller or equal to the current rating of the power

supplyadapter.

Additional Specific Usage Instructions

The corded power supply may become warm to the touch during use. This is a normal

condition and does not indicate aproblem.

IMPORTANT. The power supply is not user serviceable. There are no user serviceable parts

inside the power supply. Cord replacement may be conducted at an authorized servicecentre.

SAVE THESE INSTRUCTIONS

Chargers

DeWALT

chargers require no adjustment and are designed to be as easy as possible tooperate.

Important Safety Instructions for All Battery Chargers

SAVE THESE INSTRUCTIONS: This manual contains important safety and operating

instructions for compatible battery chargers (refer to TechnicalData).

• Before using charger, read all instructions and cautionary markings on charger, battery pack,

and product using batterypack.

WARNING: Shock hazard. Do not allow any liquid to get inside charger. Electric shock

mayresult.

WARNING: We recommend the use of a residual current device with a residual current

rating of 30mA orless.

CAUTION: Burn hazard. To reduce the risk of injury, charge only

DeWALT

rechargeable

batteries. Other types of batteries may burst causing personal injury anddamage.

CAUTION: Children should be supervised to ensure that they do not play with

theappliance.

NOTICE: Under certain conditions, with the charger plugged into the power supply, the

exposed charging contacts inside the charger can be shorted by foreign material. Foreign

materials of a conductive nature such as, but not limited to, steel wool, aluminum foil

or any buildup of metallic particles should be kept away from charger cavities. Always

unplug the charger from the power supply when there is no battery pack in the cavity.

Unplug charger before attempting to clean

• DO NOT attempt to charge the battery pack with any chargers other than the ones in

this manual. The charger and battery pack are specifically designed to worktogether.

• These chargers are not intended for any uses other than charging

DeWALT

rechargeable batteries. Any other uses may result in risk of fire, electric shock

orelectrocution.

• Do not expose charger to rain orsnow.

• Pull by plug rather than cord when disconnecting charger. This will reduce risk

ofdamage to electric plug andcord.

• Make sure that cord is located so that it will not be stepped on, tripped over, or

otherwise subjected to damage orstress.

• Do not use an extension cord unless it is absolutely necessary. Use of improper

extension cord could result in risk of fire,electric shock, orelectrocution.

• Do not place any object on top of charger or place the charger on a soft surface

that might block the ventilation slots and result in excessive internal heat. Place the

charger in a position away from any heat source. The charger is ventilated through slots in the

top and the bottom of thehousing.

• Do not operate charger with damaged cord or plug—have them replacedimmediately.

• Do not operate charger if it has received a sharp blow, been dropped, or otherwise

damaged in any way. Take it to an authorised servicecentre.

• Do not disassemble charger; take it to an authorised service centre when service or

repair is required. Incorrect reassembly may result in a risk of electric shock, electrocution

orfire.

• In case of damaged power supply cord the supply cord must be replaced immediately by the

manufacturer, its service agent or similar qualified person to prevent anyhazard.

• Disconnect the charger from the outlet before attempting any cleaning. This will

reduce the risk of electric shock. Removing the battery pack will not reduce thisrisk.

• NEVER attempt to connect two chargerstogether.

• The charger is designed to operate on standard 230V household electrical power. Do

not attempt to use it on any other voltage. This does not apply to the vehicularcharger.

Charging a Battery (Fig. B)

1. Plug the charger into an appropriate outlet before inserting batterypack.

2. Insert the battery pack22 into the charger, making sure the battery pack is fully seated

in the charger. The red (charging) light will blink repeatedly indicating that the charging

process hasstarted.

3. The completion of charge will be indicated by the red light remaining ON continuously.

The battery pack is fully charged and may be used at this time or left in the charger. To

remove the battery pack from the charger, push the battery release button32 on the

batterypack.

NOTE: To ensure maximum performance and life of lithium-ion battery packs, charge the

battery pack fully before firstuse.

Charger Operation

Refer to the indicators below for the charge status of the batterypack.

Charge Indicators

Charging

Fully Charged

Hot/Cold Pack Delay*

* The red light will continue to blink, but a yellow indicator light will be illuminated during this

operation. Once the battery pack has reached an appropriate temperature, the yellow light

will turn off and the charger will resume the chargingprocedure.

The compatible charger(s) will not charge a faulty battery pack. The charger will indicate faulty

battery by refusing to light or by displaying problem pack or charger blinkpattern.

NOTE: This could also mean a problem with acharger.

If the charger indicates a problem, take the charger and battery pack to be tested at an

authorised servicecentre.

Hot/Cold Pack Delay

When the charger detects a battery pack that is too hot or too cold, it automatically starts a

Hot/Cold Pack Delay, suspending charging until the battery pack has reached an appropriate

temperature. The charger then automatically switches to the pack charging mode. This feature

ensures maximum battery packlife.

A cold battery pack will charge at a slower rate than a warm battery pack. The battery pack

will charge at that slower rate throughout the entire charging cycle and will not return to

maximum charge rate even if the battery packwarms.

The DCB118 charger is equipped with an internal fan designed to cool the battery pack. The

fan will turn on automatically when the battery pack needs to be cooled. Never operate the

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DeWalt DHS780 Manual

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