Dewalt DCF840N-XJ - Инструкция по эксплуатации - Страница 13

11

English

Worklights (Fig. A)

There are worklights 

 7 

 located above the trigger switch 

 1 

. 

The worklights will be activated when the trigger switch 
is depressed.
When the trigger is released, the worklights will stay illuminated 
for up to 20 seconds. If the trigger switch remains depressed, 
the worklights will remain on.

nOTE:

 The worklights are for lighting the immediate work 

surface and are not intended to be used as a flashlight.

Quick-Release Chuck (Fig. A, C)

WARNING: 

Use only impact accessories. Non-impact 

accessories may break and cause a hazardous condition. 
Inspect accessory prior to use to ensure that it con tains 
no cracks.

nOTE: 

The chuck accepts 6.35 mm hex accessories and 

25 mm bit tips only. Using 25 mm bits allows better access in 
tight spaces.
Place the forward/reverse button 

 2 

 in the locked off (centre) 

position or remove battery pack before changing accessories.

To install an accessory,

 push accessory to fully insert into 

chuck 

 4 

. The chuck collar 

 3 

 does not need to be pulled up to 

lock accessory in place.

To remove an accessory,

 pull the chuck collar away from the 

front of the tool. Remove the accessory and release the collar.

Usage

Your impact tool generates the following maximum torque:

Cat #

Nm

Ft.-Lbs.

In.-Lbs

DCF840

192

142.6

1700

CAUTION: 

Ensure fastener and/or system will withstand 

the level of torque generated by the tool. Excessive torque 
may cause breakage and possible personal injury.

1.  Place the accessory on the fastener head. Keep the tool 

pointed straight at the fastener.

2.  Press switch to start operation. Release the switch to stop 

operation. Always check torque with a torque wrench, as 
the fastening torque is affected by many factors including 
the following:

• 

Voltage:

 Low voltage, due to a nearly discharged 

battery, will reduce fastening torque.

• 

Accessory size: 

Failure to use the correct accessory 

size will cause a reduction in fastening torque.

• 

Bolt Size:

 Larger bolt diameters generally 

require higher fastening torque. Fastening torque 
will also vary according to length, grade, and 
torque coefficient.

• 

Bolt:

 Ensure that all threads are free of rust and other 

debris to allow proper fastening torque.

• 

Material:

 The type of material and surface finish of 

the material will affect fastening torque.

• 

Fastening Time:

 Longer fasten ing time results in 

increased fastening torque. Using a longer fastening 

time than recom mended could cause the fasteners to 
be overstressed, stripped or damaged.

MAINTENANCE

Your 

D

e

WALT

 power tool has been designed to operate 

over a long period of time with a minimum of maintenance. 
Continuous satisfactory operation depends upon proper tool 
care and regular cleaning.

WARNING: To reduce the risk of serious personal 
injury, turn tool off and disconnect battery pack 
before making any adjustments or removing/
installing attachments or accessories.

 An accidental 

start-up can cause injury.

The charger and battery pack are not serviceable.

Lubrication

Your power tool requires no additional lubrication.

Cleaning

WARNING:

 Blow dirt and dust out of the main housing 

with dry air as often as dirt is seen collecting in and around 
the air vents. Wear approved eye protection and approved 
dust mask when performing this procedure.

WARNING: 

Never use solvents or other harsh chemicals 

for cleaning the non-metallic parts of the tool. These 
chemicals may weaken the materials used in these parts. 
Use a cloth dampened only with water and mild soap. 
Never let any liquid get inside the tool; never immerse any 
part of the tool into a liquid.

Optional Accessories

WARNING:

 Since accessories, other than those offered by 

D

e

WALT

, have not been tested with this product, use of 

such accessories with this tool could be hazardous.

WARNING: 

 Use only impact accessories. Non-impact 

accessories may break and cause a hazardous condition. 
Inspect accessories prior to use to ensure that they contain 
no cracks.

Consult your dealer for further information on the 
appropriate accessories.

Protecting the Environment

Separate collection. Products and batteries marked 
with this symbol must not be disposed of with normal 
household waste.
Products and batteries contain materials that can 

be recovered or recycled reducing the demand for raw 
materials. Please recycle electrical products and batteries 
according to local provisions. Further information is available at 

www.2helpU.com

.