Use and Care Manual

English

mode will work as a screwdriver in light applications, before hesitating

as the screw head reaches the work piece, and then (if required) start

a slow controlled impact to ensure the head ends perfectly flush.

NOTE: This mode is for light duty screwdriving applications. If the tool

will not drive a fastener in Precision Mode, please select mode 2 which

will give the additional power required.

DCF887

Mode 1 Precision Drive rpm 0–1000

Mode 2 Normal Impacting rpm 0–2800

Mode 3 High Speed Impacting rpm 0–3250

FIG. 8

Usage

Your impact tool can generate the following maximum torque:

Mode Ft.-Lbs. In.-Lbs. Nm

1 20 240 27

2 125 1500 170

3 152 1825 205

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 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

recommended could cause the fasteners to be overstressed,

stripped or damaged.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury,

place the forward/reverse button in the lock-off position or

turn tool off and disconnect battery pack before making any

adjustments or removing/installing attachments or accessories.

An accidental start-up can cause injury.