DeWalt DCF899 Guide D'utilisation page 15

FIG. 7
C
I
DCF899H
To remove an accessory, grasp the accessory and firmly pull it off.
NOTE: The thru-hole (Fig. 8) allows an O-ring with retaining pin
or a 1-piece retaining pin to be used to help secure sockets and
accessories to the tool.
ANVIL WITH QUICK-RELEASE CHUCK (FIG. 9)
DCF898
NOTE: The chuck accepts 7/16" (11 mm) hex accessories only.
To install an accessory, pull the chuck collar (J) away from the front
of the tool, insert the accessory and release the collar. The accessory
is locked in place.
To remove an accessory, pull the chuck collar away from the front
of the tool. Remove the accessory and release the collar.
FIG. 9
DCF898
FIG. 8
C
I
DCF897
J
Usage
Your impact tool can generate the following maximum torque values
(Speed 3, Speed 2, Speed 1).
NOTE: Output torque is dependent on the speed selected, with the
highest provided in Speed 3.
Cat #
Speed 3/2/1
DCF897 700/300/100
DCF898 500/300/100
DCF899, DCF899H 700/300/100
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.
13
Ft.-Lbs. Nm
Speed 3/2/1
950/400/130
680/400/130
950/400/130