Operation - DeWalt DCF894 Manual

EnglisH
Worklight (Fig. A)
There is a worklight 7 located on the foot of the tool. The
worklight will be activated when the trigger switch is depressed.
When the trigger is released, the worklight will stay illuminated
for up to 20 seconds. If the trigger switch remains depressed,
the worklights will remain on.
nOTE: The worklight is for lighting the immediate work surface
and are not intended to be used as a flashlight.
Mode Selector (Fig. A, C)
Your tool is equipped with a mode selector
to select low, high, or Precision Wrench™ mode.
Select the mode based on the application and control the speed
of the tool using the variable speed trigger
Precision Wrench™ (Fig. C)
In addition to low speed impacting modes, this tool features
the Precision Wrench™ mode which grants the user greater
control in both fastening and loosening applications. When set
in forward, the tool will fasten at 2000 RPM until impact begins.
The tool will then pause for 0.5 seconds before continuing
to impact at a rate of 3100 IPM, providing the user with
greater control and reducing the chance of overtightening or
damaging material.
When set in reverse, the tool will impact at a normal speed and
rate of 3100 IPM. Upon sensing that the fastener has broken
free, the tool will cease to impact and will reduce speed to help
prevent "run-off" of loose hardware.
DCF894/DCF894H
Low Mode Low Speed Impacting
High Mode High Speed Impacting
Precision Wrench™ Mode Precision Wrench™
Anvils (Fig. A, D, E)

WARNING: Use only impact accessories. Non-impact
accessories may break and cause a hazardous condition.
Inspect accessories prior to use to ensure that it con tains
no cracks.

CAUTION: Inspect anvils, detent pins and hog rings prior
to use. Missing or damaged items should be replaced
before use.
Place the switch in the locked off (centre) position or remove
battery pack before changing accessories.
Anvil with Detent Pin (Fig. D)
DCF894
To install an accessory on the anvil, align the hole in the
side of the accessory with the detent pin
Press the accessory on until the detent pin engages in the hole.
Depression of detent pin may be necessary to aid installation of
accessory.
To remove an accessory, depress the detent pin through the
hole and pull the accessory off.
10
8 which allows you
1 .
RPM 0–900
RPM 0–2000
RPM 0–2000
on the anvil .
13 3
Anvil with Hog Ring (Fig. E)
DCF894H
To install an accessory on the hog ring anvil, firmly push
accessory onto the anvil 3
allow the accessory to slide on. After accessory is installed, the
hog ring applies pressure to help provide accessory retention.
To remove an accessory, grasp the accessory and firmly pull
it off.
nOTE: The thru-hole (Fig. E) 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.

OPERATION

Instructions for Use

WARNING: Always observe the safety instructions and
applicable regulations.

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.
Proper Hand Position (Fig. F)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
sudden reaction.
Proper hand position requires one hand on the main handle
Usage
Your impact tool generates the following maximum torque.
nOTE: Output torque is dependent on the speed selected, with
the highest provided in the Precision Wrench™ mode.
Cat # Ft.-lbs.
Low/High/
Precision Wrench™
DCF894, DCF894H 0–150/0–330/0–330

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:
ʵ Voltage: Low voltage, due to a nearly discharged battery,
will reduce fastening torque.
ʵ Accessory size: Failure to use the correct accessory size
will cause a reduction in fastening torque.
ʵ Bolt Size: Larger bolt diameters generally require higher
fastening torque. Fastening torque will also vary according
to length, grade, and torque coefficient.
. The hog ring 14 compresses to
nm
Low/High/
Precision Wrench™
200/447/447
4 .