DeWalt DCH911 Original Instructions Manual page 37

Inserting and Removing the Battery Pack
from the Tool (Fig. B)
nOTE: Make sure your battery pack
To Install the Battery Pack into the Tool Handle
1. Align the battery pack with the rails inside the tool's
handle (Fig. B).
2. Slide it into the handle until the battery pack is firmly seated
in the tool and ensure that you hear the lock snap into place.
To Remove the Battery Pack from the Tool
1. Press the battery release button
battery pack out of the tool handle.
2. Insert battery pack into the charger as described in the
charger section of this manual.
Fuel Gauge Battery Packs (Fig. B)
Some D WALT battery packs include a fuel gauge, which
e
consists of three green LED lights that indicate the level of
charge remaining in the battery pack.
To actuate the fuel gauge, press and hold the fuel gauge
button 14 . A combination of the three green LED lights will
illuminate, designating the level of charge left. When the level
of charge in the battery is below the usable limit, the fuel gauge
will not illuminate and the battery will need to be recharged.
nOTE: The fuel gauge is only an indication of the charge left on
the battery pack. It does not indicate tool functionality and is
subject to variation based on product components, temperature
and end‑user application.
Bail/Loop Style Auxiliary Handle (Fig. C)

WARNING: To reduce the risk of personal injury, ALWAYS
operate the tool with the bail/loop style auxiliary handle
properly installed when using the tool for horizontal
applications. Failure to do so may result in the bail/loop
style auxiliary handle slipping during tool operation and
subsequent loss of control. Hold tool with both hands to
maximize control.
The bail/loop style auxiliary handle
the gear case and may be rotated 360˚ to permit right‑ or
left‑hand use.
Mounting the Bail/Loop Style Auxiliary Handle
(Fig. C)
1. Widen the ring opening
handle 5 by rotating the screw for handle mounting
counterclockwise.
2. Slide the assembly onto the nose of the tool through
the ring opening 15 and onto the chisel position index
collar 3 , past the chisel holder and sleeve.
3. Rotate the bail/loop style auxiliary handle to the
desired position.
4. Lock the bail/loop style auxiliary handle in place by securely
tightening the screw for handle mounting
clockwise so that the assembly will not rotate.
is fully charged.
8
9 and firmly pull the
5 clamps to the front of
15 of the bail/loop style auxiliary
, rotating it
6
Chisel and Tool Holder

WARNING: Burn hazard. ALWAYS wear gloves when
changing chisels. Accessible metal parts on the tool and
chisels may get extremely hot during operation. Small bits
of broken material may damage bare hands.
Inserting and Removing SDS max® Accessories
(Fig. D)
This machine uses SDS max® chisels (refer to the inset in
Figure D for a cross‑section of an SDS max® chisel shank).
1. Clean the chisel shank.

WARNING: Do not apply lubricant to the machine.
2. Pull back the locking sleeve
3. Release the locking sleeve and turn the chisel slightly until
the locking sleeve snaps into position.
4. Pull on the chisel to check if it is properly locked. The
hammering function requires the chisel to be able to move
axially several centimetres when locked in the chisel holder.
5. To remove a chisel pull back the locking sleeve
the chisel out of the tool holder
Indexing the Chisel Position (Fig. E)
The chisel can be indexed and locked into 12 different positions.
1. Insert the chisel as described above.
2. Rotate the chisel position index collar
the arrow until the chisel is in the desired position.
Speed Control Slider (Fig. A)
Move the speed control slider
The required setting is a matter of experience, for example:
• When chiselling soft, brittle materials or when minimum
break‑out is required, move the speed control slider down
(low). The white low speed LED
• When breaking harder materials, move the speed control
slider up (full power). The white LED will be covered.
Service Indicator LED (Fig. A)
Your breaker has yellow service indicator LED
when service is required. Refer to the table for more information
on LED functionality.
LED Function
Yellow
6
(permanently on)
EnGLIsh
and insert the chisel shank.
4
and pull
4
.
4
3 in the direction of
11 to the desired level.
will illuminate.
10
12 , to indicate
Description
service required
The yellow service indicator
LED 12 lights up to indicate
the tool needs servicing within
the next 10 hours of use (new
lubrication and hammer
mechanism sealing).
35