Operation - DeWalt XR DCH172 Original Instructions Manual

EnGLIsh
The ultilty hook can be be attached to either side of the tool
using only the screw provided, to accommodate left‑ or right‑
handed users. If the hook is not desired at all, it can be removed
from the tool.
To move ultilty hook, remove the screw that holds the ultilty
hook in place then reassemble on the opposite side. Be sure to
securely tighten the screw.
Bit and Bit Holder

WARNING: Burn Hazard. ALWAYS wear gloves when
changing bits. Accessible metal parts on the tool and bits
may get extremely hot during operation. Small bits of
broken material may damage bare hands.
The hammerdrill can be fitted with different bits depending on
the desired application. Use sharp drill bits only.
Bit Reccomendations
• For wood, use twist bits, spade bits, power auger bits or
hole saws.
• For metal, use high‑speed steel twist drill bits or hole saws.
Use a cutting lubricant when drilling metals. The exceptions
are cast iron and brass which should be drilled dry.
SDS plus® Bit Holder (Fig. H)
nOTE: Special adapters are needed to use the SDS plus® bit
holder with straight shank bits and hexagonal screwdriver bits.
Refer to Optional Accessories.
To insert a drill bit or other accessory:
1. Insert the shank of the bit about 19 mm into SDS plus® tool
holder 17 .
2. Push and rotate bit until it locks in place. The bit will be
securely held.
3. To release bit, pull the sleeve

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. E)

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 side handle
with the other hand on the main handle
38
18 back and remove the bit.
1
6 .
Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch
tool off, release the trigger switch. Your tool is equipped with
a brake. The chuck will stop as soon as the trigger switch is
fully released.
Variable Speed Trigger Switch
The variable speed trigger switch enables you to select the best
speed for a particular application. The farther you squeeze the
trigger switch, the faster the tool will operate. For maximum tool
life, use variable speed only for starting holes or fasteners.
nOTE: Continuous use in variable speed range is not
recommended. It may damage the trigger switch and should
be avoided.
Forward/Reverse Control Button (Fig. F)
A forward/reverse control button
bit rotation and also serves as a lock‑off button.
To select forward rotation, release the trigger switch
depress the forward/reverse control button on the right side of
the tool.
To select reverse, depress the forward/reverse control button
on the left side of the tool.
The centre position of the control button locks the tool in
the off position. When changing the position of the control
button, be sure the trigger is released.
nOTE: The first time the tool is run after changing the direction
of rotation, you may hear a click on start up. This is normal and
does not indicate a problem.
Worklight (Fig. A)

CAUTION: Do not stare into worklight. Serious eye
injury could result.
There is a worklight 7
worklight is activated when the trigger switch is depressed, and
will automatically turn off 20 seconds after the trigger switch is
released. If the trigger switch remains depressed, the worklight
will remain on.
nOTE: The worklight is for lighting the immediate work surface
and is not intended to be used as a flashlight.
Operation Modes (Fig. G)

WARNING: Do not select the operating mode when the
tool is running.

CAUTION: Never use in Rotary Drilling or Rotary
Hammering mode with a chisel bit in the bit holder.
Personal injury and damage to the the tool may result.
Your tool is equipped with a mode selector dial
mode appropriate to desired operation.
,
3 . To turn the
4 determines the direction of
located on the front of the tool. The
5
3 and
to select the