DeWalt DCH172 User Manual

ENGLISH
12
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Repairs
The charger and battery pack are notserviceable. There are
no serviceable parts inside the charger or batterypack.

WARNING: To assure product SAFETY and RELIABILITY,
repairs, maintenance and adjustment (including brush
inspection and replacement, when applicable) should
be performed by a DeWALT factory service center or a
DeWALT authorized service center. Always use identical
replacementparts.
Three Year Limited Warranty
DeWALT will repair or replace, without charge, any defects
due to faulty materials or workmanship for three years
from the date of purchase (two years for batteries). This
warranty does not cover part failure due to normal wear
or tool abuse. For further detail of warranty coverage and
warranty repair information, visit www.dewalt.com or call
1‑800‑4‑DeWALT (1-800-433-9258). This warranty does
not apply to accessories or damage caused where repairs
have been made or attempted by others. THIS LIMITED
WARRANTY IS GIVEN IN LIEU OF ALL OTHERS, INCLUDING
THE IMPLIED WARRANTY OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, AND EXCLUDES ALL
INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do
not allow limitations on how long an implied warranty lasts
or the exclusion or limitation of incidental or consequential
damages, so these limitations may not apply to you. This
warranty gives you specific legal rights and you may have
other rights which vary in certain states orprovinces.
In addition to the warranty DeWALT tools are covered byour:
Dust Extraction System (Fig. M)
The use of a dust extraction system is recommended to
reduce potentially harmful airborne dust and to prolong tool
and accessorylife.
Consult your dealer for further information on suitable dust
extractionsystems.
Maximum Recommended Capacities
RPM 0–1060
BPM 4980
Bits, Masonry Drilling 5/32"–3/8" (optimum drilling range)
Accessories

WARNING: Since accessories, other than those offered
by DeWALT, have not been tested with this product, use
of such accessories with this tool could be hazardous.
To reduce the risk of injury, only DeWALT recommended
accessories should be used with thisproduct.
Recommended accessories for use with your tool are available
at extra cost from your local dealer or authorized service
center. If you need assistance in locating any accessory, please
contact DeWALT call 1‑800‑4‑DeWALT (1-800-433-9258) or
visit our website: www.dewalt.com.
Cleaning

WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1approved eye
protection when performingthisprocedure.

WARNING: Never use solvents or other harsh
chemicals for cleaning the non‑metallic parts of the
tool. These chemicals may weaken the plastic materials
used in these parts. Use a cloth dampened only with
water and mild soap. Never let any liquid get inside the
tool; never immerse any part of the tool into aliquid.
MAINTENANCE

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start‑up can causeinjury.
Work that is apt to splinter should be backed up with a block
ofwood.
Drilling in Masonry
When drilling in masonry, use carbide‑tipped bits rated for
percussion drilling and be certain that the bits are sharp. Use
a constant and firm force on the tool to drill most effectively.
A smooth, even flow of dust indicates the proper drillingrate.
Hammerdrill Operation (Fig. I)
1. Push the mode selector lever
5
to the drill bit and
hammer symbol
17
.
2. When drilling, use just enough force on the hammer
to keep it from bouncing excessively or “rising” off the
bit. Too much force will cause slower drilling speeds,
overheating, and a lower drillingrate.
3. Drill straight, keeping the bit at a right angle to the work.
Do not exert side pressure on the bit when drilling as
this will cause clogging of the bit flutes and a slower
drillingspeed.
4. When drilling deep holes, if the hammer speed starts to
drop off, pull the bit partially out of the hole with the tool
still running to help clear debris from thehole.
5. For masonry, use carbide‑tipped bits or masonry
bits. A smooth even flow of dust indicates the proper
drillingrate.

DeWalt DCH172 Specifications

General

Brand	DeWalt
Model	DCH172
Category	Rotary Hammer
Language	English