Dell DCH172, Instruction Manual

ENglIsh

32

OPERATION

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.

Utility Hook (Fig. E)

WARNING: To reduce the risk of serious personal 
injury, ONLY use the tool’s ultilty hook to hang the 
tool from a work belt. DO NOT use the ultilty hook 
for tethering or securing the tool to a person or 
object during use. DO NOT suspend tool overhead 
or suspend objects from the ultilty hook. 

WARNING: To reduce the risk of serious personal 
injury, ensure the screw holding the ultilty hook 
is secure.

IMpoRTaNT: 

When attaching or replacing the ultilty 

hook 

 11 

, use only the screw 

 13 

 that is provided. Be sure to 

securely tighten the screw.
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.

Side Handle and Depth Rod (Fig. D)

WARNING: 

To reduce the risk of personal injury, 

ALWAYS

 operate the tool with the side handle properly 

installed. Failure to do so may result in the side handle 
slipping during tool operation and subsequent loss of 
control. Hold tool with both hands to maximize control.

The side handle 

 1 

 clamps to the front of the gear case and 

may be rotated 360˚ to permit right‑ or left‑hand use. 
The side handle clamps to the collar 

 18 

  and has 

12 tightening locations. The side handle can be tightened 
by rotating the grip of the side handle clockwise. The side 
handle must be tightened sufficiently to resist the twisting 
action of the tool if the accessory bind or stall. Be sure you 
moved the side handle against the end of the collar end to 
have the clamping piece fully engaged. 

To Adjust the Depth Rod (Fig. A)

Loosen the side handle 

 1 

 and move the depth rod 

 2 

 so 

that the distance between the end of the rod and the end of 
the bit equals the desired drilling depth. When drilling with 
depth rod, stop when end of rod reaches surface of material.

Worklight (Fig. K)

CAUTION: Do not stare into worklight.

 Serious eye 

injury could result.

There is a worklight 

 7 

 located on the front of the tool. The 

worklight is activated when the trigger switch is depressed, 

Forward/Reverse Control Button (Fig. A, H)

A forward/reverse control button 

 4 

 determines the direction 

of bit rotation and also serves as a lock‑off button.

To select forward rotation,

 release the trigger switch 

 3 

and 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 center 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.

Trigger Switch (Fig. A)

To turn the tool on, squeeze the trigger switch 

 3 

. To turn the 

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.

Proper Hand Position (Fig. G)

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 

 6 

, with the other hand on the side handle 

 1 

.

Installing and Removing the Battery Pack 
(Fig. F)

NoTE:

 For best results, make sure your battery pack is 

fully charged.
To install the battery pack 

 7 

 into the tool handle, align the 

battery pack with the rails inside the tool’s handle and slide 
it into the handle until the battery pack is firmly seated in the 
tool and ensure that it does not disengage.
To remove the battery pack from the tool, press the release 
button 

 9 

 and firmly pull the battery pack out of the tool 

handle. Insert it into the charger as described in the charger 
section of this manual.

regarding working with tools in and around machinery 
and “at height”. A lanyard‑ready attachment kit may only 
be added to certain models and must be installed by an 
authorized service center.