Wesco WS3161K, Manual

13

EN

OPERATING 

INSTRUCTIONS

NOTE:

Before using the tool, read the 

instruction book carefully.

Intended Use

This tool is intended for hammer drilling in concrete, 
brick and stone as well as for light chiseling work. It is 
also suitable for drilling without impact in wood, metal, 
ceramic and plastic.

1. ADJUSTING THE AUXILIARY HANDLE (SEE 
FIG. A)

Slide the handle onto the hammer and rotate to the desired 
working position. To clamp the auxiliary handle rotates the 
handle clockwise. To loosen the auxiliary handle rotate the 
handle anti-clockwise.

WARNING: For your personal safety we 
recommend using the auxiliary handle 

at all times.

2. INSTALLING THE DEPTH GAUGE (SEE FIG. 
B1, B2)

The depth gauge can be used to set a constant depth to 
drill (hammer). Fit the drill bit into the chuck. Depress the 
locking button (a) on the handle and insert the depth gauge 
into the handle. Slide the depth gauge until the distance 
between the depth gauge end and the drill bit end is equal 
to the depth of hole you wish to make. Release the locking 
button to tighten.

Note: Make sure that the toothed side of 
the depth gauge needs to be directed to the 
toothed side of hex hole in the handle as 
shown in the figure.

3. USING THE DUST COVER (SEE FIG. C)

Use the dust cover to prevent dust from falling over the 
tool and on yourself when performing overhead drilling 
operations. Attach the dust cover to the bit as shown in 
Fig. C.

4. INSERTING AND REMOVING DRILL BIT IN SDS
FITTING BITS (SEE FIG. D)

Clean the bit shank and apply grease before installing the 
bit. Hold the rotary grip, pull back the locking sleeve and 
insert the bits into the bit holder. Turn the bit until it latches. 
Then release the locking sleeve. Check the locking by 
pulling on the tool.
If the bit or chuck is not located well, repeat the operation 
again.

REMOVING BITS (SEE FIG. D)

Retract back the bit holder locking sleeve and pull out the bit.

WARNING: Your new Rotary Hammer 
Drill generates powerful forces to get 

your job done quickly and effectively. These 
forces may cause inferior quality SDS bits 
to break and jam in the chuck. We therefore 
recommend that only high quality SDS bits 
be used with this tool.

5

.

 ON/OFF SWITCH (SEE FIG. E)

Depress the switch to start the tool and release it to stop 
your tool.

6

. 

FUNCTION MODE SELECTION

Hammer drill function (See Fig. F1, F2)

1) For drilling concrete, masonry etc, press the lock button 
(b) and rotate the selector switch to make sign “ 

 “ point 

to the triangle. (See Fig. F1)

NOTE: You must press the selector switch 
lock button before adjusting the selector 
switch. If the selector switch cannot go into 
the required position, switch on your hammer 
a little, then adjust the selector switch again. 

2) Turn the hammer or drilling action selector switch 
pointing to the hammer action “ 

 “ position. (See Fig. 

F2)
3) You are now set up for hammer drilling into masonry/
concrete.

Drilling function (See Fig. G1, G2)

1) Press the lock button (b) and rotate the selector switch to 
make sign “  

 “ point to the triangle. (See Fig. G1)

2) Turn the hammer or drilling action selector switch 
pointing to the drilling action “   “ position. (See Fig. G2)
3) You are now set up for drilling function.

Chisel function (See Fig. H1, H2)

1) For chipping, grooving or demolition operation, press the 
lock button (b) and then rotate the selector switch make 
sign “   “ pointing to the triangle. (See Fig. H1)
2) Turn the hammer or drilling action selector switch 
pointing to the hammer action “ 

 “ position. (See Fig. 

H2)
3) You are now set up for chisel work using Chisel action.

WARNING: You must make sure that 
the selector switch is positively locked 

in chisel mode position. If not, it could cause 
a hazard.

7

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LUBRICATION MACHINE (SEE FIG. I)

The machine is grease-lubricated. A grease refill is only