Kobalt 1260303, Manual

14

OPERATING INSTRUCTIONS

10. Operating the Rotary Hammer

 WARNING

•  To reduce the risk of explosion, check the utility 

lines electricity, gas or water supply line are 

hidden in the work area before any work.

•  When working at low temperatures:

The hammering mechanism begins to operate 

only when the tool has reached a minimum 

operating temperature.

Press the tip of the hammer bit briefly against 

the work surface while power on the tool. Repeat 

this procedure if necessary until reaches the 

minimum operating temperature.

Drilling 

When drilling in wood, metal, and plastic and for 

screwdriving with accessories without SDS-plus 

(e.g. drill bit with cylindrical shaft), the corresponding 

SDS-plus adapter (not included) should be used.
a.  Install the suitable adapter.

b.  Set the tool at drilling mode   , and set the  

depth gauge to the desired drilling depth.

c.  Hold the rotary hammer firmly with both hands.

d.  Support the workpiece near the drilling site. 

Clamp the workpiece securely so that the 

workpiece will not move while drilling.

e.  When drilling ferrous metal, pre-drill a smaller 

hole and lubricate drill bit with oil.

f.  Turn on the tool and start drilling.

g.  Always waiting for the tool to stop completely 

before place it on the work piece.

Hammer Drilling

 WARNING

•  Do not use bit without SDS-plus for hammer 

drilling. Bit and drill chuck would be damaged by 

hammer drilling.

•  When working with a SDS-plus bit, set the operating 

mode selector to hammer drilling mode   .

Chipping and Chiseling 

a.  Set the mode selector (C) to the chiseling mode.

b.  Install the appropriate chisel. 

c.  To adjust the head of the chisel to the desired 

angle, set the operating mode to non-working 

mode 

 and rotate the chisel by hand. Return the operating mode to the Chiseling mode .

d.  Adjust the auxiliary handle as required.

e.  Hold the tool firmly with both hands.

f.  Turn on the tool and start working.

NOTE:

 Turn the tool on and apply slight pressure on the tool so that the tool will not bounce 

around and uncontrolled. Pressing very hard on the tool will not increase the efficiency.

10a

10b

10c