KRESS KUC61, Safety And Operating Manual

Lithium-Ion Brushless Rotary Hammer

KUC61 KUC61.2 KUC61.9

10

9. OVERLOAD PROTECTION

When overloaded, the motor comes to a stop. Relieve 

the load on the machine immediately and allow cooling 

for approx. 30 seconds at the highest no-load speed.

10. TEMPERATURE DEPENDENT OVERLOAD 

PROTECTION

When using as intended for, the power tool cannot be 

subject to overload. When the load is too high or the 

allowable battery temperature of 75 °C is exceeded, the 

electronic control switches off the power tool until the 

temperature is in the optimum temperature range again. 

11. PROTECTION AGAINST DEEP DISCHARGING

The Li-ion battery is protected against deep 

discharging by the “Discharging Protection System”. 

When the battery is empty, the machine is switched off 

by means of a protective circuit: The inserted tool no 

longer rotates. 

WORKING HINTS FOR 

YOUR TOOL

If your power tool becomes over heated, set the speed 

to maximum and run no load for 2-3 minutes to cool 

the motor. SDS-plus tungsten carbide drill bits should 

always be used for concrete and masonry. 

When drilling in metal, only use HSS drill bits in good 

condition. Where possible use a pilot hole before 

drilling a large diameter hole.

PROBLEM SOLUTION 

1. REASONS FOR DIFFERENT CHARGING TIMES

Your charge time can be affected by many reasons 

which are not defects in your product. If the battery 

pack is only partly discharged it may be re-charged 

in less than 1 hour. If the battery pack and ambient 

temperature are very cold then re-charging may take 

1-1.5 hours. If the battery pack is very hot it will not re-

charge because the internal temperature safety cutout 

will prevent it. If the battery pack is very hot you must 

remove your battery pack from the charger and allow 

your battery pack to cool first to ambient temperature 

and then recharging can be started. If you charge a 

second battery pack immediately after the first then the 

charger can be overheated. Always allow at least 15 

minutes rest between battery pack charging.  

2. REASONS FOR DIFFERENT BATTERY PACK 

WORKING TIMES

Charging time problems, having not used a battery 

pack for a prolonged time will reduce the battery pack 

working time. This can be corrected after several 

charge and discharge operations by charging & 

working with your drill. Heavy working conditions such 

as large screws into hard wood will use up the battery 

pack energy faster than lighter working conditions. Do 

not re-charge your battery pack below 0

o

C and above 

30

o

C as this will affect performance.  

MAINTENANCE

REMOVE THE BATTERY PACK FROM THE TOOL 

BEFORE CARRYING OUT ANY ADJUSTMENT, 

SERVICING OR MAINTENANCE.

Your power tool requires no additional lubrication or 

maintenance. There are no user serviceable parts in 

your power tool. Never use water or chemical cleaners 

to clean your power tool. Wipe clean with a dry cloth. 

Always store your power tool in a dry place. Keep the 

motor ventilation slots clean. Keep all working controls 

free of dust. Occasionally you may see sparks through 

the ventilation slots. This is normal and will not damage 

your power tool.   

Positec Australia Pty Limited

10 Corporate Blvd Bayswater, VIC 3153,  Australia