4 
C. 
Important Instructions and Warning on ULTIAMTE XL-K/D
17. DISCONNECT TOOLS before servicing; when changing accessories, such as blades, bits, 
cutters, and like.
18. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off position 
before plugging in.
19. USE RECOMMENDED ACCESSORIES. Consult the owner's manual for recommended 
accessories. The use of improper accessories may cause risk of injury to persons.
20. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don't leave tool until it 
comes to a complete stop.
21. For recommended operating speed for various applications, please follow the instructions of 
bur manufacturers.
22. The system functions normally in the environment where the temperature is at 0-40°C, 
humidity at 10-85% RH and no moisture condensation in the Unit. Use at outside of these 
limits may cause malfunction.
23. Store the system in the place where the temperature is at -10-60°C, humidity at 10-85% RH, 
atmospheric pressure at 500-1060hPa, and the system is not subject to air with dust, sulfur, 
or salinity.
24. Severe shock – Eg. Dropping Control Unit, or the Micromoto – may cause damage.
25. Do not turn the bur lock Chuck Control Ring while the handpiece is rotating.
26. Do not rotate the motor when the bur lock Chuck Control Ring is at OPEN position, or a bur 
is not mounted in the chuck. It may cause the motor/handpiece disconnection or sudden 
heat generation.
27. Activation of Circuit Breaker means too much load is applied to the motor beyond the 
capacity the motor takes. This circuit breaker is designed to protect the motor, but it is 
desired to perform the grinding work without activating the circuit breaker.
28. Care should be taken not to drop micromotor handpiece on floor or hard work surface in 
order to avoid damage caused by impact shock.
29. Do not disassemble or alter the product by yourself.
30. Be careful not to be injured by the grinder or bur.
31. Be sure to replace fuse with the correct type and rating.
1. No lubrication is required to either motor or handpiece because ball bearings impregnated 
with grease in both motor and handpiece.
2. Only use with original power supply cord. In case of damage, contact NSK / Nakanishi 
servicing center.
3. Equipment to be sent back to manufacturer for servicing / repair.