BRASSELER USA NL4500 Operation Manual page 16

Chuck cleaning
Clean Push Button chuck once a week.
1) Mount the arrow-head spray nozzle tip into the spray can port.
2) Lubricate the chuck for 1 to 2 seconds directly through the bur insertion
hole. (Fig. 9)
3) Lubricate handpiece by using NSK PANA SPRAY Plus (or other approved
handpiece lubricant)
(Fig. 8) or an automatic handpiece cleaning and lubrication system.
Caution
• If the chuck is not regularly cleaned the chuck grip may be weakened and the bur may be accidentally released
while in operation.
An automatic handpiece cleaning and lubrication system
When using an automatic handpiece cleaning and lubrication system, refer to the system instructions.
Hole for bur attachment
Fig. 9