ivory SL611C Instructions Pour L'utilisation page 60

CAUTION!
Incorrect or inadequate spindle cleaning can cause the spindle to
loosen and accidentally release the bur during functioning.
CAUTION!
After lubricating, hold the handpiece with the chuck facing down.
Operate the handpiece for 30 seconds to expel any excess oil. If you
notice any dirt coming out, repeat the entire cleaning and lubrication
process.
58
Eng
3) Apply the adapter to the back of the
handpiece. Hold the handpiece in place
and spray for about 5 seconds.
4) Replace the head in the handpiece.