B.A. International BA Optima BA175E Operación Manual página 6

5. Insertion & Removal of the Bur
5-1 To Insert the Bur
1) Turn the Bur Lock Ring in the direction of the "
clicks. (Fig.2)
2) Insert the bur fully into the chuck then turn the Bur Lock Ring in the
direction of the mark " " until it clicks.
3) Test that the bur is secure by gently pulling and pushing the bur.
5-2 To Remove the Bur
Turn the Bur Lock Ring in the direction of the "
then remove the bur.
CAUTION
• M ake sure to align the mark with " " mark. If those marks are
not completely aligned, it may cause handpiece overheating or
patient burn injuries.
• A lways insert the bur fully into the chuck. Insufficient insertion of
the bur could cause premature failure of the bearing.
• R emove the bur only after the handpiece has completely stopped
rotating.
• D o not rotate the handpiece when the Bur Lock Ring is turned to
"
" mark until it
• A lways keep the bur shank clean.
• E ntry of debris into the chuck, via the bur shank, could cause bur
rotation slip and also prevent the bur from being securely located
in the chuck.
• D o not exceed the bur speed recommended by the bur
manufacturer.
" mark until it clicks
• D o not exceed maximum bur length recommended by the
handpiece manufacturer.
• D o not apply excess pressure to the bur as it may break or bend or
become difficult to remove.
• D O NOT use burs with problems listed below as the bur may break
or disengage from the chuck.
- Bent, deformed, anisomerous (worn), rusted, broken, deficient
bur.
- Bur which is cracked on the edge or axis.
- Non-ISO standard, or tampered bur.
" (OPEN) position or a bur is not inserted.
3