17
EN DE FR ES IT PT
9. Replacing the O-rings
(Z800L/Z800/Z900L/Z900)
Replace the O-rings if water is present in the exhaust air line. This is an indication of possible water leakage
within the coupling. ALWAYS change the complete set of O-rings.
1) Loosen and remove the taper ring at the rear of the handpiece (Fig. 11).
2) Gently remove each O-ring by hand (Fig. 12).
3) Insert the complete set of new O-rings in the correct grooves.
4) Firmly tighten the taper rin
g.
* Refer to Spare Parts List to identify the correct parts.
CAUTION
Ř Do not force the new replacement O-ring with excessive pressure.
Ř When inserting new O-rings, make sure they are inserted in the correct grooves.
Ř Make certain that the taper ring is firmly tightened. If the taper ring is loose water and air leakage
could occur.
Fig. 11
Fig. 12
Taper Ring
O-ring
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