CAUTION
• Do not disassemble the Taper-Ring except the O-ring changing.
• Make certain that the Taper Ring is firmly tightened. If the Taper Ring is loose water and air leakage could occur.
11. Non-Retraction Valve
A Non-Retraction Valve is equipped in the Coupling Joint, which shuts off the water retraction right at the
handpiece head, to prevent oral fluids sucked into the water line.
NSKCoupling
1) Remove the back-end gasket.
2) Pull and remove the Water Tube, and replace the Non-Retraction Valve.
* Non-Retraction Valve: Order Code P401054
12. Warranty
NSK warrants the handpiece against production errors and material defects. NSK reserves the right to analyze and determine the cause of any
problem. Warranty is voided should the handpiece be not used correctly. Replacement parts are available for seven years beyond discontinuation of
the model.
12
Gasket
Water Pipe
Water Pipe
Non-Retraction Valve
Fig. 11