NSK Ti-Max X-SG20L Mode D'emploi page 20

6-3 Simultaneous External and Internal Irrigation
1) Connect one end of the Y-Connector to the External Spray Nozzle and the other end
into the Internal Spray Nozzle. (Refer to "6-1, 6-2")
2) Connect the Irrigation Tube to the Y-Connector firmly.(Fig.9)
Fig. 9
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