BRASSELER USA NL4500, Operation Manual

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NL4500
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. 10)
2) Gently remove each O-ring by hand. (Fig. 11)
3) Insert the complete set of new O-rings in the correct grooves.
4) Replace and firmly tighten the taper ring.
*Refer to Spare Parts List to identify the correct parts.
8. Replacing the O-rings
Taper Ring
O-ring
Fig. 10
Fig. 11
• Do not force the new replacement O-ring with excessive pressure.
• When inserting new O-rings, make sure they are inserted in the correct grooves.
• Make certain that the taper ring is firmly tightened. If the taper ring is loose
water and air leakage could occur.
Caution