Repairing a "NAIAD" Cartridge
How to Repair a "NAIAD" Cartridge with Dashpot and Oscillating Handle
- To uncover operating cartridge on urinal valves with non-sag handles, unscrew bonnet (386-010) and remove entire assembly (386-01 OK), on self-closing stops as shown on right hand drawing, first loosen and remove bonnet and oscillating lever by unscrewing bonnet with wrench.
- Either cartridge can now be removed from body by loosening cap (618-001) with a flat wrench and lifting entire cartridge from body including the dashpot.
- If leakage is occurring through spout outlet, insert 1/8"" diameter pin or pin wrench (244-025) through hole in stem and with crescent wrench remove stem nut (333-097) and all parts up to and including (1-027) seat. Inspect seat washer (244-006) and replace if necessary, next inspect seat (1-027) for nicks or water cutting and replace if necessary. If cup washer (333-040) has been sticking in dashpot, replace also.
- If cartridge has been leaking between oscillating lever and upper cap, remove stem assembly (386-008K) and spring (395-018) from sleeve (386-014) and cap (618-001) by taking out washer (319-012) from cap, take out packing arrangement which consists of (2) o-rings (319-140) with (1) leather washer (319-035) between o-rings. Grease stem lightly around packing area and put new o-rings and packing on stem using same arrangement as indicated, also lubricate 0,D, of packing.
- Place stem with spring, washer, and packing properly assembled back into cap and sleeve. Now assembly lower cartridge parts in proper relation and insert pin or pin wrench (244-025) in stem hole again and tighten nut (333-097).
- We recommend removing and replacing (1-043) gasket before cartridge is placed in valve body. Place cartridge in body and lock cartridge by tightening cap (618-001) securely, add upper cap and oscillating lever sub-assembly to cartridge.
- NOTE Fittings using (333-073K) dashpot, follow procedures on page 10 for adjustments
