Katadyn Spectra Watermakers Catalina 340R, Installation And Operating Manual

Page: 36 / 73

36
Leaking Fittings
The system has eight high pressure fittings, two on each cylinder on the Clark Pump, two on
the pressure vessel end caps, and two 90
- degree elbows on the back of the Clark Pump. As the
compression fitting is tightened, it compresses a ferrule onto the stainless tubing, fixing the
ferrule permanently to the tube and holding the compression nut captive.
The body of the fitting seals to the underlying component with an O - ring. On the Clark Pump
cylinders and the end caps this O - ring is compressed by tightening the entire fitting. The O -
rings on the 90 - degree fittings on the back of the Clark Pump have captive nuts and washers,
which compress the O - rings without turning the entire fitting.
If a tube fitting leaks it can sometimes be resealed by just tightening. You must use two
wrenches, a 13/16
- inch wrench to hold the base, and a 7/8 - inch wrench to turn the
compression nut. The 13/16 - inch wrench will need to be thin so as not to interfere with the
compression nut. If this doesn ’ t work, disassemble the fitting, grease liberally with silicone
grease (the ferrule and the threads) and re - tighten firmly.
The base O - rings should be gently compressed to achieve a good seal, and may be damaged
by overtightening.
Stainless Fitting Hex Nut
Connector O - RING
Nickel - Bronze High Pressure Elbow
Nickel - Bronze High Pressure Straight Fitting
Ferrule
Maintenance Cont.