Kappa-30/40/50 Diaphragm Kit - 8700.02
Part # 8700.02 is the replacement diaphragm kit for the Udor Kappa-30/40/50 diaphragm pumps. Udor recommends replacing the pump diaphragms after 500 hours of use or at season's end, whichever comes first. When diaphragms rupture the oil in the reservoir will turn a milky color.
The diaphragm kit includes two Desmopan diaphragms (0903.38), one accumulator diaphragm (0903.14) and six replacement valve o-rings (1101.27).
When rebuilding the diaphragms fallow all factory torque specifications. The accumulator diaphragm should be set to 20% of the normal operating pressure. Replacing diaphragms will require the oil to be drained and replaced with 30-weight non-detergent. Udor lube is available using part number 15.5823. The Kappa-30/40/50 pumps require 20oz of oil.
Below are downloadable technical specifications to help when rebuilding your pump.