AR 70 Diaphragm Kit - AR43241
Part # AR43241 is the replacement diaphragm kit for the AR70 diaphragm pump. AR recommends changing the diaphragms every 500 hours or three months, whichever comes first.
Part # AR43241 will also rebuild the older Hypro D70 pump.
The kit includes two replacement Desmopan diaphragms, four replacement valve o-rings and replacement accumulator diaphragm.
When rebuilding the pump diaphragms follow all factory torque specifications. Accumulator diaphragm should be set to 20% of pump operating pressure. Replacing diaphragms will require new oil. Replace with 30 weight non-detergent.