Start by disassembling the pump to begin sanitation or maintenance activity. First, remove the suction manifold by detaching the two tri-clamp connections at the bottom of the product chambers. Please note; the check valves are attached to the bottom manifold so exercise caution while removing the manifold to prevent loss of the check balls or ball stops.
[VIDEO OF BOTTOM MANIFOLD REMOVAL]
Next, remove the check balls and ball stops from the suction manifold. This is a good time to inspect the Teflon check balls for any wear or damage.
[CHECK BALL REMOVAL AND INSPECTION]
Next, remove the discharge manifold by detaching the two tri-clamp connections at the top of the product chambers. This is also a good time to remove and inspect the discharge check valve ball stops. Please note; the discharge check valves are connected to the product chamber and will remain intact when the discharge manifold is removed.
[VIDEO OF TOP MANIFOLD AND BALL STOP REMOVAL]
Next, remove the product chambers one side at a time by loosening the product chamber clamps. These clamps can be gently tapped off using a rubber mallet if the seal is too tight to loosen by hand. Do not use a hammer on these clamps.
[VIDEO OF PRODUCT CHAMBER REMOVAL]
Next, carefully remove the check balls from the top of the product chambers. This is a good time to inspect the Teflon check balls for wear or damage.
[VIDEO OF DISCHARGE CHECK BALL BEING REMOVED AND INSPECTED]
Next, remove the diaphragm assembly by turning one diaphragm counterclockwise. You should feel one side loosen and begin to thread off of the shaft. Please note: Two ¼” wrenches can be used on the outer pistons if the diaphragms cannot be loosened by hand.
[VIDEO OF LOOSENING DIAPHRAGM ASSEMBLY]
One side of the diaphragm assembly will remain attached to the shaft. You may need to use a soft jaw vice on the open end of the shaft to remove the remaining diaphragm assembly. This action will need to be completed whenever replacing a diaphragm.
[VIDEO OF SHAFT BEING REMOVED FROM SECOND DIAPHRAGM]
The components are now ready to be set aside or cleaned while the centerblock is rebuilt.