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My TapeTech Loading Pump is leaking joint compound around the brass hex piece and the piston rod at the top of my pump. How can I repair this leak?

Generally, this leak occurs when the U-cup (part #700005) on the 72TT or 73TT pump is worn. The U-cup is a rubber seal that keeps the joint compound from leaking around the piston rod. To repair it, remove the brass gland and insert the U-cup. We recommend that that you insert a new bushing liner (#700029) at the same time as replacing the U-cup. TapeTech 502H is a convenient kit that contains all the necessary parts that you will need to make this repair.