ACCESSORIES NIRA R405

Large round black rubber seal for the handle base of Nira 4, 4B, and 5 borehole pumps.

To replace the seal, the handle must first be removed from the pump. For this, the two handle bolts must be unscrewed, and then the handle must be rotated off the piston rod joint inside the pump body. The old seal can be, for example, sliced with a knife to make it easier to remove from the handle. To facilitate installation of the new seal, a small amount of grease can be applied to its inner surface. Insert the bolts into their positions in the handle and press the new seal into the handle. Position the seal so that the handle bolts pass through it. Rotate the handle with the new seal into the piston rod joint inside the pump body and tighten the handle bolts.

This product description is an automated translation of the original Finnish description.