End play in a self-contained dispenser pump can be taken up by removing the internal gear pump head and:

In a self-contained dispenser pump, end play refers to the axial movement of gears within the pump. Proper control of this movement is essential to maintain the performance and efficiency of the pump.

When addressing end play, using a thinner gasket allows the internal gear pump head to sit closer to the driving gears. This reduction in thickness effectively minimizes the space between the components, reducing the allowance for movement or play. Consequently, the gears remain aligned, reducing wear and ensuring optimal pumping performance.

This approach is straightforward and directly impacts the alignment and tightness of the pump assembly, making it a practical solution for managing end play. Adjustments through gasket thickness are commonly employed in mechanical systems to achieve the necessary tolerances for effective operation.

Utilizing larger O-rings, adding more gasket material, or replacing O-rings with smaller ones can lead to issues such as an improper seal or increased friction, which would not resolve the problem of end play effectively.