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Graco 15K029 Packing Nut 85-115cc

The Graco 15K029 Packing Nut (85‑115 cc) secures the packing assembly in your pump, ensuring a tight seal and preventing fluid leakage in moderate‑capacity applications.

  • Packing nut for fluid seal retention
  • Sized specifically for 85‑115 cc models
  • OEM quality for reliable sealing

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Graco 15K029 Packing Nut 85‑115 cc – Product Overview

Compatible Machines

  • Graco pump assemblies with packing size designation 85‑115 cc
  • Graco mid‑capacity airless sprayers specifying this nut size

The Graco 15K029 Packing Nut (85‑115 cc) is a crucial component in the sealing system of your Graco pump. It retains the packing around the shaft or piston, ensuring fluid cannot bypass the seal under pressure. A properly seated packing nut supports efficient operation and minimizes the risk of leakage.

Key Feature Description
Exact OEM Size Fits 85‑115 cc applications without compromise.
High‑Strength Material Resists deformation under pressure.
Sealing Integrity Keeps fluid contained; prevents leaks.
Service Friendly Allowing fast replacement during maintenance.

Installation & Usage Tips

  • Relieve pump pressure before removing the old nut.
  • Inspect the packing and shaft for wear when nut is removed.
  • Install the new nut and tighten to the specified torque without over‑compressing the packing.
  • Monitor for leaks after startup and adjust if needed.

Frequently Asked Questions

A loose nut can allow fluid leakage, reduce pressure, and cause packing wear or failure.

It’s best to replace the nut when doing a packing service to maintain proper seal and torque specification.

Inspect during routine maintenance or if you notice a drop in pressure or fluid seepage around the shaft.

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