FAQ: How To Repack Graco 495st Paint Sprayer?

What is repacking a paint sprayer?

Daily maintenance of your paint sprayers means, first and foremost, cleanup after a paint job. Paint is abrasive, and your sprayer’s parts will degenerate with use. So be prepared to replace them. The round polyethylene seals are called “packing,” and replacing them is known as “repacking.”

Why does my Graco spray gun leak?

The spray gun is leaking from the Nozzle This occurs when the Needle Packing Nut is too tight, compressing the Needle Packing too tightly around the Needle. This occurs when the Needle Packing nut is too loose. Remember that the needle packing must be tight enough to prevent any leakage of paint material.

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