How to Rebuild an Ingersoll Rand Rotary Screw Inlet Valve | UP6 15-30 HP

Are you working on an Ingersoll Rand UP6 series rotary screw compressor that's failing to load, short-cycling, or having blowback issues out of the intake? It's likely time to rebuild the inlet/unloader valve. In this video, we do a complete, step-by-step bench rebuild of an inlet valve on an Ingersoll Rand UP6-30 (30 HP) air compressor. I walk you through the entire process, including a breakdown of the standard OEM rebuild kit. If you've ever opened one of these kits and wondered what that random, small hex head bolt is actually for—I show you exactly how to use it as a service tool to effortlessly pull and remove the internal piston without damaging the bore. What we cover in this service breakdown: 1. Safe removal and bench teardown of the valve assembly 2. Cleaning and inspecting the internal housing 3. The Piston Removal Trick: Utilizing the random hex head bolt in the kit 4. Replacing all o-rings, seals, and springs from the rebuild kit 5. Reassembly, lubrication, and reinstallation tips Stop struggling with stuck pistons or marring critical sealing surfaces. Do the job right the first time with this fundamentalist service walkthrough. If you found this technical guide helpful, make sure to hit the Like button, leave a comment if you have any questions about the UP6 series, and Subscribe for more real-world industrial compressor repair and diagnostic tutorials! #IngersollRand #AirCompressor #RotaryScrew #InletValve #CompressorRepair #FieldService #MaintenanceTechnician #IndustrialMaintenance #UP630