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Diaphragm Vacuum & Pressure Pump Information

VF3-220 - Oil free diaphragm vacuum/pressure pump diagram, troubleshooting guide, and spare parts information.

Troubleshooting Guide

Possible ReasonPressureVacuumExcessive NoiseOverheatingWon't Start
Dirty filterX XX X 
Dirty mufflerX XX X 
Dirty valvesX XXXX 
Bent valvesX XX   
Low voltageX XX XX
Wrong voltage     XX
Regulators set too high XX  X 
Regulators set too lowX  X   

VF3‐220 diagram ‐ exploded view[click to enlarge]

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