pumps up to 5,000 psi .. good for opening up cap tubes and fuel injectorsThere's a tool that you attach to a cap tube and push it out with thousands of psi with oil or solvent. It's pressurized with a screw down oil pump or hand driven hydraulic pump.
It was in the same refrigeration and HVAC book that talked about cutting open a hermetic compressor for repair.
here's the Snap-on refrigerant ID someone was asking about
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