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The cut-out pressure should be in accordance with the pressure setting of the piece number being used. (Common cut-out pressures are between 105-125 psi.) With the engine still running, make a series of brake applications to reduce the air pressure and observe at what pressure the governor cuts-in the compressor.
If push-lock hose ends are used, hose clamps are highly. recommended. The pressure line from the pump to the steering gear should be a minimum #6 (3/8â ID) line. This hose. must have a minimum 2000 psi working pressure with a 6000 psi burst rating. The return line from the. steering gear to the reservoir should be a minimum #6 (3/8â ID) line. This hose should have a minimum. 100 psi working pressure with a 300 psi burst rating. The pumpâs performance can be best determined by a flow-pressure test which requires specialized.