Hydraulic Pressure Test
Perform systematic pressure testing to diagnose hydraulic system performance and problems.
Hydraulic Pressure Testing Procedure
Pressure testing reveals pump output, relief valve settings, and internal leakage. Regular testing catches problems before they cause failures.
Tools Required:
Safety Notes
- • High pressure can cause injury
- • Use rated gauges and fittings
- • Stand clear during stall tests
General Steps:
Warm hydraulic system to operating temperature.
Connect pressure gauge to test port - typically on pump outlet or valve.
Record pressure at idle and full throttle with no load.
Stall each function against a solid stop and record maximum pressure.
Compare readings to manufacturer specifications.
Test pilot pressure if equipped with separate pilot circuit.
Check for pressure drop over time when holding - indicates internal leakage.
Document all readings for future comparison.
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