Wenzhou Prance Hydraulic Equipment Co., Ltd
Compare valve repair and replacement by leakage path, spool condition, electrical compatibility, mounting interfaces, and functional test coverage.
Decide whether to repair or replace a hydraulic motor using loaded torque, leakage, shaft and bearing condition, downtime, and test evidence.
Compare hydraulic pump repair and replacement using damage scope, total recovery cost, contamination control, downtime, and meaningful acceptance testing.
Select hydraulic pump pressure instruments for range, accuracy, pulsation and test location. Includes uncertainty examples and calibration checks.
Size an electric motor for a hydraulic pump using shaft power, starting torque, duty and cooling. Includes a worked example and purchasing checklist.
Investigate radial piston motor torque ripple using pressure, speed and load records. Separate cyclic torque from control, sensor and mechanical faults.
Measure actual hydraulic motor rpm with tachometers or pulse sensors. Includes pulse conversion, low-speed limits and uncertainty checks.
Diagnose hydraulic valve subplate leaks through seal, mounting-face, clamping and port checks. Includes an evidence table and repair verification.
Compare AC and DC hydraulic solenoid coils, pull-in current, rectifiers, suppression and replacement records before selecting a compatible assembly.
Check whether a hydraulic gear pump is reversible, convertible or one-direction-only. Includes port, drainage, rotation and replacement checks.
Relate swash plate angle to theoretical displacement and delivered flow with a worked example, verified-input checklist and control-setting limits.
Build a hydraulic system maintenance schedule around duty, condition and OEM limits. Use daily-to-annual checks, escalation rules and a return-to-service record.