Start with the symptom,
not the part number.
A part number gets you a price. A symptom gets your machine back to work. Six entry points, each with the test that decides it, the parts that fix it, and the price of the alternative.
FL-WS-00rev 2024-11-25source: FLUTEK catalogue
The readings that decide it
| Reading | Where | Expected | Recorded |
|---|---|---|---|
| Standby pressure | TP1 | catalogue | |
| Stall pressure | TP1 | catalogue | |
| Case drain | TP3 | ≤ 8–10 L/min | |
| Cooler drop | — | ≥ 10 °C |
SwingSwing is slow, or will not hold a loadSwing relief pressure set low, or relief valve leakinghighTravelThe machine tracks off to one sideOne travel motor is wornhighTravelTravel is weak, or dies on a gradeTwo-speed solenoid or displacement control stuck in high speedhighPump and pressureThe pump growls, whines or knocksCavitation: suction strainer clogged or air ingressmediumPump and pressurePressure drops under load, everything slowsMain relief valve stuck partially openhighHeatHydraulic oil runs hotInternal leakage in motors or pump (worn groups)medium