Travel alarm cuts in and out with slow travel: wiring, pressure switch, or controller input?
Short Answer
If slow travel happens together with an intermittent travel alarm, the fault may be in the travel pressure switch, connector, harness, ground, or monitor/controller input instead of the hydraulic motor itself. JIAJUE treats this as an electrical-hydraulic diagnosis and checks the input signal before quoting a major hydraulic assembly.
What To Check
- Watch whether travel speed changes exactly when the travel alarm begins or stops sounding.
- Check pressure-switch power, ground, signal wire, under-cab connectors, harness rub points, and monitor input status.
- Provide connector photos, machine serial number, old switch marking, and any fault codes before ordering wiring or sensor parts.
Related JIAJUE Parts
Send the machine model, serial number, old part label, pressure readings, and clear photos before ordering so JIAJUE PARTS can help reduce wrong-fitment risk.
Source Record
This question was selected from a current search-visible industry discussion for the keyword Komatsu PC200-8 travel alarm intermittent slow travel. The answer is rewritten from JIAJUE parts-matching and sourcing practice, not copied from the source page.
