# One Small Thing Stopped an 85-Tonne Giant. How Did We Find It? Hitachi 870

> Video: Hitachi ZX870-3 excavator at a gravel pit: installing three rebuilt pumps, cleaning metal debris from the tank and the filter bypass, filtering over 1,000 litres of oil and tracking down pump control errors – a chafed wiring harness.

[▶ One Small Thing Stopped an 85-Tonne Giant. How Did We Find It? Hitachi 870](https://www.youtube.com/watch?v=R6O7l5AZMBw)

Hitachi ZX870-3 excavator at a gravel pit: installing three rebuilt pumps, cleaning metal debris from the tank and the filter bypass, filtering over 1,000 litres of oil and tracking down pump control errors – a chafed wiring harness.

[**Read the full repair report →**](https://wibako.com/about-us/news/833-one-small-thing-stopped-an-85-tonne-giant-installing-pumps-in-a-hitachi-zx870)

Published: 2026-06-26

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Source: https://wibako.com/about-us/video/832-one-small-thing-stopped-an-85-tonne-giant-how-did-we-find-it-hitachi-870
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