![Three minutes to learn how to adjust the main relief valve when excavator is powerless, the machine problem is solved! Three minutes to learn how to adjust the main relief valve when excavator is powerless, the machine problem is solved!](https://img.waimaoniu.net/774/774-201911061741569748.jpg)
Three minutes to learn how to adjust the main relief valve when excavator is powerless, the machine problem is solved!
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Allison 1000 Oversize Control Main Relief Valve Number 37000-19. Fits 2000–2015 units only. - PATC - TransmissionCenter.net
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