A: Every RITO refurbished unit must pass a rigorous factory bench test where flow rates and pressures are verified across the entire RPM range. We check that the case drain leakage remains well within OEM tolerances when operating under maximum working pressures.
A: You must fill the pump housing completely with fresh, filtered hydraulic oil through the top venting port before cranking the engine. Running the internal rotating groups dry for even ten seconds will permanently score the bimetallic valve plates and ruin the rebuild.
A: Verify your factory parts manual specifies number 708-2L-21450. Since older machines may have modified line adapters, providing our engineering support team with clear photos of the rear port flange layout avoids installation errors.
A: By utilizing high-grade replacement bimetallic valve surfaces and premium Viton seal kits, the internal tolerances resist heat deformation, keeping your excavator's multi-function speed smooth and responsive even during long, hot summer shifts.






















