Routine maintenance as outlined in the A10VSO Repair Guide includes several critical checks:
The A10V series is categorized by size and series (e.g., Series 31, 52, or 53), which dictates specific pressure ratings and dimensions. Standard Specifications (Series 31/52) Nominal Pressure ( pnomp sub n o m end-sub ) 250–280 bar (3600–4000 psi) Maximum Pressure ( pmaxp sub m a x end-sub ) 315–350 bar (4600–5100 psi) Suction Pressure ( pSminp sub cap S m i n end-sub ) 0.8 bar absolute Cleanliness Requirement ISO 4406 20/18/15 Axial piston variable pump A10VSO Series 31 - Bosch Rexroth Rexroth Pump Service Manual A10v
This section covers essential safety protocols: system depressurization, lockout/tagout procedures, and the dangers of high-pressure oil injection injuries. It also lists model codes (e.g., A10VSO 71 DFR1 /31R-PPA12N00), helping you identify your exact pump version before service. Routine maintenance as outlined in the A10VSO Repair
The manual details several core features of the pump's design and operation: Variable Displacement The manual details several core features of the
Before diving into service procedures, it is vital to understand the mechanics of the A10V. As a variable displacement axial piston pump, its primary function is to convert mechanical energy (torque from an engine or electric motor) into hydraulic energy (flow and pressure).
You’ll find viscosity ranges (12–100 cSt), maximum pressure ratings (280 bar continuous, 350 bar peak), minimum suction pressure, noise levels, and speed limits. Always cross-reference your pump’s serial number with these tables.
Each control option (pressure compensator, load sensing, hydraulic remote, electric proportional) has a dedicated subsection with adjustment screw locations, spring rates, and test port connection points. For example, the DFR1 load-sensing control has separate adjustments for LS differential pressure (typically 14-22 bar) and maximum pressure.