The Rexroth A11VO variable displacement pump is a workhorse in the hydraulic pump world. Known for its high performance, reliability and durability, the A11VO is commonly used in applications like construction equipment, presler, elevators and generators. In the post, we’ll cover the main components, features and specifications of the Rexroth A11VO pump as well as where to find its parts manual.

Rexroth Pump A11VO Type – Design And Features
The Rexroth A11VO pump uses an axial piston design with a swashplate to vary its displacement. The A11VO has several key features:
- Değişken deplasman – By adjusting the angle of the swashplate, the pump can alter its output from 20-100% of maximum displacement, allowing for efficient operation at part-load conditions.
- Closed circuit – The A11VO is a closed-circuit pump, meaning fluid is recirculated within the pump during operation. This helps keep the fluid clean.
- Charge pressure compensation – The pump automatically adjusts its displacement to compensate for variations in charge pressure, maintaining consistent flow over a wide pressure range.
- Integrated relief valve – An integrated relief valve limits the maximum system pressure, which protects components from overpressure damage.
- Excellent controllability – The A11VO provides precise control and quick response to signals from the swashplate actuator.
Rexroth Pompa – Specifications And Part Numbers
The Rexroth hydraulic pump manual A11VO comes in three main series based on displacement size:
- A11VO31 – Maximum displacement of 31 cc/rev with part numbers like A11VO31AG2BB.
- A11VO45 -Maximum displacement of 45 cc/rev with part numbers like A11VO45AA2BB.
- A11VO63 – Maximum displacement of 63 cc/rev with part numbers like A11VO63AC3BB.
Other specifications include operating pressures up to 420 çubuk, speeds up to 3000 devir/dakika, and flow rates ranging from 18-189 L/dak.
Locating The Rexroth A11VO Parts Manual
Rexroth provides a detailed parts manual for the A11VO pump that includes:
- Illustrated parts breakdowns
- Full parts lists
- Torque specifications
- Seal kits
- O-ring dimensions
You can request a hard copy of the parts manual from a Rexroth distributor or download a PDF from a resource like EPG. The parts manual allows you to properly identify all pump components for maintenance, repair and ordering replacement parts.
Common A11VO Replacement Parts
With the parts manual in hand, you can easily identify the correct Rexroth part numbers to order replacement components for repairing or rebuilding your A11VO hydraulic pump. Some common replacement parts for the Rexroth A11VO include:
- Piston sets
- Swashplate
- Gaskets
- O-rings
- Shaft seals
- Bearings
- Relief valves
- Ball checks
- Breathers
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