Bosch Rexroth A6VM variable hydraulic motor for the Manitou Telehandler 688343 213748 585207 585209 731762 208700 228872 585210

The A6VM is a variable displacement axial piston motor built on a bent-axis design. Unlike fixed-displacement motors, which deliver a constant torque-to-speed ratio, the A6VM can change its swept volume on the fly. That means a single motor can produce high torque at low speed (for climbing, pushing into a pile, or crawling with a full bucket) and then automatically shift toward high speed and lower torque once the load eases off, similar to how a car's transmission changes gear ratios — except here it happens hydraulically and continuously, with no clutch or gear change involved.

In a Manitou telehandler, this motor is the "output" half of a closed hydrostatic transmission. A variable displacement pump (often an A4VG or similar Rexroth unit) driven by the diesel engine sends pressurized oil to the A6VM, which is coupled to the drive axle. The operator's foot pedal and the machine's electronic controller adjust both pump flow and motor displacement together, giving smooth, infinitely variable ground speed without a torque converter or mechanical gearbox doing the heavy lifting.

Why Manitou Uses the A6VM in Its Telehandler Lineup

Manitou's mid-size and larger telehandlers — think MT and MRT series machines working construction sites, quarries, and farms — rely on hydrostatic drive rather than a conventional torque converter transmission. There are a few practical reasons the A6VM fits that application so well.

Torque Where It's Needed, Speed Where It Isn't

A telehandler spends a lot of its life doing two very different jobs: creeping forward at walking pace with a pallet of block on the forks, then driving at 25+ km/h between stops with nothing on the boom. A fixed motor would force a compromise between those extremes. The A6VM's variable displacement lets the machine deliver maximum torque at minimum speed for precise, controlled loading, then swing toward higher speed once the pump and motor sense reduced pressure demand.

Smooth, Stepless Control

Because displacement changes are hydraulic and continuous, there's no shift shock. Operators moving a load at height on an extended boom benefit enormously from this — a jerky speed change transmitted up a fully extended telescopic boom can set a load swinging, which is exactly what you don't want forty feet in the air.

Compact Packaging

Telehandlers are tight on space around the axle and chassis rails. The bent-axis A6VM design packages a wide displacement range into a relatively small housing compared to swash-plate alternatives of similar output, which matters when Manitou engineers are routing driveshafts, brake lines, and steering components through the same chassis real estate.

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Q1:Which Manitou telehandler models use the A6VM?

A1: Rexroth A6VM motors (or close variants in the A6VM/A2FM family) appear across Manitou's hydrostatic-drive MT and MRT telehandler ranges, though exact motor sizing depends on the specific model, lift capacity, and axle configuration. Always confirm the exact part number against the machine's parts manual or serial-number-specific documentation, since displacement sizes vary between models and production years.

Q2:How do I know if my A6VM motor is failing versus another drivetrain component?

A2: Start with case drain flow measurement and system pressure testing rather than assuming the motor is at fault. Many "motor" symptoms — sluggish pulling power, inconsistent speed, overheating — trace back to the charge pump, filters, or relief valves instead.

Q3:What is the price and delivery time of the Rexroth A6VM motor for the Manitou Telehandler？

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4:How to purchase a Rexroth A6VM motor for the Manitou Telehandler?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.