System design
Hydraulic motors
The technical data and the instructions to select the correct motor size are in the
product manual of each motor series.
The items that are important when you select the motors for your system are:
• The wheel load, radius and offset:
• These items give the minimum frame size for the motors.
• The required tractive force:
• The pressure available from the hydraulics and the radius of the wheel give the
necessary total displacement for the hydraulic motors. The necessary motor
displacement is the total displacement divided by two (2WD system) or by four
(4WD system).
• Maximum speed when the drive is in use:
• The available flow from the pump and the flow capacity of the selected valve
gives the maximum flow of the system. The 2-speed motor option makes it
possible to use the partial displacement of the motor. Thus, you can use the
drive in higher speed.
Guidelines to select the motors for the On-Demand Drive System:
• Necessary:
• Mechanical freewheeling
• Recommended:
• 2-speed function
• Possible to use also 1-speed motors
• Optional:
• Drum brake / disc brake
• Not compatible:
• Internal freewheeling valve
• Not compatible:
• Spring-loaded multidisc brake.
We recommend to use B200-series 2-speed motors for the On-Demand Drive
System. Please contact the manufacturer or their representative who will help you to
select the most applicable motor model for your application.
4
4.1
System design
Product manual
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