Drive Motors; Mowing Motors - Friendly Robotics robomower RL350 Service Manual

5.4.4 Drive Motor
This test checks the operation of the
drive motors. This test should be
performed when the Robomow is
securely propped up on a stand so that
the drive wheels will not touch the
ground. The front wheel must be firmly
on the ground.
A. Insure the drive wheels are off the ground.
B. Select Drive Motors in the 'Service' menu.
C. Press the GO button for testing the drive motors – the drive motors will run forward then
reverse.
D. The manual controller will display 'Test passed' or 'Failed +fault code'
F. If the manual controller display shows 'Failed', note the code number and refer to Section
5.6, Diagnostic Fault Codes. Follow the appropriate procedure from the Troubleshooting
Guide for further instructions.
It is recommended to perform this test again and after pressing GO for activating motors,
press the green button again for advanced diagnostics mode. The drive motors will rotate the
drive wheels for a long time, displaying two sets of numbers. The top display line will be
RPM and will look like this: 82 – RPM – 83. The number to the left indicates the left
wheel/drive motor speed. The bottom line of the display will indicate the power needed to get
to these RPM values, which will look like this: 58- PWM – 59. Again, the left number for the
current needed to run the left wheel/drive motor and the right one for the right wheel/drive
motor. These raw readings can be used to detect whether there is an increased friction on one
of the wheels or if any of the electronic components are faulty. For instance, if there are no
numbers shown at all (Unless it is an RL800 where this doesn't count) it means the main
board is faulty, if all the wiring is connected well.
5.4.5 Mowing Motor
This test checks the operation of the mowing motors.
IMPORTANT: SAFETY FIRST! Make sure that there is nothing
under the mowing deck, or any loose clothing etc. that can get
caught in the blades. Keep hands and feet well away from the
mower. Perform this test after insuring that there is no debris that
can be picked up and thrown by the blades.
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