5
The other solution, easier if spare parts are available, is to replace one at a time the
components.
Brushed blade motor
wiring
Pay attention to blade motor wiring.
The correct wiring is showed in the figure below.
Wire color is not important, but only the connections between motor contacts and connectors
are to be considered.
Contacts on motor have different shape, so it is not possible to invert the wiring on the
motor.
Tall grass
-
Grass is really tall
-
There is some material (grass, mud, etc…) on the blade or blade motor shaft
preventing the motor to correctly turn
-
Damaged blade motor bearing
-
Damaged blade motor encoder
-
Failed motherboard
Bump Error
Robot does not identify
bumps
Probable causes:
-
Verify proper positioning and fixing or the cover
-
Using service menu, Test bump, verify which is the damaged bump sensor
-
Verify that no springs are damaged inside the bump groups
-
Verify wirings and connections
-
Failed bump board
Safety handle does not
work (blade is not turned
OFF when the handle is
touched)
Verify:
-
On user menu, the safety handle feature is enabled
-
Turn robot OFF and ON and verify
-
Verify handle wiring
-
Verify proper measurement values by using Service menu, Safety handle (see “Robot
set-up” document)
Clock Error
Date and time are not
update
Change motherboard
Checksum Error
The robot shows this error when the setting parameters stored in the memory are not
correct. Press ENTER when the message is shown. In this way, the robot will ignore the
error and the user can set robot setting (date, time, schedule, etc…).
