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16 Troubleshooting
2 Speed Drive Unit
*Do not disassemble drive to assess fault, disassembly without written permission and instructions from Digga
will void all warranty.
Trouble Possible Cause Remedy
The 2 Speed is
only operating
in low speed.
No power supplied to the controller.
Ensure that the correct voltage is supplied to the controller. The one LED light will
Illuminate.
NOTE:
The 2 Speed drive units can be supplied from DIGGA in either a 12 volt or 24 Volt
setup at the factory specic for the excavator which the drive unit is to be used on.
Check that the Green LED light is illuminated on the Cigarette Lighter power
connector of the power lead.(Cigarette Lighter AKA accessory power connector)
There is a 10 Amp Fuse inside this power plug connector. Check the continuity of
the fuse if light is out.
No power supplied to the
Planetary Drive.
Check if the LED inside the Hirschmann plug, on the valve block is Illuminated,
this is located inside the Hood. When power is applied, and the LED is not
Illuminated. Check the Harness, no light indicates no power is available to the
Planetary Drive. The Clear Hirschmann plug with Power LED is a new addition,
from April 2022.
Controller not connected to the
extension harness.
Check Extension cables and harnesses to ensure they are plugged in and secure.
Extension harness not plugged
into the motor harness.
Check Extension cables and harnesses to ensure they are plugged in and secure.
Excavator is 24V and drive unit
has been setup for a 12V supply.
This may have burnt out the solenoid coil. Contact your DIGGA Dealer.
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