Electronic Differential Lock Control - New Holland T8010 Manual

Section 25 - Four-Wheel Drive Front Axle - Chapter 2

ELECTRONIC DIFFERENTIAL LOCK CONTROL

General Description – The Differential Lock consists of the differential lock clutch, differential lock control valve,
differential lock control switch, brake pedal switches, true ground speed circuit, hitch position circuit, transmission
speed circuit, and electronic control modules (through the Data Bus). Because the differential lock is electronically
controlled, automatic operation is possible.
All differential lock operator commands are sent to the Arm Rest Control Module then relayed to the PTO controller
via the Data Bus. Transmission speed and true ground speed signals are sent to the instrument Cluster Unit (ICU)
then relayed to the PTO controller. Diagnostic and programming information are communicated between the PTO
controller and the Instrument Control Unit (ICU) by way of the Data Bus.
Operational Modes – The differential lock system operates in one of two (2) modes based on operator commands
and the signals received from the other tractor systems.
RH05J067
OFF (see NOTE below)
ON (Differential Symbol)
Automatic Differential Lock Control (A)
NOTE: It is not possible to disengage the differential lock with the switch control. Pushing either brake pedal will
deactivate the differential lock.
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