McCONNEL MULTIDRIVEM380‐4&M420‐4
69
Windscreen Washer Bottle
The washer bottle is located under the engine hood / bonnet forward of the cooling pack
Access is obtained by lifting the engine hood / bonnet.
Electrical System
Electrical System
Batteries 2 x 12volt 100 amp/hr
Battery Terminal Ground Negative
Alternator 12v 130 amp
There are several ECUs (Electronic control unit) on the machine as follows:
Display unit (MCU)
Engine ECM
Transmission TCU
Steering/PTO controller (Plus1)
Circuit board
Switch Panel
The ECUs are all connected via a J1939 Can Bus system. This system allows the ECUs to
“talk” to each other via a network system which consists of just 2 wires.
The heart of the electrical system is the power distribution circuit board which is mounted
in a compartment, accessed via the right hand cab, emergency escape door. All the
machine wiring harnesses plug into this board and all the relays and fuses are mounted on
it. Most of the relays and are operated via the can bus with the majority of the instructions
being sent either by the MCU or the switch panel.
N.B. It is most important to protect all wiring connections from the corrosive effects of
fertilisers and chemicals. All connections should be frequently checked, cleaned and
coated with dielectric grease, or other suitable anti-corrosive lubricant.
Windscreen Washer Bottle
Windscreen washer
filler cap
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