Avant 755i 760i Service and maintenance
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Relays
Depending on installed options, there are relays
installed to the frame of the hydraulic oil cooler at the
front right side of the loader. The number and
function of installed relays depends on installed
options and equipment on the loader. In case of
trouble related to a electric function, and the fuse is
not blown, check the relays.
Relays on the frame of hydraulic oil cooler:
Vehicle Power Distribution Unit
Instead of separate relays, a vehicle ECU with
electric power distribution unit (PDU) at the rear right
of the loader controls the electric functions of the
loader.
There are additional fuses within the unit. In case of
trouble related to a electric function, and the fuses in
the regular fuse boxes are not blown, check the
PDU. Always disconnect the battery before opening
the PDU housing. Also, wipe the cover and its
surrounding clean from dust and moisture before
opening it. Make sure the seal is clean and fits
perfectly when closing the cover.
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