6 Maintenance
Maintenance every 500 hours
Replacing the pump motor brushes
– Stop the truck, disconnect the battery
socket and remove the front cover.
To gain access to the brushes:
– Undo the two screws located above the
pump motor and remove the cover.
– Lift the pressure springs and remove the
brushes.
The brush length must not be
less than the
minimum length (i.e. 11 mm)
.
– Change all the brushes when a brush
reaches this measurement.
NOTE
Change the set of brushes when they reach
the minimum length. Before refitting, check
that there is no trace of burning on the collec-
tor. The new brushes must be bedded before
refitting. If old brushes are refitted, do not re-
verse them or turn them over. Consult your
service department.
– Put back the pump motor cover.
– Put back the front cove
r.
1050_003-031
F5
F3
F1
F4
F8
2
1
Service the electric
al system
Check connections a
nd fuses
DANGER
– Before beginning the following services, park the
truck and disconnect the battery connector.
– Remove the front cover.
– Check the fuses (1) for proper condition.
– Check all connections (2) for security.
– Tighten all clamping screws.
Check the contactor tips
– Check the contactor tips for pitting and have
them replaced, if necessary.
– Refit and secure the cover.
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4 50108043033 [EN]
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