5 Servicing
Troubleshooting
Malfunctions during operation
CAUTION
If one of the following control lights lights up in the
indicator unit and the buzzer sounds during opera-
tion, a malfunction has occurred.
The truck must be switched off immediately and the
malfunction dealt with.
Each error is indicated by a numerical code or
symbols in text field (5). Please then contact
your authorised dealer.
Warning light (1) lights up: "early warning Motor temperature at upper limit"
Possible cause
Remedy
Drive motors and p
ump motor have almost
reached temperat
ure limit
Allow motors to co
ol down as soon as possible
Warning light (2
) lights up: "Motor temperature at upper limit"
Possible cause
Remedy
Drive motors a
nd/or pump motor are too hot
Allow motors to
cool down
Warning light (3) lights up: "Error in electrical control system or charger operation"
Possible cause
Remedy
Error in ele
ctrical control system or charger
operation
Contact you
r authorised dealer.
Warning li
ght (4) in indicator unit lights up
Possible c
ause
Remedy
Consult operating manual for further informa-
tion
If the fault cannot be remedied, contact your
authorised dealer.
144 Operating Instructions – 386 807 1001 EN – 03/2006
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