Effer DMU 2000 - Page 66

Electronic device DMU2000 - DMU3000 - DMU3000 PLUS
THE POWER OF PERFORMANCE
66
Electronic device DMU2000 - DMU3000 - DMU3000 PLUS
i) During connection of computer to DMU the following message appears on the
monitor: ERROR 2, ERROR 26 or ERROR 28
The software on the diagnosis of the DMU is set to a COM port which is dierent from the USB port on
your computer.
SOLUTION setup the USB port following the instructions
in chapter 6 of this manual
l) No light flashes, there is an acoustic alarm
of intermittent/slow type Bip……Bip……Bip……
If you connect the computer to the crane you have no failure indication
The selector seal of anti-uplifting disable box has been removed and has been operated.
SOLUTION turn the anti-uplifting disable box selector to the correct position and place a new seal
(this work has to be carried out by an EFFER authorised workshop)
m) CRANES MANUFACTURED SINCE JANUARY 2005: after 30 minutes of work –
time measured since a control bank lever is operated – for a time of two minutes a
sound made up of a series of four beeps is emitted.
Bip-Bip-Bip-Bip / Bip-Bip-Bip-Bip / Bip-Bip-Bip-Bip-……
This type of allarm appears each time you turn on the DMU, with the procedures described above.
CAUSE
The DMU has received the indication of the oil lter delivery clogging.
! FAILURE ANALYSIS
This fault is displayed by the computer, and by the presence of the red band inside the clogging indi-
cator on the lter.
CHECK
You can check not only on the computer but also on the clogging indicator on the lter: when an acou-
stic alarm is emitted if you see a red band inside the clogging indicator, the lter cartridge is certainly
clogged.
SOLUTION
Replace the lter cartridge as soon as possible.
N.B.: following application of a new lter cartridge, the indication of lter clogged lter remains
on the computer for a time of 30 minutes of work, measured since a crane control bank lever is
operated.