Operation Manual

62
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Troubleshooter
In case of an error message, check whether the hand brake is engaged, whether the ignition is
switched on, whether the battery has sufficient voltage, whether the oil level is correct, whether
there is any damage to the cylinders, and check the cables. If this does not lead to a solution for the
malfunction, the malfunction could be located in the drive units. As the drive unit does not have any
repairable parts, the search for malfunctions and the maintenance work to the electronics is limited to
replacing the abovementioned components (also see page 63).
The error mode
• Iftheignitionlockisnotswitchedonorthehandbrakeisnotengaged,thecompleteunitcannot
be switched on, unless the jacks have been lowered and the hand brake is being disengaged, in
which case the ‘park brake’ led will fl ash and the buzzer will beep. You are now able to switch on the
unit with the on/off button.
• If,whenretractingthejacks,thepumpisrunningonoverpressureforafewseconds,theretracting
action should stop (in both manual and automatic mode).
• Ifthejacksareretractedandthepressureswitchonthepumpde-energizes,theunitwillretractthe
jacks again for a few seconds, if the ignition is switched on.
• Atimerwillrun,whichwillcountupwhenthepumpisrunningandcountdownwhenthepumpisnot
running. If this timer reaches a value that is too high, the pump will stop running in order to prevent
overheating.
• Undernormalcircumstances,allLEDsareoffandtheunitwillonlyrespondtothe‘on/off’button
(switch on).