3-80 OM 25-3503 us – Edition 4.1 * * 2503_3503b340.fm
Operation
Measures to be taken in case of malfunctions
The system still works correctly if only one component breaks down. However,
if more than one component breaks down, the pressure regulating valves
possibly run uncontrollably!
System breakdowns can never be excluded, therefore:
• Disconnect the electric controls from the power supply before performing
repair work or maintenance on the hydraulic system!
• Stay clear of areas with crushing hazard!
• Stay clear of areas between moving hydraulic components and fixed obsta-
cles! Crushing hazard!
• The operator of the machine or hydraulic system must be aware of possible
machine or system errors.
Information!
Proportional controls and Powertilt with proportional controls: the hammer
pedal has no function.
Diagnosis display
The system runs correctly if status indicator C of the proportional controls does not flash. If
status indicator C flashes, contact a Wacker Neuson service center and have the malfunc-
tion rectified.
The proportional controls are switched off automatically if a critical error is detected.
A: diagnosis display up to serial no. AG02452
B: diagnosis display from serial no. AG02453
Fig. 189: Proportional controls diagnosis display
A
B
C