Wacker Neuson Telehandler TH412 Operator's Manual page 330

8 Malfunctions
Fault at the drive
Error/malfunction Possible cause
Operator not seated on the operator seat
Manual inching (option) is actuated
Malfunctioning operator presence switch
Malfunctioning parking brake switch
Parking brake is applied
Engine is running but
machine will not travel
The inching cartridge is not in the 0-position
Malfunctioning electronics control box
The solenoids on the hydraulic pump are not
receiving any electrical power
Inching is stuck
Manual inching (option) is actuated
Drive does not have
Continuous operation of the hydraulic connec-
enough output
tions is switched on and operates against
pressure
8-4
Remedy
Sit down on the operator seat
Switch off manual inching
Have the operator presence switch replaced
Have the parking brake switch replaced
Release the parking brake
Check and if necessary have the inching car-
tridge repaired
Have the electronics control box replaced
Check the fuses, have the loader unit control
levers and the electronics checked in a ser-
vice center
Have checked and repaired
Switch off manual inching
Switch off continuous operation of hydraulic
connections
BA TH412 * 06/2017 * 4512_8_Stoerungen_en.fm