Jungheinrich trucks with the regenerative lowering option have a hydraulic circuit for lifting and lowering as well as a separate hydraulic circuit for the auxiliary functions.
All settings must be made with the rated load and the hydraulic system at operating temperature and bled.
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Lifting Hydraulics
Pressure Relief Valve Setting
Bleed the hydraulic system.
Set the pressure relief valve (3) to nominal load pressure +15 bar when the hydraulic system is at operating temperature.
After setting the valve, secure the setscrew with sealant.
The pressure relief valve factory presetting is 200 bar.
Line Break Safety Device Control
The maximum permissible lowering speed in the mast lift is 0.6 m/s.
Remove the connector from the solenoid (4)
Raise the load pickup device to mast lift Set key switch to
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