Bobcat S530 D7509 Error Code

D7509 Fault Code Meaning :

Operating Mode Switch Short To Ground Or Battery

Drive Operating Mode Switch Short To Earth Or Battery

Drive ISO/H Pattern Switch Short to Ground or Battery

Park Brake Reserve Pressure Low

D7509 Error Code

Park Brake Reserve Pressure Low is the main cause of D7509 error.To solve D7509 locate and open the low-pressure valve, then attach the refrigerant to the valve and charge from there. Ensure you use the right refrigerant type and amount, as specified by a manufacturer. It is possible to overcharge the AC, so consider seeking help from a mechanic.

Tip For S530 Model

The overload warning device (if equipped) senses hydraulic pressure in the boom lift circuit. When the hydraulic pressure in the boom lift circuit reaches a predetermined pressure setting, a buzzer will sound that indicates an overload condition.

If the buzzer sounds, immediately move the arm closer to the excavator and lower the boom. Reduce the size of the load before attempting to re-lift the load.