SWING PARKING BRAKE RELEASING PRESSURE SWING PARKING BRAKE RELEASING PRESSURE 13) 13) (1) (1) ① ② Preparation Preparation Stop the engine. Push the pressure release button to bleed air. Install a connector and pressure gauge assembly to swing motor SH port, as shown. Start the engine and check for oil leakage from the adapter. Keep the hydraulic oil temperature at 50 ± 5 C. ③ Swing motor ④ Pressure gauge SH ⑤ (2) (2) ① Measurement Measurement Operate the swing function or arm roll in function and measure the swing brake control pressure with the brake disengaged. Release the control lever to return to neutral and measure the control pressure when the brake is applied.
Repeat three times and calculate the average values. ② (3) (3) Evaluation Evaluation The average measured pressure should be within the following specifications. Unit : kgf / cm 2 6-16 Model Description Standard Remarks R60WVS RRO Brake disengaged 30±10 Brake applied 0