Fault diagnosis of parking brake
Fault symptom judgment Causes and measures The brake brake torque is reduced due to wear of the disc. Please remove and replace the disc of the parking brake. Clean the parts and assemble them. The disc surface is deteriorated due to poor contact. The brake is dissipated and lowered. Remove the disc and replace the disc. In addition, repair the surface of the disc part and assemble it. The spring is worn or damaged, and the parking brake torque is reduced. Please disassemble and replace the spring. Please clean the parts before assembly. When the external load is in the parked state, the motor rotates. The external load is too large and the parking brake capacity is insufficient. Please re-check the external load and adjust it to the correct position. O shape If the ring is damaged, the high-pressure oil leakage parking brake cannot be removed. Please disassemble and replace the O-ring. Please clean the parts and assemble them again. The parking brake release the sharp-edged throttle in the oil circuit is blocked by foreign matter, and the high-pressure oil cannot flow. When the parking brake is in the cylinder chamber, the parking brake cannot be released. Remove it and remove the foreign matter from the sharp edge orifice. Please clear the parts. Clean up and assemble again. In addition, please flush the inside of the piping. The motor has no driving force. The motor is abnormally heated. The drain pipe is blocked by foreign matter, or the drain pipe is too long and too long, causing the drain pressure to rise. The parking brake cannot be removed. Please clean the drain pipe. In addition, please check the piping system to reduce the pipeline resistance.