The lifter cannot lift or the lifting force is weak 1. The relief valve pressure adjustment does not meet the requirements. Adjust the pressure to the required value 2. The cylinder leaks in. Check or replace the cylinder assembly 3. Check the valve or leak it. Check or replace the valve assembly 4. The oil level is too low, the oil filter is clogged and the oil is filled, and the oil filter is cleaned. 5. The oil pump is defective Check or replace the pump. The ripper does not lift or the lifting force is weak 1. The pressure adjustment of the overflow valve does not meet the requirements. To the required value 2. Discharge in the cylinder See the exclusion method in 2.3.4.5 above 3. The reversing valve is jammed or leaks inside 4. The oil level is too low and the oil filter is blocked 5. The oil pump is defective 6. Unidirectional Valve Leakage Check the damage of one-way valve plug and valve seat. Whether the one-way valve spring is fatigued, deformed, etc. The operating rod is heavy 1. The operating rod mechanism is faulty. Check, adjust and replace the defective parts; clean the valve parts; check the hydraulic oil cleaning. Degree 2. Control valve spool clamping (manufacturing, installation problems, dirt problems)
Hydraulic Torque Converter and Compensation System Faults, such as Torque Converter Torque, Power Shift Failure, High Oil Temperature 1. Torque Converter Torque (1) Insufficient Hydraulic Oil (2) Improper Pressure Adjustment (3) Insufficient back pressure Check torque converter oil quality (whether misuse of hydraulic transmission oil), dosage, check torque regulating pressure valve, back pressure valve and set pressure value 2. Power shift failure (1). Quick-return valve, pressure reducing valve, power transmission valve, and reversing valve have stuck and internal leakage (2). The oil contamination is serious. Check the cause of the valve stuck and eliminate accordingly, filter or replace the hydraulic oil (3). Raise the temperature too much. Check if the cooler is faulty. Check the hydraulic oil quality brand.
Hydraulic Torque Converter and Compensation System Faults, such as Torque Converter Torque, Power Shift Failure, High Oil Temperature 1. Torque Converter Torque (1) Insufficient Hydraulic Oil (2) Improper Pressure Adjustment (3) Insufficient back pressure Check torque converter oil quality (whether misuse of hydraulic transmission oil), dosage, check torque regulating pressure valve, back pressure valve and set pressure value 2. Power shift failure (1). Quick-return valve, pressure reducing valve, power transmission valve, and reversing valve have stuck and internal leakage (2). The oil contamination is serious. Check the cause of the valve stuck and eliminate accordingly, filter or replace the hydraulic oil (3). Raise the temperature too much. Check if the cooler is faulty. Check the hydraulic oil quality brand.
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