1. The spool of the steering valve in the steering can be damaged or too soft, it is difficult to overcome the resistance of the steering inverse drive, so that the valve sleeve cannot be automatically returned to the middle cube. 2. Because the hydraulic oil dirt is blocked by the slide valve. 3. Because there is no conditioning in the midfund truck to make the steering bridge cylinder are not in the center orientation, it may be because the spool and the valve body step position offset make the slider do not in the center. 4. The flow control valve card is too large, the hydraulic pipe arrangement is unreasonable or the two-way overload valve or the two-way fuel valve has a side leak, and the hydraulic system saves too large, so that the hydraulic cylinder left cavity or right The cavity pressure is too large. 5. Other factors that cause this problem may be turning to the tissue, air in the oil, the front wheel is positioned, and the difference between the tires may be unevenly adjusted by the brake adjustment of the two front wheels.Diagnosis and sweep: The primary should check that hydraulic oil is dirty. If the new car or the overhaul, the vehicle is not seriously implemented, and the oil is usually dirty. With regard to the long-lasting vehicle, it may be that the flow control valve or overflow valve is formed by failure, which can roll the steering wheel without starting the engine, and the feeling of hand is not open. . If the slider is open, it is not self-defense. If the slider of the steering cylinder is not in the center seat, the median of the forklift is required from the head, and the forklift tire insists. If the connection of loose loosening or the positioning of the tire is caused, it is necessary to fasten the steering tissue, and the viewing of each tire type may be positioned before and after positioning from the head. If it is caused by uneven brakes, the conditioning brake should be corrected.
Vehicle serpentine
Flash scene: When the vehicle steering wheel is correct, maybe when there is no time, the vehicle is traveling along the serpentine (S-shaped).
Factors: 1. Air, pump suction tube and joints in the oil, cavitation scenes occur in the air; 2. Some of the oil absorbing tube is not smooth in the absence of the bend; 3. The liquid tank liquid is low; 4. Cylinder pin Sub loose or rod twists and turns; 5. The leakage of the cylinder may be two-way filling valve.
Diagnosis and removal: This scene is mostly formed by leaking the airway system. Refer to the above problems to diagnose, if each joint or hydraulic device leak, the remedy may be sealed or the equipment should be sealed. If the tank is deficient, it should be refined to a reasonable height. If the oil pipe is partially contracted or bending, it should be replaced from the head plan tubing trend. If the hydraulic element is loose, it should be tightened, and the problem should be replaced to remove the problem so that the vehicle insists straight.
Putting the turn to a light weight
Flashlight: Difference to the resistance of the resistance during the travel of the vehicle is different.
Factors: 1. The spool valve of the dispensing valve violates the central orientation, or is inconsistent with the gap of the gap of the valve body shoulder. 2. Turning to the bridge or dispensing the valve in dirty block, so that the left and right moving resistance are different. 3. Adjustment nut adjustment of the adjustable dispensing valve is not appropriate. 4. Turning to the tubing leak or the seal is damaged at the joint. 5. Big and hard polluted particles enter the transfer of the rotor center may be severely trained, the redirector is damaged and the heating shock is damaged.
Diagnosis and cleaning: This diagnostic hydraulic oil is formed, and new oil should be replaced. If the oil is infected, the adjustable dispensing valve should be adjusted from the head, or the disassembly valve is not hitting the spool orientation. If the tubing leakage may be damaged, it should be repaired. If the steering component is damaged, the corresponding damaged components should be replaced.
In the same way, when the vehicle turns to be inaccurate, it can also be referred to the above problems.
Can only turn one side
Maxic sight: When turned to one direction, the other is not available.
Factors: You can only switch to the steering control valve of the forklift.
Analysis and diagnosis: For this problem, the hydraulic steering cylinder (cylinder and valve is integral) is cleaned, so that the valve can be moveable.
I feel heavy during the direction
Farming scene: When the vehicle is turning, the slow direction is outlined, and the steering direction is turned heavy.
Factors: 1. Hydraulic pump drives the belt slip. 2. The flow control valve spring is too soft. 3. Safety valve, flow control valve or steering tube leakage. 4. Hydraulic pump is excessive.
Diagnosis and removal: Most of this diagnosis is the lack of oil supply [5]. It should be the first to see the hydraulic pump drive belt is not slipping or too loose. If the peanl should adjust the belt looseness, if it is not loose to see the hydraulic power steering machine hydraulic fuel tank is deficient, it should be added. If the above is outstanding, it should be seen that the safety valve, the flow control valve and the steering tube leakage condition and the hydraulic pump wear are not excessive, and the discrimination is made according to the specific situation.
Article from: http://www.brcpower.com/ Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
