Electric forklift daily maintenance items and cycle standard description

Electric forklifts are currently widely used in various scenarios such as warehousing and transshipment, factory material handling, etc. Compared with internal combustion vehicles, their operation and maintenance logic focuses more on the maintenance of power systems and hydraulic structures. Many first-line users have a vague understanding of standardized maintenance items and corresponding cycles, which is prone to excessive maintenance or lack of maintenance. This not only increases unnecessary costs, but also buries hidden safety hazards. The following is a clear explanation of the maintenance requirements at different levels in combination with the load standards of conventional use scenarios.

The first is the daily routine maintenance, which is carried out before and after each shift. This part of the basic maintenance does not require disassembling parts, but mainly focuses on visual inspection and functional testing. The operator must first check the appearance of the car body to confirm that the shell has no bumping and cracking marks, the tire pressure is in the normal range, and the tread is not embedded with sharp foreign objects. Then check the status of the power system to confirm that the battery terminals are not loose or leaking, the electrolyte level is in the safe range marked by the manufacturer, and there is no external circuit installed without permission. Then test the control system functions one by one to confirm that there is no abnormal sound of forward and backward switching, steering operation, braking and braking, and the braking distance meets safety requirements. The lights, reversing buzzers, and warning signs of the whole car are all in normal working condition. Finally, check that the fork and lifting chain are not obviously deformed and cracked. After the operation, park the vehicle in the designated area, power off and pull the handbrake to clean up the debris and stains remaining on the surface of the vehicle.

The second is weekly maintenance, which corresponds to a cumulative operation period of 40 hours or a fixed weekly. This part of maintenance should be deeply cleaned and reinforced on the basis of daily inspection. First, comprehensively clean up the dust and debris accumulated inside and outside the body, and focus on wiping the dust and water on the surface of the battery to avoid accidental short circuits. Then check the tightness of the fasteners of the core structure one by one, especially the fixing bolts of the steering axle, wheel rim, and fork rack. If they are loose, tighten them in accordance with the standard torque in time, and then add grease to all the pin parts of the movable connection. At the same time, check the pipeline joints of the hydraulic system to confirm that there are no traces of oil leakage. The hydraulic oil level is in the middle of the scale mark. Test the whole process of lifting and lowering the door frame without load, and confirm that there is no abnormal sound card.

The third is monthly maintenance, which corresponds to a cumulative operation period of 200 hours or a fixed monthly maintenance. This part of maintenance involves the performance inspection of the core components. First, check the charging and discharging performance of the battery, record the single-cell voltage data, and equalize the charging in time if the voltage deviation is too large. Then check the wear of the carbon brush of the drive motor, clean the dust accumulated inside the motor, check the insulation layer of all control lines, and there is no aging and damage. Test the trigger sensitivity of each micro switch one by one to ensure accurate operation feedback. Afterwards, the braking system was fully debugged, the gap between the brake shoes was adjusted, and the seals that had become brittle were replaced. At the same time, the tension of the lifting chain on both sides of the gantry was calibrated to ensure uniform tension on both sides and avoid the problem of skew sticking when lifting heavy loads.

Finally, there are in-depth maintenance at the quarterly and annual levels. The corresponding cycle is a total of 500 hours of operation to carry out quarterly maintenance, and a total of 2,000 hours of operation to carry out annual full inspection. During the quarterly maintenance stage, the hydraulic oil filter element should be replaced, and the quality of the hydraulic oil should be sampled. If there is emulsification or discoloration, all the hydraulic oil should be replaced directly. Check the outer skin condition of the wiring harness of the whole car, and replace the aging wiring harness that has cracked. During the annual full inspection stage, the full-load performance test of the whole vehicle should be done, and the operating parameters of the power system, hydraulic system and control system should be checked one by one to check the hidden potential faults. At the same time, the maintenance records of the whole year should be sorted out If the electric forklift truck is in a high-frequency and heavy-duty operation scenario for a long time, the user can shorten the corresponding maintenance cycle according to the actual operating state, arrange professionally trained personnel to carry out maintenance operations, and make good maintenance records every time, so that the equipment can be maintained in a stable operating state for a long time.