Daily Maintenance and Repair of Diesel Forklifts

For large machines like forklifts, once a breakdown occurs, maintenance becomes extremely time-consuming and labor-intensive, making routine maintenance especially important. Forklift maintenance is primarily divided into three levels: first, second, and third. What do these levels mean respectively? Main contents of first-level forklift maintenance: 1. Check the oil level, oil viscosity, and the degree of dirt contamination in the oil; 2. Clean the battery and add distilled water as needed; 3. Inspect the appearance and tension of the fan belt; 4. Check the transmission, drive axle, working oil pump, and water pump drive unit for any abnormal noises; 5. Add lubricating oil or grease to the clutch and brake longitudinal linkages as needed; 6. Inspect the wear on the piston rods of the lift cylinder and tilt cylinder, and smooth out any minor scratches with a stone or fine sandcloth; 7. Check and tighten the bolts and nuts on the tires. Main contents of second-level forklift maintenance: 1. Clean the interior of the engine oil pan, crankcase, and oil filter, and replace with new oil; 2. Clean the fuel tank and check the connections between the fuel lines and the fuel pump for any looseness or oil leaks; 3. Inspect the breaker points of the distributor and adjust the dwell angle; 4. Check and tighten all exposed bolts on the generator; 5. Check the battery's discharge capacity and charge it if necessary; 6. Replace the coolant in the radiator; 7. Inspect and adjust the free travel of the clutch and brake pedals, as well as the brake clearance of the wheel brakes; 8. Drain sediment and water from the bottom of the hydraulic oil tank, clean the filter, and add new oil as appropriate; 9. Check whether the tension of the two lift chains is consistent; 10. Inspect the forklift forks and fork heels for any deformation or cracking. Main contents of third-level forklift maintenance: 1. Adjust the valve clearance; 2. Measure cylinder pressure and investigate the cause if it is unsatisfactory; 3. Check the working performance of the clutch and make adjustments if necessary; 4. Inspect the free travel of the steering wheel and the connections of the steering tie rods, and check the wear on the kingpin and steering arm pin; 5. Check the bearing wear on the clutch and brake pedal shafts; 6. Perform a thorough cleaning of the forklift, and check and tighten all bolts and nuts on exposed parts.