What are the seasonal maintenance items of forklift trucks?

The daily maintenance of forklift is the most common process in forklift maintenance. Forklift maintenance is divided into four categories, namely, daily maintenance, primary maintenance, secondary maintenance and tertiary maintenance. Daily maintenance should be carried out every day. Usually, first-class maintenance is carried out after 50 hours of work, second-class maintenance is carried out after 200 hours of work, and third-class maintenance is carried out after 600 hours of work.

(1) Check the amount of engine oil in the engine crankcase and air filter, the amount of fuel in the fuel tank and the cooling water in the radiator, and add it as required if it is insufficient;

(2) Check the height of the electrolyte surface in the battery, add it as needed, and keep the air holes of the cover unblocked, and the pole posts are tightly engaged with the terminals;

(3) Check the free travel and working reliability of hydraulic brake and hand brake, and add brake fluid and remove air from the system as needed;

(4) Check the tire pressure and remove the sundries embedded in the tire tread;

(5) Check the amount of working oil in the fuel tank of the vehicle hydraulic system, and check whether there is any leakage in the pipelines and joints;

(6) Check the water level of the fire water tank;

(7) Check the working conditions of instruments, lights and speakers;

(8) After completing the above inspection, start the engine, check the operation of the engine, and check whether the transmission system, braking system and hydraulic lifting system work normally.

1. Daily maintenance: after each shift.

2. First-class technical maintenance: work 100 hour, and one shift is equivalent to 2 weeks.

3. Secondary technical maintenance: 500 hours of work, one shift is equivalent to a quarter.

I. Daily maintenance:

1. Clean the dirt, mud and dirt on the electric forklift. The key components are: the sliding rail of the fork and gantry, the generator and starter, the battery electrode fork, the water tank and the air filter.

2. Check the fastening of all parts, focusing on: fork bracket, chain tension screw, wheel screw, wheel fixing pin, brake and steering gear screw.

3. Check the reliability and flexibility of the foot brake and steering gear.

4. Check the leakage, focusing on: pipe joint, diesel tank, engine oil tank, brake pump, lifting cylinder, tilting cylinder, water tank, water pump, engine oil pan, torque converter, transmission, drive axle, main reducer, hydraulic steering gear and steering cylinder. 5. Remove oil filter sediment.

Second, the technical maintenance level:

According to the daily maintenance project, add the following work:

1, check the cylinder pressure or vacuum.

2. Check and adjust the valve clearance.

3. Check whether the thermostat works normally.

4. Check whether the multi-way reversing valve, lifting cylinder, tilting cylinder, steering cylinder and gear pump work normally.

5. Check whether the shifting operation of the transmission is normal.

6. Check and adjust the gap between the brake pads of the hand brake and foot brake and the brake drum.

7. Replace the oil in the oil pan, check whether the crankcase ventilation nozzle is in good condition, and clean the oil filter and diesel filter element.

8. Check whether the generator and starting motor are installed firmly, whether the connector is clean and firm, and check whether the carbon brush and commutator are worn.

9. Check the tightness of the fan belt.

10, check whether the wheels are firmly installed, whether the tire pressure meets the requirements, and remove the sundries embedded in the tread.

1 1. Parts were disassembled due to maintenance work. After reassembly, a forklift road test is required.

(1) The braking performance of different degrees shall be free from deviation and hunting. On a steep slope, you can stop reliably after tightening the handbrake.

(2) Listen to the operation of the engine under the conditions of acceleration, deceleration, heavy load or no load to see if there is any abnormal sound.

(3) After the road test, check whether the brake, transmission, front axle housing and gear pump are overheated.

(4) Whether the vertical speed of the fork frame is normal or not, and whether it vibrates.

12. Check whether the filter screen at the oil inlet of diesel tank is blocked or damaged, and clean or replace the filter screen.

Third, the secondary technical maintenance:

In addition to maintaining each project according to the first-class technology, the following work has been added:

1. Clean all oil tanks, filters and pipes, and check for corrosion and cracks. After cleaning, it is forbidden to wipe with yarn ends and fiber cloth.

2. Clean the torque converter and gearbox, check the wear of parts and replace with new oil.

3. Check the bearing of the transmission shaft and change the direction of the universal joint cross shaft as needed.

4, check the various parts of the drive axle fastening and presence of oil leakage, dredge air holes. Disassemble and inspect the main reducer, differential and wheel reducer, adjust the axial clearance of bearings, and add or replace lubricating oil.

5. Disassemble, inspect, adjust and lubricate the front and rear wheel hubs, and replace the half axle.

6. Clean the brake and adjust the gap between the brake drum and the friction plate of the brake shoe.