After the electric forklift truck has been running for 500 hours , a first-level maintenance shall be carried out. The driver shall be the main person in charge, and the maintenance personnel shall cooperate with each other. In addition to the daily maintenance, the following contents shall be added:

1. Complete daily maintenance and various contents.

2. Clean and wipe the dust and grease on the surface of the accessories and the inside of the body except for daily maintenance.

3. Check and adjust the pedal stroke of the commander, from turning on the start switch to the proper stroke of the forklift.

4. Check whether the out-of-control protection circuit works normally, that is, turn on the electric lock, and short-circuit the armature joint of the traveling motor with the casing. If the relay is closed and the indicator light is off, it is normal.

5. Check whether the forklift battery pole is corroded, and whether the seal is cracked.

6. Check the battery box of the electric forklift for corrosion and open welding.

7. Clean and lubricate the main frame, chain and guide wheels.

8. Loosen the oil drain plug at the bottom of the oil tank, release the sediment and water in the oil tank, and replace the hydraulic oil according to the situation. For a new forklift or an electric forklift after an overhaul, the hydraulic system must be thoroughly cleaned and replaced with new hydraulic oil during the first level of maintenance.

9. Lubricate according to the lubrication table.