Electric hoist maintenance need to pay attention to the main points:
1. Always keep the electric hoist parts dry. When the operation is completed, please leave the hoist away from the work area to maintain its performance.
2. The oil in the gearbox of electric hoist reaches 500 hours from the start of operation. Please check whether the quantity of lubricant is enough. After the third month, check the condition of the lubricant regularly. If it is not enough, you need to refuel.
3, the chain of chain hoist maintenance, oil lubrication or lubricants, and regular removal of foreign bodies in the chain and the limit guide group to ensure the smooth operation of the chain.
4, before the normal use of electric hoist should be carried out with a nominal load of 125%, lifting from the ground about 100 mm for 10 minutes of static load test, and check whether it is normal.
5, long-term does not apply when electric hoist should do rust treatment and cleaning and maintenance, and up and down for 1-3 minutes to maintain its performance. The electric hoist installed after being dismantled should first be tested for empty vehicles several times. However, remember to turn on the power before the installation is complete.
6. When checking and debugging the electric hoist, it must be strictly checked whether the limiting device is flexible and reliable. When the hook is raised to the upper limit position, the distance from the hook shell to the drum shell must be greater than 50mm. When the hook is lowered to the lower limit position, the rope chain safety ring should be ensured. The effective safety circle must be more than 2 turns.
Electric hoists have a wide range of inspections, including lifting signs, metal structures, hooks, wire ropes/chains, pulleys, brakes, speed reducers, electrical appliances, safety devices, and no-load tests, all of which are in a normal state.