1. check:

1. Check the coupling body for cracks.

2. Check whether the coupling connection is firm.

3. Check whether the key connection of the coupling is loose and roll the key.

4. Check whether there is radial circle runout and end face runout when the coupling rotates.

5. Check whether the lubrication condition of the coupling is good.

6, check the coupling gear integrity, wear and internal and external gear meshing condition.

2. maintenance:

1. Local disassembly and inspection of equipment, cleaning specified parts, dredging pipes and valves;

2. Replace or clean the packing, observe whether the sealing part is leaking, adjust the fit clearance of each part of the equipment, and fasten each part of the equipment;

3, the motor and water pump bolts for oil and rust treatment;

4, check the pressure gauge, control cabinet is normal, if there is damage to repair or replace;

5. Check the operation of the control cabinet and whether the internal components are normal.