Maintenance Plan for Test Instruments and Equipment

Laboratory instruments and equipment are important material conditions for testing. Managing and maintaining the instruments and equipment used for testing can ensure the reliability and accuracy of testing data, while keeping the instruments and equipment in optimal working condition and extending their service life. Therefore, this plan is formulated.

1、 Scope and content of maintenance of testing instruments and equipment

1. The maintenance scope of experimental instruments and equipment is applicable to all instruments and equipment related to the approved testing projects in this laboratory. It is the responsibility of each laboratory staff to do a good job in the maintenance of experimental instruments and equipment. Each laboratory staff should effectively fulfill their responsibilities and do a good job in the use and management of instruments and equipment.

2. Instruments and equipment should undergo routine and regular maintenance

(1) Routine maintenance requirements: Before starting and after stopping each test, the experimental equipment should be cleaned, inspected, adjusted, tightened, and individual vulnerable parts should be replaced. Routine maintenance work should be carried out by the personnel using the equipment.

(2) Regular maintenance requirements: Each instrument and equipment must be maintained within the specified time period (maintenance period), regardless of its technical condition or task severity, according to the specified scope and requirements. The maintenance period should be determined based on the wear pattern, operating conditions, and operation and maintenance level of various instruments and equipment. If the maintenance period is specified in the factory manual of the instrument and equipment, it shall be executed according to the instructions; If there is no specified period, it shall be determined by each laboratory based on the actual situation.

(3) The maintenance of test instruments and equipment should be carried out according to regulations, and the main contents of maintenance include cleaning, lubrication, tightening, power on inspection, and replacement of worn parts.

(4) Each regular maintenance should record technical data, include it in the equipment file, and serve as the basis for arranging repair plans.

3. If the instruments and equipment are left unused for a long time, they should be powered on for inspection at regular intervals and cleaned regularly.

2、 Specific methods for maintaining testing instruments and equipment

1. Universal testing machine

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the hydraulic operating system, which should be complete and effective; Check the pipeline and ensure that there is no oil leakage at the joints and that there is no leakage in each oil cylinder; Clean all electrical components and motor deposits; Check the circuit and various electrical components to ensure safe and reliable transmission; Check the locking nuts of the main cylinder and eject the cylinder to ensure that the motor nuts are not loose.

Half a year: Check the hydraulic oil level. If it is insufficient, add the same type of hydraulic oil. If it deteriorates, replace it with a new hydraulic oil; Clean the motor bearings and replace the lubricating grease.

2. Pressure testing machine

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the hydraulic operating system, which should be complete and effective; Check the pipeline and ensure that there is no oil leakage at the joints and that there is no leakage in each oil cylinder; Clean all electrical components and motor deposits; Check the circuit and various electrical components to ensure safe and reliable transmission; Check the locking nuts of the main cylinder and eject the cylinder to ensure that the motor nuts are not loose.

Half a year: Clean the hydraulic oil tank and replace the oil; Clean the motor bearings and replace the lubricating grease.

3. Automatic pressure regulating concrete impermeability tester

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Clean the dust inside and outside the motor and electrical box, and check whether each valve is sensitive and reliable; Check whether the switch contact is good and whether the operating mechanism is in good condition; Check if there are any damaged points on the sealing rubber ring; Check if the displayed pressure is normal to meet the specified requirements.

Half a year: Check the oil in the gearbox and replace it according to the situation.

4. Environmental friendly negative pressure sieve analyzer for cement fineness

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Clean the garbage inside the vacuum cleaner; Check whether the sealing ring is aged or damaged; Check and clean the screen.

5. Planetary cement mortar mixer

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the working gap between the mixing blades and the mixing pot meets the requirements; Add molybdenum disulfide lubricating grease to the moving parts such as the drum wheel pair, gear pair, and bearings in the gearbox, and drip oil between the guide rails for lubrication.

6. Cement slurry mixer

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the working gap between the mixing blades and the mixing pot meets the requirements; Add molybdenum disulfide lubricating grease to the moving parts such as the drum wheel pair, gear pair, and bearings in the gearbox, and drip oil between the guide rails for lubrication.

7. Cement mortar specimen forming and vibrating table

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the time required for 60 vibrations with a stopwatch.

8. Cement mortar fluidity tester (skip table)

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Clean the dust inside and outside the motor and electrical box; Check that the bolts in all parts are not loose.

9. CNC cement concrete standard curing box

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Clean the dust inside and outside the motor and electrical box, and check whether each contact point is sensitive and reliable; Check whether the switch contact is good and whether the operating mechanism is in good condition; Whether the safety tube is loose and intact; Check if the humidifier and sensor are damaged.

10. Boiling box

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the switch contact is good and whether the operating mechanism is in good condition; Is the safety tube loose and intact. Check if the electric heater is damaged. Check and adjust the temperature and time during boiling to ensure they meet the specified requirements.

11. Electric constant temperature drying oven

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the switch contact is good and whether the operating mechanism is in good condition; Check if the resistance wire is damaged; Check the electrical appliances and replace damaged parts as needed.

12. Shock type standard pendulum instrument

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the switch contact is good and whether the operating mechanism is in good condition; Check that the bolts in all parts are not loose; Check the 7 guide rods on the cover plate for deformation.

Half a year: Check and replace the seed oil; The motor case is cleaned once a year, and the timer is refueled every two years to ensure the service life of the components. When not in use, a dust cover is added.

13. Rebound instrument

The rebound instrument should undergo routine maintenance in one of the following situations:

More than 2000 bombings; When there is doubt about the detection value; The fixed value of the steel anvil rate is not qualified. After unhooking the impact hammer, remove the movement, and then remove the impact rod (remove the buffer spring inside) and the triple components (impact hammer, impact tension spring, and tension spring seat); Clean all components of the movement with gasoline, especially the center guide rod, impact hammer, and the inner holes of the impact rod on the impact surface. After cleaning, apply a thin layer of clock oil or sewing oil to the center guide rod, and other components must not be coated with oil; Clean the inner wall of the casing, remove the scale, and check that the friction force of the pointer should be between 0.5 and 0.8N; Do not rotate the fixed zero adjustment screw on the tail cover; Do not make or replace components; After maintenance, calibration tests should be conducted as required, with a calibration value of 80& amp; amp; Plusmn; 2.

14. Forced single horizontal shaft concrete mixer

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check if the electrical control system is in good contact and dry; Check and adjust the clearance between the shovel blade and the cylinder wall; Check the tightness of the machine and tighten it in a timely manner if there is any looseness; Check the sealing condition of the machine and promptly check the quality of the sealing gasket if any leakage is found.

Half a year: According to the usage situation, the bearing components should be lubricated regularly, using calcium based grease, and the gearbox should use 40 # engine oil.

15. Concrete rapid freeze-thaw testing machine

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Clean the dust inside and outside the electrical box and check if the condenser is clean; Check whether the oil level of the compressor is normal and whether the pressure gauge indication is normal; Check whether the switch contact is good and whether the operating mechanism is in good condition; Check if the antifreeze has too much water content; Whether the safety tube is loose and intact; Check if the monitor is functioning properly.

16. Gear type multifunctional electric compaction instrument

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the fasteners and tighten them promptly if any looseness is found.

Half a year: Regularly lubricate the rotating parts according to their usage.

17. Concrete vibration table

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light. Half a year: Add lubricating oil to the vibration motor and suspension bearing.

18. Mortar mixer

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the sealing condition of the machine and promptly check the quality of the sealing gasket if any leakage is found; Check the tightness of the machine and tighten it in a timely manner if there is any looseness; Check if the electrical control system is in good contact and dry; Check and adjust the clearance between the shovel blade and the cylinder wall.

Half a year: According to the usage situation, the bearing components should be lubricated regularly, using calcium based grease, and the gearbox should use 40 # engine oil.

19. Burgundy specific surface area tester

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check whether the switch contact is good and whether the operating mechanism is in good condition; Check that the bolts in all parts are not loose; Check and adjust the parallelism of the upper and lower workbenches to meet the specified requirements.

20. Concrete air content tester

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Check the sealing condition of the machine and promptly check the quality of the sealing gasket if any leakage is found; Check the tightness of the machine and tighten it in a timely manner if there is any looseness.

21. Concrete penetration resistance meter

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Apply oil to unpainted metal surfaces to prevent rust.

Half a year: After using the concrete penetration resistance meter for a period of time, the cover plate on the bracket should be opened and some lubricating oil should be injected into the square hole to facilitate lifting and lubrication.

22. Pressure bleeding instrument

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Apply oil to unpainted metal surfaces to prevent rust.

Half a year: Check the oil pump. If there is not enough oil, open the rear cover of the oil pump, press the inner hexagon bolt, add No. 20 engine oil, and reinstall it.

23. Mortar consistency meter

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Apply oil to unpainted metal surfaces to prevent rust.

24. Mortar layering tester

Quarterly: Clean the oil and dust on the surface and dead corners of the equipment to ensure that the paint meets the natural color and the iron meets the light; Apply oil to unpainted metal surfaces to prevent rust.
Purchase testing machineAccessories-Load CellPlease contact us at Guangzhou Zhongxin:18520271262
The application of the testing machine can be found in the application cases on our official website:Testing Machine - Zhongxin is a first-class company in the field of industrial weighing and ingredients