What steps does air compressor maintenance include

Today, the editor will introduce to you what are the steps of air compressor maintenance content?

Air compressor maintenance step 1: Check the joint contact and insulation resistance of the electrical part of the air compressor.

Use an ammeter to detect the current value of each item or use an infrared temperature gun to detect the temperature of the incoming line terminal, and make a preliminary prediction to help determine whether the cable head is loose.

After the power-on inspection, swing the wires one by one with your hands, feel the tightness of the wire ends, and tighten the loose wire ends; in addition, you need to use a megger to test the insulation between the motor, equipment and the ground, and the insulation resistance should be controlled at 500M Europe or more; otherwise, it should be dried or repaired.

Air compressor maintenance step two: motor maintenance

Only proper lubrication can guarantee the life of the bearing. The front and rear ends of the motor are equipped with bearings. Works fine with regular oil injections. The type of grease should be selected according to the parameters provided by the respective manufacturer.

Air compressor maintenance step three: Clean the inlet pressure reducing valve and filter element.

Removal of the pressure reducing valve: remove the hose connecting the pressure reducing valve and the air filter (be careful not to let foreign matter enter the air inlet);

Remove the gas lines of all other components connected to the pressure relief valve;

Remove the solenoid valve coil;

Remove the nuts that assemble the unloading valve and the main engine;

Move the pressure relief valve to a surface covered with clean paper or equivalent clean paving.

The cleaning method of the intake filter element is: take out the filter element, gently tap its upper and lower end faces, or blow it gently with compressed air to clean the dust and dirt on the filter element. Avoid brushing your teeth with oil or water. If the filter paper is found to be damaged or clogged with dust and dirt and cannot be cleaned, it must be replaced with a new one.

Air compressor maintenance steps

Air compressor maintenance step four: Clean the minimum pressure valve (also known as the pressure maintaining valve).

Cleaning the minimum pressure valve: The method of cleaning the minimum pressure valve is the same as that of the pressure reducing valve.

Assembly of the minimum pressure valve: The structure of the minimum pressure valve is very simple. All internal components are accessible by removing the body cover.

ASSEMBLY OF MINIMUM PRESSURE VALVE: Assemble parts in reverse of disassembly. The assembly process will not be described one by one, but it should be noted that if there is a U-shaped ring inside, pay attention to the direction of the U-shaped ring.

Air compressor maintenance step five: Clean the oil return check valve.

Single oil return valve assembly: the valve body has joints. Take out the spring, steel ball and steel ball seat. There is also a strainer inside the local check valve.

Clean the oil return check valve: clean the valve body, spring, steel ball and steel ball seat with cleaning agent. If there is, wash it together.

Assembly of the oil return check valve: install the check valve according to the reverse steps of disassembly.

Air compressor maintenance step six: Clean the temperature control valve.

Clean the temperature control valve: Clean all parts of the temperature control valve according to the method of cleaning the unloading valve.

Assembly of the temperature control valve: There is a cover on the surface of the temperature control valve. Find a nut that fits, screw it in the cap, then use the circlip pliers to remove the snap ring that holds the cap in place, then use the pliers to pull on the nut you just screwed in and remove the cap and all the internals.

Air compressor maintenance step seven: Clean the cooler.

When the scale of the oil cooler is serious, the oil cooler can be disassembled, the end caps at both ends are opened, and the scale can be removed with a special cleaning steel brush or other tools. When cleaning the medium side of the cooler cannot effectively reduce the temperature, it is necessary to clean the oil side as follows:

Dismantling of inlet and outlet pipes;

Inject cleaning solution for immersion or flush with a pump cycle (the effect of backwashing is better);

rinse with water;

Blow dry with dry air or remove moisture with dehydrating oil;

Install the inlet and outlet pipes.

Air compressor maintenance step eight: Clean the water and air separator.

The structure of the water and gas separator is similar to that of an oil and gas tank, and the air inlet is designed against the wall, solidified into centrifugal force. Due to the weight of the water, it can effectively separate the water from the compressed air.

Cleaning of the water and gas separator: remove the cover of the water and gas separator, and then soak and clean it with cleaning agent.

Air compressor maintenance step nine: Confirm all parameters.

After all the above components are cleaned and dried, they will be installed in the air compressor. After installing all components to the air compressor, check again for anything missing and clean up tools and other items used during installation.

Lingyu Machinery - industrial rotary screw type air compressor