Compressor s416m DIY repair

With competent service - Bezhetsk compressors are "not killed" - however, it is far from easy to properly service them. The following are the principles of Daily Maintenance and the TO1 and TO2 procedures. And although the material is set out about the Bezhetsk compressors with C415M and C416M heads - for the most part it is applicable to the rest of the compressors of any manufacturer - that's what they are for.

1. Timely quality maintenance and repairs are the key to the trouble-free operation and trouble-free operation of the compressor,

2. Compressor maintenance is divided into:

2.1. Shift maintenance (EO) performed during the work shift,

2.2. Scheduled maintenance, depending on the operating mode of the head, is performed (tentatively) after the compressor head has been used up:

3. Shift maintenance:

3.1. Before starting the compressor into operation, check the oil level in the crankcase of the compressor head and, if necessary, top up to the upper mark of the dipstick,

3.2. The oil level must be checked with a cold, non-working compressor head,

3.3. IT IS FORBIDDEN to operate the compressor head when the oil level does not reach the lower mark of the dipstick. However, overflowing oil above the upper permissible level will lead to an increase in oil consumption during the operation of the compressor head and to an increase in oil ejection through the breather,

3.4. Check the condition and tension of the drive belts that transmit rotation from the electric motor to the crankshaft of the compressor head,

3.5. Check the operation of the safety valve, both on the compressor head and on the receiver. To do this, while the compressor is running, manually open the valve several times by the ring or blast head. If, when the valve is opened, air escapes and there is no increase in pressure in the receiver, and when the valve is lowered, it closes tightly, the valve is considered to be in good working order. Changeover of the safety valve is not allowed,

3.6. Check the compressor head during operation for knocking and extraneous noise. If detected, turn off the compressor, determine the cause and eliminate.

3.7. Check the tightness of the connections. If air or oil leakage is found, eliminate the cause of the malfunction.

3.8. Check the operation of the dehumidifier. After 2-3 hours of operation, after the pressure in the receiver is released, condensate should automatically drain through the moisture remover.

3.9. Constantly clean both the compressor head and the compressor as a whole from dust and dirt,

4. Scheduled maintenance - TO1:

4.1. .Change oil in compressor head crankcase, flush crankcase and magnetic plug. Unscrew the drain plug on the preheated compressor head, placing a container under the crankcase. Allow the oil to drain completely for 5-10 minutes; for more complete drainage, it is recommended to tilt the head towards the drain hole. The crankcase is flushed with a low-viscosity oil (industrial 20 or 30), for which, pour flushing oil up to the upper mark of the dipstick and let the head run for 5-10 minutes at idle speed, and then drain the oil completely. Oil should be poured through a fine-mesh funnel. ATTENTION! When changing the oil, mixing of mineral and synthetic oils is not allowed, which will lead to the mixture curdling, loss of lubricating properties and seizure of the piston group. Changing from mineral to synthetic oil and vice versa requires a double flushing with flushing oil,

4.2. Check the air filter element and replace if necessary,

4.3. Unscrew the drain plug from the low pressure manifold on the compressor head (C415M) and drain the condensate,

4.4.Flush the water separator valve,

4.5. Check connecting rod bolts for tightness. The tightness of the connecting rod bolts is checked on a cold compressor head no earlier than 5-6 hours after it stops,

4.6. Check the tightness of the connections and, if necessary, tighten the flywheel nut, the nuts securing the cylinder block to the crankcase, the nuts securing the cylinder head, the nuts securing the manifolds and pipelines, the nuts securing the crankcase covers in accordance with the required torques,

5. Scheduled maintenance - TO2:

5.1. Remove the cylinder head, the cylinder block - clean the pistons, piston rings, valves, inner walls of cylinders and covers from oil carbon deposits,

5.2. Carbon deposits must be moistened with kerosene and cleaned with a copper or other soft plate. DO NOT use solid objects when cleaning cylinder walls and pistons

5.3. When cleaning the valve block, it is necessary to disassemble it and carry out the following work:

5.3.1. –Clean any carbon deposits from each valve plate, separators, seats, places of contact of plates to the valve plate,

5.3.2. Rinse the parts of the valve block in kerosene and dry,

5.3.3. Lubricate with a thin layer of compressor oil and collect,

5.4. When assembling the valve block, the valve plates must fit snugly against the seat. Out-of-plane valve plate installation is not allowed.

5.5. Clean the compressor cooling surfaces from dust, oil, dirt, oil carbon deposits,

5.6. After cleaning the outer surfaces of the refrigerator and pipelines, rinse them with water and blow with compressed air,

5.7. Replace all gaskets ensuring the tightness of the joints,

5.8. Replace individual parts from the spare parts kit.

Operating instructions for the piston compressor Bezhetsk С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) (ASO).

OJSC "BEZHETSKY PLANT
"AUTOSPETSOBORUDOVANIE"

Compressor installation
model С415М (С 415 М, С-415М1)

Compressor installation
model С416М (С 416 М, С-416М1)

S415M (S 415 M, S-415M1) .00.00.000 PS
S416M (S 416 M, S-416M1) .00.00.000 PS

BEZHETSK
2006 year.

Certificate of Conformity No. ROSS RSh. AU 40. In 20054.
Valid until 26.10.2007.
1. PURPOSE OF THE PRODUCT

1. Compressor units of the С415М (С 415 М, С-415М1) and С416М (С 416 М, С-416М1) models are designed to provide compressed air for garages, automobile farms, service stations, gas stations, as well as auto repair and tire repair shops.
2. Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) are designed for operation in the following conditions: altitude above sea level no more than 1000 m; ambient temperature from 283K (+ 10 ° C) to 31ZK (+ 40 ° C); relative humidity of the environment up to 80% at a temperature of 298K (+ 25 ° C).
3. High pressure piston compressors

2. TECHNICAL CHARACTERISTICS Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1)
The technical parameters of the units are shown in Table 1.
Table 1

Name
parameter of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1)

2.1 Nominal capacity of Bezhetsk reciprocating compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), reduced to suction conditions, m3 / min (limit deviation ± 10%)

2.2 Final pressure of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), MPa, no more

2.3 Receiver capacity of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), m3, not less

2.4 Weight without lubricant Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), kg, no more

2.5 Installed power, kW

2.6 Overall dimensions of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), mm, no more
length
width
height

2.7 Oil consumption of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), g / h

3. COMPOSITION OF THE PRODUCT AND DELIVERY SET Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1)
The product (Fig. 1 and 2) includes: compressor head 1, air collector (receiver) 3, engine 4, drive belts 5, guard 2, air duct 6.
3.1. Completeness of delivery of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) is shown in Table 2.
table 2

S415M (S 415 M, S-415M1)

S416M (S 416 M, S-416M1)

3.1.2.Passport S415M (S 415 M, S-415M1) O0.O0.OOO.PS,
С416М (С 416 М, С-416М1) 00.00.000. PS, specimen

3.1.3. Pressure vessel passport, copy

3.1.4. Electric motor passport, copy

3.1.5. Components:
magnetic switch

3.1.6. Spare parts (if the compressor is equipped with a direct-flow valve):
valve С415.01.00.402, pcs.
spring С415.01.00.403, pcs.
valve С415.02.00.302, pcs.

3.1.7. Spare parts (if equipped
compressor strip valve block):
valve plate
S415M (S 415 M, S-415M1) .01.00.807, pcs.
valve plate
S415M (S 415 M, S-415M1) .01.00.811, pcs.
valve С415.02.00.302, pcs.

Rice. 19. Compressor slinging diagram model С415М (С 415 М, С-415М1).

Rice. 18. Electrical schematic diagram and connections
compressor model С416М (С 416 М, С-416М1).

Principle pressure switch of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) of a foreign company is based on a comparison of the forces arising from the pressure of compressed air transmitted by the membrane and the forces of elastic deformation of the spring. There is a switch on the relay for manual control of the engine of the Bezhetsk piston compressors C415M (C 415 M, C-415M1), C416M (C 416 M, C-416M1).
Setting the pressure switch of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) MDR 2/11
The MDR 2/11 relay is configured as follows:

1. remove the protective cover of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1);
2. adjust the operating pressure range of the Bezhetsk piston compressors C415M (C 415 M, C-415M1), C416M (C 416 M, C-416M1) (Rotkl and R) - for this, rotate the nuts on both studs (of equal diameter and side by side) by an equal number of revolutions located), compressing or releasing the spring;
3. adjust the value of the difference between the Bezhetsk piston compressors C415M (C 415 M, C-415M1), C416M (C 416 M, C-416M1) (AR) between the shutdown pressure (Rotkl) and the shutdown pressure (P) - to do this, rotate the bolt (it is next to the studs and holds the smaller spring) by compressing or releasing the spring.

In which direction to rotate the nuts of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) are indicated by nearby arrows; The + (plus) sign near the arrow indicates an increase in the operating pressure, - (minus) near the arrow indicates a decrease in the operating pressure.
Customization relay pressure MDR1/11 Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1)
The MDR 1/11 relay is configured as follows:

1. remove the protective cover of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1);
2. adjust the operating pressure range of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) (Rotkl and Rvet) - for this, rotate the screw by the required number of revolutions, compressing or releasing the spring;
3. the differential pressure of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) (DR) at the relay is fixed (0.2-0.3 MPa), cannot be reconfigured,

opens the discharge valve and is directed to the receiver 1. There is a check valve 9 on the receiver.
When the dispensing valve is open, air from the receiver is supplied to the pneumatic system.
The condensate is removed from the receiver through the 10 moisture separator.
The compressor is designed to automatically perform the following operations:

1. operation of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) within the specified pressure in the receiver using control relay 13;
2. unloading the engine of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) at start-up - using pneumatic unloader 5;

- removal of condensate with a dehumidifier 10.
Small discrepancies in the description and design of the Bezhetsk piston compressors S415M (S 415 M, S-415M1), S416M (S 416 M, S-416M1)
possible due to technical improvements in design.
4.3. Electrical equipment of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1).
4.3.1. The compressor is available for connection to a three-phase
a four-wire network with a voltage of 380 V, 50 Hz (Fig. 17 and 18).
Connect the compressor to the mains via a QF circuit breaker (see wiring diagram) and an RCD type residual current device.
4.3.2.Specification for electrical schematic diagrams of the Bezhetsk piston compressors S415M (S 415 M, S-415M1), S416M (S 416 M, S-416M1)
is given in table 3.
Table 3

Note:
1. Deviations from the specification of components are possible, not
influencing the principle of operation of the electrical circuit of the Bezhetsk piston compressors S415M (S 415 M, S-415M1), S416M (S 416 M, S-416M1).
2. Perform electrical wiring in pipes with a diameter of at least 1/2 ″.
3. * Not supplied with products.
4. Delivery of Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), complete with pressure switches is possible
firm "NE-MA", in which the difference between the shutdown pressure (Rothkl) and
switch-on pressure; Г „) 0.2 MPa.
4.3.3. Discrepancies in the description and execution of the Bezhetsk piston compressors S415M (S 415 M, S-415M1), S416M (S 416 M, S-416M1) are possible due to technical improvements in the design.

Rice. 17. Electrical schematic diagram and connections
compressor model С415М (С 415 М, С-415М1).

5. SAFETY REQUIREMENTS Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1)
5.1. To work with the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) are allowed persons who have studied the passport, received instructions and familiarized themselves with the peculiarities of the compressor.
5.2. Sound power levels in octave bands and test points should not exceed the values ​​given in Table 4.
Table 4

Average geometric frequencies
octave bands, HZ

Sound power levels, dB, no more

Rice. 15. Schematic pneumatic compressor, model С415М (С 415 М, С-415М1)
1 - receiver; 2 - air filter; 3 - safety valve;
4 - low pressure cylinder manifold; 5 - pneumatic unloader;
6 - low pressure cylinder; 7 - refrigerator; 8 - high pressure cylinder;
9 - check valve block; 10 - moisture remover; 11 - safety valve;
12 - air control pressure gauge; 13 - pressure switch; 14 - dispensing valve.

Rice. 14. Check valve.
1 - case; 2 - valve; 3 - spring.

It is allowed to use Fuchs Renolin 503, 504, 505 compressor oils.
The amount of oil in the crankcase between the upper and lower marks of the dipstick for:

1. compressor head model С415М (С 415 М, С-415М1) about 0.7 l (0.6 kg)
2. compressor head model С416М (С 416 М, С-416М1) about 0.9 l (0.8 kg)

6.9. Install the drive belts of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) manually in a relaxed state, i.e. without using any tools. Tension the drive belts by moving the electric motor over the plate.
Check the tension of the belts of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) and tighten them if necessary.
Under a force of 2 kgf, the belt branch should be pulled back by 11 mm.
In this case, the axes of the shafts of the electric motor and the crankshaft (or the axes of the pulley and the flywheel) should be parallel, and the grooves of the pulley and flywheel should be opposite each other.
The parallelism of the pulley and flywheel axes should not exceed 2 mm.
Parallelism of the pulley and flywheel axes can be achieved by achieving parallelism of the end surfaces of the pulley and flywheel.
The location of the grooves of the pulley and the flywheel against each other can be ensured by the relative position of the end surfaces of the pulley and the flywheel.
The end surfaces of the pulley and flywheel are mutually located relative to each other at a distance:

1. for compressor head model С415М (С 415 М, С-415М1) - 16 mm;
2. for compressor head model С416М (С 416 М, С-416М1) - 12 mm.

Rice. 13. Safety valve.
1 - saddle; 2 - case; 3 - insert; 4 - stock; 5 - lock nut;
6 - adjusting nut; 7 - blasting head; 8 - spherical washer;
9 - spring; 10 - guide sleeve; 11 - spool.

Rice. 11. Vla remover:
1 - case; 2 - saddle; 3 - valve; 4 - guide.

9.5. Unscheduled repairs of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1) are repairs that are not provided for in the schedule and caused by a malfunction. With a good organization of the preventive maintenance system, unscheduled repairs should not take place.
9.6.In the process of operation of the Bezhetsk piston compressors С415М (С 415 М, С-415М1), С416М (С 416 М, С-416М1), the temperature of the compressor head walls, depending on the ambient temperature (up to + 40 ° С), can reach the order of
+ 170 ° C.
Table 5

The specialization of our service center is the repair of compressors manufactured in the city of Bezhetsk at the Auto Special Equipment (ASO) plant. On this page we offer you information on the cost of repairing air compressors based on the C416M head. We are also ready to accept a separate compressor head s416m for repair.

Our service center is equipped with all the necessary equipment and tools for carrying out repair work. Also, for the convenience of customers, our SC has a forklift, stacker and crane at its disposal. The service center personnel have extensive experience in carrying out such work and carry out all work on the basis of the manufacturer's documentation.

The warranty for the performed repairs is provided for 3 months.

At the request of the customer, services can be provided on-site.

Comprehensive diagnostics

Partial disassembly of the compressor head in order to identify the current state of all elements. Checking the condition of the electrical part and the bearings of the electric motor. Checking the operation of the non-return and safety valve.

Average repair at 5000 hours operating time

Complete disassembly of the compressor head, as well as cleaning from carbon deposits and oil slag: cylinder block, piston crowns, piston rings, internal cavities of the cylinder head cover. Replacement of piston rings, complete revision of the valve block with replacement of valve plates, checking the connecting rods for fatigue cracks. Replacing the bushings on the connecting rods. Inspection of the connecting rod bolt and check of the adhesion of the supporting planes. Replacement of gaskets, oil, air filters and belts.

Overhaul at 12,500 hours

During the overhaul, the following is carried out: complete disassembly of the compressor head, the work provided for in the middle repair, replacement of all worn out parts and assemblies in order to return the original parameters provided for by the technical characteristics of the compressor.

Standard hour cost

If work is needed that is not included in the average or major repairs, then their cost is calculated based on the time spent by the service engineer

Departure of a specialist in Moscow within the Moscow Ring Road

If you need to leave the Moscow Ring Road, then an additional 30 rubles will be added for each km

* The cost of work does not include spare parts and other consumables.

** For the compressor K-3 and K33, the cost for the repair of 1 head is indicated.

We work with both individuals and legal entities.

Payment for repairs is made by bank transfer, if agreed with the manager, it can be made in cash.

DIY compressor repair from 416 m

I wash it with gasoline. Your compressor is pumping for a very long time, of course, you need to do an audit

How and what is the best way to flush the compressor before changing the oil? I bought a k31 (11kw motor and s416m piston). It pumps 190l to 9atm in 2:40. It's long, isn't it?

Igor Ivanov 2 meses atrás

Hello. Should the plugs fit tightly?

Hello Igor Ivanov. Yes

Mikhail Ryabokon 4 meses atrás

Greetings . What is the resource of a 416 head, how is it to be serviced. There is a question about buying a new compressor for painting, choose between 415 and 416 heads, which is less capricious and unpretentious in operation.

Everything about everything 4 dias atrás

Mikhail Ryabokon, gentleman. Why are you asking this? The declared 416 head has 1100 liters. And this is at 10 atmospheres! Do you paint at 10 atmospheres? 3-4 atmospheres maximum.

Mikhail Ryabokon 4 meses atrás

Mikhail Ryabokon good 415 pumps about 650 - 680 lumens

Mikhail Ryabokon declared productivity 1100 lumens, in fact pumps about 1250

Mikhail Ryabokon 4 meses atrás

For painting you need 420 - 450 liters per minute will 415 have time to rest or will thresh without rest?

Yaroslav Moroz 4 meses atrás

Thanks for the video very helpful! Tell me if the interchangeability of oil pump gears for FGP is 0.6 / 10 from a car? Rebuilding the compressor head and the gears are broken

Yaroslav Moroz 4 meses atrás

I would be very grateful. I want to restore the poor fellow))) the last owner ruined.

Hollow. I can measure the length tomorrow

Yaroslav Moroz 4 meses atrás

The issue is the length of the scoop and its diameter. And is it a pipe or is it hollow? Tell me please

Yaroslav Moroz 4 meses atrás

For that the head is working ... but not metal)))

Front rear crankshaft cover 2mm, cylinder block crankcase 1mm, cylinder block valve plate 0.5mm, side covers 2mm, flanges 2mm. Better put your own in the valve plate, there is fluoroplastic.

Tony Hurtman 5 meses atrás

Tony Hurtman for nothing. If you have any questions, write

My pleasure). Which ones? they are different

Anton Kozyrev 5 meses atrás

EVG would like to know the thickness of all gaskets. For factory something they ask a lot

Anton Kozyrev 5 meses atrás

Hello. Thank you for the video. I would like to know how thick the factory gaskets are?

Andrey Kaimuldinov 8 meses atrás

Andrey Kaimuldinov well, this is his younger brother)))

Gas Sixty-seven 9 meses atrás

Thanks a lot for the video! And what, the finger in the high pressure piston, is fixed only by this convex plug and that's it?

Gas Sixty-seven good evening. yes, only with these two plugs.

Roman Zorin 9 meses atrás

Zhen, hello! I replaced the thick front gasket with two cut ones, the total thickness is 1.8 mm. Nothing clings anywhere, everything is ok.

Roman Zorin 9 meses atrás

Evgeny Serov, pulled the lid well. Let's see how the gaskets will hold.

Roman Zorin. Hi Rom. And there will not be anything to cling to)) the lid may simply not fully press against the crankcase.

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There are situations when the air compressor, peacefully rattling by the engine in the corner of the garage, starts to malfunction, or even turns off altogether. And at this moment, as luck would have it, there is a need for it. Do not be afraid, after studying theoretical information, repairing a compressor with your own hands will not seem like something unattainable.

The main purpose of air compressor units is to create a continuous, uniform jet of compressed air. The dense gas stream is then driven by various pneumatic tools. These can be airbrushes, tire inflation guns, wrenches, cutting machines, pneumatic chisels, nailers, and more.In the minimum configuration, the compressor unit is equipped with a supercharger (an engine that creates an air flow) and a receiver (a container for storing compressed gas).

Compressors with a piston system electric motor have found the greatest application in car repair shops. In the supercharger crankcase, the transfer rod moves along the axis back and forth, giving the oscillatory moment to the reciprocating movement of the piston with O-rings. The bypass valve system located in the cylinder head works in such a way that when the piston moves downward, air is taken from the inlet pipe, and upward - it is returned to the outlet pipe.

The gas flow is directed to the receiver, where it is compacted. Due to its design, the blower produces an uneven air stream. Which is not applicable to spray gun use. A kind of condenser (receiver) saves the situation, which smooths out the pressure pulsations, giving out a uniform flow at the outlet.

A more complex design of the compressor unit implies the attachment of additional equipment designed to provide automatic operation, dehumidification and humidification. And if in the case of a simple execution it is easy to localize a malfunction, then the complication of the equipment execution complicates the search. The following are the most common faults and remedies for the most common piston-type compressed gas systems.

To make it easier to find the problem, all defects can be classified by the nature of the malfunction:

• Compressor unit blower does not start
• Compressor motor hums but does not pump air or fills air reservoir too slowly
• At start-up, the thermal protection circuit breaker is triggered or the mains fuse is blown out.
• When the blower is turned off, the pressure in the compressed air tank drops
• Thermal protection circuit breaker periodically trips
• Exhaust air contains a lot of moisture
• Engine vibrates violently
• Compressor runs intermittently
• Air flow is consumed below normal

Let's consider all the causes of the problems and how to fix them.

If the engine does not start and does not hum, then the supply voltage is not applied to it. First of all, using an indicator screwdriver, check the presence of "zero" and "phase", as well as the reliability of the plug-to-socket connection. In case of poor contact, measures are taken for a tighter fit. If there is 220 V at the input of the circuit, the fuses of the compressor unit look.

Failed ones are replaced by passive protection devices of the same rating as defective ones. In no case are hot-melt inserts designed for a higher electric current allowed. If the fuse blows again, you should find out the cause of the failure - probably a short circuit at the input of the circuit.

The second reason why the unit does not start is that the pressure control relay in the receiver is faulty or the level settings are out of order. To check, gas is released from the cylinder and the supercharger is tested. If the engine is running, the relay is reset. Otherwise, the defective part is replaced.

Also, the engine will not start when the thermal overload circuit breaker is triggered. This device turns off the power supply circuit of the winding of the electrical device in case of overheating of the piston system, fraught with seizure of the motor. Let the blower cool down for at least 15 minutes. After this time has elapsed, restart it.

With an underestimated mains voltage, the electric motor does not master the scrolling of the axis, while it will hum. With this malfunction, first of all, we check the voltage level in the network using a multimeter (it must be at least 220 V).

If the voltage is normal, then the pressure in the receiver is probably too high, and the piston does not overpower the pushing of air.In this case, manufacturers recommend setting the “AUTO-OFF” automatic switch to the “OFF” position for 15 seconds and then moving it to the “AUTO” position. If this does not help, then the pressure control switch in the receiver is faulty or the bypass (check) valve is clogged.

You can try to eliminate the last drawback by removing the cylinder head and cleaning the channels. Replace the defective relay or send it to a specialized center for repair.

Compressor start-up is accompanied by blown fuse or activation of automatic thermal protection

This malfunction occurs if the installed fuse is below the recommended rated power or the supply network is overloaded. In the first case, we check the compliance of the permissible currents, in the second, we disconnect part of the consumers from the electric main.

A more serious cause of the malfunction is incorrect operation of the voltage relay or breakdown of the bypass valve. We bypass the relay contacts according to the scheme, if the engine is running, then the actuator is faulty. In this case, it is more advisable to contact an official service center for technical support or replace the relay yourself.

A drop in compressed air pressure indicates that there is a leak somewhere in the system. Risk areas are: high pressure air line, piston head check valve or receiver outlet cock. We check the entire pipeline with a soapy solution for air leaks. We wrap the detected defects with sealing tape.

The drain cock may leak if not properly closed or defective. If it is closed all the way, and the soapy solution is bubbling on the spout, then we change this part. When screwing in a new one, do not forget to wind up the fum tape on the thread.

In the case of tightness of the air line and the exhaust valve, we conclude that the compressor control valve is not working correctly. For further work, be sure to bleed all the compressed air from the receiver! Next, we continue to repair the compressor with our own hands, disassembling the cylinder head.

If there is dirt or mechanical damage to the bypass valve, we clean it and try to fix the defects. If the malfunction is not eliminated, then we replace the control valve.

This defect occurs when the power supply voltage is too low, the air flow is poor, or the room temperature is too high. We measure the voltage in the network using a multimeter; it must be at least the lower limit of the range recommended by the manufacturer.

Poor air flow into the discharge system is due to a clogged inlet filter. The filter should be replaced or washed according to the unit's maintenance manual. The piston engine is air-cooled and often overheats when in a poorly ventilated area. The problem is solved by moving the compressor unit to a room with good ventilation.

This situation occurs under the following conditions:

• Large accumulation of moisture in the receiver
• Air intake filter dirty
• The humidity in the room of the compressor unit is increased

Moisture in the output stream of compressed air is fought by the following methods:

• Drain excess fluid from the cylinder regularly
• Clean or replace the filter element
• Move the compressor unit to a room with drier air or install additional filter-moisture separators

In general, piston engines are prone to high vibration. But, if the previously relatively quiet compressor unit begins to rumble, there is a high probability that the engine mounting screws are loosened or the material of the vibration cushions is worn out. This malfunction is eliminated by pulling all fasteners in a circle and replacing the polymer vibration isolators.

Interruptions in the operation of the engine can be caused by incorrect operation of the pressure control switch or too intensive extraction of compressed air.

Excessive gas consumption occurs due to a discrepancy between the compressor capacity and the power consumption. Therefore, before buying a new pneumatic tool, carefully study its characteristics and air consumption per unit of time.

Consumers should not take more than 70% of the compressor capacity. If the power of the blower with a margin overlaps the requests of the pneumatic tools, then the pressure switch is faulty. We either repair it or replace it with a new one.

This malfunction occurs as a result of a gas leak in the high pressure system or a clogged air intake filter. Air leakage can be minimized by pulling all butt joints and wrapping them with sealing tape.

Sometimes it happens that when draining condensate from the receiver, they forget to completely close the drain valve, which also leads to a gas leak. This problem is easy to solve - by tightly closing the valve. If the dust filter is clogged, clean it or, even better, replace it with a new one.

Most of the above malfunctions can be avoided by correctly carrying out the first start-up and running-in of the mechanisms, as well as performing regular routine maintenance.

In order for the device to function properly for a long time, the recommended maintenance should be started at the initial stages of operation. Experts recommend the following actions from the date of purchase:

Timely observance of these simple requirements will keep the mechanism in good condition. Such a time-consuming procedure as repairing a compressor with your own hands will be required extremely rarely. Proper grounding will avoid problems with the electrical part of the device. Regular replacement of oil and cleaning filters will prevent premature wear of rubbing parts.