ГШ Compressor
Air compressor with a 25 l oil bath. Treatment is carried out through the crankcase, in three stages, without disassembling the machine.
ГШ-type air compressor, 25 l oil bath
The class standard is 1.5 ml per litre; for this particular machine the engineer prescribed 1.2 ml/l. Piston compressors →
What is treated
- A serviceable compressor with no parts worn out by 100 % and no mechanical damage.
- Oil leaks eliminated, filter elements washed or replaced.
- Treatment is performed in place, without disassembling the compressor.
What is measured before and after
| Parameter | Instrument | How and when |
|---|---|---|
| Output — time to fill the receiver from 0 to 3.0 atm | stopwatch | With serviceable shut-off valves. |
| Instantaneous power and phase currents at idle | clamp meter, wattmeter | — |
| Instantaneous power and current at rated load | clamp meter, wattmeter | At a fixed delivered pressure. |
| Oil pressure from the oil pump | standard calibrated pressure gauge | At a fixed oil temperature. |
| Vibration level at fixed points of the frame | vibration meter | Preferably at the crankshaft main bearings. |
Dosage rates
| Compound | Rate | How and when |
|---|---|---|
| Gel for compressors and bearings | 1.2 ml per 1 litre of the standard oil per stage | 25 l bath: 30 ml per stage, 90 ml for three stages (10 tubes: 3 + 3 + 4). |
Treatment stages
- In a separate vessel, dilute the gel in the standard oil heated to 50–60 °C (1 part gel to 5–10 parts oil), stir until completely dissolved and add to the crankcase of the warmed-up compressor.Start of total operating time count
- The second stage is performed in the same way as the first.After 8–12 hours of total operating time
- The third stage is performed in the same way as the first.After a further 8–12 hours of operating time
After treatment
- Treatment is complete after 450 hours of total operating time.
- The measurements are repeated in full and compared with the initial ones.
Points to watch
- Cylinder-piston groups with graphite and Flubon (antifriction polymer composite materials) piston rings are not subject to treatment.
- A new compressor, or one with wear of up to 10 %, is treated in two stages instead of three.
- Electrical parameters are to be measured with digital instruments only: the standard analogue (pointer) instruments lack the required sensitivity.
Source: XADO applied procedure, lead engineer I. N. Sharaikin. Class standard — instruction IE-24.6-25612000-005-2008, method No. 1. Analysis: state/DRIVE_METHODS.md.