PEDRO GIL RN - FAULT DIAGNOSIS: OIL AND FLOW ISSUES; OIL LEVEL AND LOSS ISSUES; CONDENSATION AND DRIPPING; FLOW AND CONSUMPTION PROBLEMS

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OIL IN COMPRESSION CHAMBER, OIL LOSS
- Casing with excess oil, level too high. Reduce oil level.
- When the machine is stopped, the correct oil level should be according the manual point 9.0.
- Clean the compression chamber with a degreaser.
DRIPPING OR CONDENSATION THROUGH THE DRILLED EXIT HOLES FOR CONDENSED VAPOUR
- If the blower works with air, the drilled exit holes for condensation must be open.
- If the blower works with gas or gases, the drilled exit holes for condensation must be closed, piped off, etc.
- When the blowers work with high differentials or high pressures, there are special solutions depending on
the operating conditions and applications.
Causes and solutions for oil loss:
- Excess lubricating oil, correct level.
- Temperature too high, low oil viscosity. Check oil type.
- Sealing sections of labyrinth worn. Change them.
- Incorrect levelling of blower or blower/motor unit. The difference in level must be significant.
Check for level and correct it.
OIL LOSS THROUGH FILLING AND EMPTYING CAPS AND OIL LEVEL SIGHT GLASSES
First check tightness and then check the gaskets.
OIL LOSS AT THE RADIAL SEALING JOINT OF THE DRIVE SHAFT PIVOT
Change the radial sealing joint and also the ring fastener. The point of contact with the joint in the ring
produces a small scratch or crack, which means that the seal and ring must be changed.
DIRTY LEVEL SIGHT GLASSES
Dismantle and clean glass. If it cannot be completely cleaned, replace it.
INSUFFICIENT SUCTION FLOW
-Faulty blower sizing. Check performance curve. If you do not have it, contact the supplier or manufacturer and
ask for it.
- Check the number of revolutions of the blower, and the differential pressure.
- The internal tolerance values of the blower are too big due to wear or low volume output. Check tolerance values,
note them down and consult the supplier or manufacturer. It may be necessary to replace the pistons with
new ones.
- The blower may be operating with a pressure differential which is too high, thereby reducing the suction flow.
-
The resistance in the suction filter is too high. Clean the filter or change it if necessary.
POWER CONSUMPTION HIGHER THAN NORMAL
- The operating conditions are not the same as those specified in the order. In this case, measure and note down
the new operating conditions and then calculate the new operating level, and check if the power level is correct.
- An excessively high lubricating oil level may produce a higher consumption. Correct the oil level.
- After either 3 years or 20,000 hours of service, we recommend that a general service be carried out by an
authorised specialist.