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Troubleshooting Chart
NOTE: The following chart may refer to components which are not part of your agitator. Variants are indicated in italics.
NOTE: In any case EKATO shall be informed about any trouble with the agitator
| Indication | Possible cause | Remedy |
| Strange noise from outside the vessel | Foreign body in the fan wheel | Remove the foreign body Replace the fan wheel, when damaged |
| Lack of lubrication in a bearing | Replace the bearing | |
| Incorrect oil level in gear/geared motor or ancillary equipment | Fill oil to the proper level; search for leakage where applicable | |
| Incorrect oil quality | Check that the correct oil quality has been used If not, empty, clean and refill with correct oil | |
| Worn or damaged parts | Check bearings and gears for wear | |
| In case of excessive wear: search for the cause and remedy, then repair/replace as necessary | ||
| V-belts slips | Adjust to prescribed belt tension | |
| Strange noise inside the vessel | Components inside the vessel (e.g. impeller, baffle plates, bolts) have loosened | Check the interior of the vessel |
| Indication | Possible cause | Remedy |
| Vibrations/oscillations | Agitator shaft rotates at critical speed, caused by incorrect impeller placement | Position the impeller(s) on the shaft according to the specification (→ chapter 1) |
| Unauthorized alteration of speed | Adjust speed acc. to the specification (→ chapter 1) | |
| Bearing damage | Replace bearings | |
| Crustation of product | Remove crustations | |
| Bushing of the steady bearing worn | Replace the bushings | |
| Loose agitator components | Tighten bolts and nuts with the prescribed torque values | |
| Agitator shaft loosens Agitator shaft or bearing shaft bends or breaks | Threaded agitator shaft: Incorrect direction of rotation | Set direction of rotation acc. to arrow |
| Flange coupling: overstretched or failed bolts | Insert new bolts and secure | |
| Agitator shaft under lateral tension caused 公/ the steady bearing | Adjust the steady bearing to the free-hanging agitator shaft | |
| Agitator support/ vessel flange inclination exceeds permissible 0.2° | Level agitator support/vessel flange | |
| Insufficient agitation | Product data deviates from specification | Consult EKATO |
| Improper positioning of impellers (pumping direction, altitude) | Position impellers acc. to specification or dimensional sheet (→ chapter 1) | |
| Variable drive not adjusted to the correct speed | Adjust to the specified speed | |
| Baffle plates not acc. to specification (→ chapter 1) | Rectify baffle plate installation acc. to specification (→ chapter 1) | |
| Motor switched off by overload protection | Overload due to changed product data | Consultation of EKATO |
| Overload due to incorrect speed | Adjust to the specified speed | |
| Overload due to incorrect impellers | Install impeller type, quantity, number of blades and diameter acc. to specification (→ chapter 1) | |
| Overload due to crustation, caused by too large particles | Consult EKATO w.r.t. product data | |
| Overload due to overtightened stuffing box | Release the gland and tighten again, if necessary overhaul (→ section 7.2) | |
| Excessive heating of gear | Lack of oil | Refill oil |
| Lack of cooling water | Check cooling water supply | |
| Incorrect oil quality | Empty, clean and refill with correct oil | |
| Bearing damage | Replace bearings | |
| More causes see "Strange noise.. ” |
| Indication | Possible cause | Remedy |
| Mechanical seal: Falling buffer liquid level or gas bubbles in the buffer liquid | Seal rings worn or broken O-rings damaged | Replace parts (→ seal manufacturer instructions chapter 9) |
| Tubing connections untighten or damaged | Tighten the connections or repair | |
| Gear leaks | Shaft seal rings worn | Replace |
| Too high oil level | Drain oil to the correct level | |
| Drive rotates, agitator does not | Defective coupling (plastic drive pins) | Repair coupling |
| Friction rings/friction cone worn | Replace parts | |
| V-belts slips | Adjust to prescribed belt tension | |
| Destroyed gear wheels | Repair gear | |
| Stuffing box overtightened | Release, retighten, replace packing if necessary Check for successive damage (failed coupling parts, worn friction elements | |
| Impellers block due to crustation | Remedy the cause (process?) | |
| Check transmitting parts, shafts and impellers for damage | ||
| Components (e.g. parallel key) omitted during assembly | Retrofit |
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