Key Technology

March 2013

Whether you are just starting up your season or getting ready for your end of season shut down, vibratory conveyor maintenance should be part of your process.  If you are a year-round processor it is a normal part of your maintenance routine. This month we will cover the recommended procedure and a few tips from the field for oil replacement in your Iso-Drive and a refresher on tuning your shaker.

Routine Shaker Maintenance: Oil Replacement

Iso-DriveEvery two years the oil in the Iso-Drive should be replaced. On horizontal mounted drives, we recommend the drive be removed from the shaker to perform this task. This important step is vital to ensure the long-term health and operation of your shaker.

By not removing the drive, you cannot ensure that all the oil has been removed prior to refilling, which can result in overfilling. This can cause seals to fail due to over-pressure created when the drive is in use.

We strongly recommend that you remove horizontal mounted drives to drain and replace the oil. However, if this step is not taken, here are a couple of tips to prevent overfilling:

  1. To ensure that all residual oil is removed, some customers use a plastic bottle with a tube attached. The air is squeezed out of the bottle, and a tube is fed down the fill/drain hole to siphon the residual oil out of the drive. Repeat as needed to drain all of the oil.

  2. To prevent overfilling, measure the amount of oil removed and only refill with the same amount. Again, we recommend that all oil be removed, as the residual oil will not perform to the same level as new oil and may cause drive failure.

It is also vital to replace the oil with the correct weight, we recommend you refill the drive with a synthetic 5w-30. Using heavier weight oil such as 90w gear oil will cause the drive to overheat, which may lead to failure of the fiber gear.

Tuning Your Shaker

Your vibratory conveyor was designed to operate at a specified stroke and speed (RPM) for the product you process. Overstroking will cause the arms to wear out faster and could potentially damage the bed or frame. The spring arms should be checked regularly for wear and breakage. Refer to your shaker drawings for the design stroke and speed for your shaker.
  Stroke Indicator
Quick Tune Procedure for Iso-Flo Shakers:
  1. Inspect bed for product build-up.
  2. Make sure that all accessories are tight.
  3. Check the actual RPM and stroke.
  4. Adjust RPM to match specified RPM, if necessary. 
  5. Adjust arm springs until actual stroke is equal to design stroke.
  6. Inspect often and on a regular basis (daily is recommended). 
  7. Maintain a record of the inspection including speed and stroke.
  8. Refer to your technical manual for more detailed instructions.
The design stroke is NOT the same as the "Max Stroke" that is stenciled on your shaker's frame. The Max stroke is the upper limit that a shaker should not exceed. Think of it like the redline on the tachometer for your car's engine. You should never allow your shaker to operate at the Max stroke for extended periods of time. Continued operation at or above this limit will eventually cause damage.

Thank You!

Our global services team is here to assist you with all of your training, service and parts needs.

Contact us at:
Europe, Middle East, India & Africa +31 (0)345 509900

Australia & New Zealand +61 3 9552 9200
North America and other regions +1.877.UPTIME1 (+1.877.878.4631)


Your Service Team
Key Technology, Inc.

Key Technology 150 Avery Street, Walla Walla, WA 99362 USA | +1 509.529.2161 |

To update your subscription or unsubscribe from communication from Key Technology please visit our subscriptions page.