Every 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:
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.
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.