Where is the oil level sight glass of WPA worm gear reducer?

The oil level sight glass (oil gauge/oil mirror) of the WPA worm gear reducer is usually located on the side of the reducer case.

It is generally a circular transparent oil window, designed in the middle and lower part of the side of the box, so that you can directly observe the internal lubricating oil level with the naked eye.

How to confirm and observe oil level

Find the location: Look for a transparent circular window on the side of the reducer. If you can"t find it on the side, you can also check the location of the end cover of the box.

Observation standard: When the reducer is stopped and in a horizontal state, the normal lubricating oil level should be maintained at the center line (middle line) of the oil mirror, or between 1/2 and 2/3 of the oil mirror scale.

Additional explanation: The oil level sight glass (used to check the oil level) and the oil filling hole are two different locations. The oil filling hole of WPA reducer is usually on the top of the box.

If you really can’t find a transparent oil mirror on the side of the reducer you have, it is recommended to check whether there is a physical oil level gauge, or directly check the specific operating instructions of the equipment to confirm.

To facilitate operation, you can remember the quick positioning tips: ‌Inject the upper part and lower it, and check the oil level in the middle‌—the top is the oil filling hole, the bottom is the oil drain plug, and the middle of the side is the oil level observation position.