# Oil Level in the Pulse Unit

The right oil level in the Pulse unit is important for the tool to work correctly.

The need to add oil to the Pulse unit will vary depending mainly on the number of tightening, torque level and number of pulses (tightening time).

Operating the tool on a low oil level will result in faster wear of the parts in the Pulse unit. It will also affect the tool performance and accuracy.

Always check the tightening torque after filling the oil.

## Detect Low Oil Level in the Pulse Unit

- Longer tightening time

- Very high pulse frequency, especially when the tool has not been used for a while.

- Low torque or abnormal torque changes (increased scatter).

- No shut-off.

To measure the pulse frequency use a static torque transducer or an inline transducer connected to torque testing equipment, as per the Tool Condition Test.

Relevant Information

- Tool Condition Test
- Torque Check - Residual Torque Measurement on Actual Joint