# 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 tightenings, 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 effect the tool performance.

## Detect Low Oil Level in the Pulse Unit

- Longer tightening time

- Low oil warning

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

- Low torque

To measure the pulse frequency, see Tool Condition Test.