Perform regular maintenance and make sure lights are turned off when not in use.

After an initial cleaning, you may decide to perform further maintenance yourself.

"It is my expert assessment that we need to perform a bit more maintenance here."

We only perform maintenance like this when it's really necessary, and we're working on ways to reduce the impact of upcoming work.

A county worker died performing maintenance on the dam in 2009.

From the early 1960s the city performed only minimal maintenance.

In some instances, you may be asked to qualify your ability to perform such maintenance.

Soon, the company could not afford to pay salaries or perform maintenance on the buildings.

"At the moment most of the crew is performing diagnostic tests and maintenance."

Court IT staff will be performing maintenance on the system.