# Preventive Maintenance Level 1

## Maintenance level 1

Do maintenance after 6.000.000 pulses, when the POWER FOCUS controller shows the message: “Pulse unit oil level low”, or once a year, whichever comes first.

For maximum tool performance follow below instructions and use recommended service tools and service kits from Atlas Copco. Always use tightening torque and lubrications as recommended by Atlas Copco.

## Tool Handle

- Make a visual inspection for any damage.

- Inspect the yoke and suspension points.

- Inspect the ball bearing in the Pulse unit casing and the surface of the Anvil.

## Electric Motor

- Listen to any unexpected noise.

## Pulse Unit

- Change the oil accordingly, see Oil Filling and Changing Instruction for Pulse Unit.

- Make sure that the pulsing frequency is within limits, see Tool Condition Test.

## Rotor Nut Complete

- Perform a visual inspection of any damage.