Before you do servicing of the hydraulic system, isolate it.

Arrows shall be used to indicate flow direction when needed to understand the schematic diagram.

Leave electrical power on, if the batteries need charging.

Make sure that you can hear the flight deck conversation in the headphone.

NOTE: If the onboard software package was lost, please supplement the package.

Remove the detergent with a clean cotton wiper that is moist with water.

Identify the component with a code to help you to install it again correctly.

In this configuration, a different test procedure is mandatory.

To find the middle point, divide the measured clearance by two.

Measure the depth of the dent with a straightedge and feeler gauges

A dedicated tool is necessary for the installation of the unit.