Measure the volume of the oil carefully.

These parts can easily bend, break or become incorrectly aligned.

Replace components that are worn more than the maximum limits.

If you cannot hear the alarm, adjust the volume control.

The pump did not operate because the shaft was broken.

We recommend that you torque the bolts again after 50 flight hours.

Open the valve to let nitrogen go into the oleo strut.

If one or more blades are missing, make an entry in the engine logbook.

If the rotors stop suddenly, examine the intake for unwanted material.

Assemble the movable hoist before you lift the gearbox.

A guide rod is attached to the metal bellows disc for a smooth movement of the bellows.