FES Maintenance manual Version 1.12
September 2016
Page 19 of 26
4.5 Lubrication instructions
There are only 3 parts in FES system which requires lubricating:
- two propeller pins which hold propeller blades should be very slightly lubricated
- ventilation valve pin which goes trough the shaft of motor should be very slightly
lubricated, so that travels forward and backward easily under spring pressure.
Avoid of too much lubricant, as centrifugal force will anyway quickly spill it out, resulting in
dirty spinner from inside, and dirty lower surface of propeller blades, which might initially
looks like a crack, but is only excessive lubricant.