Pilot Operating Handbook
Cavalon
SECTION 8
HANDLING / MAINTENANCE
AutoGyro_POH_Cavalon 915iS
Revision 1.0 – Issue Date 08.MAY.2019
8-4
8.7
Checking of Engine Coolant Level
Between flights, the engine coolant level is checked by verifying the level in the overflow
bottle. Insert Fuel and Engine Coolant Dip Stick. Coolant level must be visible. Replenish as
necessary. The maximum coolant level is marked by 2 narrow rings on the Dip Stick.
Before the first flight of the day check coolant level in overflow tank and replenish to
maximum. For additional details concerning this pre-flight check and a description of the
more comprehensive daily check procedure, refer to the engine manufacturer’s manual.
8.8
Tyre Pressure
Main wheels ..................................................................................1.8 – 2.2 bar
(if operating at 560kg take-off weight increase to 2.3 bar)
Nose wheel ....................................................................................2.0 – 2.4 bar
(2.2 -2.3bar if operating continuously at 560Kg take off weight)
Tyres fitted with green valve caps have been filled with nitrogen.
The mainwheels are fitted with the heavier duty Sava 4.00-8C B13 71J 6PR TT tyres for
operation at 560Kg MTOW.
The nose wheel is fitted with tyre size 400-4, or the heavier duty Tost Aero 400-8
(especially for 560Kg MTOW operation).
8.9
Lubrication and Greasing
Between maintenance intervals the owner/operator is entitled to do the following lubrication
and greasing:
Component
Interval
Application
Type
Teeter hinge
5 hrs (recommended)
as required
88-00-00-S-30477
or equivalent
Pre-rotator drive
coupling sleeves
as required
as required
88-00-00-S-30476
Caution
Rotor vibration is often caused by looseness of the teeter bolt in the rotor or
teeter tower bushes, in turn caused by insufficient greasing of the rotor grease
nipple. Regular greasing reduces wear.
While lubricating teeter hinge (especially with new bush bearings and related
close gap dimensions) it may be possible that only very small amounts of
lubricant pass through the grease nipples on the rotor. In this case, do not
press too hard but better remove the bolt, lubricate the outside and re-install.
Use a new split pin!
