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Flight Manual
Cavalon
SECTION 8
HANDLING / MAINTENANCE
RSUK0287_POH_Cavalon
Revision 3.0, Issue Date 06.04.16
8-4
8.7
Checking of Engine Coolant Level
Between flights, the engine coolant level is checked by verifying the level in the header
tank. 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 expansion 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 at 560Kg take off weight)
Tyres fitted with green valve caps have been filled with nitrogen.
The mainwheels use tyre size 400/100-2Ply (with inner tube) and nose wheel tyre size 400-
4. If flying in the winter with a frozen-over or snow covered runway, it is advisable to remove
the wheel spats in order to avoid their damage and snow build up inside them. It is the
pilot’s responsibility to ensure that in the rear part of the spat no snow has built up, which
could lead to freezing against the wheels and stopping them from turning. Always use loctite
243 on wheel spat centre bolt,
The above tyre is used for its light weight (1.085Kg) and low replacement cost. Approved
heavy duty alternative is 4.00-8 55M tyre, which weigh 2.04Kg each. Other tyre options
require specific approval.
For operation at 560KgMTOW, the mainwheels use Sava 4.00-8C B13 71J 6PR TT tyres
and nose wheel tyre is a Tost Aero 400-8.
Note that operation of the aircraft on very slippery surfaces requires great care – the aircraft
may slide sideways during pre-rotation, take off, or in ordinary ground handling, resulting in
high potential for an accident. Use care!
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