Calidus
HANDLING / MAINTENANCE
AutoGyro_POH_Calidus Revision 4.0 – Issue Date 17.JAN.2019 8-5
8.10.1 Engine oil
See engine manufacturer’s manual.
8.10.2 Engine coolant
50/50 mix of Ethylene Glycol and distilled water, as per the engine manufacturer’s manual.
The upper engine cowling must be removed for access!
8.11 Engine Air Filter
The air intake filters need to be replaced or cleaned according to the manufacturer‘s
recommendation. Depending on environmental conditions, such as dust, sand, or pollution
the recommended rate of maintenance should be increased as required. Engine cowling
must be removed!
8.12 Propeller
Clean regularly as contamination will noticeably decrease its efficiency, resulting in a
negative effect on both aircraft performance and noise emission. Use either pure water or
add mild cleaning additives. Let contamination soak, then remove with a soft cloth or micro
fibre material and rinse thoroughly with water. Check for erosion and damage, especially at
the leading edge and blade tips. Check tight fit at the propeller blade root or any unusual
sound when tapping the blades, especially in the case of a variable pitch propeller. If in
doubt or if damage is obvious, consult the aircraft manufacturer or a qualified maintenance
station. Minor chips may be repaired. Consult the AMM for detail.
NOTE
Flight in rain will result in increased wear to the propeller leading edge. If
prolonged operation in rain is required, fitment of a suitable thin propeller tape
to the leading edge will reduce wear.
Note that propeller tape will reduce propeller efficiency and aircraft
performance dependent on the thickness and application. It is the operator’s
responsibility to understand and plan for this!
8.13 Battery
The aircraft is fitted with a maintenance-free gel electrolyte battery. Maintenance is
therefore limited to outside soundness, correct attachment, and cleaning. Check integrity of
the battery as leaking fluid contains corrosive sulphuric acid which would lead to extensive
damage when contacting the framework and attachments.
Charge the battery only with a charging device which is suitable for gel electrolyte batteries.
CAUTION
The battery must never be deep discharged, as it will be damaged. If so, it
might need to be replaced.
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