Operating Manual
UL
POWER
UL260i UL260i
F
UL260i
S
UL260i
SA
MO 260A01 Revision No: 6
Date:
2014-09-15
Page: 17 of 22
Standard operation
Daily/Pre-flight checks
WARNING:
Conduct checks on cold engines only as there could be a risk of burns and scalds!
Turn the propeller by hand in the direction of engine rotation several times and observe engine for
odd noises or excessive resistance and normal compression. If irregular, first check tappet
adjustment.
WARNING:
Make sure ignition is turned OFF when inspecting the engine. Have the cockpit
occupied by a competent person.
Check that all spark plugs, leads and electrical connections are secure.
Verify the free movement of the throttle cable over the complete range. Check from cockpit.
Check for any oil and fuel leaks.
Note:
Fuel pump must have been switched on to ensure the fuel lines are under pressure.
Check oil level and replenish as required.
Note:
The oil level should be between the min. and max. marks. Before long periods of operation
ensure the level is at least up to mid position. Difference in oil quantity between min. and
max. level is 0.8 litres.
Inspect exhaust system for damage, leakage and general condition.
WARNING:
Do not release the engine into service before rectification of any possible problem
found during the daily/pre-flight checks.
Engine start
WARNING
: Do not start the engine if any person is near the aircraft.
1. Fuel tap ............................... OPEN
2. Master switch ......................... ON
3. ECU ..................................... ON
3. Ignition Coils .......................... ON
4. Fuel pump ............................. ON (if not connected to ECU steering relay)
Attention
:
Pump fuel around for a few seconds before starting the engine to avoid vapour lock
and ensure fresh fuel from the tank is available.
5. Throttle lever ........................ set to 10% position
6. Starter ................................. ENGAGE
Attention
: Activate starter for max. 5 seconds only (without interruption), followed by a
cooling period of 15 seconds if restart is necessary. Do not engage starter as long as
engine is turning. Wait until complete stop of engine.
As soon as engine is running adjust throttle to achieve smooth running at approximately 1200 rpm.
Check if oil pressure has risen within 5 seconds (if not: shut down). Verify pressure remains within
the limits.
Attention
: Increase of engine speed is only permitted when oil pressure reading remain below
maximum.
Check fuel pressure (2.4 à 3.8 bar)
