Engine Starting - Helio HT-295 Owner's Manual

2 a Check all controfs for
3 cargo is secured and that the load is properly
l
located,
4 0 Check
5 Open cowl flaps.
l
Lycoming Operator's Manual,
with each airplane and is considered a part of this manual,
Set the propeller control lever all the way forward in INCREASE RPM
position.
Be sure fuel valve is ttUNtt.
set throttle
Place mixture
Turn on auxiliary fuel pump and check pressure.
Turn ignition switch to extreme right and push (this energizes starter)*
On aircraft with control lock pin located on pilot's
control wheel shaft, it is necessary to remove the pin
before attempting to start the engine, The aircraft
designed so the starter circuit is inoperative with the
control lockpin installed.
involved in any way.
When the engine begins to fire, immediately put mixture control in
Full Rich position (full in) and allow ignition switch to return to
"both'" mag position. CAUTION - If engine fails to start immediately,
return mixture control to Idle Cut-off position.
create
will an excessive amount of fuel in the carburetor air scoop
constituting a fire hazard.
"Vapor locking is not a
However 9 under certain circumstances it can occur, i,e, when runway
and ramp temperatures exceed lOOoF particularly on sunny days and at
airfields of high elevation where temperatures exceed 80*F,
these conditions vapor locking can occur after a hot engine has been
shut-down and a start is attempted within a period of up to one hour
after initial shut-down.
with the electric fuel booster pump on, and by hearing an unusual
sound in the booster pump which
than
pumping.
freedom af
of electrical and ignition switches.
The following starting procedure is taken from the
A copy of the Lycoming rfanual is furnished
in the "Idle Cut-off" position (Full out).
NOTE
The magneto circuits are not
common
occurrence on Lycoming Go-480 engines,
Vapor lock symptoms are; zero fuel pressure
5
I
indicates it is cavitating rather
During