Date of issue: 10/03/31
Revision: -
PS-POH-1-1-01
SECTION 4
NORMAL PROCEDURES
4-5
CAUTION
•
The starter should be activated for a maximum of 10 [sec], followed by
2 [min] pause for starter cooling.
•
As soon as engine runs, adjust throttle to achieve smooth running at
approx. 2,500 [rpm]. Check the oil pressure, which should increase within
10 [sec]. Increase the engine speed after the oil pressure has reached
29 [psi]
(
2 [bar]) and is steady.
•
To avoid shock loading, start the engine with the throttle lever set for
idling or 10 % open at maximum, then wait 3 [sec] to reach constant engine
speed before new acceleration.
•
Only one magneto should be switched ON (OFF) during ignition magneto
check.
4.2.3 Engine warm up, Engine check
Prior to engine check block the main wheels using chocks.
Initially warm up the engine to
2,000 [rpm]
for approximately
2 [min]
, then
continue to
2,500 [rpm]
till oil temperature reaches
122 [°F] (50 [°C])
.
The warm up period depends on ambient air temperature.
Check both ignition circuits at
4,000 [rpm]
for Rotax 912 ULS. The engine
speed drop during the time either magneto switched OFF should not exceed
300 [rpm]
. The max. engine speed drop difference between circuits L and R
should be
115 [rpm]
.
NOTE
Only one magneto should be switched ON (OFF) during ignition magneto check.
Set max. power for verification of max. speed with given propeller and engine
parameters
(temperatures and pressures)
.
Check acceleration from idling to max. power. If necessary, cool the engine at
idle [rpm]
before shutdown.
CAUTION
The engine check should be performed with the aircraft heading upwind and not on
a loose terrain (the propeller may suck grit which can damage the leading edges of
blades).
CAUTION
The engine check should be performed with the aircraft heading upwind and not on
a loose terrain (the propeller may suck grit which can damage the leading edges of
blades).
Summary of Contents for Piper Sport
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