SECTION 4
PS-POH-1-1-13
P
P
S
S
-
-
2
2
8
8
C
C
r
r
u
u
i
i
s
s
e
e
r
r
NORMAL PROCEDURES
Date: 2014-06-17
4-7
Rev. No.: -
4.4 Normal Takeoff
4.4.1 Engine run-up
CAUTION
The engine run-up 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).
1. Brakes
- fully applied
2. Throttle
- MAX
3. Engine speed
- check (5,000 ±100 rpm – wind calm)
4. Engine gauges
- within limits
5. Throttle
- IDLE
6.
Engine acceleration
- check
CAUTION
To prevent impact load, wait for around 3 sec. after throttling back to partial load to
reach constant speed before re-acceleration.
7. Ignition check
- set engine speed to 4,000 rpm
- switch ignition gradually to
L – BOTH – R – BOTH
(Max. engine speed drop with only one ignition
circuit must not exceed 300 rpm.
Max. engine speed drop difference between
circuits L and R should be 115 rpm.)
8. CARBURETOR AIR
- PULL HOT
- check carburetor preheating function
(Engine speed drop approximately 50 rpm.)
- push OFF
9. Throttle
- IDLE
NOTE
For checking the two ignition circuits, only one circuit may be switched OFF and ON
at a time.
