4-11
Virus SW 121
Pilot Operating Handbook
POH-121-00-40-001
PAGE REV. 0
PAGE
SECTION
4
NORMAL PROCEDURES
4.4.2
STARTING ENGINE
If the engine is warm, no choke is required. For the first start of the day and
in cold conditions, applying choke will be necessary.
If the airplane will be started using external power, keep all personnel and
power unit cables well clear of the propeller rotation plane.
1
Brakes
Hold
2
Fuel Selector
Fullest Tank
3
Master Switch
ON (Check Volts)
4
Choke
As required
5
Propeller Area
Clear
6
Throttle Lever
Open 10 mm
7
Oil Pressure Indication
Available
8
Ignition Switch
Start (Release after engine starts)
CAUTION:
Limit cranking to intervals of 20 seconds with a 20 second cool-
ing period between cranks. This will improve battery and contactor life.
9
Thottle Lever
Maintain 2500 RPM or below
10
Oil Pressure
Check
11
Choke
Slowly close
12
Engine Parameters
Monitor
13
Ammeter/Indication
Check
CAUTION:
After starting, if the oil gauge does not begin to show pressure
within 30 seconds in warm weather and about 60 seconds in very cold
weather, shut down engine and investigate cause. Lack of oil pressure indi-
cates loss of lubrication, which can cause severe engine damage. In this time
also consider the time the avionics suite needs to start displaying engine
information.
Summary of Contents for Virus SW 121
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