Installation & Operation Manual
O-360 and IO-360 Series Engines
© March 2004 Superior Air Parts Inc. Chapter 6 • Normal Operating Procedures
5
Table 6-3 • Ground Running / Fixed Wing Warm-Up
1. Head the Aircraft into the wind.
2. Leave mixture control “Full Rich” for the entire warm up period. This setting is
dependent upon flight elevation (pressure altitude).
3. Operate only with the propeller in "Low Pitch" setting.
4. Operate at approximately 1000-1200 RPM for at least one minute in warm weather
and as required during cold weather to prevent cavitation in the oil pump and to assure
adequate lubrication. Avoid prolonged idling and do not exceed 2200 RPM on the
ground.
5. Advance throttle slowly until tachometer indicates an engine speed of approximately
1200 RPM. Allow additional warm-up time at this speed depending on ambient
temperature. This time may be used for taxiing to takeoff position. The minimum
allowable oil temperature for run-up is 75°F.
CAUTION DO NOT OPERATE THE ENGINE AT RUN-UP SPEED UNLESS OIL TEMPERATURE IS 75°F
MINIMUM AND OIL PRESSURE IS WITHIN SPECIFIED LIMITS OF 50 – 95 PSI.
CAUTION: OPERATION OF THE ENGINE AT HIGH RPM BEFORE REACHING MINIMUM OIL
TEMPERATURE MAY CAUSE LOSS OF OIL PRESSURE AND ENGINE DAMAGE.
6. Perform all ground operations with cowling flaps, if installed, fully open and propeller
control set for maximum RPM except for brief testing of propeller governor (if so
equipped).
7. Restrict ground operations to the time necessary for warm-up and testing.
8. Engine is warm enough for take-off when the oil temperature exceeds 75° F and the
engine does not hesitate with throttle advancement.
Table 6-4 • Ground Running / Rotorcraft Warm-Up
1. Head the aircraft into the wind.
2. Leave mixture control “Full Rich” for the entire warm up period.
This setting is dependent upon field elevation (pressure altitude).
3. Warm-up at approximately 1,900 - 2,100 RPM with rotor
engaged in accordance with manufacturer's instructions until all
systems are properly warmed.
4. Engine is warm enough for take-off when the oil temperature
exceeds 75°F and the engine does not hesitate with throttle
advancement.