Vedeneyev M-14P, Maintenance Manual

Page: 57 / 381

70
TO M-14P M.S. TASK CARD No. 207
M.S. ITEM PROCEDURE: Preparation of Engine for Starting
OPERATIONS AND TECHNICAL REQUIREMENTS CORRECTIVE ACTIONS
CH
ECKED BY
1. Warm up the engine, airscrew cylinder and oil system with hot air from a ground heater
so that the cylinder head temperature is at least 30 °C as read off the indicator if the ambient
temperature is below minus 10 °C.
CAUTION: HOT AIR TEMPERATURE AT OUTLET FROM THE HEATER HOSE
SHOULD NOT EXCEED 100 to 120 °C TO AVOID WARPAGE OF RUBBER ITEMS.
2. Turn off the ignition.
3. Turn the airscrew shaft for 3 to 4 turns in its normal direction.
NOTES: 1. The airscrew shaft should turn easily, while oil in the oil tank is regarded
heated if it flows down freely from the dipstick.
2. At ambient temperatures from 5 to minus 10 °C it is allowed to start the engine without
preheating if oil in the engine and oil system is diluted with gasoline.
4. Pill the oil system with oil heated to a temperature of 75 to 80 °C, if oil was drained
from the oil system.
5. Fill 2 to 3 lit of oil heated to 75 to 80 °C through the rear breather. 6. Drain mud from
the oil tank.
7 Disconnect the hose from the oil pump flange and drain up to 3 lit of heated oil to a
clean vessel to heat the oil line running from the tank to the engine at a subzero ambient
temperature.