Answer: (1) Lubricating oil pressure, temperature and oil supply conditions of various parts.
(2) Suction and exhaust temperatures and pressures.
(3) Inlet and outlet temperatures and cooling water supply conditions.
(4) Whether there are abnormal noises from various moving parts.
(5) Whether there are air, oil or water leaks at various connections.
(6) Whether there are loose connections.
(7) Temperatures of major friction parts such as main bearings and shaft seals.
(8) Current, voltage and temperature rise of the motor.
(9) Whether the automatic control device is sensitive.
