PURPOSE: To suppress current consumption to the small value by providing a lubricating oil feeding device with a pulse motor for driving a lubricating oil measuring means, a control means including a timer means for the pulse motor, and a power circuit for feeding power to the motor and the control means, including a solar battery.

CONSTITUTION: A lubricating oil feeding device is provided with a solar battery 11 above a case body 10 having a supporting leg 10a. A lubricating oil feed pump 12, a storage battery 13, a control device 14, and the like are enclosed in the case body 10. A pulse motor 12a is used to drive the lubricating oil feed pump 12. The control device 14 is provided with a power circuit 15 with the solar battery 11 and the storage battery 13 as power source, an overcharge preventing circuit 16 for preventing the overcharge of the power circuit 15, and a timer 19 for clocking the operating/stop time of the pulse motor 12a. As a result, sufficient operation can be performed at the solar battery.