Hitachi J300U Series instruction manual 10-4, Daily Inspection and Periodic Inspection 2/3

10-4

Daily Inspection and Periodic Inspection (2/3)

Inspection	Inspection item	Inspection content	Inspection cycle		Inspection method	Criteria	Standard	Instruments
							replacement
location
			Regularly	Periodic			period
Main	Terminal board	No damage.			Visual inspection	No abnormalities.	___	___
circuit
	Smoothing	(1) Check for leaking			Visual inspection of	No abnormalities in (1) and	5 years	___
	capacitor	(2) Check for swelling			(1) and (2).	(2).	(Note 1)
	Relays	(1) Check for stuttering noise			(1) Aural inspec-	(1) No abnormalities.	5 years	___
		when operating			tion.
	Resistors	(1) Check for large cracks			(1) Visual inspection.	(1) No abnormalities.	___	___
		or changes in color
	Cooling fan	(1) Check for abnormal			(1) Rotate manually	(1) Smooth rotation	2 - 3 years	___
		vibrations and noise			with power off
					and increase
					tightening
		(2) Check for dust			(2) Visual inspection	(2) No abnormality