GE C11, AF-300 manual Periodic inspection list, Discoloration and distortion Visual Not abnormal

Table 8-2-1 Periodic inspection list

	Check part			Check item		How to inspect	Evaluation criteria
Environment			1) Check the ambient air tem-		1)	Measure by visual	1) The specified standard
				perature, humidity, vibration,		inspection and the	value must be satisfied.
				atmosphere (dust, gas oil mist,		meter.	2) No foreign matter or
				waterdrops)	2)	With visual in-	dangerous objects left
			2) Are foreign matter or dangerous			spection	near the drive?
				objects such as tools not left
				around the equipment?
Voltage			Are the voltages in the main circuit		Measure with the mul-		The specified standard value
			and the control circuit normal?		timeter.		must be satisfied.
Keypad panel			1)	Is the display hard to read?	1), 2) Visual		1),2) The display can be
			2) Are the characters complete?			inspection	read and is not abnormal.
Structure such as a			1) Abnormal sound or vibration?		1) With Visual		1), 2), 3), 4), 5)
frame or cover			2)	Loose bolts (part to be	inspection and hearing		Not abnormal.
				tightened) ?	2) Tighten more
			3	Deformation or damage?	3), 4), 5) With
			4)	Discoloration by		visual inspection
				overheating?
			5)	Stains and dust?
		Common	1)	Loose and missing bolts?	1) Tighten more		1), 2), 3):
			2)	Deformation, cracks, damage,	2), 3) Visual		Not abnormal.
				and discoloration by		inspection
				overheating and			Note: A discolored short-
				deterioration in the			circuiting bar does not indi-
				equipment and the insulation?			cate a problem.
			3)	Stains and dust?
		Conductor	1)	Discoloration and distortion	1), 2) Visual		1), 2) Not abnormal.
circuit		and wire		of a conductor by overheating?		inspection
			2)	Cracks, crazing, and
			discoloration of the wire
Main			sheath?
		Terminal	Not damaged?		Visual inspection		Not abnormal.
		block
		Smoothing	1)	Electrolyte leakage,	1), 2) Visual		1), 2) Not abnormal.
		capacitor	discoloration, crazing, and			inspection	3) The capacitance is
			swelling of a case?		3) Measure using the		initial value x 0.85 or
			2)	Is a safety valve not out, and		capacitance	more.
			are any valves protruding		measuring
			excessively?			instrument (Note)
			3)	Measure the
			capacitance if necessary

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