-10-
Upon completing reassembly after repair, measure the insulation resistance and conduct a dielectric
strength test.
Insulation resistance:
7 M
Ω
or more using AC 500 V megohm tester
Dielectric strength:
AC 4,000 V/1 minute, with no abnormalities (220 V to 240 V)
AC 2,500 V/1 minute, with no abnormalities (110 V to 127 V)
After no-load operation for 30 minutes, the no-load current values should be as follows:
Voltage (V)
110
120
127
220
230
240
Current (A) Max.
5.0
4.4
4.6
2.7
2.6
2.7
Diamond wheel runout: Deflection of the diamond wheel must be 0.6 mm or less at the 100 mm dia. points.
Insulation Tests
No-Load Current Value
Product Accuracy
